2.25.0

Fix typos

ChangeLog

@@ -1,6 +1,42 @@
 # for this file format description,
 # see https://github.com/olivierlacan/keep-a-changelog
 
+## [2.25.0] - 2019-05-09
+### Added
+- Create, publish and handle encrypted LeaseSet2
+- Support of b33 addresses 
+- RedDSA key blinding
+- .b32.i2p addresses in jump links
+- ntcp2.addressv6 parameter
+### Changed
+- Allow HTTP headers without value
+- Set data directory from external storage path for Android
+- addresshelper support is configurable per tunnel
+- gradlew script for android build
+### Fixed
+- Deletion of expired encrypted LeaseSet2 on floodfills
+- ipv6 fallback address
+- SSU incoming packets routing
+
+## [2.24.0] - 2019-03-21
+### Added
+- Support of transient keys for LeaseSet2
+- Support of encrypted LeaseSet2
+- Recognize signature type 11 (RedDSA)
+- Support websocket connections over HTTP proxy
+- Ability to disable full addressbook persist
+### Changed
+- Don't load peer profiles if non-persistant
+- REUSE_ADDR for ipv6 acceptors
+- Reset eTags if addressbook can't be loaded
+### Fixed
+- Build with boost 1.70
+- Filter out unspecified addresses from RouterInfo
+- Check floodfill status change
+- Correct SAM response for invalid key
+- SAM crash on termination for Windows
+- Race condition for publishing
+ 
 ## [2.23.0] - 2019-01-21
 ### Added
 - Standard LeaseSet2 support

Makefile.linux

@@ -19,10 +19,7 @@ else ifeq ($(shell expr match ${CXXVER} "4\.[7-9]"),3) # >= 4.7
 	NEEDED_CXXFLAGS += -std=c++11 -D_GLIBCXX_USE_NANOSLEEP=1
 else ifeq ($(shell expr match ${CXXVER} "4\.6"),3) # = 4.6
 	NEEDED_CXXFLAGS += -std=c++0x
-else ifeq ($(shell expr match ${CXXVER} "[5-7]\.[0-9]"),3) # gcc >= 5.0
+else ifeq ($(shell expr match ${CXXVER} "[5-9]"),1) # gcc >= 5
-	NEEDED_CXXFLAGS += -std=c++11
-	LDLIBS = -latomic
-else ifeq ($(shell expr match ${CXXVER} "[7-8]"),1) # gcc 7 ubuntu or gcc 8 arch
 	NEEDED_CXXFLAGS += -std=c++11
 	LDLIBS = -latomic
 else # not supported

README.md

@@ -1,3 +1,6 @@
+![GitHub release](https://img.shields.io/github/release/PurpleI2P/i2pd.svg?label=latest%20release)
+![GitHub](https://img.shields.io/github/license/PurpleI2P/i2pd.svg)
+
 i2pd
 ====
 
@@ -38,8 +41,12 @@ Resources
 Installing
 ----------
 
-The easiest way to install i2pd is by using
+The easiest way to install i2pd is by using precompiled packages and binaries.
-[precompiled binaries](https://github.com/PurpleI2P/i2pd/releases/latest).
+You can fetch most of them on [release](https://github.com/PurpleI2P/i2pd/releases/latest) page.  
+Please see [documentation](https://i2pd.readthedocs.io/en/latest/user-guide/install/) for more info.
+
+Building
+--------
 See [documentation](https://i2pd.readthedocs.io/en/latest/) for how to build
 i2pd from source on your OS.  
 
@@ -54,10 +61,10 @@ Build instructions:
 
 **Supported systems:**
 
-* GNU/Linux x86/x64		- [![Build Status](https://travis-ci.org/PurpleI2P/i2pd.svg?branch=openssl)](https://travis-ci.org/PurpleI2P/i2pd)
+* GNU/Linux - [![Build Status](https://travis-ci.org/PurpleI2P/i2pd.svg?branch=openssl)](https://travis-ci.org/PurpleI2P/i2pd)
 * Windows - [![Build status](https://ci.appveyor.com/api/projects/status/1908qe4p48ff1x23?svg=true)](https://ci.appveyor.com/project/PurpleI2P/i2pd)
 * Mac OS X - [![Build Status](https://travis-ci.org/PurpleI2P/i2pd.svg?branch=openssl)](https://travis-ci.org/PurpleI2P/i2pd)
-* CentOS / Fedora		- [![Build Status](https://copr.fedorainfracloud.org/coprs/supervillain/i2pd/package/i2pd-git/status_image/last_build.png)](https://copr.fedorainfracloud.org/coprs/supervillain/i2pd/package/i2pd-git/)
+* CentOS / Fedora / Mageia - [![Build Status](https://copr.fedorainfracloud.org/coprs/supervillain/i2pd/package/i2pd-git/status_image/last_build.png)](https://copr.fedorainfracloud.org/coprs/supervillain/i2pd/package/i2pd-git/)
 * Docker image - [![Build Status](https://dockerbuildbadges.quelltext.eu/status.svg?organization=meeh&repository=i2pd)](https://hub.docker.com/r/meeh/i2pd/builds/)
 * FreeBSD
 * Android

Win32/DaemonWin32.cpp

@@ -50,7 +50,7 @@ namespace util
 		if (isDaemon)
 		{
 			LogPrint(eLogDebug, "Daemon: running as service");
-			I2PService service(SERVICE_NAME);
+			I2PService service((PSTR)SERVICE_NAME);
 			if (!I2PService::Run(service))
 			{
 				LogPrint(eLogError, "Daemon: Service failed to run w/err 0x%08lx\n", GetLastError());

Win32/Win32App.cpp

@@ -24,17 +24,22 @@
 #define ID_GRACEFUL_SHUTDOWN 2004
 #define ID_STOP_GRACEFUL_SHUTDOWN 2005
 #define ID_RELOAD 2006
+#define ID_ACCEPT_TRANSIT 2007
+#define ID_DECLINE_TRANSIT 2008
 
 #define ID_TRAY_ICON 2050
 #define WM_TRAYICON (WM_USER + 1)
 
 #define IDT_GRACEFUL_SHUTDOWN_TIMER 2100
 #define FRAME_UPDATE_TIMER 2101
+#define IDT_GRACEFUL_TUNNELCHECK_TIMER 2102
 
 namespace i2p
 {
 namespace win32
 {
+	static DWORD GracefulShutdownEndtime = 0;
+
 	static void ShowPopupMenu (HWND hWnd, POINT *curpos, int wDefaultItem)
 	{
 		HMENU hPopup = CreatePopupMenu();
@@ -42,11 +47,17 @@ namespace win32
 		InsertMenu (hPopup, -1, MF_BYPOSITION | MF_STRING, ID_APP, "Show app");
 		InsertMenu (hPopup, -1, MF_BYPOSITION | MF_STRING, ID_ABOUT, "&About...");
 		InsertMenu (hPopup, -1, MF_BYPOSITION | MF_SEPARATOR, 0, NULL);
+		if(!i2p::context.AcceptsTunnels())
+			InsertMenu (hPopup, -1,
+				i2p::util::DaemonWin32::Instance ().isGraceful ? MF_BYPOSITION | MF_STRING | MF_GRAYED : MF_BYPOSITION | MF_STRING,
+				ID_ACCEPT_TRANSIT, "Accept &transit");
+		else
+			InsertMenu (hPopup, -1, MF_BYPOSITION | MF_STRING, ID_DECLINE_TRANSIT, "Decline &transit");
 		InsertMenu (hPopup, -1, MF_BYPOSITION | MF_STRING, ID_RELOAD, "&Reload configs");
 		if (!i2p::util::DaemonWin32::Instance ().isGraceful)
 			InsertMenu (hPopup, -1, MF_BYPOSITION | MF_STRING, ID_GRACEFUL_SHUTDOWN, "&Graceful shutdown");
 		else
-			InsertMenu (hPopup, -1, MF_BYPOSITION | MF_STRING, ID_STOP_GRACEFUL_SHUTDOWN, "&Stop graceful shutdown");
+			InsertMenu (hPopup, -1, MF_BYPOSITION | MF_STRING, ID_STOP_GRACEFUL_SHUTDOWN, "Stop &graceful shutdown");
 		InsertMenu (hPopup, -1, MF_BYPOSITION | MF_STRING, ID_EXIT, "E&xit");
 		SetMenuDefaultItem (hPopup, ID_CONSOLE, FALSE);
 		SendMessage (hWnd, WM_INITMENUPOPUP, (WPARAM)hPopup, 0);
@@ -148,6 +159,12 @@ namespace win32
 		s << "; ";
 		s << "Success Rate: " << i2p::tunnel::tunnels.GetTunnelCreationSuccessRate() << "%\n";
 		s << "Uptime: "; ShowUptime(s, i2p::context.GetUptime ());
+		if (GracefulShutdownEndtime != 0)
+		{
+			DWORD GracefulTimeLeft = (GracefulShutdownEndtime - GetTickCount()) / 1000;
+			s << "Graceful shutdown, time left: "; ShowUptime(s, GracefulTimeLeft);
+		}
+		else
 			s << "\n";
 		s << "Inbound: " << i2p::transport::transports.GetInBandwidth() / 1024 << " KiB/s; ";
 		s << "Outbound: " << i2p::transport::transports.GetOutBandwidth() / 1024 << " KiB/s\n";
@@ -166,10 +183,13 @@ namespace win32
 
 	static LRESULT CALLBACK WndProc (HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
 	{
+		static UINT s_uTaskbarRestart;
+
 		switch (uMsg)
 		{
 			case WM_CREATE:
 			{
+				s_uTaskbarRestart = RegisterWindowMessage(TEXT("TaskbarCreated"));
 				AddTrayIcon (hWnd);
 				break;
 			}
@@ -178,6 +198,7 @@ namespace win32
 				RemoveTrayIcon (hWnd);
 				KillTimer (hWnd, FRAME_UPDATE_TIMER);
 				KillTimer (hWnd, IDT_GRACEFUL_SHUTDOWN_TIMER);
+				KillTimer (hWnd, IDT_GRACEFUL_TUNNELCHECK_TIMER);
 				PostQuitMessage (0);
 				break;
 			}
@@ -197,10 +218,28 @@ namespace win32
 						PostMessage (hWnd, WM_CLOSE, 0, 0);
 						return 0;
 					}
+					case ID_ACCEPT_TRANSIT:
+					{
+						i2p::context.SetAcceptsTunnels (true);
+						std::stringstream text;
+						text << "I2Pd now accept transit tunnels";
+						MessageBox( hWnd, TEXT(text.str ().c_str ()), TEXT("i2pd"), MB_ICONINFORMATION | MB_OK );
+						return 0;
+					}
+					case ID_DECLINE_TRANSIT:
+					{
+						i2p::context.SetAcceptsTunnels (false);
+						std::stringstream text;
+						text << "I2Pd now decline new transit tunnels";
+						MessageBox( hWnd, TEXT(text.str ().c_str ()), TEXT("i2pd"), MB_ICONINFORMATION | MB_OK );
+						return 0;
+					}
 					case ID_GRACEFUL_SHUTDOWN:
 					{
 						i2p::context.SetAcceptsTunnels (false);
 						SetTimer (hWnd, IDT_GRACEFUL_SHUTDOWN_TIMER, 10*60*1000, nullptr); // 10 minutes
+						SetTimer (hWnd, IDT_GRACEFUL_TUNNELCHECK_TIMER, 1000, nullptr); // check tunnels every second
+						GracefulShutdownEndtime = GetTickCount() + 10*60*1000;
 						i2p::util::DaemonWin32::Instance ().isGraceful = true;
 						return 0;
 					}
@@ -208,6 +247,8 @@ namespace win32
 					{
 						i2p::context.SetAcceptsTunnels (true);
 						KillTimer (hWnd, IDT_GRACEFUL_SHUTDOWN_TIMER);
+						KillTimer (hWnd, IDT_GRACEFUL_TUNNELCHECK_TIMER);
+						GracefulShutdownEndtime = 0;
 						i2p::util::DaemonWin32::Instance ().isGraceful = false;
 						return 0;
 					}
@@ -290,14 +331,27 @@ namespace win32
 			}
 			case WM_TIMER:
 			{
-				if (wParam == IDT_GRACEFUL_SHUTDOWN_TIMER)
+				switch(wParam)
 				{
+					case IDT_GRACEFUL_SHUTDOWN_TIMER:
+					{
+						GracefulShutdownEndtime = 0;
 						PostMessage (hWnd, WM_CLOSE, 0, 0); // exit
 						return 0;
 					}
-				if (wParam == FRAME_UPDATE_TIMER)
+					case FRAME_UPDATE_TIMER:
 					{
 						InvalidateRect(hWnd, NULL, TRUE);
+						return 0;
+					}
+					case IDT_GRACEFUL_TUNNELCHECK_TIMER:
+					{
+						if (i2p::tunnel::tunnels.CountTransitTunnels() == 0)
+							PostMessage (hWnd, WM_CLOSE, 0, 0);
+						else
+							SetTimer (hWnd, IDT_GRACEFUL_TUNNELCHECK_TIMER, 1000, nullptr);
+						return 0;
+					}
 				}
 				break;
 			}
@@ -318,6 +372,12 @@ namespace win32
 				EndPaint(hWnd, &ps);
 				break;
 			}
+			default:
+			{
+				if (uMsg == s_uTaskbarRestart)
+					AddTrayIcon (hWnd);
+				break;
+			}
 		}
 		return DefWindowProc( hWnd, uMsg, wParam, lParam);
 	}

Win32/Win32Service.cpp

@@ -297,7 +297,8 @@ void InstallService(PCSTR pszServiceName, PCSTR pszDisplayName, DWORD dwStartTyp
 		FreeHandles(schSCManager, schService);
 		return;
 	}
-	strncat(szPath, " --daemon", MAX_PATH);
+	char SvcOpt[] = " --daemon";
+	strncat(szPath, SvcOpt, strlen(SvcOpt));
 
 	// Open the local default service control manager database
 	schSCManager = OpenSCManager(NULL, NULL, SC_MANAGER_CONNECT | SC_MANAGER_CREATE_SERVICE);

Win32/installer.iss

@@ -1,5 +1,5 @@
 #define I2Pd_AppName "i2pd"
-#define I2Pd_ver "2.23.0"
+#define I2Pd_ver "2.25.0"
 #define I2Pd_Publisher "PurpleI2P"
 
 [Setup]

android/.gitignore

@@ -12,7 +12,5 @@ local.properties
 build.sh
 android.iml
 build
-gradle
+
-gradlew
-gradlew.bat
 

android/AndroidManifest.xml

@@ -4,11 +4,11 @@
     android:installLocation="auto">
 
     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
-    <uses-permission android:name="android.permission.INTERNET" /> <!-- normal perm, per https://developer.android.com/guide/topics/permissions/normal-permissions.html -->
+    <uses-permission android:name="android.permission.INTERNET" />
     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
     <uses-permission android:name="android.permission.READ_PHONE_STATE" />
-    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" /> <!-- normal perm -->
+    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
-    <uses-permission android:name="android.permission.FOREGROUND_SERVICE" /> <!-- required in API 26+ -->
+    <uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
 
     <application
         android:allowBackup="true"
@@ -48,5 +48,4 @@
                 android:value="org.purplei2p.i2pd.I2PDPermsAskerActivity" />
         </activity>
     </application>
-
 </manifest>

android/assets/addressbook/addresses.csv

@@ -1,55 +1,42 @@
 00.i2p,zmzpltxslembpaupg3srh4bbhv5txgh5jmms6sfj4hzsvlv3xugq
+0ipfs.i2p,cdii3ou5mve5sfxyirs6kogt4tbvivk2d6o25awbcbazjrlhjeza
 0xcc.i2p,gawouxh2sg32cluwlqsnpy3dwedvoqtfroi4evvdvm2pfv7tdadq
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 102chan.i2p,xxu3lso4h2rh6wmrxiou3ax7r7la7x6dhoepnku3jvrlwp35pefq
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 archaicbinarybbs.i2p,t7o2tw36cffedgfr6kahewpkrntofnliuapji2e4rucl3os55epa
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 archiv.tutorials.i2p,lldr2miowq6353fxy44pnxfk37d6yn2f6kaivzecbmvvnnf5exyq
 archive.i2p,x54d5st3dl6mwgfxj6raiekqkypo5pdvuex3n62szwju7hgefiyq
 archive.syndie.i2p,abbyu5n3mh3nj7pe3b6byldrxswvva5ttxcafsnnseidanurq3kq
 ardor-wallet.i2p,tm23k5ny3umhf6vf3kghnnwacli5zywq5wrr3xcqowbcofuyr4gq
 ardvark.i2p,jcmw2sol3hruwc6rfinonx4e23pjkukkg7lg7xt7xb2gpiyyraiq
-arecords.i2p,pkp26u32ea6xrd4o53lzwm6pxzphu5heyrvyra37drfvn6vli7yq
 arf.i2p,o46lsq4u7udxg3qqlidrmpj4lb4nr7ldxmbb2x53nftndaeyxqeq
 arkan.i2p,7o5y2lyyrjx5tf6l4fyumywui7msjv5azaaheatvw5sqj7mxbuvq
-armada.i2p,26qxgmyqczulza5ym3jij5er3onclacejyqzecuhjllwun3kxuzq
 asciiwhite.i2p,itbzny5ktuenhjwjfqx3jravolhlj5wullhhr2m4qr6k2emnm5dq
 aspnet.i2p,tsb7zqru57p4q2a7cto2lko4w5cg4lieglwm6t27c44fkphqmf2a
 asylum.i2p,p45ejjw4p2q6nq3mzi6cm6ep35grtzshboidj2lojmrmic22noha
-atesi2p.i2p,hlahr4wgobvhegluufw3ckzulr4etamxxborktgz3dkefok232ga
 auchan.i2p,6vxz4yp3vhjwbkmxajj7wiikxafwujig63gkhjknbq6xh4rqpm5a
 aum.i2p,ohdfneqxapfd3fwfbum4tut7z6k3rnr7rrguoxdrrfe2tln2kpbq
 awup.i2p,v6g32duzrkacnrezfbll3pza5u37h7lnukr2wbsk6rqen6prhbga
@@ -58,11 +45,8 @@ bacardi.i2p,hivhnx2v47vh234c7coi2urj5cyvbl4bu3ypjr7snklortyqeljq
 backup.i2p,kepphem42whle3rkfv26wcksmnegdbg6rdp6t3oobdkc2fmzrdkq
 badfish.i2p,f6v26gyr4eipy3a7pi2voulw5qvob6dg7zij6xpo2ywbi5tvbu6a
 badtoyz.i2p,3qz6ubtwlt2c4iasofjirkckq43u5fgkzyg7mlutcsym5gzhijna
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 barry.i2p,4kyahq53ol52n23l44tefgeaxqpp3cbb632t5k3umdvqcooevdzq
 bash.i2p,s3wouoilbl3mrefxjhp4qoyujgok34e7y6vmpbu6hx4342ivqo4q
-bbs.i2p,7ubwrcixdcemzqwqzh2vaakjsnochj2biuzpo6dc2n4f7wqj4pua
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 bdl.i2p,kp6fnuulenbjm7r26pfbmjcq3u7c7kvxeajodvgr5flcnskdgi5a
 bdsm.i2p,pa7fxql5jljegg7j5tglhnnaod2sptq3gxvdn3ji6muqyhgn3poq
 betaguru.i2p,d7cduwwhrcc2voameqfkvd66u3advu4jw2p6pysgax35vq6ovriq
@@ -74,57 +58,43 @@ bitlox.i2p,lqw5khxcdntlv3u4vhn53upcqirplvnc4etjlmoytrzs66ytettq
 bittorrent.i2p,pgax2vz572i4zsp6u6paox5xubmjrkqohq6g4hvlp6ruzzy56l5q
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 bl.i2p,e73d6uhnfbylza6wqkhxejmqeyfb7thkzw35gn5ojmna64jzyk2a
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@@ -521,7 +443,6 @@ ogg.baffled.i2p,tfbvj2xal6lcuxv3hzuw7cw4g3whguombcv2zuotzvul4qtrimgq
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@@ -531,23 +452,18 @@ open4you.i2p,ice6ax5qrzwfwzsy64bctffj6zlzpuzdr5np65zsxlbt7hztyc6a
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@@ -561,7 +477,6 @@ pharos.i2p,vathk2pyvaskeie63yyg4tshjkx5xt6zfvhwhgr3de67q46ob3sa
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@@ -573,39 +488,31 @@ pomoyka.i2p,omt56v4jxa4hurbwk44vqbbcwn3eavuynyc24c25cy7grucjh24q
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@@ -621,8 +528,6 @@ rootd.i2p,mzbe5wofwn7eaqq4yefrmxizqaxoslwqxrv5qcv2opx5lnhg64dq
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@@ -630,22 +535,16 @@ ru.i2p,m7fqktjgtmsb3x7bvfrdx4tf7htnhytnz5qi2ujjcnph33u3hnja
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@@ -654,8 +553,6 @@ shiftfox.i2p,wpvnuzslu7hjy4gujvnphtyckchdoxccrlhbyomsmjizykczyseq
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@@ -665,8 +562,6 @@ slacker.i2p,wq7m2wdguzweleb666ygv3bmfhha63zj74rub76vfesbyhsyk6iq
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@@ -682,60 +577,38 @@ str4d.i2p,wrrwzdgsppwl2g2bdohhajz3dh45ui6u3y7yuop5ivvfzxtwnipa
 stream.i2p,prmbv3xm63ksoetnhbzqg4nzu2lhqdnqytgsydb7u3quxfrg7rna
 streams.darkrealm.i2p,ud3gcmvysjch4lbjr2khmhqpf7r2x5if4q43xkqdptl4k7lc4muq
 striker.i2p,4gswsrfpbd44hwjoj33jbqfbwzxfkwpuplb3ydq5zm7nfu2pxvdq
-studentbookshop.i2p,d2ejfxjt3n2nsj6hlkepwjgxua5jg766znrxz65d5eixsmiwvr3q
 subrosa.i2p,g3lnglrnoual7wyabnwwv37uwhadgbxiqz36pf3f5cwfuxsx4mxq
 subterra.i2p,vdmhe4u26unzgd7ysq6w36ubjncms5wzbhzr2gq576sq4xut5zwq
 sugadude.i2p,yzjn76iyqard64wgggfrnywkxi7tbfkw7mjhpviqz3p2dguey4yq
 suicidal.i2p,yfamynllow5xiqbbca7eh5xn733wtnuti5bi4ovc7dwycntqmiuq
-sun.i2p,33mt3psjrtauk6wzt35ke7w4bkyizesnsjlal45fbosja2j5i74q
 sungo.i2p,h67s3jw56rwfyoxqxj3fngrluybsgxc2meendngkehzqowxnpj3q
-super.i2p,2oopfqdsylutqnxstwq4ppafbk5cmrl3be7pid3orcia4bnoisfa
 surrender.adab.i2p,jgz7xglgfgnjfklrytyn427np2ubipztlm5bxrtbiucayglukrta
 susi.i2p,qc6g2qfi2ccw7vjwpst6rwuofgzbeoewsb2usv7rubutf4gzqveq
 syncline.i2p,5kcqmhislu3lmr7llgmdl72yu3efhyriljdc6wp774ftpwlcs5ra
 syndie-project.i2p,xa63tpfoaqt3zru2ehxjjfbpadwj4ha6qsdvtcqtyr3b7hmt4iaq
 syndie.echelon.i2p,vwrl2qmcif722fdkn3ldxcgz76df5cq4qypbndzthxwgmykyewta
 syndie.i2p,7lm3yzpuejhpl4tt4l7o4ndqlu7hgijohofh7oaydx7q7kelenbq
-syndie.tiny.i2p,lvxboy6ni52i7dwe4a54xe7uxz3dwhy66jaqcmn4q6yzdrrf2xya
-syndie2.tiny.i2p,5iov5rqup5ji6os3zpxvgzfztnbpfp3d7jh2xchwyx6dmykwdzua
 syndiemedia.i2p,4lrbbblclodhobn3jadt5bf2yab2pxzoz4ey4a2cvrl44tdv3jma
-t3chkommie.i2p,o5avgwuwjdyefw4xddn77jxaljs5gg3adg3gnpu26s2hijnrfvca
 tabak.i2p,y5o2vwb6kart7ivpnbpk4yte3i7kf2dsx7fy3i6w7htqtxhmbzia
 tahoeserve.i2p,yhs7tsjeznxdenmdho5gjmk755wtredfzipb5t272oi5otipfkoa
-talkfreedom.i2p,tbbikimv62ltdurcljry5fp3riokah3oi2dyksfa26e2pjugddwa
-tbofh.i2p,lmj2gu6d27pgrknbxxsyapjxnlprau4ayamcam6csljzlupr2rtq
 tc.i2p,qkv2yk6rof3rh7n3eelg5niujae6cmdzcpqbv3wsttedxtqqqj7a
 telegram.i2p,i6jow7hymogz2s42xq62gqgej2zdm4xtnmpc6vjcwktdxpdoupja
 templar.i2p,zxeralsujowfpyi2ynyjooxy222pzz4apc2qcwrfx5ikhf64et7q
-templeofmetal.i2p,cwtbmqx3cg7ae3jcrzgjzwcilpypnyz2biojrn4ca7ry5gukaixa
 terror.i2p,wsijm6aqz4qtuyn2jedpx6imar5uq4yuhjdgtfqumxbqww47vbnq
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 thebland.i2p,oiviukgwapzxsrwxsoucpqa47s3wt6nfuhfjxvgbqsyrze2mwrda
 thebreton.i2p,woutbsflcrlgppx4y7ag2kawlqijyenvlwrhbbvbkoaksuhf2hkq
-theclonedome.i2p,jyezrlobwwbhar2xbntf2d64yugcje6z2d3oxb5addyho72co2gq
 thedarkside.i2p,fxt3z33nzkrg5kjrk7bp5vvmu7w2vsn4i6jo6cily3hsm6u664ca
 theland.i2p,26ppxbseda6xmim37ksarccdb4q5ctdagfmt2u5aba6xjh452zsa
-thematrix.i2p,kgh3va66n5fqrtlhqsen2km6x7k2362hn5edk5o5q5dcr72nnajq
-therealprojectencrypt.i2p,vrdaftozwabkzy26adg77adhszpyil4xbswkogbituhkhsl7tlzq
 thetower.i2p,3xqa5nype64y6fxgqjq6r5w2qpiqftoraj2niebumseat4cj654a
-thisthingimade.i2p,bga2ae2ff3s5p2nskg2l37ns2ad6smczpvgjhm2olgxequogepja
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-thoughtfoundryblog.i2p,beoipfwqq5ebx2ywh2rcjwi7th5diaax23mvktppl4gk2pddrf5a
 tino.i2p,e4bfnhvaofu4s67ztcgiskos2mqyhskid64dvlqexxs2c2bno3iq
-tiny.i2p,elmeki5nvczhe4mnq6yb64wpocilkwacw2cshyvq2hrvkhbivqya
-tinyslibrary.i2p,nv5ysd44xz6dgc6y3hxe22tfonmcikegm76l633oqfuyfo26odva
 tinyurl.i2p,mc4oxv3v7dnyzpvok7v5qxkwtgjprgyz6w7x3tag4fipsen6rdwa
-tipped8.i2p,5l2mzforxf5kok7ndc6m53nfxve75m5tozb37m6eg2xsaf6hdlmq
 tome.i2p,qktkxwawgixrm5lzofnj5n24zspbnzxy4pvjm7uvaxvmgwrsuvgq
-tooman.i2p,auo7cuq4dovgniwojq5fbwyjuvmks3zv7aopu5f6onsckuihsdpa
-top4ek.i2p,hm3fpmxchlvqc3p4atnu7igwbenqpn7f3czbptnnqataemputl4q
 tor-gw.meeh.i2p,ounrqi7cfemnt66yhnhigt2u27fkctbvct527cp2522ozy3btjza
 tor-www-proxy.i2p,xov45rvjks5fe4ofmpblkj23bnwxgslbypbgvchbr7yul2ujej2q
 torapa.i2p,eejqjtpko6mdd4opvntbpsuandstrebxpbymfhix7avp5obrw5ta
-tordox.i2p,3wv6wn3h5tr57evns5bgf2rbwivai7zhajlgt5fr3blxvp6bybbq
 torrentfinder.i2p,mpc73okj7wq2xl6clofl64cn6v7vrvhpmi6d524nrsvbeuvjxalq
 torrfreedom.i2p,nfrjvknwcw47itotkzmk6mdlxmxfxsxhbhlr5ozhlsuavcogv4hq
-tourist-destinations.i2p,s4lyjsubxnlw5zytyvq2v2lroscuqwoxu3ukrg3akh6tybm25qfa
 trac.i2p,kyioa2lgdi2za2fwfwajnb3ljz6zwlx7yzjdpnxnch5uw3iqn6ca
 trac.i2p2.i2p,i43xzkihpdq34f2jlmtgiyyay5quafg5rebog7tk7xil2c6kbyoa
 tracker-fr.i2p,qfrvqrfoqkistgzo2oxpfduz4ktkhtqopleozs3emblmm36fepea
@@ -753,17 +626,15 @@ tracker2.postman.i2p,ahsplxkbhemefwvvml7qovzl5a2b5xo5i7lyai7ntdunvcyfdtna
 traditio.i2p,wkpjjloylf6jopu2itgpktr45t2xvpjijxilxd5tq4i7wkqgwhhq
 trevorreznik.i2p,wc2z6o5fxm2saqzpfcawr63lejwccvzkysmgtfudkrigqopzfdma
 true.i2p,pdilhl5vmefyzrrnmak5bnmxqxk2pmw7rpy4f7wbaeppqu2vvugq
-trumpusa.i2p,vopyffqj3il2uapcvfxq2zkcdybf7ekmpvnrt6d4dbeuecbvs2ea
 trwcln.i2p,evml6jiiujhulsgxkdu3wcmkwbokxlv4is6w5qj46tp3ajz3hqzq
+trypanom.i2p,tgv5acj4khwvr6t44cmryohybd2e5o2kndysnzae6qwcr4hzda3q
 ts.i2p,nebcjgfx3f7q4wzihqmguwcdeopaf7f6wyk2dojw4bcuku472zxq
 ttc.i2p,wb4tsfyvfv4idgrultsq6o7inza4fxkc7dijsfpncbx7zko4cdlq
 ttp.i2p,uuczclxejmetohwf2vqewovx3qcumdfh5zecjb3xkcdmk6e5j72a
 tumbach.i2p,u6pciacxnpbsq7nwc3tgutywochfd6aysgayijr7jxzoysgxklvq
 tutorials.i2p,zy37tq6ynucp3ufoyeegswqjaeofmj57cpm5ecd7nbanh2h6f2ja
-ubuntudvm.i2p,wpsw5eon3ecsys5pe4whbbetga6znznmiiwwynhp37qdlxxcqwca
 ugha.i2p,z3f3owc72awbywk4p6qb5l2mxgitvs6ejztggbpn2a3ddmymfjda
 uk.i2p,vydbychnep3mzkzhg43ptewp242issy47whamfbxodc4ma6wc63a
-ukiyo.i2p,ytd3loo226pogdcx3ajdtew6vl5rsidppqzh6phbo5vlmigdxclq
 underground.i2p,dlnuthb6tpw3kchlb7xoztyspy4ehlggjhl44l64vbcrulrfeica
 underscore.i2p,3gmezyig6gvsjbpkq2kihoskpuqpkfrajmhhm7hpyrjuvtasgepa
 unqueued.i2p,3gvn4kwd7z74jxc2sn4ucx52dpvpscxbzjluux3ul4t3eu5g64xq
@@ -777,14 +648,13 @@ vadino.i2p,aalttzlt3z25ktokesceweabm5yyhhvml2z3rfotndgpfyh6myra
 visibility.i2p,pwgma3snbsgkddxgb54mrxxkt3l4jzchrtp52vxmw7rbkjygylxq
 volatile.i2p,q6rve733tvhgyys57jfw4fymqf3xsnza6dqailcdjcq7w4fa5m3a
 vpnbest.i2p,ov5f74ndsy5rfkuyps56waf42vxncufqu5rzm3vsnxkdtogccaea
+vudu.i2p,3zlwci7pvgep2igygzyjej24ue7mjsktlhaff6crpsr75yquak2q
 w.i2p,j2xorlcb3qxubnthzqu7lt4fvxqn63it4ikwmze55yjkzeeampuq
 wa11ed.city.i2p,7mxwtmala3ycg2sybjwwfil7s6dqck2fbemeutghhwu73rznmqoa
 wahoo.i2p,vqe5vkpe5wbda7lwekcd2jaj44ar3rawgv54u5rcolezbg5f5vwa
 wallet.gostcoin.i2p,reuvum7lgetglafn72chypesvto773oy53zumagrpigkckybrwda
 wallsgetbombed.i2p,tzhea5d65fllm4263wztghgw4ijdgibsca5xsecp6lk4xlsbdeuq
 web.telegram.i2p,re6cgwg2yrkgaixlqvt5ufajbb3w42fsldlq7k5brpvnd5gp6x5a
-webviewer.aktie.i2p,gvofjbuvkl65f2npmyyig6wmi4ryvzdyli2pj4ufu56vtabc5pmq
-whoopboo.i2p,7i4err7ik6r5sno33sfmanmu4x7tsbqc6a7dmg3ijel57zhoosma
 wiht.i2p,yojmpj3sh76g3i6ogzgsf7eouipdgdij5o2blcpdgmu5oyjk5xca
 wiki.fr.i2p,lrqa7hw52uxjb5q3pedmjs6hzos5zrod4y6a4e25hu7vcjhohvxq
 wiki.ilita.i2p,r233yskmowqe4od4he4b37wydr5fqzvj3z77v5fdei2etp2kg34a
@@ -811,8 +681,6 @@ xmpp.rpi.i2p,3yv65pfwiwfuv4ciwtx34clqps6o2mc3vtyltcbqdkcki6untbca
 xn--l2bl5aw.i2p,d2epikjh5crt2l5xjmtceqw2ho44hzp6x3u7hgjrd4mi4wywikwa
 xolotl.i2p,rwr6rrlmrotxfkxt22mah42cycliy2g5k7hgxyxkpcyyxkd2bgwq
 xotc.i2p,gqgvzum3xdgtaahkjfw3layb33vjrucmw5btyhrppm463cz3c5oq
-xpyxpy.i2p,vwzdbqs7p4z5i6zob4gqrl7kejnkaxfo7haabowdq6tjqwltatuq
-yottabyte.i2p,zsdqh2ozauksuyeiaqypgcxus5ldmxgxxgz4yp76pglrjxzzu2ra
 z-lab.i2p,s6g2pz3mrwzsl4ts65ox3scqawfj7mzvd7hn2ekiiycawopkriba
 zab.i2p,n4xen5sohufgjhv327ex4qra77f4tpqohlcyoa3atoboknzqazeq
 zcash.i2p,zcashmliuw3yd2ptfyd5sadatcpyxj4ldiqahtjzg73cgoevxp4q
@@ -820,5 +688,6 @@ zener.i2p,mcbyglflte3dhwhqyafsfpnqtcapqkv2sepqd62wzd7fo2dzz4ca
 zerobin.i2p,3564erslxzaoucqasxsjerk4jz2xril7j2cbzd4p7flpb4ut67hq
 zeroman.i2p,gq77fmto535koofcd53f6yzcc5y57ccrxg3pb6twhcodc7v5dutq
 zeronet.i2p,fe6pk5sibhkr64veqxkfochdfptehyxrrbs3edwjs5ckjbjn4bna
+znc.i2p,uw2yt6njjl676fupd72hiezwmd4ouuywowrph6fvhkzhlnvp7jwa
 znc.str4d.i2p,ufkajv3stxpxlwgwwb2ae6oixdjircnbwog77qxpxv7nt67rpcxq
 zzz.i2p,ukeu3k5oycgaauneqgtnvselmt4yemvoilkln7jpvamvfx7dnkdq

android/build.gradle

@@ -2,9 +2,10 @@ buildscript {
     repositories {
         mavenCentral()
         jcenter()
+        google()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.3.3'
+        classpath 'com.android.tools.build:gradle:3.3.2'
     }
 }
 
@@ -18,18 +19,18 @@ repositories {
 }
 
 dependencies {
-    compile 'com.android.support:support-compat:28.0.0'
+    implementation 'com.android.support:support-compat:28.0.0'
 }
 
 android {
     compileSdkVersion 28
-    buildToolsVersion "28.0.1"
+    buildToolsVersion "28.0.3"
     defaultConfig {
         applicationId "org.purplei2p.i2pd"
         targetSdkVersion 28
         minSdkVersion 14
-        versionCode 2230
+        versionCode 2250
-        versionName "2.23.0"
+        versionName "2.25.0"
         ndk {
             abiFilters 'armeabi-v7a'
             abiFilters 'x86'

android/gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,6 @@
+#Thu Mar 14 18:21:08 MSK 2019
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.10.1-all.zip

android/gradlew

@@ -0,0 +1,172 @@
+#!/usr/bin/env sh
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn () {
+    echo "$*"
+}
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+  NONSTOP* )
+    nonstop=true
+    ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+    JAVACMD=`cygpath --unix "$JAVACMD"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Escape application args
+save () {
+    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
+    echo " "
+}
+APP_ARGS=$(save "$@")
+
+# Collect all arguments for the java command, following the shell quoting and substitution rules
+eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
+
+# by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong
+if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then
+  cd "$(dirname "$0")"
+fi
+
+exec "$JAVACMD" "$@"

android/gradlew.bat

@@ -0,0 +1,84 @@
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windows variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega

android/jni/DaemonAndroid.cpp

@@ -65,6 +65,8 @@ namespace android
 		}
 	}
 */
+	std::string dataDir = "";
+
 	DaemonAndroidImpl::DaemonAndroidImpl ()
 		//:
 		/*mutex(nullptr), */
@@ -85,7 +87,7 @@ namespace android
 		//m_IsRunning=false;
 
 		// make sure assets are ready before proceed
-		i2p::fs::DetectDataDir("", false);
+		i2p::fs::DetectDataDir(dataDir, false);
 		int numAttempts = 0;
 		do
 		{
@@ -203,5 +205,10 @@ namespace android
 	{
 		daemon.stop();
 	}
+
+	void SetDataDir(std::string jdataDir)
+	{
+		dataDir = jdataDir;
+	}
 }
 }

android/jni/DaemonAndroid.h

@@ -42,6 +42,8 @@ namespace android
 	// stops the daemon
 	void stop();
 
+	// set datadir received from jni
+	void SetDataDir(std::string jdataDir);
 	/*
 	class Worker : public QObject
 	{

android/jni/i2pd_android.cpp

@@ -66,3 +66,29 @@ JNIEXPORT void JNICALL Java_org_purplei2p_i2pd_I2PD_1JNI_onNetworkStateChanged
 	bool isConnectedBool = (bool) isConnected;
 	i2p::transport::transports.SetOnline (isConnectedBool);
 }
+
+JNIEXPORT void JNICALL Java_org_purplei2p_i2pd_I2PD_1JNI_setDataDir
+	(JNIEnv *env, jclass clazz, jstring jdataDir) {
+
+	/*
+	// Method 1: convert UTF-16 jstring to std::string (https://stackoverflow.com/a/41820336)
+	const jclass stringClass = env->GetObjectClass(jdataDir);
+	const jmethodID getBytes = env->GetMethodID(stringClass, "getBytes", "(Ljava/lang/String;)[B");
+	const jbyteArray stringJbytes = (jbyteArray) env->CallObjectMethod(jdataDir, getBytes, env->NewStringUTF("UTF-8"));
+
+	size_t length = (size_t) env->GetArrayLength(stringJbytes);
+	jbyte* pBytes = env->GetByteArrayElements(stringJbytes, NULL);
+
+	std::string dataDir = std::string((char *)pBytes, length);
+	env->ReleaseByteArrayElements(stringJbytes, pBytes, JNI_ABORT);
+
+	env->DeleteLocalRef(stringJbytes);
+	env->DeleteLocalRef(stringClass); */
+
+	// Method 2: get string chars and make char array.
+	auto dataDir = env->GetStringUTFChars(jdataDir, NULL);
+	env->ReleaseStringUTFChars(jdataDir, dataDir);
+
+	// Set DataDir
+	i2p::android::SetDataDir(dataDir);
+}

android/jni/org_purplei2p_i2pd_I2PD_JNI.h

@@ -30,6 +30,9 @@ JNIEXPORT void JNICALL Java_org_purplei2p_i2pd_I2PD_1JNI_startAcceptingTunnels
 JNIEXPORT void JNICALL Java_org_purplei2p_i2pd_I2PD_1JNI_onNetworkStateChanged
 	(JNIEnv * env, jclass clazz, jboolean isConnected);
 
+JNIEXPORT void JNICALL Java_org_purplei2p_i2pd_I2PD_1JNI_setDataDir
+	(JNIEnv *env, jclass clazz, jstring jdataDir);
+
 #ifdef __cplusplus
 }
 #endif

android/res/values-ru/strings.xml

@@ -16,4 +16,5 @@
     <string name="stopped">Приложение было остановлено</string>
     <string name="remaining">осталось</string>
     <string name="title_activity_i2_pdperms_asker_prompt">Запрос</string>
+    <string name="permDenied">Права для записи на SD карту отклонены, вам необходимо предоставить их для продолжения</string>
 </resources>

android/res/values/strings.xml

@@ -16,4 +16,5 @@
     <string name="stopped">Application stopped</string>
     <string name="remaining">remaining</string>
     <string name="title_activity_i2_pdperms_asker_prompt">Prompt</string>
+    <string name="permDenied">SD card write permission denied, you need to allow this to continue</string>
 </resources>

android/src/org/purplei2p/i2pd/DaemonSingleton.java

@@ -2,7 +2,9 @@ package org.purplei2p.i2pd;
 
 import java.util.HashSet;
 import java.util.Set;
+import android.os.Environment;
 import android.util.Log;
+
 import org.purplei2p.i2pd.R;
 
 public class DaemonSingleton {
@@ -11,9 +13,7 @@ public class DaemonSingleton {
 	public interface StateUpdateListener { void daemonStateUpdate(); }
 	private final Set<StateUpdateListener> stateUpdateListeners = new HashSet<>();
 
-	public static DaemonSingleton getInstance() {
+	public static DaemonSingleton getInstance() { return instance; }
-		return instance;
-	}
 
 	public synchronized void addStateChangeListener(StateUpdateListener listener) { stateUpdateListeners.add(listener); }
 	public synchronized void removeStateChangeListener(StateUpdateListener listener) { stateUpdateListeners.remove(listener); }
@@ -82,6 +82,7 @@ public class DaemonSingleton {
 				}
 				try {
 					synchronized (DaemonSingleton.this) {
+						I2PD_JNI.setDataDir(Environment.getExternalStorageDirectory().getAbsolutePath() + "/i2pd");
 						daemonStartResult = I2PD_JNI.startDaemon();
 						if("ok".equals(daemonStartResult)){
 							setState(State.startedOkay);
@@ -91,7 +92,6 @@ public class DaemonSingleton {
 				} catch (Throwable tr) {
 					lastThrowable=tr;
 					setState(State.startFailed);
-					return;
 				}
 			}
 

android/src/org/purplei2p/i2pd/ForegroundService.java

@@ -1,5 +1,6 @@
 package org.purplei2p.i2pd;
 
+import android.annotation.TargetApi;
 import android.app.Notification;
 import android.app.NotificationChannel;
 import android.app.NotificationManager;

android/src/org/purplei2p/i2pd/I2PDPermsAskerActivity.java

@@ -119,11 +119,10 @@ public class I2PDPermsAskerActivity extends Activity {
 
 					// permission denied, boo! Disable the
 					// functionality that depends on this permission.
-					textview_retry.setText("SD card write permission denied, you need to allow this to continue");
+					textview_retry.setText(R.string.permDenied);
 					textview_retry.setVisibility(TextView.VISIBLE);
 					button_request_write_ext_storage_perms.setVisibility(Button.VISIBLE);
 				}
-				return;
 			}
 
 			// other 'case' lines to check for other

android/src/org/purplei2p/i2pd/I2PD_JNI.java

@@ -18,6 +18,8 @@ public class I2PD_JNI {
 
 	public static native void onNetworkStateChanged(boolean isConnected);
 
+	public static native void setDataDir(String jdataDir);
+
 	public static void loadLibraries() {
 		//System.loadLibrary("c++_shared");
 		System.loadLibrary("i2pd");

android_binary_only/jni/Application.mk

@@ -1,8 +1,8 @@
-#APP_ABI := all
+APP_ABI := all
-#APP_ABI := armeabi-v7a x86
+#APP_ABI += x86
-#APP_ABI := x86
+#APP_ABI += x86_64
-#APP_ABI := x86_64
+#APP_ABI += armeabi-v7a
-APP_ABI := armeabi-v7a
+#APP_ABI += arm64-v8a
 #can be android-3 but will fail for x86 since arch-x86 is not present at ndkroot/platforms/android-3/ . libz is taken from there.
 APP_PLATFORM := android-14
 

appveyor.yml

@@ -1,4 +1,4 @@
-version: 2.23.0.{build}
+version: 2.25.0.{build}
 pull_requests:
   do_not_increment_build_number: true
 branches:

contrib/android_binary_pack/.gitignore

@@ -0,0 +1,2 @@
+archive
+i2pd_*_android_binary.zip

contrib/android_binary_pack/build-archive

@@ -0,0 +1,45 @@
+#!/bin/bash
+
+# Copyright (c) 2013-2017, The PurpleI2P Project
+#
+# This file is part of Purple i2pd project and licensed under BSD3
+#
+# See full license text in LICENSE file at top of project tree
+
+GITDESC=$(git describe --tags)
+
+declare -A ABILIST=(
+	["armeabi-v7a"]="armv7l"
+	["arm64-v8a"]="aarch64"
+	["x86"]="x86"
+	["x86_64"]="x86_64"
+)
+
+# Remove old files and archives
+if [ -d archive ]; then
+	rm -r archive
+fi
+
+if [ -f i2pd_*_android_binary.zip ]; then
+	rm i2pd_*_android_binary.zip
+fi
+
+# Prepare files for package
+mkdir archive
+
+for ABI in "${!ABILIST[@]}"; do
+	if [ -f ../../android_binary_only/libs/${ABI}/i2pd ]; then
+		cp ../../android_binary_only/libs/${ABI}/i2pd archive/i2pd-${ABILIST[$ABI]}
+	fi
+done
+
+cp i2pd archive/i2pd
+cp -rH ../../android/assets/* archive/
+
+# Compress files
+cd archive
+zip -r6 ../i2pd_${GITDESC}_android_binary.zip .
+
+# Remove temporary folder
+cd ..
+rm -r archive

contrib/android_binary_pack/i2pd

@@ -0,0 +1,33 @@
+#!/bin/sh
+
+# Copyright (c) 2013-2019, The PurpleI2P Project
+#
+# This file is part of Purple i2pd project and licensed under BSD3
+#
+# See full license text in LICENSE file at top of project tree
+#
+# That script written for use with Termux.
+
+# https://stackoverflow.com/a/246128
+SOURCE="${0}"
+while [ -h "$SOURCE" ]; do # resolve $SOURCE until the file is no longer a symlink
+  DIR="$( cd -P "$( dirname "$SOURCE" )" >/dev/null 2>&1 && pwd )"
+  SOURCE="$(readlink "$SOURCE")"
+  [[ $SOURCE != /* ]] && SOURCE="$DIR/$SOURCE" # if $SOURCE was a relative symlink, we need to resolve it relative to the path where the symlink file was located
+done
+DIR="$( cd -P "$( dirname "$SOURCE" )" >/dev/null 2>&1 && pwd )"
+
+arch=$(uname -m)
+
+screenfind=$(which screen)
+if [ -z $screenfind ]; then
+	echo "Can't find 'screen' installed. That script needs it!";
+	exit 1;
+fi
+
+if [ -z i2pd-$arch ]; then
+	echo "Can't find i2pd binary for your archtecture.";
+	exit 1;
+fi
+
+screen -AmdS i2pd ./i2pd-$arch --datadir=$DIR

contrib/docker/Dockerfile

@@ -24,7 +24,7 @@ RUN mkdir -p "$I2PD_HOME" "$DATA_DIR" \
 # 1. install deps, clone and build.
 # 2. strip binaries.
 # 3. Purge all dependencies and other unrelated packages, including build directory.
-RUN apk --no-cache --virtual build-dependendencies add make gcc g++ libtool boost-dev build-base openssl-dev openssl git \
+RUN apk --no-cache --virtual build-dependendencies add make gcc g++ libtool zlib-dev boost-dev build-base openssl-dev openssl git \
     && mkdir -p /tmp/build \
     && cd /tmp/build && git clone -b ${GIT_BRANCH} ${REPO_URL} \
     && cd i2pd \

contrib/rpm/i2pd-git.spec

@@ -1,7 +1,7 @@
 %define git_hash %(git rev-parse HEAD | cut -c -7)
 
 Name:           i2pd-git
-Version:        2.23.0
+Version:        2.25.0
 Release:        git%{git_hash}%{?dist}
 Summary:        I2P router written in C++
 Conflicts:      i2pd
@@ -47,8 +47,13 @@ cd build
     -DWITH_LIBRARY=OFF \
     -DWITH_UPNP=ON \
     -DWITH_HARDENING=ON \
+%if 0%{?fedora} > 29
+    -DBUILD_SHARED_LIBS:BOOL=OFF \
+    .
+%else
     -DBUILD_SHARED_LIBS:BOOL=OFF
 %endif
+%endif
 
 make %{?_smp_mflags}
 
@@ -105,6 +110,12 @@ getent passwd i2pd >/dev/null || \
 
 
 %changelog
+* Thu May 9 2019 orignal <i2porignal@yandex.ru> - 2.25.0
+- update to 2.25.0
+
+* Thu Mar 21 2019 orignal <i2porignal@yandex.ru> - 2.24.0
+- update to 2.24.0
+
 * Mon Jan 21 2019 orignal <i2porignal@yandex.ru> - 2.23.0
 - update to 2.23.0
 

contrib/rpm/i2pd.spec

@@ -1,5 +1,5 @@
 Name:           i2pd
-Version:        2.23.0
+Version:        2.25.0
 Release:        1%{?dist}
 Summary:        I2P router written in C++
 Conflicts:      i2pd-git
@@ -45,8 +45,13 @@ cd build
     -DWITH_LIBRARY=OFF \
     -DWITH_UPNP=ON \
     -DWITH_HARDENING=ON \
+%if 0%{?fedora} > 29
+    -DBUILD_SHARED_LIBS:BOOL=OFF \
+    .
+%else
     -DBUILD_SHARED_LIBS:BOOL=OFF
 %endif
+%endif
 
 make %{?_smp_mflags}
 
@@ -103,6 +108,12 @@ getent passwd i2pd >/dev/null || \
 
 
 %changelog
+* Thu May 9 2019 orignal <i2porignal@yandex.ru> - 2.25.0
+- update to 2.25.0
+
+* Thu Mar 21 2019 orignal <i2porignal@yandex.ru> - 2.24.0
+- update to 2.24.0
+
 * Mon Jan 21 2019 orignal <i2porignal@yandex.ru> - 2.23.0
 - update to 2.23.0
 

daemon/Daemon.cpp

@@ -154,14 +154,24 @@ namespace i2p
 			i2p::context.SetSupportsV6		 (ipv6);
 			i2p::context.SetSupportsV4		 (ipv4);
 
+			bool ntcp;   i2p::config::GetOption("ntcp", ntcp);
+			i2p::context.PublishNTCPAddress (ntcp, !ipv6);  
 			bool ntcp2; i2p::config::GetOption("ntcp2.enabled", ntcp2);
 			if (ntcp2)
 			{
 				bool published; i2p::config::GetOption("ntcp2.published", published);
 				if (published)
 				{
-					uint16_t port; i2p::config::GetOption("ntcp2.port", port);
+					uint16_t ntcp2port; i2p::config::GetOption("ntcp2.port", ntcp2port);
-					i2p::context.PublishNTCP2Address (port, true); // publish
+					if (!ntcp && !ntcp2port) ntcp2port = port; // use standard port
+					i2p::context.PublishNTCP2Address (ntcp2port, true); // publish
+					if (ipv6)
+					{
+						std::string ipv6Addr; i2p::config::GetOption("ntcp2.addressv6", ipv6Addr);
+						auto addr = boost::asio::ip::address_v6::from_string (ipv6Addr);
+						if (!addr.is_unspecified () && addr != boost::asio::ip::address_v6::any ())
+							i2p::context.UpdateNTCP2V6Address (addr); // set ipv6 address if configured
+					}
 				}
 				else
 					i2p::context.PublishNTCP2Address (port, false); // unpublish
@@ -256,7 +266,7 @@ namespace i2p
 						pos = comma + 1;
 					}
 					while (comma != std::string::npos);
-					LogPrint(eLogInfo, "Daemon: setting restricted routes to use ", idents.size(), " trusted routesrs");
+					LogPrint(eLogInfo, "Daemon: setting restricted routes to use ", idents.size(), " trusted routers");
 					i2p::transport::transports.RestrictRoutesToRouters(idents);
 					restricted = idents.size() > 0;
 				}

daemon/HTTPServer.cpp

@@ -358,7 +358,7 @@ namespace http {
 		{
 			s << "<div class='slide'><label for='slide-lease'><b>LeaseSets:</b> <i>" << dest->GetNumRemoteLeaseSets () << "</i></label>\r\n<input type='checkbox' id='slide-lease'/>\r\n<p class='content'>\r\n";
 			for(auto& it: dest->GetLeaseSets ())
-				s << it.second->GetIdentHash ().ToBase32 () << " " << (int)it.second->GetStoreType () << "<br>\r\n";
+				s << it.first.ToBase32 () << " " << (int)it.second->GetStoreType () << "<br>\r\n";
 			s << "</p>\r\n</div>\r\n";
 		} else
 			s << "<b>LeaseSets:</b> <i>0</i><br>\r\n";
@@ -798,8 +798,7 @@ namespace http {
 	}
 
 	HTTPConnection::HTTPConnection (std::string hostname, std::shared_ptr<boost::asio::ip::tcp::socket> socket):
-		m_Socket (socket), m_Timer (socket->get_io_service ()), m_BufferLen (0),
+		m_Socket (socket), m_BufferLen (0), expected_host(hostname)
-		expected_host(hostname)
 	{
 		/* cache options */
 		i2p::config::GetOption("http.auth", needAuth);

daemon/HTTPServer.h

@@ -39,7 +39,6 @@ namespace http
 		private:
 
 			std::shared_ptr<boost::asio::ip::tcp::socket> m_Socket;
-			boost::asio::deadline_timer m_Timer;
 			char m_Buffer[HTTP_CONNECTION_BUFFER_SIZE + 1];
 			size_t m_BufferLen;
 			std::string m_SendBuffer;

debian/changelog

@@ -1,3 +1,15 @@
+i2pd (2.25.0-1) unstable; urgency=medium
+
+  * updated to version 2.25.0/0.9.40
+
+ -- orignal <orignal@i2pmail.org>  Thu, 9 May 2019 16:00:00 +0000
+
+i2pd (2.24.0-1) unstable; urgency=medium
+
+  * updated to version 2.24.0/0.9.39
+
+ -- orignal <orignal@i2pmail.org>  Thu, 21 Mar 2019 16:00:00 +0000
+
 i2pd (2.23.0-1) unstable; urgency=medium
 
   * updated to version 2.23.0/0.9.38

libi2pd/ChaCha20.cpp

@@ -9,6 +9,7 @@
 *
 */
 
+#include "I2PEndian.h"
 #include "ChaCha20.h"
 
 #if !OPENSSL_AEAD_CHACHA20_POLY1305 
@@ -89,14 +90,14 @@ void Chacha20Init (Chacha20State& state, const uint8_t * nonce, const uint8_t *
 	for (size_t i = 0; i < 8; i++) 
 	    state.data[4 + i] = chacha::u8t32le(key + i * 4);
 	
-	state.data[12] = counter;
+	state.data[12] = htole32 (counter);
 	for (size_t i = 0; i < 3; i++) 
 	    state.data[13 + i] = chacha::u8t32le(nonce + i * 4);
 }
 
 void Chacha20SetCounter (Chacha20State& state, uint32_t counter)
 {
-	state.data[12] = counter;
+	state.data[12] = htole32 (counter);
 	state.offset = 0;
 }	
 

libi2pd/Config.cpp

@@ -73,7 +73,7 @@ namespace config {
 			("limits.coresize", value<uint32_t>()->default_value(0),          "Maximum size of corefile in Kb (0 - use system limit)")
 			("limits.openfiles", value<uint16_t>()->default_value(0),         "Maximum number of open files (0 - use system default)")
 			("limits.transittunnels", value<uint16_t>()->default_value(2500), "Maximum active transit sessions (default:2500)")
-			("limits.ntcpsoft", value<uint16_t>()->default_value(0),          "Threshold to start probabalistic backoff with ntcp sessions (default: use system limit)")
+			("limits.ntcpsoft", value<uint16_t>()->default_value(0),          "Threshold to start probabilistic backoff with ntcp sessions (default: use system limit)")
 			("limits.ntcphard", value<uint16_t>()->default_value(0),          "Maximum number of ntcp sessions (default: use system limit)")
 			("limits.ntcpthreads", value<uint16_t>()->default_value(1),       "Maximum number of threads used by NTCP DH worker (default: 1)")
 		;
@@ -153,8 +153,8 @@ namespace config {
 			("i2pcontrol.address", value<std::string>()->default_value("127.0.0.1"),       "I2PCP listen address")
 			("i2pcontrol.port", value<uint16_t>()->default_value(7650),                    "I2PCP listen port")
 			("i2pcontrol.password", value<std::string>()->default_value("itoopie"),        "I2PCP access password")
-			("i2pcontrol.cert", value<std::string>()->default_value("i2pcontrol.crt.pem"), "I2PCP connection cerificate")
+			("i2pcontrol.cert", value<std::string>()->default_value("i2pcontrol.crt.pem"), "I2PCP connection certificate")
-			("i2pcontrol.key", value<std::string>()->default_value("i2pcontrol.key.pem"),  "I2PCP connection cerificate key")
+			("i2pcontrol.key", value<std::string>()->default_value("i2pcontrol.key.pem"),  "I2PCP connection certificate key")
 		;
 
 		bool upnp_default = false;
@@ -164,7 +164,7 @@ namespace config {
 		options_description upnp("UPnP options");
 		upnp.add_options()
 			("upnp.enabled", value<bool>()->default_value(upnp_default), "Enable or disable UPnP: automatic port forwarding")
-			("upnp.name", value<std::string>()->default_value("I2Pd"),   "Name i2pd appears in UPnP forwardings list")
+			("upnp.name", value<std::string>()->default_value("I2Pd"),   "Name i2pd appears in UPnP forwarding list")
 		;
 
 		options_description precomputation("Precomputation options");
@@ -239,6 +239,7 @@ namespace config {
 			("ntcp2.enabled", value<bool>()->default_value(true), "Enable NTCP2 (default: enabled)")
 			("ntcp2.published", value<bool>()->default_value(false), "Publish NTCP2 (default: disabled)")
 			("ntcp2.port", value<uint16_t>()->default_value(0), "Port to listen for incoming NTCP2 connections (default: auto)")
+			("ntcp2.addressv6", value<std::string>()->default_value("::"), "Address to bind NTCP2 on")
 		;
 
 		options_description nettime("Time sync options");
@@ -256,6 +257,7 @@ namespace config {
 		options_description persist("Network information persisting options");
 		persist.add_options()
 			("persist.profiles", value<bool>()->default_value(true), "Persist peer profiles (default: true)")
+			("persist.addressbook", value<bool>()->default_value(true), "Persist full addresses (default: true)")
 		;
 
 		m_OptionsDesc

libi2pd/Config.h

@@ -32,12 +32,12 @@ namespace config {
    * @param  argc  Cmdline arguments count, should be passed from main().
    * @param  argv  Cmdline parameters array, should be passed from main()
    *
-   * If --help is given in parameters, shows it's list with description
+   * If --help is given in parameters, shows its list with description
-   * terminates the program with exitcode 0.
+   * and terminates the program with exitcode 0.
    *
    * In case of parameter misuse boost throws an exception.
    * We internally handle type boost::program_options::unknown_option,
-   * and then terminate program with exitcode 1.
+   * and then terminate the program with exitcode 1.
    *
    * Other exceptions will be passed to higher level.
    */
@@ -107,7 +107,7 @@ namespace config {
   /**
    * @brief  Check is value explicitly given or default
    * @param  name  Name of checked parameter
-   * @return true if value set to default, false othervise
+   * @return true if value set to default, false otherwise
    */
   bool IsDefault(const char *name);
 }

libi2pd/Crypto.cpp

@@ -8,11 +8,14 @@
 #include <openssl/crypto.h>
 #include "TunnelBase.h"
 #include <openssl/ssl.h>
-#include "Crypto.h"
+#if OPENSSL_HKDF
+#include <openssl/kdf.h>
+#endif
 #if !OPENSSL_AEAD_CHACHA20_POLY1305
 #include "ChaCha20.h"
 #include "Poly1305.h"
 #endif
+#include "Crypto.h"
 #include "Ed25519.h"
 #include "I2PEndian.h"
 #include "Log.h"
@@ -1228,6 +1231,49 @@ namespace crypto
 #endif		
 	}
 
+	void ChaCha20 (const uint8_t * msg, size_t msgLen, const uint8_t * key, const uint8_t * nonce, uint8_t * out)
+	{
+#if OPENSSL_AEAD_CHACHA20_POLY1305
+		EVP_CIPHER_CTX *ctx = EVP_CIPHER_CTX_new ();
+		uint32_t iv[4];
+		iv[0] = htole32 (1); memcpy (iv + 1, nonce, 12); // counter | nonce
+		EVP_EncryptInit_ex(ctx, EVP_chacha20 (), NULL, key, (const uint8_t *)iv);
+		int outlen = 0;
+		EVP_EncryptUpdate(ctx, out, &outlen, msg, msgLen);
+		EVP_EncryptFinal_ex(ctx, NULL, &outlen);
+		EVP_CIPHER_CTX_free (ctx);
+#else
+		chacha::Chacha20State state;
+		chacha::Chacha20Init (state, nonce, key, 1);	
+		if (out != msg) memcpy (out, msg, msgLen);
+		chacha::Chacha20Encrypt (state, out, msgLen);
+#endif
+	}
+
+	void HKDF (const uint8_t * salt, const uint8_t * key, size_t keyLen, const std::string& info, uint8_t * out)
+	{
+#if OPENSSL_HKDF
+		EVP_PKEY_CTX * pctx = EVP_PKEY_CTX_new_id (EVP_PKEY_HKDF, NULL);
+		EVP_PKEY_derive_init (pctx);
+		EVP_PKEY_CTX_set_hkdf_md (pctx, EVP_sha256());
+		EVP_PKEY_CTX_set1_hkdf_salt (pctx, salt, 32);
+		EVP_PKEY_CTX_set1_hkdf_key (pctx, key, keyLen);
+		if (info.length () > 0)
+			EVP_PKEY_CTX_add1_hkdf_info (pctx, info.c_str (), info.length ());
+		size_t outlen = 64;
+		EVP_PKEY_derive (pctx, out, &outlen);
+		EVP_PKEY_CTX_free (pctx);
+#else
+		uint8_t prk[32]; unsigned int len;
+		HMAC(EVP_sha256(), salt, 32, key, keyLen, prk, &len); 
+		auto l = info.length ();
+		memcpy (out, info.c_str (), l); out[l] = 0x01;
+		HMAC(EVP_sha256(), prk, 32, out, l + 1, out, &len);
+		memcpy (out + 32, info.c_str (), l); out[l + 32] = 0x02;
+		HMAC(EVP_sha256(), prk, 32, out, l + 33, out + 32, &len); 
+#endif
+	}
+
 // init and terminate
 
 /*	std::vector <std::unique_ptr<std::mutex> >  m_OpenSSLMutexes;

libi2pd/Crypto.h

@@ -27,6 +27,7 @@
 #   define X509_getm_notAfter X509_get_notAfter
 #else
 #   define LEGACY_OPENSSL 0
+#	define OPENSSL_HKDF 1
 #   if (OPENSSL_VERSION_NUMBER >= 0x010101000) // 1.1.1
 #	   define OPENSSL_EDDSA 1
 #	   define OPENSSL_X25519 1
@@ -290,6 +291,13 @@ namespace crypto
 
 	void AEADChaCha20Poly1305Encrypt (const std::vector<std::pair<uint8_t *, size_t> >& bufs, const uint8_t * key, const uint8_t * nonce, uint8_t * mac); // encrypt multiple buffers with zero ad
 
+// ChaCha20
+	void ChaCha20 (const uint8_t * msg, size_t msgLen, const uint8_t * key, const uint8_t * nonce, uint8_t * out);
+
+// HKDF
+
+	void HKDF (const uint8_t * salt, const uint8_t * key, size_t keyLen, const std::string& info, uint8_t * out); // salt - 32, out - 64, info <= 32 
+
 // init and terminate
 	void InitCrypto (bool precomputation);
 	void TerminateCrypto ();

libi2pd/Destination.cpp

@@ -213,7 +213,7 @@ namespace client
 		return pool->Reconfigure(inLen, outLen, inQuant, outQuant);
 	}
 	
-	std::shared_ptr<const i2p::data::LeaseSet> LeaseSetDestination::FindLeaseSet (const i2p::data::IdentHash& ident)
+	std::shared_ptr<i2p::data::LeaseSet> LeaseSetDestination::FindLeaseSet (const i2p::data::IdentHash& ident)
 	{
 		std::shared_ptr<i2p::data::LeaseSet> remoteLS;
 		{
@@ -272,15 +272,21 @@ namespace client
 		if (!m_Pool) return nullptr;
 		if (!m_LeaseSet)
 			UpdateLeaseSet ();
+		auto ls = GetLeaseSetMt ();
+		return (ls && ls->GetInnerLeaseSet ()) ? ls->GetInnerLeaseSet () : ls; // always non-encrypted
+	}
+
+	std::shared_ptr<const i2p::data::LocalLeaseSet> LeaseSetDestination::GetLeaseSetMt ()
+	{
 		std::lock_guard<std::mutex> l(m_LeaseSetMutex);
 		return m_LeaseSet;
 	}
 		
-	void LeaseSetDestination::SetLeaseSet (i2p::data::LocalLeaseSet * newLeaseSet)
+	void LeaseSetDestination::SetLeaseSet (std::shared_ptr<const i2p::data::LocalLeaseSet> newLeaseSet)
 	{
 		{
 			std::lock_guard<std::mutex> l(m_LeaseSetMutex);
-			m_LeaseSet.reset (newLeaseSet);
+			m_LeaseSet = newLeaseSet;
 		}
 		i2p::garlic::GarlicDestination::SetLeaseSetUpdated ();
 		if (m_IsPublic)
@@ -361,8 +367,10 @@ namespace client
 		}
 		i2p::data::IdentHash key (buf + DATABASE_STORE_KEY_OFFSET);
 		std::shared_ptr<i2p::data::LeaseSet> leaseSet;
-		if (buf[DATABASE_STORE_TYPE_OFFSET] == i2p::data::NETDB_STORE_TYPE_LEASESET || // 1
+		switch (buf[DATABASE_STORE_TYPE_OFFSET])
-			buf[DATABASE_STORE_TYPE_OFFSET] == i2p::data::NETDB_STORE_TYPE_STANDARD_LEASESET2) // 3
+		{
+			case i2p::data::NETDB_STORE_TYPE_LEASESET: // 1
+			case i2p::data::NETDB_STORE_TYPE_STANDARD_LEASESET2: // 3
 			{
 				LogPrint (eLogDebug, "Destination: Remote LeaseSet");
 				std::lock_guard<std::mutex> lock(m_RemoteLeaseSetsMutex);
@@ -407,9 +415,28 @@ namespace client
 						leaseSet = nullptr;
 					}
 				}
+				break;
+			}
+			case i2p::data::NETDB_STORE_TYPE_ENCRYPTED_LEASESET2: // 5
+			{
+				auto it2 = m_LeaseSetRequests.find (key);
+				if (it2 != m_LeaseSetRequests.end () && it2->second->requestedBlindedKey)
+				{
+					auto ls2 = std::make_shared<i2p::data::LeaseSet2> (buf + offset, len - offset, it2->second->requestedBlindedKey);
+					if (ls2->IsValid ())
+					{
+						m_RemoteLeaseSets[ls2->GetIdentHash ()] = ls2; // ident is not key
+						m_RemoteLeaseSets[key] = ls2; // also store as key for next lookup
+						leaseSet = ls2;
+					}
 				}
 				else
+					LogPrint (eLogInfo, "Destination: Couldn't find request for encrypted LeaseSet2");
+				break;
+			}
+			default:
 				LogPrint (eLogError, "Destination: Unexpected client's DatabaseStore type ", buf[DATABASE_STORE_TYPE_OFFSET], ", dropped");
+		}
 
 		auto it1 = m_LeaseSetRequests.find (key);
 		if (it1 != m_LeaseSetRequests.end ())
@@ -485,7 +512,8 @@ namespace client
 
 	void LeaseSetDestination::Publish ()
 	{
-		if (!m_LeaseSet || !m_Pool)
+		auto leaseSet = GetLeaseSetMt ();
+		if (!leaseSet || !m_Pool)
 		{
 			LogPrint (eLogError, "Destination: Can't publish non-existing LeaseSet");
 			return;
@@ -517,7 +545,7 @@ namespace client
 			LogPrint (eLogError, "Destination: Can't publish LeaseSet. No inbound tunnels");
 			return;
 		}
-		auto floodfill = i2p::data::netdb.GetClosestFloodfill (m_LeaseSet->GetIdentHash (), m_ExcludedFloodfills);
+		auto floodfill = i2p::data::netdb.GetClosestFloodfill (leaseSet->GetIdentHash (), m_ExcludedFloodfills);
 		if (!floodfill)
 		{
 			LogPrint (eLogError, "Destination: Can't publish LeaseSet, no more floodfills found");
@@ -527,7 +555,7 @@ namespace client
 		m_ExcludedFloodfills.insert (floodfill->GetIdentHash ());
 		LogPrint (eLogDebug, "Destination: Publish LeaseSet of ", GetIdentHash ().ToBase32 ());
 		RAND_bytes ((uint8_t *)&m_PublishReplyToken, 4);
-		auto msg = WrapMessage (floodfill, i2p::CreateDatabaseStoreMsg (m_LeaseSet, m_PublishReplyToken, inbound));
+		auto msg = WrapMessage (floodfill, i2p::CreateDatabaseStoreMsg (leaseSet, m_PublishReplyToken, inbound));
 		m_PublishConfirmationTimer.expires_from_now (boost::posix_time::seconds(PUBLISH_CONFIRMATION_TIMEOUT));
 		m_PublishConfirmationTimer.async_wait (std::bind (&LeaseSetDestination::HandlePublishConfirmationTimer,
 			shared_from_this (), std::placeholders::_1));
@@ -550,7 +578,7 @@ namespace client
 				else
 				{
 					LogPrint (eLogWarning, "Destination: Publish confirmation was not received in ", PUBLISH_CONFIRMATION_TIMEOUT,  " seconds from Java floodfill for crypto type ", (int)GetIdentity ()->GetCryptoKeyType ());
-					// Java floodfill never sends confirmantion back for unknown crypto type
+					// Java floodfill never sends confirmation back for unknown crypto type
 					// assume it successive and try to verify
 					m_PublishVerificationTimer.expires_from_now (boost::posix_time::seconds(PUBLISH_VERIFICATION_TIMEOUT));
 					m_PublishVerificationTimer.async_wait (std::bind (&LeaseSetDestination::HandlePublishVerificationTimer,
@@ -565,26 +593,32 @@ namespace client
 	{
 		if (ecode != boost::asio::error::operation_aborted)
 		{
+			auto ls = GetLeaseSetMt ();
+			if (!ls)
+			{
+				LogPrint (eLogWarning, "Destination: couldn't verify LeaseSet for ", GetIdentHash().ToBase32());
+				return;
+			}	
 			auto s = shared_from_this ();
-			RequestLeaseSet (GetIdentHash (),
+			// we must capture this for gcc 4.7 due the bug
-				// "this" added due to bug in gcc 4.7-4.8
+			RequestLeaseSet (ls->GetStoreHash (),
-				[s,this](std::shared_ptr<i2p::data::LeaseSet> leaseSet)
+				[s, ls, this](std::shared_ptr<const i2p::data::LeaseSet> leaseSet)
 				{
 					if (leaseSet)
 					{
-						if (s->m_LeaseSet && *s->m_LeaseSet == *leaseSet)
+						if (*ls == *leaseSet)
 						{
 							// we got latest LeasetSet
-							LogPrint (eLogDebug, "Destination: published LeaseSet verified for ", GetIdentHash().ToBase32());
+							LogPrint (eLogDebug, "Destination: published LeaseSet verified for ", s->GetIdentHash().ToBase32());
 							s->m_PublishVerificationTimer.expires_from_now (boost::posix_time::seconds(PUBLISH_REGULAR_VERIFICATION_INTERNAL));
 							s->m_PublishVerificationTimer.async_wait (std::bind (&LeaseSetDestination::HandlePublishVerificationTimer, s, std::placeholders::_1));
 							return;
 						}
 						else
-							LogPrint (eLogDebug, "Destination: LeaseSet is different than just published for ", GetIdentHash().ToBase32());
+							LogPrint (eLogDebug, "Destination: LeaseSet is different than just published for ", s->GetIdentHash().ToBase32());
 					}
 					else
-						LogPrint (eLogWarning, "Destination: couldn't find published LeaseSet for ", GetIdentHash().ToBase32());
+						LogPrint (eLogWarning, "Destination: couldn't find published LeaseSet for ", s->GetIdentHash().ToBase32());
 					// we have to publish again
 					s->Publish ();
 				});
@@ -605,7 +639,27 @@ namespace client
 				m_Service.post ([requestComplete](void){requestComplete (nullptr);});
 			return false;
 		}
-		m_Service.post (std::bind (&LeaseSetDestination::RequestLeaseSet, shared_from_this (), dest, requestComplete));
+		m_Service.post (std::bind (&LeaseSetDestination::RequestLeaseSet, shared_from_this (), dest, requestComplete, nullptr));
+		return true;
+	}
+
+	bool LeaseSetDestination::RequestDestinationWithEncryptedLeaseSet (std::shared_ptr<const i2p::data::BlindedPublicKey> dest, RequestComplete requestComplete)
+	{
+		if (!dest || !m_Pool || !IsReady ())
+		{
+			if (requestComplete)
+				m_Service.post ([requestComplete](void){requestComplete (nullptr);});
+			return false;
+		}	
+		auto storeHash = dest->GetStoreHash ();
+		auto leaseSet = FindLeaseSet (storeHash);	
+		if (leaseSet)
+		{
+			if (requestComplete)
+				m_Service.post ([requestComplete, leaseSet](void){requestComplete (leaseSet);});
+			return true;
+		}
+		m_Service.post (std::bind (&LeaseSetDestination::RequestLeaseSet, shared_from_this (), storeHash, requestComplete, dest));
 		return true;
 	}
 
@@ -624,13 +678,20 @@ namespace client
 			});
 	}
 
-	void LeaseSetDestination::RequestLeaseSet (const i2p::data::IdentHash& dest, RequestComplete requestComplete)
+	void LeaseSetDestination::CancelDestinationRequestWithEncryptedLeaseSet (std::shared_ptr<const i2p::data::BlindedPublicKey> dest, bool notify)
+	{
+		if (dest)
+			CancelDestinationRequest (dest->GetStoreHash (), notify);
+	}
+
+	void LeaseSetDestination::RequestLeaseSet (const i2p::data::IdentHash& dest, RequestComplete requestComplete, std::shared_ptr<const i2p::data::BlindedPublicKey> requestedBlindedKey)
 	{
 		std::set<i2p::data::IdentHash> excluded;
 		auto floodfill = i2p::data::netdb.GetClosestFloodfill (dest, excluded);
 		if (floodfill)
 		{
 			auto request = std::make_shared<LeaseSetRequest> (m_Service);
+			request->requestedBlindedKey = requestedBlindedKey; // for encrypted LeaseSet2
 			if (requestComplete)
 				request->requestComplete.push_back (requestComplete);
 			auto ts = i2p::util::GetSecondsSinceEpoch ();
@@ -777,6 +838,9 @@ namespace client
 		m_DatagramDestination (nullptr), m_RefCounter (0),
 		m_ReadyChecker(GetService())
 	{
+		if (keys.IsOfflineSignature () && GetLeaseSetType () == i2p::data::NETDB_STORE_TYPE_LEASESET)
+			SetLeaseSetType (i2p::data::NETDB_STORE_TYPE_STANDARD_LEASESET2); // offline keys can be published with LS2 only
+
 		m_EncryptionKeyType = GetIdentity ()->GetCryptoKeyType ();
 		// extract encryption type params for LS2
 		if (GetLeaseSetType () == i2p::data::NETDB_STORE_TYPE_STANDARD_LEASESET2 && params)
@@ -922,7 +986,7 @@ namespace client
 		{
 			auto s = GetSharedFromThis ();
 			RequestDestination (dest,
-				[s, streamRequestComplete, port](std::shared_ptr<i2p::data::LeaseSet> ls)
+				[s, streamRequestComplete, port](std::shared_ptr<const i2p::data::LeaseSet> ls)
 				{
 					if (ls)
 						streamRequestComplete(s->CreateStream (ls, port));
@@ -932,6 +996,24 @@ namespace client
 		}
 	}
 
+	void ClientDestination::CreateStream (StreamRequestComplete streamRequestComplete, std::shared_ptr<const i2p::data::BlindedPublicKey> dest, int port)
+	{
+		if (!streamRequestComplete)
+		{
+			LogPrint (eLogError, "Destination: request callback is not specified in CreateStream");
+			return;
+		}
+		auto s = GetSharedFromThis ();
+		RequestDestinationWithEncryptedLeaseSet (dest,
+			[s, streamRequestComplete, port](std::shared_ptr<i2p::data::LeaseSet> ls)
+			{
+				if (ls)
+					streamRequestComplete(s->CreateStream (ls, port));
+				else
+					streamRequestComplete (nullptr);
+			});
+	}
+
 	std::shared_ptr<i2p::stream::Stream> ClientDestination::CreateStream (std::shared_ptr<const i2p::data::LeaseSet> remote, int port)
 	{
 		if (m_StreamingDestination)
@@ -1036,21 +1118,22 @@ namespace client
 
 	void ClientDestination::CreateNewLeaseSet (std::vector<std::shared_ptr<i2p::tunnel::InboundTunnel> > tunnels)
 	{
-		i2p::data::LocalLeaseSet * leaseSet = nullptr;
+		std::shared_ptr<i2p::data::LocalLeaseSet> leaseSet;
 		if (GetLeaseSetType () == i2p::data::NETDB_STORE_TYPE_LEASESET)
 		{
-			leaseSet = new i2p::data::LocalLeaseSet (GetIdentity (), m_EncryptionPublicKey, tunnels);
+			leaseSet = std::make_shared<i2p::data::LocalLeaseSet> (GetIdentity (), m_EncryptionPublicKey, tunnels);
 			// sign
 			Sign (leaseSet->GetBuffer (), leaseSet->GetBufferLen () - leaseSet->GetSignatureLen (), leaseSet->GetSignature ()); 
 		}
 		else
 		{
-			// standard LS2 (type 3) assumed for now. TODO: implement others
+			// standard LS2 (type 3) first
 			auto keyLen = m_Decryptor ? m_Decryptor->GetPublicKeyLen () : 256;
-			leaseSet = new i2p::data::LocalLeaseSet2 (i2p::data::NETDB_STORE_TYPE_STANDARD_LEASESET2,
+			auto ls2 = std::make_shared<i2p::data::LocalLeaseSet2> (i2p::data::NETDB_STORE_TYPE_STANDARD_LEASESET2,
-				GetIdentity (), m_EncryptionKeyType, keyLen, m_EncryptionPublicKey, tunnels);
+				m_Keys, m_EncryptionKeyType, keyLen, m_EncryptionPublicKey, tunnels);
-			// sign
+			if (GetLeaseSetType () == i2p::data::NETDB_STORE_TYPE_ENCRYPTED_LEASESET2) // encrypt if type 5
-			Sign (leaseSet->GetBuffer () - 1, leaseSet->GetBufferLen () - leaseSet->GetSignatureLen () + 1, leaseSet->GetSignature ()); // + leading store type
+				ls2 = std::make_shared<i2p::data::LocalEncryptedLeaseSet2> (ls2, m_Keys);
+			leaseSet = ls2;
 		}
 		SetLeaseSet (leaseSet);
 	}

libi2pd/Destination.h

@@ -82,6 +82,7 @@ namespace client
 			std::list<RequestComplete> requestComplete;
 			std::shared_ptr<i2p::tunnel::OutboundTunnel> outboundTunnel;
 			std::shared_ptr<i2p::tunnel::InboundTunnel> replyTunnel;
+			std::shared_ptr<const i2p::data::BlindedPublicKey> requestedBlindedKey; // for encrypted LeaseSet2 only
 
 			void Complete (std::shared_ptr<i2p::data::LeaseSet> ls)
 			{
@@ -107,9 +108,11 @@ namespace client
 			boost::asio::io_service& GetService () { return m_Service; };
 			std::shared_ptr<i2p::tunnel::TunnelPool> GetTunnelPool () { return m_Pool; };
 			bool IsReady () const { return m_LeaseSet && !m_LeaseSet->IsExpired () && m_Pool->GetOutboundTunnels ().size () > 0; };
-			std::shared_ptr<const i2p::data::LeaseSet> FindLeaseSet (const i2p::data::IdentHash& ident);
+			std::shared_ptr<i2p::data::LeaseSet> FindLeaseSet (const i2p::data::IdentHash& ident);
 			bool RequestDestination (const i2p::data::IdentHash& dest, RequestComplete requestComplete = nullptr);
+			bool RequestDestinationWithEncryptedLeaseSet (std::shared_ptr<const i2p::data::BlindedPublicKey>  dest, RequestComplete requestComplete = nullptr); 
 			void CancelDestinationRequest (const i2p::data::IdentHash& dest, bool notify = true);
+			void CancelDestinationRequestWithEncryptedLeaseSet (std::shared_ptr<const i2p::data::BlindedPublicKey> dest, bool notify = true);
 
 			// implements GarlicDestination
 			std::shared_ptr<const i2p::data::LocalLeaseSet> GetLeaseSet ();
@@ -124,8 +127,9 @@ namespace client
 
 		protected:
 
-			void SetLeaseSet (i2p::data::LocalLeaseSet * newLeaseSet);
+			void SetLeaseSet (std::shared_ptr<const i2p::data::LocalLeaseSet> newLeaseSet);
 			int GetLeaseSetType () const { return m_LeaseSetType; };
+			void SetLeaseSetType (int leaseSetType) { m_LeaseSetType = leaseSetType; };
 			virtual void CleanupDestination () {}; // additional clean up in derived classes
 			// I2CP
 			virtual void HandleDataMessage (const uint8_t * buf, size_t len) = 0;
@@ -135,6 +139,7 @@ namespace client
 
 			void Run ();
 			void UpdateLeaseSet ();
+			std::shared_ptr<const i2p::data::LocalLeaseSet> GetLeaseSetMt ();
 			void Publish ();
 			void HandlePublishConfirmationTimer (const boost::system::error_code& ecode);
 			void HandlePublishVerificationTimer (const boost::system::error_code& ecode);
@@ -143,7 +148,7 @@ namespace client
 			void HandleDatabaseSearchReplyMessage (const uint8_t * buf, size_t len);
 			void HandleDeliveryStatusMessage (std::shared_ptr<I2NPMessage> msg);
 
-			void RequestLeaseSet (const i2p::data::IdentHash& dest, RequestComplete requestComplete);
+			void RequestLeaseSet (const i2p::data::IdentHash& dest, RequestComplete requestComplete, std::shared_ptr<const i2p::data::BlindedPublicKey> requestedBlindedKey = nullptr);
 			bool SendLeaseSetRequest (const i2p::data::IdentHash& dest, std::shared_ptr<const i2p::data::RouterInfo>  nextFloodfill, std::shared_ptr<LeaseSetRequest> request);
 			void HandleRequestTimoutTimer (const boost::system::error_code& ecode, const i2p::data::IdentHash& dest);
 			void HandleCleanupTimer (const boost::system::error_code& ecode);
@@ -160,7 +165,7 @@ namespace client
 
 			std::shared_ptr<i2p::tunnel::TunnelPool> m_Pool;
 			std::mutex m_LeaseSetMutex;
-			std::shared_ptr<i2p::data::LocalLeaseSet> m_LeaseSet;
+			std::shared_ptr<const i2p::data::LocalLeaseSet> m_LeaseSet;
 			bool m_IsPublic;
 			uint32_t m_PublishReplyToken;
 			uint64_t m_LastSubmissionTime; // in seconds
@@ -208,6 +213,7 @@ namespace client
 			std::shared_ptr<i2p::stream::StreamingDestination> GetStreamingDestination (int port = 0) const;
 			// following methods operate with default streaming destination
 			void CreateStream (StreamRequestComplete streamRequestComplete, const i2p::data::IdentHash& dest, int port = 0);
+			void CreateStream (StreamRequestComplete streamRequestComplete, std::shared_ptr<const i2p::data::BlindedPublicKey> dest, int port = 0);
 			std::shared_ptr<i2p::stream::Stream> CreateStream (std::shared_ptr<const i2p::data::LeaseSet> remote, int port = 0);
 			void AcceptStreams (const i2p::stream::StreamingDestination::Acceptor& acceptor);
 			void StopAcceptingStreams ();

libi2pd/Ed25519.cpp

@@ -121,8 +121,8 @@ namespace crypto
 		return passed;
 	}
 
-	void Ed25519::Sign (const uint8_t * expandedPrivateKey, const uint8_t * publicKeyEncoded, const uint8_t * buf, size_t len,
+	void Ed25519::Sign (const uint8_t * expandedPrivateKey, const uint8_t * publicKeyEncoded, 
-		uint8_t * signature) const
+		const uint8_t * buf, size_t len, uint8_t * signature) const
 	{
 		BN_CTX * bnCtx = BN_CTX_new ();
 		// calculate r
@@ -153,6 +153,44 @@ namespace crypto
 		BN_CTX_free (bnCtx);
 	}
 
+	void Ed25519::SignRedDSA (const uint8_t * privateKey, const uint8_t * publicKeyEncoded, 
+		const uint8_t * buf, size_t len, uint8_t * signature) const
+	{
+		BN_CTX * bnCtx = BN_CTX_new ();
+		// T = 80 random bytes
+		uint8_t T[80];
+		RAND_bytes (T, 80);
+		// calculate r = H*(T || publickey || data)
+		SHA512_CTX ctx;
+		SHA512_Init (&ctx);
+		SHA512_Update (&ctx, T, 80);
+		SHA512_Update (&ctx, publicKeyEncoded, 32); 
+		SHA512_Update (&ctx, buf, len); // data
+		uint8_t digest[64];
+		SHA512_Final (digest, &ctx);
+		BIGNUM * r = DecodeBN<64> (digest); 
+		BN_mod (r, r, l, bnCtx); // % l	
+		EncodeBN (r, digest, 32);
+		// calculate R
+		uint8_t R[EDDSA25519_SIGNATURE_LENGTH/2]; // we must use separate buffer because signature might be inside buf
+		EncodePoint (Normalize (MulB (digest, bnCtx), bnCtx), R); 
+		// calculate S
+		SHA512_Init (&ctx);
+		SHA512_Update (&ctx, R, EDDSA25519_SIGNATURE_LENGTH/2); // R
+		SHA512_Update (&ctx, publicKeyEncoded, EDDSA25519_PUBLIC_KEY_LENGTH); // public key
+		SHA512_Update (&ctx, buf, len); // data
+		SHA512_Final (digest, &ctx);
+		BIGNUM * h = DecodeBN<64> (digest);
+		// S = (r + h*a) % l
+		BIGNUM * a = DecodeBN<EDDSA25519_PRIVATE_KEY_LENGTH> (privateKey); 
+		BN_mod_mul (h, h, a, l, bnCtx); // %l
+		BN_mod_add (h, h, r, l, bnCtx); // %l
+		memcpy (signature, R, EDDSA25519_SIGNATURE_LENGTH/2);
+		EncodeBN (h, signature + EDDSA25519_SIGNATURE_LENGTH/2, EDDSA25519_SIGNATURE_LENGTH/2); // S
+		BN_free (r); BN_free (h); BN_free (a);
+		BN_CTX_free (bnCtx);
+	}
+	
 	EDDSAPoint Ed25519::Sum (const EDDSAPoint& p1, const EDDSAPoint& p2, BN_CTX * ctx) const
 	{
 		// x3 = (x1*y2+y1*x2)*(z1*z2-d*t1*t2)
@@ -491,6 +529,39 @@ namespace crypto
 	}
 #endif
 
+	void Ed25519::BlindPublicKey (const uint8_t * pub, const uint8_t * seed, uint8_t * blinded)
+	{
+		BN_CTX * ctx = BN_CTX_new ();
+		// calculate alpha = seed mod l
+		BIGNUM * alpha = DecodeBN<64> (seed); // seed is in Little Endian 
+		BN_mod (alpha, alpha, l, ctx); // % l
+		uint8_t priv[32];	
+		EncodeBN (alpha, priv, 32); // back to Little Endian
+		BN_free (alpha);
+		// A' = BLIND_PUBKEY(A, alpha) = A + DERIVE_PUBLIC(alpha)
+		auto A1 = Sum (DecodePublicKey (pub, ctx), MulB (priv, ctx), ctx); // pub + B*alpha
+		EncodePublicKey (A1, blinded, ctx);
+		BN_CTX_free (ctx);
+	}
+
+	void Ed25519::BlindPrivateKey (const uint8_t * priv, const uint8_t * seed, uint8_t * blindedPriv, uint8_t * blindedPub)
+	{
+		BN_CTX * ctx = BN_CTX_new ();
+		// calculate alpha = seed mod l
+		BIGNUM * alpha = DecodeBN<64> (seed); // seed is in Little Endian 
+		BN_mod (alpha, alpha, l, ctx); // % l
+		BIGNUM * p = DecodeBN<32> (priv); // priv is in Little Endian 
+		BN_add (alpha, alpha, p); // alpha = alpha + priv
+		// a' = BLIND_PRIVKEY(a, alpha) = (a + alpha) mod L	
+		BN_mod (alpha, alpha, l, ctx); // % l
+		EncodeBN (alpha, blindedPriv, 32);
+		// A' = DERIVE_PUBLIC(a') 	
+		auto A1 = MulB (blindedPriv, ctx);
+		EncodePublicKey (A1, blindedPub, ctx); 
+		BN_free (alpha); BN_free (p);
+		BN_CTX_free (ctx);
+	}
+
 	void Ed25519::ExpandPrivateKey (const uint8_t * key, uint8_t * expandedKey)
 	{
 		SHA512 (key, EDDSA25519_PRIVATE_KEY_LENGTH, expandedKey);
@@ -499,6 +570,18 @@ namespace crypto
 		expandedKey[EDDSA25519_PRIVATE_KEY_LENGTH - 1] |= 0x40; // set second bit
 	}
 
+	void Ed25519::CreateRedDSAPrivateKey (uint8_t * priv)
+	{
+		uint8_t seed[32];
+		RAND_bytes (seed, 32);
+		BIGNUM * p = DecodeBN<32> (seed); 	
+		BN_CTX * ctx = BN_CTX_new ();
+		BN_mod (p, p, l, ctx); // % l
+		EncodeBN (p, priv, 32); 
+		BN_CTX_free (ctx);
+		BN_free (p);
+	}	
+	
 	static std::unique_ptr<Ed25519> g_Ed25519;
 	std::unique_ptr<Ed25519>& GetEd25519 ()
 	{

libi2pd/Ed25519.h

@@ -80,11 +80,15 @@ namespace crypto
 			void ScalarMul (const uint8_t * p, const  uint8_t * e, uint8_t * buf, BN_CTX * ctx) const; // p is point, e is number for x25519
 			void ScalarMulB (const  uint8_t * e, uint8_t * buf, BN_CTX * ctx) const;
 #endif
+			void BlindPublicKey (const uint8_t * pub, const uint8_t * seed, uint8_t * blinded); // for encrypted LeaseSet2, pub - 32, seed - 64, blinded - 32
+			void BlindPrivateKey (const uint8_t * priv, const uint8_t * seed, uint8_t * blindedPriv, uint8_t * blindedPub); // for encrypted LeaseSet2, pub - 32, seed - 64, blinded - 32
 
 			bool Verify (const EDDSAPoint& publicKey, const uint8_t * digest, const uint8_t * signature) const;
 			void Sign (const uint8_t * expandedPrivateKey, const uint8_t * publicKeyEncoded, const uint8_t * buf, size_t len, uint8_t * signature) const;
+			void SignRedDSA (const uint8_t * privateKey, const uint8_t * publicKeyEncoded, const uint8_t * buf, size_t len, uint8_t * signature) const;
 			
 			static void ExpandPrivateKey (const uint8_t * key, uint8_t * expandedKey); // key - 32 bytes, expandedKey - 64 bytes
+			void CreateRedDSAPrivateKey (uint8_t * priv); // priv is 32 bytes
 			
 		private:
 

libi2pd/FS.cpp

@@ -11,6 +11,7 @@
 
 #ifdef _WIN32
 #include <shlobj.h>
+#include <windows.h>
 #endif
 
 #include "Base.h"
@@ -47,18 +48,39 @@ namespace fs {
 		}
 #if defined(WIN32) || defined(_WIN32)
 		char localAppData[MAX_PATH];
+
 		// check executable directory first
-    GetModuleFileName (NULL, localAppData, MAX_PATH);
+		if(!GetModuleFileName(NULL, localAppData, MAX_PATH))
+		{
+#if defined(WIN32_APP)
+			MessageBox(NULL, TEXT("Unable to get application path!"), TEXT("I2Pd: error"), MB_ICONERROR | MB_OK);
+#else
+			fprintf(stderr, "Error: Unable to get application path!");
+#endif
+			exit(1);
+		}
+		else
+		{
 			auto execPath = boost::filesystem::path(localAppData).parent_path();
+
 			// if config file exists in .exe's folder use it
 			if(boost::filesystem::exists(execPath/"i2pd.conf")) // TODO: magic string
 				dataDir = execPath.string ();
-    else
+			else // otherwise %appdata%
 			{
-        // otherwise %appdata%
+				if(SHGetFolderPath(NULL, CSIDL_APPDATA, NULL, 0, localAppData) != S_OK)
-        SHGetFolderPath(NULL, CSIDL_APPDATA, NULL, 0, localAppData);
+				{
+#if defined(WIN32_APP)
+					MessageBox(NULL, TEXT("Unable to get AppData path!"), TEXT("I2Pd: error"), MB_ICONERROR | MB_OK);
+#else
+					fprintf(stderr, "Error: Unable to get AppData path!");
+#endif
+					exit(1);
+				}
+				else
 					dataDir = std::string(localAppData) + "\\" + appName;
 			}
+		}
 		return;
 #elif defined(MAC_OSX)
 		char *home = getenv("HOME");
@@ -74,8 +96,8 @@ namespace fs {
 			dataDir = std::string (ext) + "/" + appName;
 			return;
 		}
-	// otherwise use /data/files
 #endif
+		// otherwise use /data/files
 		char *home = getenv("HOME");
 		if (isService) {
 			dataDir = "/var/lib/" + appName;
@@ -91,9 +113,11 @@ namespace fs {
 	bool Init() {
 		if (!boost::filesystem::exists(dataDir))
 			boost::filesystem::create_directory(dataDir);
+
 		std::string destinations = DataDirPath("destinations");
 		if (!boost::filesystem::exists(destinations))
 			boost::filesystem::create_directory(destinations);
+
 		std::string tags = DataDirPath("tags");
 		if (!boost::filesystem::exists(tags))
 			boost::filesystem::create_directory(tags);
@@ -124,7 +148,8 @@ namespace fs {
 
 	uint32_t GetLastUpdateTime (const std::string & path)
 	{
-	 if (!boost::filesystem::exists(path)) return 0;
+		if (!boost::filesystem::exists(path))
+			return 0;
 		boost::system::error_code ec;
 		auto t = boost::filesystem::last_write_time (path, ec);
 		return ec ? 0 : t;
@@ -138,8 +163,8 @@ namespace fs {
 
 	bool CreateDirectory (const std::string& path)
 	{
-		if (boost::filesystem::exists(path) &&
+		if (boost::filesystem::exists(path) && boost::filesystem::is_directory (boost::filesystem::status (path)))
-			boost::filesystem::is_directory (boost::filesystem::status (path))) return true;
+			return true;
 		return boost::filesystem::create_directory(path);
 	}
 

libi2pd/FS.h

@@ -66,7 +66,7 @@ namespace fs {
 
   /** @brief Returns current application name, default 'i2pd' */
 	const std::string & GetAppName ();
-  /** @brief Set applicaton name, affects autodetection of datadir */
+  /** @brief Set application name, affects autodetection of datadir */
 	void SetAppName (const std::string& name);
 
   /** @brief Returns datadir path */

libi2pd/Garlic.cpp

@@ -578,7 +578,7 @@ namespace garlic
 							tunnel = from->GetTunnelPool ()->GetNextOutboundTunnel ();
 						else
 							LogPrint (eLogError, "Garlic: Tunnel pool is not set for inbound tunnel");
-						if (tunnel) // we have send it through an outbound tunnel
+						if (tunnel) // we have sent it through an outbound tunnel
 							tunnel->SendTunnelDataMsg (gwHash, gwTunnel, msg);
 						else
 							LogPrint (eLogWarning, "Garlic: No outbound tunnels available for garlic clove");

libi2pd/HTTP.cpp

@@ -55,12 +55,16 @@ namespace http {
   static std::pair<std::string, std::string> parse_header_line(const std::string& line)
   {
     std::size_t pos = 0;
-    std::size_t len = 2; /* strlen(": ") */
+    std::size_t len = 1; /*: */
     std::size_t max = line.length();
-    if ((pos = line.find(": ", pos)) == std::string::npos)
+    if ((pos = line.find(':', pos)) == std::string::npos)
-      return std::make_pair("", "");
+      return std::make_pair("", ""); // no ':' found
+	if (pos + 1 < max) // ':' at the end of header is valid
+	{		
     	while ((pos + len) < max && isspace(line.at(pos + len)))
       		len++;
+		if (len == 1) return std::make_pair("", ""); // no following space, but something else
+	}
     return std::make_pair(line.substr(0, pos), line.substr(pos + len));
   }
 

libi2pd/I2NPProtocol.cpp

@@ -279,7 +279,7 @@ namespace i2p
 		if (!leaseSet) return nullptr;
 		auto m = NewI2NPShortMessage ();
 		uint8_t * payload = m->GetPayload ();
-		memcpy (payload + DATABASE_STORE_KEY_OFFSET, leaseSet->GetIdentHash (), 32);
+		memcpy (payload + DATABASE_STORE_KEY_OFFSET, leaseSet->GetStoreHash (), 32);
 		payload[DATABASE_STORE_TYPE_OFFSET] = leaseSet->GetStoreType (); // LeaseSet or LeaseSet2
 		htobe32buf (payload + DATABASE_STORE_REPLY_TOKEN_OFFSET, replyToken);
 		size_t size = DATABASE_STORE_HEADER_SIZE;

libi2pd/Identity.cpp

@@ -1,8 +1,7 @@
-#include <time.h>
-#include <stdio.h>
 #include "Crypto.h"
 #include "I2PEndian.h"
 #include "Log.h"
+#include "Timestamp.h"
 #include "Identity.h"
 
 namespace i2p
@@ -77,6 +76,7 @@ namespace data
 					LogPrint (eLogError, "Identity: RSA signing key type ", (int)type, " is not supported");
 				break;
 				case SIGNING_KEY_TYPE_EDDSA_SHA512_ED25519:
+				case SIGNING_KEY_TYPE_REDDSA_SHA512_ED25519:
 				{
 					size_t padding = 128 - i2p::crypto::EDDSA25519_PUBLIC_KEY_LENGTH; // 96 = 128 - 32
 					RAND_bytes (m_StandardIdentity.signingKey, padding);
@@ -275,6 +275,13 @@ namespace data
 		return 128;
 	}
 
+	const uint8_t * IdentityEx::GetSigningPublicKeyBuffer () const
+	{
+		auto keyLen = GetSigningPublicKeyLen ();
+		if (keyLen > 128) return nullptr; // P521
+		return m_StandardIdentity.signingKey + 128 - keyLen;
+	}
+
 	size_t IdentityEx::GetSigningPrivateKeyLen () const
 	{
 		if (!m_Verifier) CreateVerifier ();
@@ -336,6 +343,8 @@ namespace data
 				return new i2p::crypto::GOSTR3410_256_Verifier (i2p::crypto::eGOSTR3410CryptoProA);
 			case SIGNING_KEY_TYPE_GOSTR3410_TC26_A_512_GOSTR3411_512:
 				return new i2p::crypto::GOSTR3410_512_Verifier (i2p::crypto::eGOSTR3410TC26A512);
+			case SIGNING_KEY_TYPE_REDDSA_SHA512_ED25519:
+				return new i2p::crypto::RedDSA25519Verifier ();
 			case SIGNING_KEY_TYPE_RSA_SHA256_2048:
 			case SIGNING_KEY_TYPE_RSA_SHA384_3072:
 			case SIGNING_KEY_TYPE_RSA_SHA512_4096:
@@ -432,6 +441,9 @@ namespace data
 		m_Public = std::make_shared<IdentityEx>(Identity (keys));
 		memcpy (m_PrivateKey, keys.privateKey, 256); // 256
 		memcpy (m_SigningPrivateKey, keys.signingPrivateKey, m_Public->GetSigningPrivateKeyLen ());
+		m_OfflineSignature.resize (0);
+		m_TransientSignatureLen = 0;
+		m_TransientSigningPrivateKeyLen = 0;
 		m_Signer = nullptr;
 		CreateSigner ();
 		return *this;
@@ -441,12 +453,23 @@ namespace data
 	{
 		m_Public = std::make_shared<IdentityEx>(*other.m_Public);
 		memcpy (m_PrivateKey, other.m_PrivateKey, 256); // 256
-		memcpy (m_SigningPrivateKey, other.m_SigningPrivateKey, m_Public->GetSigningPrivateKeyLen ());
+		m_OfflineSignature = other.m_OfflineSignature;
+		m_TransientSignatureLen = other.m_TransientSignatureLen;
+		m_TransientSigningPrivateKeyLen = other.m_TransientSigningPrivateKeyLen;
+		memcpy (m_SigningPrivateKey, other.m_SigningPrivateKey, m_TransientSigningPrivateKeyLen > 0 ? m_TransientSigningPrivateKeyLen : m_Public->GetSigningPrivateKeyLen ());
 		m_Signer = nullptr;
 		CreateSigner ();
 		return *this;
 	}
 
+	size_t PrivateKeys::GetFullLen () const 
+	{ 
+		size_t ret = m_Public->GetFullLen () + 256 + m_Public->GetSigningPrivateKeyLen (); 
+		if (IsOfflineSignature ())
+			ret += m_OfflineSignature.size () + m_TransientSigningPrivateKeyLen;
+		return ret;
+	}
+
 	size_t PrivateKeys::FromBuffer (const uint8_t * buf, size_t len)
 	{
 		m_Public = std::make_shared<IdentityEx>();
@@ -455,11 +478,50 @@ namespace data
 		memcpy (m_PrivateKey, buf + ret, 256); // private key always 256
 		ret += 256;
 		size_t signingPrivateKeySize = m_Public->GetSigningPrivateKeyLen ();
-		if(signingPrivateKeySize + ret > len) return 0; // overflow
+		if(signingPrivateKeySize + ret > len || signingPrivateKeySize > 128) return 0; // overflow
 		memcpy (m_SigningPrivateKey, buf + ret, signingPrivateKeySize);
 		ret += signingPrivateKeySize;
 		m_Signer = nullptr;
-		CreateSigner ();
+		// check if signing private key is all zeros
+		bool allzeros = true;
+		for (size_t i = 0; i < signingPrivateKeySize; i++)
+			if (m_SigningPrivateKey[i]) 
+			{
+				allzeros = false;
+				break;
+			}
+		if (allzeros)
+		{
+			// offline information
+			const uint8_t * offlineInfo = buf + ret;
+			ret += 4; // expires timestamp
+			SigningKeyType keyType = bufbe16toh (buf + ret); ret += 2; // key type
+			std::unique_ptr<i2p::crypto::Verifier> transientVerifier (IdentityEx::CreateVerifier (keyType));
+			if (!transientVerifier) return 0;
+			auto keyLen = transientVerifier->GetPublicKeyLen ();
+			if (keyLen + ret > len) return 0;
+			transientVerifier->SetPublicKey (buf + ret); ret += keyLen;
+			if (m_Public->GetSignatureLen () + ret > len) return 0;
+			if (!m_Public->Verify (offlineInfo, keyLen + 6, buf + ret)) 
+			{
+				LogPrint (eLogError, "Identity: offline signature verification failed");
+				return 0;
+			}
+			ret += m_Public->GetSignatureLen ();
+			m_TransientSignatureLen = transientVerifier->GetSignatureLen ();
+			// copy offline signature
+			size_t offlineInfoLen = buf + ret - offlineInfo;
+			m_OfflineSignature.resize (offlineInfoLen);
+			memcpy (m_OfflineSignature.data (), offlineInfo, offlineInfoLen);
+			// override signing private key 
+			m_TransientSigningPrivateKeyLen = transientVerifier->GetPrivateKeyLen ();
+			if (m_TransientSigningPrivateKeyLen + ret > len || m_TransientSigningPrivateKeyLen > 128) return 0;
+			memcpy (m_SigningPrivateKey, buf + ret, m_TransientSigningPrivateKeyLen);
+			ret += m_TransientSigningPrivateKeyLen;
+			CreateSigner (keyType);
+		}
+		else
+			CreateSigner (m_Public->GetSigningKeyType ());
 		return ret;
 	}
 
@@ -470,8 +532,23 @@ namespace data
 		ret += 256;
 		size_t signingPrivateKeySize = m_Public->GetSigningPrivateKeyLen ();
 		if(ret + signingPrivateKeySize > len) return 0; // overflow
+		if (IsOfflineSignature ())
+			memset (buf + ret, 0, signingPrivateKeySize);
+		else
 			memcpy (buf + ret, m_SigningPrivateKey, signingPrivateKeySize);
 		ret += signingPrivateKeySize;
+		if (IsOfflineSignature ())
+		{
+			// offline signature
+			auto offlineSignatureLen = m_OfflineSignature.size ();
+			if (ret + offlineSignatureLen > len) return 0;
+			memcpy (buf + ret, m_OfflineSignature.data (), offlineSignatureLen);
+			ret += offlineSignatureLen;
+			// transient private key
+			if (ret + m_TransientSigningPrivateKeyLen > len) return 0;
+			memcpy (buf + ret, m_SigningPrivateKey, m_TransientSigningPrivateKeyLen);
+			ret += m_TransientSigningPrivateKeyLen;
+		}
 		return ret;
 	}
 
@@ -506,38 +583,66 @@ namespace data
 
 	void PrivateKeys::CreateSigner () const
 	{
-		if (m_Signer) return;
+		if (IsOfflineSignature ())
-		switch (m_Public->GetSigningKeyType ())
+			CreateSigner (bufbe16toh (m_OfflineSignature.data () + 4)); // key type
+		else
+			CreateSigner (m_Public->GetSigningKeyType ());
+	}
+	
+	void PrivateKeys::CreateSigner (SigningKeyType keyType) const
 	{
-			case SIGNING_KEY_TYPE_DSA_SHA1:
+		if (m_Signer) return;	
+		if (keyType == SIGNING_KEY_TYPE_DSA_SHA1)
 			m_Signer.reset (new i2p::crypto::DSASigner (m_SigningPrivateKey, m_Public->GetStandardIdentity ().signingKey));
-			break;
+		else if (keyType == SIGNING_KEY_TYPE_EDDSA_SHA512_ED25519 && !IsOfflineSignature ())
+			m_Signer.reset (new i2p::crypto::EDDSA25519Signer (m_SigningPrivateKey, m_Public->GetStandardIdentity ().certificate - i2p::crypto::EDDSA25519_PUBLIC_KEY_LENGTH)); // TODO: remove public key check
+		else
+		{
+			// public key is not required
+			auto signer = CreateSigner (keyType, m_SigningPrivateKey);
+			if (signer) m_Signer.reset (signer);
+		}	
+	}
+
+	i2p::crypto::Signer * PrivateKeys::CreateSigner (SigningKeyType keyType, const uint8_t * priv)
+	{
+		switch (keyType)
+		{
 			case SIGNING_KEY_TYPE_ECDSA_SHA256_P256:
-				m_Signer.reset (new i2p::crypto::ECDSAP256Signer (m_SigningPrivateKey));
+				return new i2p::crypto::ECDSAP256Signer (priv);
 			break;
 			case SIGNING_KEY_TYPE_ECDSA_SHA384_P384:
-				m_Signer.reset (new i2p::crypto::ECDSAP384Signer (m_SigningPrivateKey));
+				return new i2p::crypto::ECDSAP384Signer (priv);
 			break;
 			case SIGNING_KEY_TYPE_ECDSA_SHA512_P521:
-				m_Signer.reset (new i2p::crypto::ECDSAP521Signer (m_SigningPrivateKey));
+				return new i2p::crypto::ECDSAP521Signer (priv);
 			break;
 			case SIGNING_KEY_TYPE_RSA_SHA256_2048:
 			case SIGNING_KEY_TYPE_RSA_SHA384_3072:
 			case SIGNING_KEY_TYPE_RSA_SHA512_4096:
-				LogPrint (eLogError, "Identity: RSA signing key type ", (int)m_Public->GetSigningKeyType (), " is not supported");
+				LogPrint (eLogError, "Identity: RSA signing key type ", (int)keyType, " is not supported");
 			break;
 			case SIGNING_KEY_TYPE_EDDSA_SHA512_ED25519:
-				m_Signer.reset (new i2p::crypto::EDDSA25519Signer (m_SigningPrivateKey, m_Public->GetStandardIdentity ().certificate - i2p::crypto::EDDSA25519_PUBLIC_KEY_LENGTH));
+				return new i2p::crypto::EDDSA25519Signer (priv, nullptr);
 			break;
 			case SIGNING_KEY_TYPE_GOSTR3410_CRYPTO_PRO_A_GOSTR3411_256:
-				m_Signer.reset (new i2p::crypto::GOSTR3410_256_Signer (i2p::crypto::eGOSTR3410CryptoProA, m_SigningPrivateKey));
+				return new i2p::crypto::GOSTR3410_256_Signer (i2p::crypto::eGOSTR3410CryptoProA, priv);
 			break;
 			case SIGNING_KEY_TYPE_GOSTR3410_TC26_A_512_GOSTR3411_512:
-				m_Signer.reset (new i2p::crypto::GOSTR3410_512_Signer (i2p::crypto::eGOSTR3410TC26A512, m_SigningPrivateKey));
+				return new i2p::crypto::GOSTR3410_512_Signer (i2p::crypto::eGOSTR3410TC26A512, priv);
+			break;
+			case SIGNING_KEY_TYPE_REDDSA_SHA512_ED25519:
+				return new i2p::crypto::RedDSA25519Signer (priv); 
 			break;	
 			default:
-				LogPrint (eLogError, "Identity: Signing key type ", (int)m_Public->GetSigningKeyType (), " is not supported");
+				LogPrint (eLogError, "Identity: Signing key type ", (int)keyType, " is not supported");
 		}
+		return nullptr;
+	}
+
+	size_t PrivateKeys::GetSignatureLen () const
+	{
+		return IsOfflineSignature () ? m_TransientSignatureLen : m_Public->GetSignatureLen ();
 	}
 
 	uint8_t * PrivateKeys::GetPadding()
@@ -582,35 +687,7 @@ namespace data
 			PrivateKeys keys;
 			// signature
 			uint8_t signingPublicKey[512]; // signing public key is 512 bytes max
-			switch (type)
+			GenerateSigningKeyPair (type, keys.m_SigningPrivateKey, signingPublicKey);
-			{
-				case SIGNING_KEY_TYPE_ECDSA_SHA256_P256:
-					i2p::crypto::CreateECDSAP256RandomKeys (keys.m_SigningPrivateKey, signingPublicKey);
-				break;
-				case SIGNING_KEY_TYPE_ECDSA_SHA384_P384:
-					i2p::crypto::CreateECDSAP384RandomKeys (keys.m_SigningPrivateKey, signingPublicKey);
-				break;
-				case SIGNING_KEY_TYPE_ECDSA_SHA512_P521:
-					i2p::crypto::CreateECDSAP521RandomKeys (keys.m_SigningPrivateKey, signingPublicKey);
-				break;
-				case SIGNING_KEY_TYPE_RSA_SHA256_2048:
-				case SIGNING_KEY_TYPE_RSA_SHA384_3072:
-				case SIGNING_KEY_TYPE_RSA_SHA512_4096:
-					LogPrint (eLogWarning, "Identity: RSA signature type is not supported. Creating EdDSA");
-				// no break here
-				case SIGNING_KEY_TYPE_EDDSA_SHA512_ED25519:
-					i2p::crypto::CreateEDDSA25519RandomKeys (keys.m_SigningPrivateKey, signingPublicKey);
-				break;
-				case SIGNING_KEY_TYPE_GOSTR3410_CRYPTO_PRO_A_GOSTR3411_256:
-					i2p::crypto::CreateGOSTR3410RandomKeys (i2p::crypto::eGOSTR3410CryptoProA, keys.m_SigningPrivateKey, signingPublicKey);
-				break;
-				case SIGNING_KEY_TYPE_GOSTR3410_TC26_A_512_GOSTR3411_512:
-					i2p::crypto::CreateGOSTR3410RandomKeys (i2p::crypto::eGOSTR3410TC26A512, keys.m_SigningPrivateKey, signingPublicKey);
-				break;
-				default:
-					LogPrint (eLogWarning, "Identity: Signing key type ", (int)type, " is not supported. Create DSA-SHA1");
-					return PrivateKeys (i2p::data::CreateRandomKeys ()); // DSA-SHA1
-			}
 			// encryption
 			uint8_t publicKey[256];
 			GenerateCryptoKeyPair (cryptoType, keys.m_PrivateKey, publicKey);
@@ -623,6 +700,42 @@ namespace data
 		return PrivateKeys (i2p::data::CreateRandomKeys ()); // DSA-SHA1
 	}
 
+	void PrivateKeys::GenerateSigningKeyPair (SigningKeyType type, uint8_t * priv, uint8_t * pub)
+	{
+		switch (type)
+		{
+			case SIGNING_KEY_TYPE_ECDSA_SHA256_P256:
+				i2p::crypto::CreateECDSAP256RandomKeys (priv, pub);
+			break;
+			case SIGNING_KEY_TYPE_ECDSA_SHA384_P384:
+				i2p::crypto::CreateECDSAP384RandomKeys (priv, pub);
+			break;
+			case SIGNING_KEY_TYPE_ECDSA_SHA512_P521:
+				i2p::crypto::CreateECDSAP521RandomKeys (priv, pub);
+			break;
+			case SIGNING_KEY_TYPE_RSA_SHA256_2048:
+			case SIGNING_KEY_TYPE_RSA_SHA384_3072:
+			case SIGNING_KEY_TYPE_RSA_SHA512_4096:
+				LogPrint (eLogWarning, "Identity: RSA signature type is not supported. Creating EdDSA");
+			// no break here
+			case SIGNING_KEY_TYPE_EDDSA_SHA512_ED25519:
+				i2p::crypto::CreateEDDSA25519RandomKeys (priv, pub);
+			break;
+			case SIGNING_KEY_TYPE_GOSTR3410_CRYPTO_PRO_A_GOSTR3411_256:
+				i2p::crypto::CreateGOSTR3410RandomKeys (i2p::crypto::eGOSTR3410CryptoProA, priv, pub);
+			break;
+			case SIGNING_KEY_TYPE_GOSTR3410_TC26_A_512_GOSTR3411_512:
+				i2p::crypto::CreateGOSTR3410RandomKeys (i2p::crypto::eGOSTR3410TC26A512, priv, pub);
+			break;
+			case SIGNING_KEY_TYPE_REDDSA_SHA512_ED25519:
+				i2p::crypto::CreateRedDSA25519RandomKeys (priv, pub);
+			break;	
+			default:
+				LogPrint (eLogWarning, "Identity: Signing key type ", (int)type, " is not supported. Create DSA-SHA1");
+				i2p::crypto::CreateDSARandomKeys (priv, pub); // DSA-SHA1
+		}
+	}
+
 	void PrivateKeys::GenerateCryptoKeyPair (CryptoKeyType type, uint8_t * priv, uint8_t * pub)
 	{
 		switch (type)
@@ -642,6 +755,27 @@ namespace data
 		}
 	}
 
+	PrivateKeys PrivateKeys::CreateOfflineKeys (SigningKeyType type, uint32_t expires) const
+	{
+		PrivateKeys keys (*this);
+		std::unique_ptr<i2p::crypto::Verifier> verifier (IdentityEx::CreateVerifier (type));		
+		if (verifier)
+		{
+			size_t pubKeyLen = verifier->GetPublicKeyLen ();
+			keys.m_TransientSigningPrivateKeyLen = verifier->GetPrivateKeyLen ();
+			keys.m_TransientSignatureLen = verifier->GetSignatureLen ();
+			keys.m_OfflineSignature.resize (pubKeyLen + m_Public->GetSignatureLen () + 6);
+			htobe32buf (keys.m_OfflineSignature.data (), expires); // expires
+			htobe16buf (keys.m_OfflineSignature.data () + 4, type); // type
+			GenerateSigningKeyPair (type, keys.m_SigningPrivateKey, keys.m_OfflineSignature.data () + 6); // public  key
+			Sign (keys.m_OfflineSignature.data (), pubKeyLen + 6, keys.m_OfflineSignature.data () + 6 + pubKeyLen); // signature	
+			// recreate signer
+			keys.m_Signer = nullptr;
+			keys.CreateSigner (type);
+		}
+		return keys;
+	}
+
 	Keys CreateRandomKeys ()
 	{
 		Keys keys;
@@ -656,15 +790,7 @@ namespace data
 	{
 		uint8_t buf[41]; // ident + yyyymmdd
 		memcpy (buf, (const uint8_t *)ident, 32);
-		time_t t = time (nullptr);
+		i2p::util::GetCurrentDate ((char *)(buf + 32));
-		struct tm tm;
-#ifdef _WIN32
-		gmtime_s(&tm, &t);
-		sprintf_s((char *)(buf + 32), 9, "%04i%02i%02i", tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday);
-#else
-		gmtime_r(&t, &tm);
-		sprintf((char *)(buf + 32), "%04i%02i%02i", tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday);
-#endif
 		IdentHash key;
 		SHA256(buf, 40, key);
 		return key;

libi2pd/Identity.h

@@ -6,6 +6,7 @@
 #include <string>
 #include <memory>
 #include <atomic>
+#include <vector>
 #include "Base.h"
 #include "Signature.h"
 #include "CryptoKey.h"
@@ -66,9 +67,9 @@ namespace data
 	const uint16_t SIGNING_KEY_TYPE_RSA_SHA512_4096 = 6;
 	const uint16_t SIGNING_KEY_TYPE_EDDSA_SHA512_ED25519 = 7;
 	const uint16_t SIGNING_KEY_TYPE_EDDSA_SHA512_ED25519ph = 8; // not implemented
-	// following signature type should never appear in netid=2
 	const uint16_t SIGNING_KEY_TYPE_GOSTR3410_CRYPTO_PRO_A_GOSTR3411_256 = 9;
 	const uint16_t SIGNING_KEY_TYPE_GOSTR3410_TC26_A_512_GOSTR3411_512 = 10; // approved by FSB
+	const uint16_t SIGNING_KEY_TYPE_REDDSA_SHA512_ED25519 = 11; // for LeaseSet2 only
 
 	typedef uint16_t SigningKeyType;
 	typedef uint16_t CryptoKeyType;
@@ -99,6 +100,7 @@ namespace data
 			std::shared_ptr<i2p::crypto::CryptoKeyEncryptor> CreateEncryptor (const uint8_t * key) const;
 			size_t GetFullLen () const { return m_ExtendedLen + DEFAULT_IDENTITY_SIZE; };
 			size_t GetSigningPublicKeyLen () const;
+			const uint8_t * GetSigningPublicKeyBuffer () const; // returns NULL for P521
 			size_t GetSigningPrivateKeyLen () const;
 			size_t GetSignatureLen () const;
 			bool Verify (const uint8_t * buf, size_t len, const uint8_t * signature) const;
@@ -142,11 +144,13 @@ namespace data
 			std::shared_ptr<const IdentityEx> GetPublic () const { return m_Public; };
 			const uint8_t * GetPrivateKey () const { return m_PrivateKey; };
 			const uint8_t * GetSigningPrivateKey () const { return m_SigningPrivateKey; };
+			size_t GetSignatureLen () const; // might not match identity
+			bool IsOfflineSignature () const { return m_TransientSignatureLen > 0; };
     		uint8_t * GetPadding();
 			void RecalculateIdentHash(uint8_t * buf=nullptr) { m_Public->RecalculateIdentHash(buf); }
 			void Sign (const uint8_t * buf, int len, uint8_t * signature) const;
 
-			size_t GetFullLen () const { return m_Public->GetFullLen () + 256 + m_Public->GetSigningPrivateKeyLen (); };
+			size_t GetFullLen () const;
 			size_t FromBuffer (const uint8_t * buf, size_t len);
 			size_t ToBuffer (uint8_t * buf, size_t len) const;
 
@@ -157,18 +161,28 @@ namespace data
 
 			static std::shared_ptr<i2p::crypto::CryptoKeyDecryptor> CreateDecryptor (CryptoKeyType cryptoType, const uint8_t * key);
 			static PrivateKeys CreateRandomKeys (SigningKeyType type = SIGNING_KEY_TYPE_DSA_SHA1, CryptoKeyType cryptoType = CRYPTO_KEY_TYPE_ELGAMAL);
+			static void GenerateSigningKeyPair (SigningKeyType type, uint8_t * priv, uint8_t * pub); 
 			static void GenerateCryptoKeyPair (CryptoKeyType type, uint8_t * priv, uint8_t * pub); // priv and pub are 256 bytes long
+			static i2p::crypto::Signer * CreateSigner (SigningKeyType keyType, const uint8_t * priv);
+
+			// offline keys
+			PrivateKeys CreateOfflineKeys (SigningKeyType type, uint32_t expires) const; 
+			const std::vector<uint8_t>& GetOfflineSignature () const { return m_OfflineSignature; };
 
 		private:
 
 			void CreateSigner () const;
+			void CreateSigner (SigningKeyType keyType) const;
 
 		private:
 
 			std::shared_ptr<IdentityEx> m_Public;
 			uint8_t m_PrivateKey[256];
-			uint8_t m_SigningPrivateKey[1024]; // assume private key doesn't exceed 1024 bytes
+			uint8_t m_SigningPrivateKey[128]; // assume private key doesn't exceed 128 bytes
 			mutable std::unique_ptr<i2p::crypto::Signer> m_Signer;
+			std::vector<uint8_t> m_OfflineSignature; // non zero length, if applicable
+			size_t m_TransientSignatureLen = 0;
+			size_t m_TransientSigningPrivateKeyLen = 0;
 	};
 
 	// kademlia

libi2pd/LeaseSet.cpp

@@ -1,6 +1,10 @@
 #include <string.h>
+#include <openssl/sha.h>
+#include <openssl/hmac.h>
+#include <zlib.h> // for crc32
 #include "I2PEndian.h"
 #include "Crypto.h"
+#include "Ed25519.h"
 #include "Log.h"
 #include "Timestamp.h"
 #include "NetDb.hpp"
@@ -250,55 +254,195 @@ namespace data
 		memcpy (m_Buffer, buf, len);
 	}
 
+	BlindedPublicKey::BlindedPublicKey (std::shared_ptr<const IdentityEx> identity, SigningKeyType blindedKeyType):
+		m_BlindedSigType (blindedKeyType)
+	{
+		if (!identity) return;
+		auto len = identity->GetSigningPublicKeyLen ();
+		m_PublicKey.resize (len);
+		memcpy (m_PublicKey.data (), identity->GetSigningPublicKeyBuffer (), len);
+		m_SigType = identity->GetSigningKeyType ();
+	}
+
+	BlindedPublicKey::BlindedPublicKey (const std::string& b33)
+	{
+		uint8_t addr[40]; // TODO: define length from b33
+		size_t l = i2p::data::Base32ToByteStream (b33.c_str (), b33.length (), addr, 40);
+		uint32_t checksum = crc32 (0, addr + 3, l - 3); 
+		// checksum is Little Endian
+		addr[0] ^= checksum; addr[1] ^= (checksum >> 8); addr[2] ^= (checksum >> 16);  
+		uint8_t flag = addr[0];
+		size_t offset = 1;	
+		if (flag & 0x01) // two bytes signatures
+		{
+			m_SigType = bufbe16toh (addr + offset); offset += 2;
+			m_BlindedSigType = bufbe16toh (addr + offset); offset += 2;
+		}
+		else // one byte sig
+		{
+			m_SigType = addr[offset]; offset++;
+			m_BlindedSigType = addr[offset]; offset++;
+		}
+		std::unique_ptr<i2p::crypto::Verifier> blindedVerifier (i2p::data::IdentityEx::CreateVerifier (m_SigType));
+		if (blindedVerifier)
+		{
+			auto len = blindedVerifier->GetPublicKeyLen ();
+			if (offset + len <= l)
+			{
+				m_PublicKey.resize (len);
+				memcpy (m_PublicKey.data (), addr + offset, len);
+			}
+			else
+				LogPrint (eLogError, "LeaseSet2: public key in b33 address is too short for signature type ", (int)m_SigType);	
+		}
+		else
+			LogPrint (eLogError, "LeaseSet2: unknown signature type ", (int)m_SigType, " in b33");
+	}
+
+	std::string BlindedPublicKey::ToB33 () const
+	{
+		if (m_PublicKey.size () > 32) return ""; // assume 25519
+		uint8_t addr[35]; char str[60]; // TODO: define actual length
+		addr[0] = 0; // flags
+		addr[1] = m_SigType; // sig type
+		addr[2] = m_BlindedSigType; // blinded sig type
+		memcpy (addr + 3, m_PublicKey.data (), m_PublicKey.size ());
+		uint32_t checksum = crc32 (0, addr + 3, m_PublicKey.size ()); 
+		// checksum is Little Endian
+		addr[0] ^= checksum; addr[1] ^= (checksum >> 8); addr[2] ^= (checksum >> 16); 
+		auto l = ByteStreamToBase32 (addr, m_PublicKey.size () + 3, str, 60);
+		return std::string (str, str + l);
+	}
+
+	void BlindedPublicKey::GetCredential (uint8_t * credential) const
+	{
+		// A = destination's signing public key 
+		// stA = signature type of A, 2 bytes big endian
+		uint16_t stA = htobe16 (GetSigType ());
+		// stA1 = signature type of blinded A, 2 bytes big endian
+		uint16_t stA1 = htobe16 (GetBlindedSigType ());	
+		// credential = H("credential", A || stA || stA1)
+		H ("credential", { {GetPublicKey (), GetPublicKeyLen ()}, {(const uint8_t *)&stA, 2}, {(const uint8_t *)&stA1, 2} }, credential);
+	}
+
+	void BlindedPublicKey::GetSubcredential (const uint8_t * blinded, size_t len, uint8_t * subcredential) const
+	{
+		uint8_t credential[32];
+		GetCredential (credential);
+		// subcredential = H("subcredential", credential || blindedPublicKey)
+		H ("subcredential", { {credential, 32}, {blinded, len} }, subcredential);
+	}
+
+	void BlindedPublicKey::GenerateAlpha (const char * date, uint8_t * seed) const
+	{
+		uint16_t stA = htobe16 (GetSigType ()), stA1 = htobe16 (GetBlindedSigType ());
+		uint8_t salt[32];
+		//seed = HKDF(H("I2PGenerateAlpha", keydata), datestring || secret, "i2pblinding1", 64)	
+		H ("I2PGenerateAlpha", { {GetPublicKey (), GetPublicKeyLen ()}, {(const uint8_t *)&stA, 2}, {(const uint8_t *)&stA1, 2} }, salt);
+		i2p::crypto::HKDF (salt, (const uint8_t *)date, 8, "i2pblinding1", seed);
+	}
+
+	void BlindedPublicKey::GetBlindedKey (const char * date, uint8_t * blindedKey) const
+	{
+		uint8_t seed[64];	
+		GenerateAlpha (date, seed);	
+		i2p::crypto::GetEd25519 ()->BlindPublicKey (GetPublicKey (), seed, blindedKey);
+	}
+
+	void BlindedPublicKey::BlindPrivateKey (const uint8_t * priv, const char * date, uint8_t * blindedPriv, uint8_t * blindedPub) const
+	{
+		uint8_t seed[64];	
+		GenerateAlpha (date, seed);	
+		i2p::crypto::GetEd25519 ()->BlindPrivateKey (priv, seed, blindedPriv, blindedPub);
+	}
+
+	void BlindedPublicKey::H (const std::string& p, const std::vector<std::pair<const uint8_t *, size_t> >& bufs, uint8_t * hash) const 
+	{
+		SHA256_CTX ctx;
+		SHA256_Init (&ctx);
+		SHA256_Update (&ctx, p.c_str (), p.length ());
+		for (const auto& it: bufs)	
+			SHA256_Update (&ctx, it.first, it.second);
+		SHA256_Final (hash, &ctx);
+	}
+
+	i2p::data::IdentHash BlindedPublicKey::GetStoreHash (const char * date) const
+	{
+		i2p::data::IdentHash hash;
+		if (m_BlindedSigType == i2p::data::SIGNING_KEY_TYPE_REDDSA_SHA512_ED25519 ||
+			m_BlindedSigType == SIGNING_KEY_TYPE_EDDSA_SHA512_ED25519)
+		{
+			uint8_t blinded[32];
+			if (date)
+				GetBlindedKey (date, blinded);
+			else
+			{
+				char currentDate[9];
+				i2p::util::GetCurrentDate (currentDate);
+				GetBlindedKey (currentDate, blinded);	
+			}	
+			auto stA1 = htobe16 (m_BlindedSigType);
+			SHA256_CTX ctx;
+			SHA256_Init (&ctx);
+			SHA256_Update (&ctx, (const uint8_t *)&stA1, 2);
+			SHA256_Update (&ctx, blinded, 32);
+			SHA256_Final ((uint8_t *)hash, &ctx);
+		}
+		else
+			LogPrint (eLogError, "LeaseSet2: blinded key type ", (int)m_BlindedSigType, " is not supported");			
+		return hash;
+	}
+
 	LeaseSet2::LeaseSet2 (uint8_t storeType, const uint8_t * buf, size_t len, bool storeLeases):
-		LeaseSet (storeLeases), m_StoreType (storeType)
+		LeaseSet (storeLeases), m_StoreType (storeType), m_OrigStoreType (storeType)
 	{	
 		SetBuffer (buf, len);
 		if (storeType == NETDB_STORE_TYPE_ENCRYPTED_LEASESET2)
-			ReadFromBufferEncrypted (buf, len);
+			ReadFromBufferEncrypted (buf, len, nullptr);
 		else
 			ReadFromBuffer (buf, len);
 	}
 
-	void LeaseSet2::Update (const uint8_t * buf, size_t len, bool verifySignature)
+	LeaseSet2::LeaseSet2 (const uint8_t * buf, size_t len, std::shared_ptr<const BlindedPublicKey> key):
+		LeaseSet (true), m_StoreType (NETDB_STORE_TYPE_ENCRYPTED_LEASESET2), m_OrigStoreType (NETDB_STORE_TYPE_ENCRYPTED_LEASESET2)
 	{
-		// shouldn't be called for now. Must be called from NetDb::AddLeaseSet later
+		ReadFromBufferEncrypted (buf, len, key);
-		SetBuffer (buf, len);
-		// TODO:verify signature if requested		
 	}
 
-	void LeaseSet2::ReadFromBuffer (const uint8_t * buf, size_t len)
+	void LeaseSet2::Update (const uint8_t * buf, size_t len, bool verifySignature)
+	{	
+		SetBuffer (buf, len);
+		if (GetStoreType () != NETDB_STORE_TYPE_ENCRYPTED_LEASESET2)
+			ReadFromBuffer (buf, len, false, verifySignature);	
+		// TODO: implement encrypted
+	}
+		
+	void LeaseSet2::ReadFromBuffer (const uint8_t * buf, size_t len, bool readIdentity, bool verifySignature)
 	{
 		// standard LS2 header
-		auto identity = std::make_shared<IdentityEx>(buf, len);
+		std::shared_ptr<const IdentityEx> identity;
+		if (readIdentity)
+		{	
+			identity = std::make_shared<IdentityEx>(buf, len);
 			SetIdentity (identity);
+		}
+		else
+			identity = GetIdentity ();
 		size_t offset = identity->GetFullLen ();
 		if (offset + 8 >= len) return;
-		uint32_t timestamp = bufbe32toh (buf + offset); offset += 4; // published timestamp (seconds)
+		m_PublishedTimestamp = bufbe32toh (buf + offset); offset += 4; // published timestamp (seconds)
 		uint16_t expires = bufbe16toh (buf + offset); offset += 2; // expires (seconds)
-		SetExpirationTime ((timestamp + expires)*1000LL); // in milliseconds
+		SetExpirationTime ((m_PublishedTimestamp + expires)*1000LL); // in milliseconds
 		uint16_t flags = bufbe16toh (buf + offset); offset += 2; // flags
-		std::unique_ptr<i2p::crypto::Verifier> transientVerifier;
+		if (flags & LEASESET2_FLAG_OFFLINE_KEYS)
-		if (flags & 0x0001)
 		{
 			// transient key
-			if (offset + 6 >= len) return;
+			m_TransientVerifier = ProcessOfflineSignature (identity, buf, len, offset);
-			const uint8_t * signedData = buf + offset;
+			if (!m_TransientVerifier)
-			uint32_t expiresTimestamp = bufbe32toh (buf + offset); offset += 4; // expires timestamp
-			if (expiresTimestamp < i2p::util::GetSecondsSinceEpoch ())
 			{ 
-				LogPrint (eLogWarning, "LeaseSet2: transient key expired");
+				LogPrint (eLogError, "LeaseSet2: offline signature failed");
 				return;
 			}
-			uint16_t keyType = bufbe16toh (buf + offset); offset += 2;
-			transientVerifier.reset (i2p::data::IdentityEx::CreateVerifier (keyType));
-			if (!transientVerifier) return;
-			auto keyLen = transientVerifier->GetPublicKeyLen ();
-			if (offset + keyLen >= len) return;
-			transientVerifier->SetPublicKey (buf + offset); offset += keyLen;
-			if (offset + identity->GetSignatureLen () >= len) return;
-			if (!identity->Verify (signedData, keyLen + 6, buf + offset)) return;
-			offset += identity->GetSignatureLen ();
 		}
 		// type specific part
 		size_t s = 0;
@@ -315,11 +459,14 @@ namespace data
 		}
 		if (!s) return;
 		offset += s;
+		if (verifySignature || m_TransientVerifier)
+		{	
 			// verify signature
-		bool verified = transientVerifier ? VerifySignature (transientVerifier, buf, len, offset) :
+			bool verified = m_TransientVerifier ? VerifySignature (m_TransientVerifier, buf, len, offset) :
 				VerifySignature (identity, buf, len, offset);	
 			SetIsValid (verified);	
 		}
+	}
 
 	template<typename Verifier>
 	bool LeaseSet2::VerifySignature (Verifier& verifier, const uint8_t * buf, size_t len, size_t signatureOffset)
@@ -344,6 +491,7 @@ namespace data
 		offset += propertiesLen; // skip for now. TODO: implement properties
 		if (offset + 1 >= len) return 0;
 		// key sections
+		uint16_t currentKeyType = 0;
 		int numKeySections = buf[offset]; offset++;
 		for (int i = 0; i < numKeySections; i++)
 		{
@@ -351,10 +499,16 @@ namespace data
 			if (offset + 2 >= len) return 0;
 			uint16_t encryptionKeyLen = bufbe16toh (buf + offset); offset += 2; 
 			if (offset + encryptionKeyLen >= len) return 0;
-			if (!m_Encryptor && IsStoreLeases ()) // create encryptor with leases only, first key
+			if (IsStoreLeases ()) // create encryptor with leases only
 			{
+				// we pick first valid key, higher key type has higher priority 4-1-0
+				// if two keys with of the same type, pick first
 				auto encryptor = i2p::data::IdentityEx::CreateEncryptor (keyType, buf + offset);
+				if (encryptor && (!m_Encryptor || keyType > currentKeyType))
+				{
 					m_Encryptor = encryptor; // TODO: atomic
+					currentKeyType = keyType;
+				}
 			}
 			offset += encryptionKeyLen; 
 		}	
@@ -409,52 +563,100 @@ namespace data
 		return offset;
 	}
 
-	void LeaseSet2::ReadFromBufferEncrypted (const uint8_t * buf, size_t len)
+	void LeaseSet2::ReadFromBufferEncrypted (const uint8_t * buf, size_t len, std::shared_ptr<const BlindedPublicKey> key)
 	{
 		size_t offset = 0;
 		// blinded key
 		if (len < 2) return;
-		uint16_t blindedKeyType = bufbe16toh (buf + offset); offset += 2;
+		const uint8_t * stA1 = buf + offset; // stA1 = blinded signature type, 2 bytes big endian
+		uint16_t blindedKeyType = bufbe16toh (stA1); offset += 2;
 		std::unique_ptr<i2p::crypto::Verifier> blindedVerifier (i2p::data::IdentityEx::CreateVerifier (blindedKeyType));
 		if (!blindedVerifier) return;
 		auto blindedKeyLen = blindedVerifier->GetPublicKeyLen ();			
 		if (offset + blindedKeyLen >= len) return;
-		blindedVerifier->SetPublicKey (buf + offset); offset += blindedKeyLen;
+		const uint8_t * blindedPublicKey = buf + offset;
+		blindedVerifier->SetPublicKey (blindedPublicKey); offset += blindedKeyLen;
 		// expiration
 		if (offset + 8 >= len) return;
-		uint32_t timestamp = bufbe32toh (buf + offset); offset += 4; // published timestamp (seconds)
+		const uint8_t * publishedTimestamp = buf + offset;
+		m_PublishedTimestamp = bufbe32toh (publishedTimestamp); offset += 4; // published timestamp (seconds)
 		uint16_t expires = bufbe16toh (buf + offset); offset += 2; // expires (seconds)
-		SetExpirationTime ((timestamp + expires)*1000LL); // in milliseconds
+		SetExpirationTime ((m_PublishedTimestamp + expires)*1000LL); // in milliseconds
 		uint16_t flags = bufbe16toh (buf + offset); offset += 2; // flags
-		std::unique_ptr<i2p::crypto::Verifier> transientVerifier;
+		if (flags & LEASESET2_FLAG_OFFLINE_KEYS)
-		if (flags & 0x0001)
 		{
 			// transient key
-			if (offset + 6 >= len) return;
+			m_TransientVerifier = ProcessOfflineSignature (blindedVerifier, buf, len, offset);
-			const uint8_t * signedData = buf + offset;
+			if (!m_TransientVerifier) 
-			uint32_t expiresTimestamp = bufbe32toh (buf + offset); offset += 4; // expires timestamp
-			if (expiresTimestamp < i2p::util::GetSecondsSinceEpoch ())
 			{
-				LogPrint (eLogWarning, "LeaseSet2: transient key expired");
+				LogPrint (eLogError, "LeaseSet2: offline signature failed");
 				return;
 			}
-			uint16_t keyType = bufbe16toh (buf + offset); offset += 2;
-			transientVerifier.reset (i2p::data::IdentityEx::CreateVerifier (keyType));
-			if (!transientVerifier) return;
-			auto keyLen = transientVerifier->GetPublicKeyLen ();
-			if (offset + keyLen >= len) return;
-			transientVerifier->SetPublicKey (buf + offset); offset += keyLen;
-			if (offset + blindedVerifier->GetSignatureLen () >= len) return;
-			if (!blindedVerifier->Verify (signedData, keyLen + 6, buf + offset)) return;
-			offset += blindedVerifier->GetSignatureLen ();
 		}
 		// outer ciphertext
 		if (offset + 2 > len) return;
-		uint16_t lenOuterCiphertext = bufbe16toh (buf + offset); offset += 2 + lenOuterCiphertext;		
+		uint16_t lenOuterCiphertext = bufbe16toh (buf + offset); offset += 2;
+		const uint8_t * outerCiphertext = buf + offset;	
+		offset += lenOuterCiphertext;		
 		// verify signature
-		bool verified = transientVerifier ? VerifySignature (transientVerifier, buf, len, offset) :
+		bool verified = m_TransientVerifier ? VerifySignature (m_TransientVerifier, buf, len, offset) :
 			VerifySignature (blindedVerifier, buf, len, offset);	
 		SetIsValid (verified);
+		// handle ciphertext
+		if (verified && key && lenOuterCiphertext >= 32)
+		{
+			SetIsValid (false); // we must verify it again in Layer 2 
+			if (blindedKeyType == i2p::data::SIGNING_KEY_TYPE_REDDSA_SHA512_ED25519)
+			{
+				// verify blinding
+				char date[9];
+				i2p::util::GetDateString (m_PublishedTimestamp, date);
+				uint8_t blinded[32];
+				key->GetBlindedKey (date, blinded);
+				if (memcmp (blindedPublicKey, blinded, 32))
+				{
+					LogPrint (eLogError, "LeaseSet2: blinded public key doesn't match");
+					return;
+				}	
+			}	
+			// outer key
+			// outerInput = subcredential || publishedTimestamp
+			uint8_t subcredential[36];
+			key->GetSubcredential (blindedPublicKey, blindedKeyLen, subcredential);
+			memcpy (subcredential + 32, publishedTimestamp, 4);
+			// outerSalt = outerCiphertext[0:32]
+			// keys = HKDF(outerSalt, outerInput, "ELS2_L1K", 44)
+			uint8_t keys[64]; // 44 bytes actual data
+			i2p::crypto::HKDF (outerCiphertext, subcredential, 36, "ELS2_L1K", keys);
+			// decrypt Layer 1
+			// outerKey = keys[0:31]
+			// outerIV = keys[32:43]
+			size_t lenOuterPlaintext = lenOuterCiphertext - 32;
+			std::vector<uint8_t> outerPlainText (lenOuterPlaintext);
+			i2p::crypto::ChaCha20 (outerCiphertext + 32, lenOuterPlaintext, keys, keys + 32, outerPlainText.data ());
+			// inner key
+			// innerInput = authCookie || subcredential || publishedTimestamp, TODO: non-empty authCookie
+			// innerSalt = innerCiphertext[0:32]
+			// keys = HKDF(innerSalt, innerInput, "ELS2_L2K", 44)
+			// skip 1 byte flags
+			i2p::crypto::HKDF (outerPlainText.data () + 1, subcredential, 36, "ELS2_L2K", keys); // no authCookie
+			// decrypt Layer 2
+			// innerKey = keys[0:31]
+			// innerIV = keys[32:43]
+			size_t lenInnerPlaintext = lenOuterPlaintext - 32 - 1;
+			std::vector<uint8_t> innerPlainText (lenInnerPlaintext);
+			i2p::crypto::ChaCha20 (outerPlainText.data () + 32 + 1, lenInnerPlaintext, keys, keys + 32, innerPlainText.data ());
+			if (innerPlainText[0] == NETDB_STORE_TYPE_STANDARD_LEASESET2 || innerPlainText[0] == NETDB_STORE_TYPE_META_LEASESET2)
+			{
+				// override store type and buffer
+				m_StoreType = innerPlainText[0]; 
+				SetBuffer (innerPlainText.data () + 1, lenInnerPlaintext - 1);
+				// parse and verify Layer 2
+				ReadFromBuffer (innerPlainText.data () + 1, lenInnerPlaintext - 1);
+			}
+			else
+				LogPrint (eLogError, "LeaseSet2: unexpected LeaseSet type ", (int)innerPlainText[0], " inside encrypted LeaseSet");
+		}	
 	}
 
 	void LeaseSet2::Encrypt (const uint8_t * data, uint8_t * encrypted, BN_CTX * ctx) const
@@ -586,16 +788,24 @@ namespace data
 		return ident.Verify(ptr, leases - ptr, leases);
 	}
 
-	LocalLeaseSet2::LocalLeaseSet2 (uint8_t storeType, std::shared_ptr<const IdentityEx> identity, 
+	LocalLeaseSet2::LocalLeaseSet2 (uint8_t storeType, const i2p::data::PrivateKeys& keys, 
 		uint16_t keyType, uint16_t keyLen, const uint8_t * encryptionPublicKey, 
 		std::vector<std::shared_ptr<i2p::tunnel::InboundTunnel> > tunnels):
-		LocalLeaseSet (identity, nullptr, 0)
+		LocalLeaseSet (keys.GetPublic (), nullptr, 0)
 	{
+		auto identity = keys.GetPublic ();
 		// assume standard LS2 
 		int num = tunnels.size ();
 		if (num > MAX_NUM_LEASES) num = MAX_NUM_LEASES;
 		m_BufferLen = identity->GetFullLen () + 4/*published*/ + 2/*expires*/ + 2/*flag*/ + 2/*properties len*/ +
-			1/*num keys*/ + 2/*key type*/ + 2/*key len*/ + keyLen/*key*/ + 1/*num leases*/ + num*LEASE2_SIZE + identity->GetSignatureLen ();
+			1/*num keys*/ + 2/*key type*/ + 2/*key len*/ + keyLen/*key*/ + 1/*num leases*/ + num*LEASE2_SIZE + keys.GetSignatureLen ();
+		uint16_t flags = 0;
+		if (keys.IsOfflineSignature ()) 
+		{
+			flags |= LEASESET2_FLAG_OFFLINE_KEYS;
+			m_BufferLen += keys.GetOfflineSignature ().size ();	
+		}
+
 		m_Buffer = new uint8_t[m_BufferLen + 1];
 		m_Buffer[0] = storeType;	
 		// LS2 header
@@ -603,7 +813,14 @@ namespace data
 		auto timestamp = i2p::util::GetSecondsSinceEpoch ();
 		htobe32buf (m_Buffer + offset, timestamp); offset += 4; // published timestamp (seconds)
 		uint8_t * expiresBuf = m_Buffer + offset; offset += 2; // expires, fill later
-		htobe16buf (m_Buffer + offset, 0); offset += 2; // flags
+		htobe16buf (m_Buffer + offset, flags); offset += 2; // flags
+		if (keys.IsOfflineSignature ())
+		{
+			// offline signature
+			const auto& offlineSignature = keys.GetOfflineSignature ();
+			memcpy (m_Buffer + offset, offlineSignature.data (), offlineSignature.size ());
+			offset += offlineSignature.size ();
+		}
 		htobe16buf (m_Buffer + offset, 0); offset += 2; // properties len
 		// keys	
 		m_Buffer[offset] = 1; offset++; // 1 key
@@ -628,7 +845,89 @@ namespace data
 		SetExpirationTime (expirationTime*1000LL);	
 		auto expires = expirationTime - timestamp;
 		htobe16buf (expiresBuf, expires > 0 ? expires : 0);	
-		//  we don't sign it yet. must be signed later on
+		// sign
-	}
+		keys.Sign (m_Buffer, offset, m_Buffer + offset); // LS + leading store type
+	}
+
+	LocalLeaseSet2::LocalLeaseSet2 (uint8_t storeType, std::shared_ptr<const IdentityEx> identity, const uint8_t * buf, size_t len):
+		LocalLeaseSet (identity, nullptr, 0)
+	{
+		m_BufferLen = len;
+		m_Buffer = new uint8_t[m_BufferLen + 1];
+		memcpy (m_Buffer + 1, buf, len);
+		m_Buffer[0] = storeType;
+	}
+
+	LocalEncryptedLeaseSet2::LocalEncryptedLeaseSet2 (std::shared_ptr<const LocalLeaseSet2> ls, const i2p::data::PrivateKeys& keys, i2p::data::SigningKeyType blindedKeyType):
+		LocalLeaseSet2 (ls->GetIdentity ()), m_InnerLeaseSet (ls)
+	{
+		size_t lenInnerPlaintext = ls->GetBufferLen () + 1, lenOuterPlaintext = lenInnerPlaintext + 32 + 1,
+			lenOuterCiphertext = lenOuterPlaintext + 32;
+		m_BufferLen = 2/*blinded sig type*/ + 32/*blinded pub key*/ + 4/*published*/ + 2/*expires*/ + 2/*flags*/ + 2/*lenOuterCiphertext*/ + lenOuterCiphertext + 64/*signature*/;
+		m_Buffer = new uint8_t[m_BufferLen + 1]; 
+		m_Buffer[0] = NETDB_STORE_TYPE_ENCRYPTED_LEASESET2;
+		BlindedPublicKey blindedKey (ls->GetIdentity ());
+		auto timestamp = i2p::util::GetSecondsSinceEpoch ();	
+		char date[9];
+		i2p::util::GetDateString (timestamp, date);
+		uint8_t blindedPriv[32], blindedPub[32];
+		blindedKey.BlindPrivateKey (keys.GetSigningPrivateKey (), date, blindedPriv, blindedPub);
+		std::unique_ptr<i2p::crypto::Signer> blindedSigner (i2p::data::PrivateKeys::CreateSigner (blindedKeyType, blindedPriv));
+		auto offset = 1;
+		htobe16buf (m_Buffer + offset, blindedKeyType); offset += 2; // Blinded Public Key Sig Type
+		memcpy (m_Buffer + offset, blindedPub, 32); offset += 32; // Blinded Public Key
+		htobe32buf (m_Buffer + offset, timestamp); offset += 4; // published timestamp (seconds)
+		auto nextMidnight = (timestamp/86400LL + 1)*86400LL; // 86400 = 24*3600 seconds
+		auto expirationTime = ls->GetExpirationTime ()/1000LL; 
+		if (expirationTime > nextMidnight) expirationTime = nextMidnight;
+		SetExpirationTime (expirationTime*1000LL);
+		htobe16buf (m_Buffer + offset, expirationTime > timestamp ? expirationTime - timestamp : 0); offset += 2; // expires
+		uint16_t flags = 0;
+		htobe16buf (m_Buffer + offset, flags); offset += 2; // flags	
+		htobe16buf (m_Buffer + offset, lenOuterCiphertext); offset += 2; // lenOuterCiphertext
+		// outerChipherText
+		// Layer 1	
+		uint8_t subcredential[36];
+		blindedKey.GetSubcredential (blindedPub, 32, subcredential);
+		htobe32buf (subcredential + 32, timestamp); // outerInput = subcredential || publishedTimestamp
+		// keys = HKDF(outerSalt, outerInput, "ELS2_L1K", 44)
+		uint8_t keys1[64]; // 44 bytes actual data
+		RAND_bytes (m_Buffer + offset, 32); // outerSalt = CSRNG(32)	
+		i2p::crypto::HKDF (m_Buffer + offset, subcredential, 36, "ELS2_L1K", keys1);
+		offset += 32; // outerSalt
+		uint8_t * outerPlainText = m_Buffer + offset;	
+		m_Buffer[offset] = 0; offset++; // flag
+		// Layer 2
+		// keys = HKDF(outerSalt, outerInput, "ELS2_L2K", 44)
+		uint8_t keys2[64]; // 44 bytes actual data
+		RAND_bytes (m_Buffer + offset, 32); // innerSalt = CSRNG(32)	
+		i2p::crypto::HKDF (m_Buffer + offset, subcredential, 36, "ELS2_L2K", keys2);
+		offset += 32; // innerSalt 
+		m_Buffer[offset] = ls->GetStoreType (); 
+		memcpy (m_Buffer + offset + 1, ls->GetBuffer (), ls->GetBufferLen ());
+		i2p::crypto::ChaCha20 (m_Buffer + offset, lenInnerPlaintext, keys2, keys2 + 32, m_Buffer + offset); // encrypt Layer 2
+		offset += lenInnerPlaintext;
+		i2p::crypto::ChaCha20 (outerPlainText, lenOuterPlaintext, keys1, keys1 + 32, outerPlainText); // encrypt Layer 1
+		// signature
+		blindedSigner->Sign (m_Buffer, offset, m_Buffer + offset);
+		// store hash
+		m_StoreHash = blindedKey.GetStoreHash (date);		
+	}
+
+	LocalEncryptedLeaseSet2::LocalEncryptedLeaseSet2 (std::shared_ptr<const IdentityEx> identity, const uint8_t * buf, size_t len):
+		LocalLeaseSet2 (NETDB_STORE_TYPE_ENCRYPTED_LEASESET2, identity, buf, len) 
+	{
+		// fill inner LeaseSet2 
+		auto blindedKey = std::make_shared<BlindedPublicKey>(identity);	
+		i2p::data::LeaseSet2 ls (buf, len, blindedKey); // inner layer
+		if (ls.IsValid ())
+		{
+			m_InnerLeaseSet = std::make_shared<LocalLeaseSet2>(ls.GetStoreType (), identity, ls.GetBuffer (), ls.GetBufferLen ());
+			m_StoreHash = blindedKey->GetStoreHash ();
+		}
+		else
+			LogPrint (eLogError, "LeaseSet2: couldn't extract inner layer");			
+	}
+	
 }
 }

libi2pd/LeaseSet.h

@@ -8,6 +8,7 @@
 #include <memory>
 #include "Identity.h"
 #include "Timestamp.h"
+#include "I2PEndian.h"
 
 namespace i2p
 {
@@ -25,7 +26,7 @@ namespace data
 		IdentHash tunnelGateway;
 		uint32_t tunnelID;
 		uint64_t endDate; // 0 means invalid
-		bool isUpdated; // trasient
+		bool isUpdated; // transient
 		/* return true if this lease expires within t millisecond + fudge factor */
 		bool ExpiresWithin( const uint64_t t, const uint64_t fudge = 1000 ) const {
 			auto expire = i2p::util::GetMillisecondsSinceEpoch ();
@@ -77,6 +78,9 @@ namespace data
 			bool operator== (const LeaseSet& other) const
 			{ return m_BufferLen == other.m_BufferLen && !memcmp (m_Buffer, other.m_Buffer, m_BufferLen); };
 			virtual uint8_t GetStoreType () const { return NETDB_STORE_TYPE_LEASESET; };
+			virtual uint8_t GetOrigStoreType () const { return NETDB_STORE_TYPE_LEASESET; };
+			virtual uint32_t GetPublishedTimestamp () const { return 0; }; // should be set for LeaseSet2 only
+			virtual std::shared_ptr<const i2p::crypto::Verifier> GetTransientVerifier () const { return nullptr; };		  
 
 			// implements RoutingDestination
 			std::shared_ptr<const IdentityEx> GetIdentity () const { return m_Identity; };
@@ -122,12 +126,49 @@ namespace data
 	const uint8_t NETDB_STORE_TYPE_STANDARD_LEASESET2 = 3;
 	const uint8_t NETDB_STORE_TYPE_ENCRYPTED_LEASESET2 = 5;
 	const uint8_t NETDB_STORE_TYPE_META_LEASESET2 = 7;
+
+	const uint16_t LEASESET2_FLAG_OFFLINE_KEYS = 0x0001;
+
+	class BlindedPublicKey // for encrypted LS2
+	{
+		public:
+
+			BlindedPublicKey (std::shared_ptr<const IdentityEx> identity, SigningKeyType blindedKeyType = i2p::data::SIGNING_KEY_TYPE_REDDSA_SHA512_ED25519);
+			BlindedPublicKey (const std::string& b33); // from b33 without .b32.i2p			
+			std::string ToB33 () const;
+
+			const uint8_t * GetPublicKey () const { return m_PublicKey.data (); };
+			size_t GetPublicKeyLen () const { return m_PublicKey.size (); };
+			SigningKeyType GetSigType () const  { return m_SigType; };
+			SigningKeyType GetBlindedSigType () const  { return m_BlindedSigType; };
+
+			void GetSubcredential (const uint8_t * blinded, size_t len, uint8_t * subcredential) const; // 32 bytes
+			void GetBlindedKey (const char * date, uint8_t * blindedKey) const; // blinded key 32 bytes, date is 8 chars "YYYYMMDD" 
+			void BlindPrivateKey (const uint8_t * priv, const char * date, uint8_t * blindedPriv, uint8_t * blindedPub) const; // blinded key 32 bytes, date is 8 chars "YYYYMMDD" 
+			i2p::data::IdentHash GetStoreHash (const char * date = nullptr) const; // date is 8 chars "YYYYMMDD", use current if null
+
+		private:
+
+			void GetCredential (uint8_t * credential) const; // 32 bytes
+			void GenerateAlpha (const char * date, uint8_t * seed) const; // 64 bytes, date is 8 chars "YYYYMMDD" 
+			void H (const std::string& p, const std::vector<std::pair<const uint8_t *, size_t> >& bufs, uint8_t * hash) const;
+
+		private:
+
+			std::vector<uint8_t> m_PublicKey;
+			i2p::data::SigningKeyType m_SigType, m_BlindedSigType;
+	};
+	
 	class LeaseSet2: public LeaseSet
 	{
 		public:
 
 			LeaseSet2 (uint8_t storeType, const uint8_t * buf, size_t len,  bool storeLeases = true);
+			LeaseSet2 (const uint8_t * buf, size_t len, std::shared_ptr<const BlindedPublicKey> key); // store type 5, called from local netdb only
 			uint8_t GetStoreType () const { return m_StoreType; };
+			uint8_t GetOrigStoreType () const { return m_OrigStoreType; };
+			uint32_t GetPublishedTimestamp () const { return m_PublishedTimestamp; };
+			std::shared_ptr<const i2p::crypto::Verifier> GetTransientVerifier () const { return m_TransientVerifier; };
 			void Update (const uint8_t * buf, size_t len, bool verifySignature);
 
 			// implements RoutingDestination
@@ -135,8 +176,8 @@ namespace data
 
 		private:
 
-			void ReadFromBuffer (const uint8_t * buf, size_t len);
+			void ReadFromBuffer (const uint8_t * buf, size_t len, bool readIdentity = true, bool verifySignature = true);
-			void ReadFromBufferEncrypted (const uint8_t * buf, size_t len);
+			void ReadFromBufferEncrypted (const uint8_t * buf, size_t len, std::shared_ptr<const BlindedPublicKey> key);
 			size_t ReadStandardLS2TypeSpecificPart (const uint8_t * buf, size_t len);
 			size_t ReadMetaLS2TypeSpecificPart (const uint8_t * buf, size_t len);
 
@@ -147,10 +188,33 @@ namespace data
 
 		private:
 
-			uint8_t m_StoreType;
+			uint8_t m_StoreType, m_OrigStoreType;  
+			uint32_t m_PublishedTimestamp = 0;
+			std::shared_ptr<i2p::crypto::Verifier> m_TransientVerifier;
 			std::shared_ptr<i2p::crypto::CryptoKeyEncryptor> m_Encryptor; // for standardLS2
 	};
 
+	// also called from Streaming.cpp 	
+	template<typename Verifier>
+	std::shared_ptr<i2p::crypto::Verifier> ProcessOfflineSignature (const Verifier& verifier, const uint8_t * buf, size_t len, size_t& offset)
+	{
+		if (offset + 6 >= len) return nullptr;
+		const uint8_t * signedData = buf + offset;
+		uint32_t expiresTimestamp = bufbe32toh (buf + offset); offset += 4; // expires timestamp
+		if (expiresTimestamp < i2p::util::GetSecondsSinceEpoch ()) return nullptr;
+		uint16_t keyType = bufbe16toh (buf + offset); offset += 2;
+		std::shared_ptr<i2p::crypto::Verifier> transientVerifier (i2p::data::IdentityEx::CreateVerifier (keyType));
+		if (!transientVerifier) return nullptr;
+		auto keyLen = transientVerifier->GetPublicKeyLen ();
+		if (offset + keyLen >= len) return nullptr;
+		transientVerifier->SetPublicKey (buf + offset); offset += keyLen;
+		if (offset + verifier->GetSignatureLen () >= len) return nullptr;
+		if (!verifier->Verify (signedData, keyLen + 6, buf + offset)) return nullptr;
+		offset += verifier->GetSignatureLen ();	
+		return transientVerifier;
+	}
+
+//------------------------------------------------------------------------------------
 	class LocalLeaseSet
 	{
 		public:
@@ -166,6 +230,7 @@ namespace data
 			uint8_t * GetLeases () { return m_Leases; };
 
 			const IdentHash& GetIdentHash () const { return m_Identity->GetIdentHash (); };
+			std::shared_ptr<const IdentityEx> GetIdentity () const { return m_Identity; };
 			bool IsExpired () const;
 			uint64_t GetExpirationTime () const { return m_ExpirationTime; };
 			void SetExpirationTime (uint64_t expirationTime) { m_ExpirationTime = expirationTime; };
@@ -173,6 +238,8 @@ namespace data
 			{ return GetBufferLen () == other.GetBufferLen () && !memcmp (GetBuffer (), other.GetBuffer (), GetBufferLen ()); };
 
 			virtual uint8_t GetStoreType () const { return NETDB_STORE_TYPE_LEASESET; };
+			virtual const IdentHash& GetStoreHash () const { return GetIdentHash (); }; // differ from ident hash for encrypted LeaseSet2
+			virtual std::shared_ptr<const LocalLeaseSet> GetInnerLeaseSet () const { return nullptr; }; // non-null for encrypted LeaseSet2
 
 		private:
 
@@ -186,9 +253,11 @@ namespace data
 	{
 		public:
 
-			LocalLeaseSet2 (uint8_t storeType, std::shared_ptr<const IdentityEx> identity, 
+			LocalLeaseSet2 (uint8_t storeType, const i2p::data::PrivateKeys& keys, 
 				uint16_t keyType, uint16_t keyLen, const uint8_t * encryptionPublicKey, 
 				std::vector<std::shared_ptr<i2p::tunnel::InboundTunnel> > tunnels);
+			LocalLeaseSet2 (uint8_t storeType, std::shared_ptr<const IdentityEx> identity, const uint8_t * buf, size_t len);	// from I2CP
+		
 			virtual ~LocalLeaseSet2 () { delete[] m_Buffer; };
 			
 			uint8_t * GetBuffer () const { return m_Buffer + 1; };
@@ -196,11 +265,32 @@ namespace data
 
 			uint8_t GetStoreType () const { return m_Buffer[0]; };
 
-		private:
+		protected:
+
+			LocalLeaseSet2 (std::shared_ptr<const IdentityEx> identity): LocalLeaseSet (identity, nullptr, 0), m_Buffer (nullptr), m_BufferLen(0) {}; // called from LocalEncryptedLeaseSet2
+
+		protected:
 
 			uint8_t * m_Buffer; // 1 byte store type + actual buffer
 			size_t m_BufferLen;
 	};
+
+	class LocalEncryptedLeaseSet2: public LocalLeaseSet2
+	{
+		public:
+
+			LocalEncryptedLeaseSet2 (std::shared_ptr<const LocalLeaseSet2> ls, const i2p::data::PrivateKeys& keys, i2p::data::SigningKeyType blindedKeyType = i2p::data::SIGNING_KEY_TYPE_REDDSA_SHA512_ED25519); 
+
+			LocalEncryptedLeaseSet2 (std::shared_ptr<const IdentityEx> identity, const uint8_t * buf, size_t len); // from I2CP
+
+			const IdentHash& GetStoreHash () const { return m_StoreHash; };
+			std::shared_ptr<const LocalLeaseSet> GetInnerLeaseSet () const { return m_InnerLeaseSet; };
+
+		private:
+
+			IdentHash m_StoreHash;
+			std::shared_ptr<const LocalLeaseSet2> m_InnerLeaseSet;
+	};
 }
 }
 

libi2pd/NTCP2.cpp

@@ -690,7 +690,7 @@ namespace transport
 					}
 					if (memcmp (addr->ntcp2->staticKey, m_Establisher->m_RemoteStaticKey, 32))
 					{
-						LogPrint (eLogError, "NTCP2: Static key mistmatch in SessionConfirmed");				
+						LogPrint (eLogError, "NTCP2: Static key mismatch in SessionConfirmed");				
 						SendTerminationAndTerminate (eNTCP2IncorrectSParameter);				
 						return;
 					}
@@ -783,7 +783,7 @@ namespace transport
 				size_t moreBytes = m_Socket.available(ec);
 				if (!ec && moreBytes >= m_NextReceivedLen)
 				{
-					// read and process messsage immediately if avaliable
+					// read and process message immediately if available
 					moreBytes = boost::asio::read (m_Socket, boost::asio::buffer(m_NextReceivedBuffer, m_NextReceivedLen), boost::asio::transfer_all (), ec);
 					HandleReceived (ec, moreBytes);
 				}
@@ -887,7 +887,7 @@ namespace transport
 						Terminate ();
 					}
 					else
-						LogPrint (eLogWarning, "NTCP2: Unexpected temination block size ", size);
+						LogPrint (eLogWarning, "NTCP2: Unexpected termination block size ", size);
 				break;
 				case eNTCP2BlkPadding:
 					LogPrint (eLogDebug, "NTCP2: padding");
@@ -935,7 +935,7 @@ namespace transport
 			htobe16buf (buf + 1, len); // size
 			len += 3; 	
 			totalLen += len;		
-			encryptBufs.push_back (std::make_pair (buf, len));
+			encryptBufs.push_back ( {buf, len} );
 			if (&it == &msgs.front ()) // first message
 			{
 				// allocate two bytes for length
@@ -949,7 +949,7 @@ namespace transport
 				auto paddingLen = CreatePaddingBlock (totalLen, buf + len, it->maxLen - it->len - 16);
 				if (paddingLen)
 				{
-					encryptBufs.push_back (std::make_pair (buf + len, paddingLen));
+					encryptBufs.push_back ( {buf + len, paddingLen} );
 					len += paddingLen;
 					totalLen += paddingLen;
 				}
@@ -969,7 +969,7 @@ namespace transport
 			auto paddingLen = CreatePaddingBlock (totalLen, m_NextSendBuffer, 287 - 16);
 			// and padding block to encrypt and send
 			if (paddingLen)
-				encryptBufs.push_back (std::make_pair (m_NextSendBuffer, paddingLen));			
+				encryptBufs.push_back ( {m_NextSendBuffer, paddingLen} );			
 			bufs.push_back (boost::asio::buffer (m_NextSendBuffer, paddingLen + 16));
 			macBuf = m_NextSendBuffer + paddingLen;
 			totalLen += paddingLen;		
@@ -1001,7 +1001,7 @@ namespace transport
 		// encrypt
 		uint8_t nonce[12];
 		CreateNonce (m_SendSequenceNumber, nonce); m_SendSequenceNumber++;
-		i2p::crypto::AEADChaCha20Poly1305Encrypt ({std::make_pair (m_NextSendBuffer + 2, payloadLen)}, m_SendKey, nonce, m_NextSendBuffer + payloadLen + 2);	
+		i2p::crypto::AEADChaCha20Poly1305Encrypt ({ {m_NextSendBuffer + 2, payloadLen} }, m_SendKey, nonce, m_NextSendBuffer + payloadLen + 2);	
 		SetNextSentFrameLength (payloadLen + 16, m_NextSendBuffer);
 		// send
 		m_IsSending = true;	
@@ -1180,6 +1180,7 @@ namespace transport
 						{
 							m_NTCP2V6Acceptor->open (boost::asio::ip::tcp::v6());
 							m_NTCP2V6Acceptor->set_option (boost::asio::ip::v6_only (true));
+							m_NTCP2V6Acceptor->set_option (boost::asio::socket_base::reuse_address (true));
 							m_NTCP2V6Acceptor->bind (boost::asio::ip::tcp::endpoint(boost::asio::ip::tcp::v6(), address->port));
 							m_NTCP2V6Acceptor->listen ();
 

libi2pd/NTCPSession.cpp

@@ -843,6 +843,7 @@ namespace transport
 							{
 								m_NTCPV6Acceptor->open (boost::asio::ip::tcp::v6());
 								m_NTCPV6Acceptor->set_option (boost::asio::ip::v6_only (true));
+								m_NTCPV6Acceptor->set_option (boost::asio::socket_base::reuse_address (true));
 								m_NTCPV6Acceptor->bind (boost::asio::ip::tcp::endpoint(boost::asio::ip::tcp::v6(), address->port));
 								m_NTCPV6Acceptor->listen ();
 
@@ -1286,7 +1287,7 @@ namespace transport
 				if (it.second->IsTerminationTimeoutExpired (ts))
 				{
 					auto session = it.second;
-					// Termniate modifies m_NTCPSession, so we postpone it
+					// Terminate modifies m_NTCPSession, so we postpone it
 					m_Service.post ([session] {
 							LogPrint (eLogDebug, "NTCP: No activity for ", session->GetTerminationTimeout (), " seconds");
 							session->Terminate ();

libi2pd/NetDb.cpp

@@ -207,9 +207,18 @@ namespace data
 		{
 			if (r->IsNewer (buf, len))
 			{
+				bool wasFloodfill = r->IsFloodfill ();
 				r->Update (buf, len);
 				LogPrint (eLogInfo, "NetDb: RouterInfo updated: ", ident.ToBase64());
-				// TODO: check if floodfill has been changed
+				if (wasFloodfill != r->IsFloodfill ()) // if floodfill status updated
+				{
+					LogPrint (eLogDebug, "NetDb: RouterInfo floodfill status updated: ", ident.ToBase64());
+					std::unique_lock<std::mutex> l(m_FloodfillsMutex);
+					if (wasFloodfill)
+						m_Floodfills.remove (r);	
+					else	
+						m_Floodfills.push_back (r);
+				}	
 			}
 			else
 			{
@@ -220,7 +229,7 @@ namespace data
 		else
 		{
 			r = std::make_shared<RouterInfo> (buf, len);
-			if (!r->IsUnreachable ())
+			if (!r->IsUnreachable () && r->HasValidAddresses ())
 			{
 				bool inserted = false;
 				{
@@ -291,11 +300,23 @@ namespace data
 	bool NetDb::AddLeaseSet2 (const IdentHash& ident, const uint8_t * buf, int len, uint8_t storeType)
 	{
 		std::unique_lock<std::mutex> lock(m_LeaseSetsMutex);
-		// always new LS2 for now. TODO: implement update
 		auto leaseSet = std::make_shared<LeaseSet2> (storeType, buf, len, false); // we don't need leases in netdb
+		if (leaseSet->IsValid ())
+		{
+			auto it = m_LeaseSets.find(ident);
+			if (it == m_LeaseSets.end () || it->second->GetStoreType () != storeType ||
+				leaseSet->GetPublishedTimestamp () > it->second->GetPublishedTimestamp ())
+			{
+				// TODO: implement actual update
+				LogPrint (eLogInfo, "NetDb: LeaseSet2 updated: ", ident.ToBase32());
 				m_LeaseSets[ident] = leaseSet;
 				return true;
 			}
+		}
+		else
+			LogPrint (eLogError, "NetDb: new LeaseSet2 validation failed: ", ident.ToBase32());
+		return false;
+	}
 
 	std::shared_ptr<RouterInfo> NetDb::FindRouter (const IdentHash& ident) const
 	{
@@ -319,6 +340,9 @@ namespace data
 
 	std::shared_ptr<RouterProfile> NetDb::FindRouterProfile (const IdentHash& ident) const
 	{
+		if (!m_PersistProfiles)
+			return nullptr;
+
 		auto router = FindRouter (ident);
 		return router ? router->GetProfile () : nullptr;
 	}
@@ -352,7 +376,7 @@ namespace data
 				}
 				m_FloodfillBootstrap = ri;
 				ReseedFromFloodfill(*ri);
-				// don't try reseed servers if trying to boostrap from floodfill
+				// don't try reseed servers if trying to bootstrap from floodfill
 				return;
 			}
 		}
@@ -418,7 +442,8 @@ namespace data
 
 	void NetDb::VisitStoredRouterInfos(RouterInfoVisitor v)
 	{
-		m_Storage.Iterate([v] (const std::string & filename) {
+		m_Storage.Iterate([v] (const std::string & filename)
+		{
 			auto ri = std::make_shared<i2p::data::RouterInfo>(filename);
 				v(ri);
 		});
@@ -555,11 +580,11 @@ namespace data
 					++it;
 				}
 			}
-			// clean up expired floodfiils
+			// clean up expired floodfills or not floodfills anymore
 			{
 				std::unique_lock<std::mutex> l(m_FloodfillsMutex);
 				for (auto it = m_Floodfills.begin (); it != m_Floodfills.end ();)
-					if ((*it)->IsUnreachable ())
+					if ((*it)->IsUnreachable () || !(*it)->IsFloodfill ())
 						it = m_Floodfills.erase (it);
 					else
 						++it;
@@ -1218,7 +1243,7 @@ namespace data
 		{
 			if (!it->second->IsValid () || ts > it->second->GetExpirationTime () - LEASE_ENDDATE_THRESHOLD)
 			{
-				LogPrint (eLogInfo, "NetDb: LeaseSet ", it->second->GetIdentHash ().ToBase64 (), " expired or invalid");
+				LogPrint (eLogInfo, "NetDb: LeaseSet ", it->first.ToBase64 (), " expired or invalid");
 				it = m_LeaseSets.erase (it);
 			}
 			else

libi2pd/RouterContext.cpp

@@ -47,7 +47,10 @@ namespace i2p
 		routerInfo.SetRouterIdentity (GetIdentity ());
 		uint16_t port; i2p::config::GetOption("port", port);
 		if (!port)
+		{
 			port = rand () % (30777 - 9111) + 9111; // I2P network ports range
+			if (port == 9150) port = 9151; // Tor browser
+		}
 		bool ipv4;           i2p::config::GetOption("ipv4", ipv4);
 		bool ipv6;           i2p::config::GetOption("ipv6", ipv6);
 		bool ssu;            i2p::config::GetOption("ssu", ssu);
@@ -76,7 +79,7 @@ namespace i2p
 		}
 		if (ipv6)
 		{
-			std::string host = "::";
+			std::string host = "::1";
 			if (!i2p::config::IsDefault("host") && !ipv4) // override if v6 only
 				i2p::config::GetOption("host", host);
 			else if (!ifname.empty())
@@ -103,8 +106,13 @@ namespace i2p
 		{
 			if (!m_NTCP2Keys) NewNTCP2Keys ();
 			UpdateNTCP2Address (true);
+			if (!ntcp) // NTCP2 should replace NTCP
+			{
+				bool published; i2p::config::GetOption("ntcp2.published", published);
+				if (published)
+					PublishNTCP2Address (port, true);
+			}
 		}
-
 	}
 
 	void RouterContext::UpdateRouterInfo ()
@@ -166,7 +174,10 @@ namespace i2p
 	{
 		if (!m_NTCP2Keys) return;
 		if (!port)
+		{
 			port = rand () % (30777 - 9111) + 9111; // I2P network ports range
+			if (port == 9150) port = 9151; // Tor browser
+		}
 		bool updated = false;
 		for (auto& address : m_RouterInfo.GetAddresses ())
 		{
@@ -332,6 +343,51 @@ namespace i2p
 		return m_RouterInfo.GetCaps () & i2p::data::RouterInfo::eUnreachable;
 	}
 
+	void RouterContext::PublishNTCPAddress (bool publish, bool v4only)
+	{
+		auto& addresses = m_RouterInfo.GetAddresses ();
+		if (publish)
+		{
+			for (const auto& addr : addresses) // v4
+			{
+				if (addr->transportStyle == i2p::data::RouterInfo::eTransportSSU &&
+					addr->host.is_v4 ())
+				{
+					// insert NTCP address with host/port from SSU
+					m_RouterInfo.AddNTCPAddress (addr->host.to_string ().c_str (), addr->port);
+					break;
+				}
+			}
+			if (!v4only)
+			{
+				for (const auto& addr : addresses) // v6
+				{
+					if (addr->transportStyle == i2p::data::RouterInfo::eTransportSSU &&
+						addr->host.is_v6 ())
+					{
+						// insert NTCP address with host/port from SSU
+						m_RouterInfo.AddNTCPAddress (addr->host.to_string ().c_str (), addr->port);
+						break;
+					}
+				}
+			}
+		}
+		else
+		{
+			for (auto it = addresses.begin (); it != addresses.end ();)
+			{
+				if ((*it)->transportStyle == i2p::data::RouterInfo::eTransportNTCP && !(*it)->IsNTCP2 () &&
+					(!v4only || (*it)->host.is_v4 ()))
+				{
+					it = addresses.erase (it);
+					if (v4only) break; // otherwise might be more than one address
+				}
+				else
+					++it;
+			}
+		}
+	}
+
 	void RouterContext::SetUnreachable ()
 	{
 		// set caps
@@ -341,22 +397,13 @@ namespace i2p
 		caps &= ~i2p::data::RouterInfo::eFloodfill;	// can't be floodfill
 		caps &= ~i2p::data::RouterInfo::eSSUIntroducer; // can't be introducer
 		m_RouterInfo.SetCaps (caps);
-		// remove NTCP address
+		// remove NTCP v4 address
-		auto& addresses = m_RouterInfo.GetAddresses ();
+		PublishNTCPAddress (false);
-		for (auto it = addresses.begin (); it != addresses.end (); ++it)
-		{
-			if ((*it)->transportStyle == i2p::data::RouterInfo::eTransportNTCP && !(*it)->IsNTCP2 () &&
-				(*it)->host.is_v4 ())
-			{
-				addresses.erase (it);
-				break;
-			}
-		}
 		// delete previous introducers
+		auto& addresses = m_RouterInfo.GetAddresses ();
 		for (auto& addr : addresses)
 			if (addr->ssu)
 				addr->ssu->introducers.clear ();
-
 		// update
 		UpdateRouterInfo ();
 	}
@@ -371,27 +418,15 @@ namespace i2p
 		if (m_IsFloodfill)
 			caps |= i2p::data::RouterInfo::eFloodfill;
 		m_RouterInfo.SetCaps (caps);
-
-		auto& addresses = m_RouterInfo.GetAddresses ();
 		// insert NTCP back
 		bool ntcp;   i2p::config::GetOption("ntcp", ntcp);
-		if (ntcp) {
+		if (ntcp)
-			for (const auto& addr : addresses)
+			PublishNTCPAddress (true);
-			{
-				if (addr->transportStyle == i2p::data::RouterInfo::eTransportSSU &&
-					addr->host.is_v4 ())
-				{
-					// insert NTCP address with host/port from SSU
-					m_RouterInfo.AddNTCPAddress (addr->host.to_string ().c_str (), addr->port);
-					break;
-				}
-			}
-		}
 		// delete previous introducers
+		auto& addresses = m_RouterInfo.GetAddresses ();
 		for (auto& addr : addresses)
 			if (addr->ssu)
 				addr->ssu->introducers.clear ();
-
 		// update
 		UpdateRouterInfo ();
 	}

libi2pd/RouterContext.h

@@ -81,6 +81,7 @@ namespace i2p
 			void UpdateAddress (const boost::asio::ip::address& host);	// called from SSU or Daemon
 			void PublishNTCP2Address (int port, bool publish = true);
 			void UpdateNTCP2Address (bool enable);
+			void PublishNTCPAddress (bool publish, bool v4only = true);
 			bool AddIntroducer (const i2p::data::RouterInfo::Introducer& introducer);
 			void RemoveIntroducer (const boost::asio::ip::udp::endpoint& e);
 			bool IsUnreachable () const;

libi2pd/RouterInfo.cpp

@@ -51,7 +51,7 @@ namespace data
 
 	void RouterInfo::Update (const uint8_t * buf, int len)
 	{
-		// verify signature since we have indentity already
+		// verify signature since we have identity already
 		int l = len - m_RouterIdentity->GetSignatureLen ();
 		if (m_RouterIdentity->Verify (buf, l, buf + l))
 		{
@@ -208,20 +208,14 @@ namespace data
 				{
 					boost::system::error_code ecode;
 					address->host = boost::asio::ip::address::from_string (value, ecode);
-					if (ecode)
+					if (!ecode)
 					{
-						if (address->transportStyle == eTransportNTCP)
+#if BOOST_VERSION >= 104900
-						{
+						if (!address->host.is_unspecified ()) // check if address is valid
-							supportedTransports |= eNTCPV4; // TODO:
+#else
-							address->addressString = value;
+						address->host.to_string (ecode);
-						}
+						if (!ecode)
-						else
+#endif
-						{
-							supportedTransports |= eSSUV4; // TODO:
-							address->addressString = value;
-						}
-					}
-					else
 						{	
 							// add supported protocol
 							if (address->host.is_v4 ())
@@ -230,6 +224,7 @@ namespace data
 								supportedTransports |= (address->transportStyle == eTransportNTCP) ? eNTCPV6 : eSSUV6;
 						}	
 					}
+				}
 				else if (!strcmp (key, "port"))
 					address->port = boost::lexical_cast<int>(value);
 				else if (!strcmp (key, "mtu"))
@@ -888,7 +883,7 @@ namespace data
 	template<typename Filter>	
 	std::shared_ptr<const RouterInfo::Address> RouterInfo::GetAddress (Filter filter) const
 	{
-		// TODO: make it more gereric using comparator
+		// TODO: make it more generic using comparator
 #if (BOOST_VERSION >= 105300)
 		auto addresses = boost::atomic_load (&m_Addresses);
 #else

libi2pd/RouterInfo.h

@@ -102,7 +102,6 @@ namespace data
 			{
 				TransportStyle transportStyle;
 				boost::asio::ip::address host;
-				std::string addressString;
 				int port;
 				uint64_t date;
 				uint8_t cost;
@@ -170,6 +169,7 @@ namespace data
 			void EnableV4 ();
 			void DisableV4 ();
 			bool IsCompatible (const RouterInfo& other) const { return m_SupportedTransports & other.m_SupportedTransports; };
+			bool HasValidAddresses () const { return m_SupportedTransports; };
 			bool UsesIntroducer () const;
 			bool IsIntroducer () const { return m_Caps & eSSUIntroducer; };
 			bool IsPeerTesting () const { return m_Caps & eSSUTesting; };

libi2pd/SSU.cpp

@@ -328,7 +328,11 @@ namespace transport
 			{
 				if (!session || session->GetRemoteEndpoint () != packet->from) // we received packet for other session than previous
 				{
-					if (session) session->FlushData ();
+					if (session) 
+					{ 
+						session->FlushData (); 
+						session = nullptr; 
+					}
 					auto it = sessions->find (packet->from);
 					if (it != sessions->end ())
 						session = it->second;
@@ -750,6 +754,8 @@ namespace transport
 				if (it.second->IsTerminationTimeoutExpired (ts))
 				{
 					auto session = it.second;
+					if (it.first != session->GetRemoteEndpoint ())
+						LogPrint (eLogWarning, "SSU: remote endpoint ", session->GetRemoteEndpoint (), " doesn't match key ", it.first, " adjusted");
 					m_Service.post ([session]
 						{
 							LogPrint (eLogWarning, "SSU: no activity with ", session->GetRemoteEndpoint (), " for ", session->GetTerminationTimeout (), " seconds");
@@ -776,6 +782,8 @@ namespace transport
 				if (it.second->IsTerminationTimeoutExpired (ts))
 				{
 					auto session = it.second;
+					if (it.first != session->GetRemoteEndpoint ())
+						LogPrint (eLogWarning, "SSU: remote endpoint ", session->GetRemoteEndpoint (), " doesn't match key ", it.first);
 					m_ServiceV6.post ([session]
 						{
 							LogPrint (eLogWarning, "SSU: no activity with ", session->GetRemoteEndpoint (), " for ", session->GetTerminationTimeout (), " seconds");

libi2pd/SSUSession.cpp

@@ -158,7 +158,7 @@ namespace transport
 				ProcessData (buf + headerSize, len - headerSize);
 			break;
 			case PAYLOAD_TYPE_SESSION_REQUEST:
-				ProcessSessionRequest (buf, len, senderEndpoint); // buf with header
+				ProcessSessionRequest (buf, len); // buf with header
 			break;
 			case PAYLOAD_TYPE_SESSION_CREATED:
 				ProcessSessionCreated (buf, len); // buf with header
@@ -194,7 +194,7 @@ namespace transport
 		}
 	}
 
-	void SSUSession::ProcessSessionRequest (const uint8_t * buf, size_t len, const boost::asio::ip::udp::endpoint& senderEndpoint)
+	void SSUSession::ProcessSessionRequest (const uint8_t * buf, size_t len)
 	{
 		LogPrint (eLogDebug, "SSU message: session request");
 		bool sendRelayTag = true;
@@ -212,10 +212,9 @@ namespace transport
 		}
 		if (headerSize >= len)
 		{
-			LogPrint (eLogError, "Session reaquest header size ", headerSize, " exceeds packet length ", len);
+			LogPrint (eLogError, "Session request header size ", headerSize, " exceeds packet length ", len);
 			return;
 		}
-		m_RemoteEndpoint = senderEndpoint;
 		if (!m_DHKeysPair)
 			m_DHKeysPair = transports.GetNextDHKeysPair ();
 		CreateAESandMacKey (buf + headerSize);
@@ -1097,7 +1096,7 @@ namespace transport
 		// intro key
 		if (toAddress)
 		{
-			// send our intro key to address instead it's own
+			// send our intro key to address instead of its own
 			auto addr = i2p::context.GetRouterInfo ().GetSSUAddress ();
 			if (addr)
 				memcpy (payload, addr->ssu->key, 32); // intro key

libi2pd/SSUSession.h

@@ -80,7 +80,8 @@ namespace transport
 			void Close ();
 			void Done ();
 			void Failed ();
-			boost::asio::ip::udp::endpoint& GetRemoteEndpoint () { return m_RemoteEndpoint; };
+			const boost::asio::ip::udp::endpoint& GetRemoteEndpoint () { return m_RemoteEndpoint; };
+			
 			bool IsV6 () const { return m_RemoteEndpoint.address ().is_v6 (); };
 			void SendI2NPMessages (const std::vector<std::shared_ptr<I2NPMessage> >& msgs);
 			void SendPeerTest (); // Alice
@@ -103,7 +104,7 @@ namespace transport
 			size_t GetSSUHeaderSize (const uint8_t * buf) const;
 			void PostI2NPMessages (std::vector<std::shared_ptr<I2NPMessage> > msgs);
 			void ProcessMessage (uint8_t * buf, size_t len, const boost::asio::ip::udp::endpoint& senderEndpoint); // call for established session
-			void ProcessSessionRequest (const uint8_t * buf, size_t len, const boost::asio::ip::udp::endpoint& senderEndpoint);
+			void ProcessSessionRequest (const uint8_t * buf, size_t len);
 			void SendSessionRequest ();
 			void SendRelayRequest (const i2p::data::RouterInfo::Introducer& introducer, uint32_t nonce);
 			void ProcessSessionCreated (uint8_t * buf, size_t len);
@@ -139,7 +140,7 @@ namespace transport
 
 			friend class SSUData; // TODO: change in later
 			SSUServer& m_Server;
-			boost::asio::ip::udp::endpoint m_RemoteEndpoint;
+			const boost::asio::ip::udp::endpoint m_RemoteEndpoint;
 			boost::asio::deadline_timer m_ConnectTimer;
 			bool m_IsPeerTest;
 			SessionState m_State;

libi2pd/Signature.cpp

@@ -7,7 +7,8 @@ namespace i2p
 namespace crypto
 {
 #if OPENSSL_EDDSA	
-	EDDSA25519Verifier::EDDSA25519Verifier ()
+	EDDSA25519Verifier::EDDSA25519Verifier ():
+		m_Pkey (nullptr)
 	{
 		m_MDCtx = EVP_MD_CTX_create ();	
 	}
@@ -97,7 +98,7 @@ namespace crypto
 		uint8_t publicKey[EDDSA25519_PUBLIC_KEY_LENGTH];	
 		size_t len = EDDSA25519_PUBLIC_KEY_LENGTH;
 		EVP_PKEY_get_raw_public_key (m_Pkey, publicKey, &len);
-		if (memcmp (publicKey, signingPublicKey, EDDSA25519_PUBLIC_KEY_LENGTH))
+		if (signingPublicKey && memcmp (publicKey, signingPublicKey, EDDSA25519_PUBLIC_KEY_LENGTH))
 		{
 			LogPrint (eLogWarning, "EdDSA public key mismatch. Fallback");
 			EVP_PKEY_free (m_Pkey);

libi2pd/Signature.h

@@ -487,6 +487,42 @@ namespace crypto
 	typedef GOSTR3410Signer<GOSTR3411_256_Hash> GOSTR3410_256_Signer;
 	typedef GOSTR3410Verifier<GOSTR3411_512_Hash> GOSTR3410_512_Verifier;
 	typedef GOSTR3410Signer<GOSTR3411_512_Hash> GOSTR3410_512_Signer;
+
+	// RedDSA
+	typedef EDDSA25519Verifier RedDSA25519Verifier;
+	class RedDSA25519Signer: public Signer
+	{
+		public:
+
+			RedDSA25519Signer (const uint8_t * signingPrivateKey)
+			{
+				memcpy (m_PrivateKey, signingPrivateKey, EDDSA25519_PRIVATE_KEY_LENGTH);
+				BN_CTX * ctx = BN_CTX_new ();
+				auto publicKey = GetEd25519 ()->GeneratePublicKey (m_PrivateKey, ctx);
+				GetEd25519 ()->EncodePublicKey (publicKey, m_PublicKeyEncoded, ctx);
+				BN_CTX_free (ctx);
+			}	
+			~RedDSA25519Signer () {};
+			
+			void Sign (const uint8_t * buf, int len, uint8_t * signature) const
+			{
+				GetEd25519 ()->SignRedDSA (m_PrivateKey, m_PublicKeyEncoded, buf, len, signature);	
+			}
+			
+			const uint8_t * GetPublicKey () const { return m_PublicKeyEncoded; }; // for keys creation
+
+		private:
+		
+			uint8_t m_PrivateKey[EDDSA25519_PRIVATE_KEY_LENGTH];
+			uint8_t m_PublicKeyEncoded[EDDSA25519_PUBLIC_KEY_LENGTH];
+	};
+
+	inline void CreateRedDSA25519RandomKeys (uint8_t * signingPrivateKey, uint8_t * signingPublicKey)
+	{
+		GetEd25519 ()->CreateRedDSAPrivateKey (signingPrivateKey);
+		RedDSA25519Signer signer (signingPrivateKey);
+		memcpy (signingPublicKey, signer.GetPublicKey (), EDDSA25519_PUBLIC_KEY_LENGTH);	
+	}
 }
 }
 

libi2pd/Streaming.cpp

@@ -217,60 +217,16 @@ namespace stream
 
 	void Stream::ProcessPacket (Packet * packet)
 	{
-		// process flags
 		uint32_t receivedSeqn = packet->GetSeqn ();
 		uint16_t flags = packet->GetFlags ();
 		LogPrint (eLogDebug, "Streaming: Process seqn=", receivedSeqn, ", flags=", flags);
 
-		const uint8_t * optionData = packet->GetOptionData ();
+		if (!ProcessOptions (flags, packet))
-
-		if (flags & PACKET_FLAG_DELAY_REQUESTED)
-			optionData += 2;
-
-		if (flags & PACKET_FLAG_FROM_INCLUDED)
 		{
-			m_RemoteIdentity = std::make_shared<i2p::data::IdentityEx>(optionData, packet->GetOptionSize ());
-			if (m_RemoteIdentity->IsRSA ())
-			{
-				LogPrint (eLogInfo, "Streaming: Incoming stream from RSA destination ", m_RemoteIdentity->GetIdentHash ().ToBase64 (), "  Discarded");
 			m_LocalDestination.DeletePacket (packet);
 			Terminate ();
 			return;
 		}
-			optionData += m_RemoteIdentity->GetFullLen ();
-			if (!m_RemoteLeaseSet)
-				LogPrint (eLogDebug, "Streaming: Incoming stream from ", m_RemoteIdentity->GetIdentHash ().ToBase64 (), ", sSID=", m_SendStreamID, ", rSID=", m_RecvStreamID);
-		}
-
-		if (flags & PACKET_FLAG_MAX_PACKET_SIZE_INCLUDED)
-		{
-			uint16_t maxPacketSize = bufbe16toh (optionData);
-			LogPrint (eLogDebug, "Streaming: Max packet size ", maxPacketSize);
-			optionData += 2;
-		}
-
-		if (flags & PACKET_FLAG_SIGNATURE_INCLUDED)
-		{
-			uint8_t signature[256];
-			auto signatureLen = m_RemoteIdentity->GetSignatureLen ();
-			if(signatureLen <= sizeof(signature))
-			{
-				memcpy (signature, optionData, signatureLen);
-				memset (const_cast<uint8_t *>(optionData), 0, signatureLen);
-				if (!m_RemoteIdentity->Verify (packet->GetBuffer (), packet->GetLength (), signature))
-				{
-					LogPrint (eLogError, "Streaming: Signature verification failed, sSID=", m_SendStreamID, ", rSID=", m_RecvStreamID);
-					Close ();
-					flags |= PACKET_FLAG_CLOSE;
-				}
-				memcpy (const_cast<uint8_t *>(optionData), signature, signatureLen);
-				optionData += signatureLen;
-			}
-			else
-			{
-				LogPrint(eLogError, "Streaming: Signature too big, ", signatureLen, " bytes");
-			}
-		}
 		
 		packet->offset = packet->GetPayload () - packet->buf;
 		if (packet->GetLength () > 0)
@@ -298,6 +254,94 @@ namespace stream
 		}
 	}
 
+	bool Stream::ProcessOptions (uint16_t flags, Packet * packet)
+	{
+		const uint8_t * optionData = packet->GetOptionData ();
+		size_t optionSize = packet->GetOptionSize ();	
+		if (flags & PACKET_FLAG_DELAY_REQUESTED)
+			optionData += 2;
+
+		if (flags & PACKET_FLAG_FROM_INCLUDED)
+		{
+			if (m_RemoteLeaseSet) m_RemoteIdentity = m_RemoteLeaseSet->GetIdentity ();
+			if (!m_RemoteIdentity)
+				m_RemoteIdentity = std::make_shared<i2p::data::IdentityEx>(optionData, optionSize);
+			if (m_RemoteIdentity->IsRSA ())
+			{
+				LogPrint (eLogInfo, "Streaming: Incoming stream from RSA destination ", m_RemoteIdentity->GetIdentHash ().ToBase64 (), "  Discarded");
+				return false;
+			}
+			optionData += m_RemoteIdentity->GetFullLen ();
+			if (!m_RemoteLeaseSet)
+				LogPrint (eLogDebug, "Streaming: Incoming stream from ", m_RemoteIdentity->GetIdentHash ().ToBase64 (), ", sSID=", m_SendStreamID, ", rSID=", m_RecvStreamID);
+		}
+
+		if (flags & PACKET_FLAG_MAX_PACKET_SIZE_INCLUDED)
+		{
+			uint16_t maxPacketSize = bufbe16toh (optionData);
+			LogPrint (eLogDebug, "Streaming: Max packet size ", maxPacketSize);
+			optionData += 2;
+		}
+
+		if (flags & PACKET_FLAG_OFFLINE_SIGNATURE)
+		{
+			if (!m_RemoteIdentity)
+			{
+				LogPrint (eLogInfo, "Streaming: offline signature without identity");
+				return false;
+			}
+			// if we have it in LeaseSet already we don't need to parse it again
+			if (m_RemoteLeaseSet) m_TransientVerifier = m_RemoteLeaseSet->GetTransientVerifier ();
+			if (m_TransientVerifier)
+			{
+				// skip option data
+				optionData += 6; // timestamp and key type
+				optionData += m_TransientVerifier->GetPublicKeyLen (); // public key
+				optionData += m_RemoteIdentity->GetSignatureLen (); // signature
+			}
+			else
+			{
+				// transient key
+				size_t offset = 0;
+				m_TransientVerifier = i2p::data::ProcessOfflineSignature (m_RemoteIdentity, optionData, optionSize - (optionData - packet->GetOptionData ()), offset);
+				optionData += offset;
+				if (!m_TransientVerifier) 
+				{
+					LogPrint (eLogError, "Streaming: offline signature failed");
+					return false;
+				}				
+			}
+		}
+
+		if (flags & PACKET_FLAG_SIGNATURE_INCLUDED)
+		{
+			uint8_t signature[256];
+			auto signatureLen = m_RemoteIdentity->GetSignatureLen ();
+			if(signatureLen <= sizeof(signature))
+			{
+				memcpy (signature, optionData, signatureLen);
+				memset (const_cast<uint8_t *>(optionData), 0, signatureLen);
+				bool verified = m_TransientVerifier ? 
+					m_TransientVerifier->Verify (packet->GetBuffer (), packet->GetLength (), signature) :
+					m_RemoteIdentity->Verify (packet->GetBuffer (), packet->GetLength (), signature);
+				if (!verified)
+				{
+					LogPrint (eLogError, "Streaming: Signature verification failed, sSID=", m_SendStreamID, ", rSID=", m_RecvStreamID);
+					Close ();
+					flags |= PACKET_FLAG_CLOSE;
+				}
+				memcpy (const_cast<uint8_t *>(optionData), signature, signatureLen);
+				optionData += signatureLen;
+			}
+			else
+			{
+				LogPrint (eLogError, "Streaming: Signature too big, ", signatureLen, " bytes");
+				return false;
+			}
+		}
+		return true;	
+	}
+
 	void Stream::ProcessAck (Packet * packet)
 	{
 		bool acknowledged = false;
@@ -438,19 +482,28 @@ namespace stream
 					uint16_t flags = PACKET_FLAG_SYNCHRONIZE | PACKET_FLAG_FROM_INCLUDED |
 						PACKET_FLAG_SIGNATURE_INCLUDED | PACKET_FLAG_MAX_PACKET_SIZE_INCLUDED;
 					if (isNoAck) flags |= PACKET_FLAG_NO_ACK;
+					bool isOfflineSignature = m_LocalDestination.GetOwner ()->GetPrivateKeys ().IsOfflineSignature ();
+					if (isOfflineSignature) flags |= PACKET_FLAG_OFFLINE_SIGNATURE;
 					htobe16buf (packet + size, flags);
 					size += 2; // flags
 					size_t identityLen = m_LocalDestination.GetOwner ()->GetIdentity ()->GetFullLen ();
-					size_t signatureLen = m_LocalDestination.GetOwner ()->GetIdentity ()->GetSignatureLen ();
+					size_t signatureLen = m_LocalDestination.GetOwner ()->GetPrivateKeys ().GetSignatureLen ();
-					htobe16buf (packet + size, identityLen + signatureLen + 2); // identity + signature + packet size
+					uint8_t * optionsSize = packet + size; // set options size later	
 					size += 2; // options size
 					m_LocalDestination.GetOwner ()->GetIdentity ()->ToBuffer (packet + size, identityLen);
 					size += identityLen; // from
 					htobe16buf (packet + size, STREAMING_MTU);
 					size += 2; // max packet size
+					if (isOfflineSignature)
+					{
+						const auto& offlineSignature = m_LocalDestination.GetOwner ()->GetPrivateKeys ().GetOfflineSignature ();
+						memcpy (packet + size, offlineSignature.data (), offlineSignature.size ());
+						size += offlineSignature.size (); // offline signature
+					}
 					uint8_t * signature = packet + size; // set it later
 					memset (signature, 0, signatureLen); // zeroes for now
 					size += signatureLen; // signature
+					htobe16buf (optionsSize, packet + size - 2 - optionsSize); // actual options size
 					size += m_SendBuffer.Get (packet + size, STREAMING_MTU - size); // payload
 					m_LocalDestination.GetOwner ()->Sign (packet, size, signature);
 				}
@@ -549,7 +602,7 @@ namespace stream
 			size++; // NACK count
 		}
 		size++; // resend delay
-		htobuf16 (packet + size, 0); // nof flags set
+		htobuf16 (packet + size, 0); // no flags set
 		size += 2; // flags
 		htobuf16 (packet + size, 0); // no options
 		size += 2; // options size
@@ -849,6 +902,12 @@ namespace stream
 				LogPrint (eLogWarning, "Streaming: LeaseSet ", m_RemoteIdentity->GetIdentHash ().ToBase64 (), " not found");
 				m_LocalDestination.GetOwner ()->RequestDestination (m_RemoteIdentity->GetIdentHash ()); // try to request for a next attempt
 			}
+			else
+			{
+				// LeaseSet updated
+				m_RemoteIdentity = m_RemoteLeaseSet->GetIdentity ();
+				m_TransientVerifier = m_RemoteLeaseSet->GetTransientVerifier ();
+			}	
 		}
 		if (m_RemoteLeaseSet)
 		{
@@ -858,7 +917,12 @@ namespace stream
 			if (leases.empty ())
 			{
 				expired = false;
-				m_LocalDestination.GetOwner ()->RequestDestination (m_RemoteIdentity->GetIdentHash ()); // time to request
+				// time to request
+				if (m_RemoteLeaseSet->GetOrigStoreType () == i2p::data::NETDB_STORE_TYPE_ENCRYPTED_LEASESET2)
+					m_LocalDestination.GetOwner ()->RequestDestinationWithEncryptedLeaseSet (
+						std::make_shared<i2p::data::BlindedPublicKey>(m_RemoteIdentity));
+				else
+					m_LocalDestination.GetOwner ()->RequestDestination (m_RemoteIdentity->GetIdentHash ()); 
 				leases = m_RemoteLeaseSet->GetNonExpiredLeases (true); // then with threshold
 			}
 			if (!leases.empty ())

libi2pd/Streaming.h

@@ -38,6 +38,7 @@ namespace stream
 	const uint16_t PACKET_FLAG_PROFILE_INTERACTIVE = 0x0100;
 	const uint16_t PACKET_FLAG_ECHO = 0x0200;
 	const uint16_t PACKET_FLAG_NO_ACK = 0x0400;
+	const uint16_t PACKET_FLAG_OFFLINE_SIGNATURE = 0x0800;
 
 	const size_t STREAMING_MTU = 1730;
 	const size_t MAX_PACKET_SIZE = 4096;
@@ -195,6 +196,7 @@ namespace stream
 
 			void SavePacket (Packet * packet);
 			void ProcessPacket (Packet * packet);
+			bool ProcessOptions (uint16_t flags, Packet * packet);
 			void ProcessAck (Packet * packet);
 			size_t ConcatenatePackets (uint8_t * buf, size_t len);
 
@@ -216,6 +218,7 @@ namespace stream
 			bool m_IsAckSendScheduled;
 			StreamingDestination& m_LocalDestination;
 			std::shared_ptr<const i2p::data::IdentityEx> m_RemoteIdentity;
+			std::shared_ptr<const i2p::crypto::Verifier> m_TransientVerifier; // in case of offline key
 			std::shared_ptr<const i2p::data::LeaseSet> m_RemoteLeaseSet;
 			std::shared_ptr<i2p::garlic::GarlicRoutingSession> m_RoutingSession;
 			std::shared_ptr<const i2p::data::Lease> m_CurrentRemoteLease;

libi2pd/Timestamp.cpp

@@ -1,3 +1,5 @@
+#include <time.h>
+#include <stdio.h>
 #include <inttypes.h>
 #include <string.h>
 #include <chrono>
@@ -37,7 +39,6 @@ namespace util
 				 std::chrono::system_clock::now().time_since_epoch()).count ();
 	}
 
-
 	static int64_t g_TimeOffset = 0; // in seconds
 
 	static void SyncTimeWithNTP (const std::string& address)
@@ -178,6 +179,25 @@ namespace util
 	{
 		return GetLocalSecondsSinceEpoch () + g_TimeOffset;
 	}
+
+	void GetCurrentDate (char * date)
+	{
+		GetDateString (GetSecondsSinceEpoch (), date);
+	}
+
+	void GetDateString (uint64_t timestamp, char * date)
+	{
+		using clock = std::chrono::system_clock;
+		auto t = clock::to_time_t (clock::time_point (std::chrono::seconds(timestamp)));
+		struct tm tm;
+#ifdef _WIN32
+		gmtime_s(&tm, &t);
+		sprintf_s(date, 9, "%04i%02i%02i", tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday);
+#else
+		gmtime_r(&t, &tm);
+		sprintf(date, "%04i%02i%02i", tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday);
+#endif
+	}
 }
 }
 

libi2pd/Timestamp.h

@@ -15,6 +15,9 @@ namespace util
 	uint32_t GetHoursSinceEpoch ();
 	uint64_t GetSecondsSinceEpoch ();
 
+	void GetCurrentDate (char * date); // returns date as YYYYMMDD string, 9 bytes	
+	void GetDateString (uint64_t timestamp, char * date); // timestap is seconds since epoch, returns date as YYYYMMDD string, 9 bytes	
+
 	class NTPTimeSync
 	{
 		public:

libi2pd/Transports.cpp

@@ -426,14 +426,6 @@ namespace transport
 				auto address = peer.router->GetNTCPAddress (!context.SupportsV6 ());
 				if (address && m_NTCPServer)
 				{
-#if BOOST_VERSION >= 104900
-					if (!address->host.is_unspecified ()) // we have address now
-#else
-					boost::system::error_code ecode;
-				  address->host.to_string (ecode);
-					if (!ecode)
-#endif
-					{
 					if (!peer.router->UsesIntroducer () && !peer.router->IsUnreachable ())
 					{
 						if(!m_NTCPServer->ShouldLimit())
@@ -459,7 +451,6 @@ namespace transport
 						}
 					}
 				}
-				}
 				else
 					LogPrint (eLogDebug, "Transports: NTCP address is not present for ", i2p::data::GetIdentHashAbbreviation (ident), ", trying SSU");
 			}
@@ -469,19 +460,10 @@ namespace transport
 				if (m_SSUServer && peer.router->IsSSU (!context.SupportsV6 ()))
 				{
 					auto address = peer.router->GetSSUAddress (!context.SupportsV6 ());
-#if BOOST_VERSION >= 104900
-					if (!address->host.is_unspecified ()) // we have address now
-#else
-					boost::system::error_code ecode;
-					address->host.to_string (ecode);
-					if (!ecode)
-#endif
-					{
 					m_SSUServer->CreateSession (peer.router, address->host, address->port);
 					return true;
 				}
 			}
-			}
 			LogPrint (eLogInfo, "Transports: No NTCP or SSU addresses available");
 			peer.Done ();
 			std::unique_lock<std::mutex> l(m_PeersMutex);

libi2pd/TunnelGateway.cpp

@@ -51,6 +51,19 @@ namespace tunnel
 		// create fragments
 		const std::shared_ptr<I2NPMessage> & msg = block.data;
 		size_t fullMsgLen = diLen + msg->GetLength () + 2; // delivery instructions + payload + 2 bytes length
+		
+		if (!messageCreated && fullMsgLen > m_RemainingSize) // check if we should complete previous message
+		{
+			size_t numFollowOnFragments = fullMsgLen / TUNNEL_DATA_MAX_PAYLOAD_SIZE;
+			// length of bytes doesn't fit full tunnel message
+			// every follow-on fragment adds 7 bytes
+			size_t nonFit = (fullMsgLen + numFollowOnFragments*7) % TUNNEL_DATA_MAX_PAYLOAD_SIZE;
+			if (!nonFit || nonFit > m_RemainingSize)
+			{
+				CompleteCurrentTunnelDataMessage ();
+				CreateCurrentTunnelDataMessage ();
+			}
+		}
 		if (fullMsgLen <= m_RemainingSize)
 		{
 			// message fits. First and last fragment
@@ -65,18 +78,6 @@ namespace tunnel
 		}
 		else
 		{
-			if (!messageCreated) // check if we should complete previous message
-			{
-				size_t numFollowOnFragments = fullMsgLen / TUNNEL_DATA_MAX_PAYLOAD_SIZE;
-				// length of bytes don't fit full tunnel message
-				// every follow-on fragment adds 7 bytes
-				size_t nonFit = (fullMsgLen + numFollowOnFragments*7) % TUNNEL_DATA_MAX_PAYLOAD_SIZE;
-				if (!nonFit || nonFit > m_RemainingSize)
-				{
-					CompleteCurrentTunnelDataMessage ();
-					CreateCurrentTunnelDataMessage ();
-				}
-			}
 			if (diLen + 6 <= m_RemainingSize)
 			{
 				// delivery instructions fit

libi2pd/util.cpp

@@ -9,6 +9,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include <stdio.h>
+#include <sysinfoapi.h>
 #include <winsock2.h>
 #include <ws2tcpip.h>
 #include <iphlpapi.h>
@@ -21,9 +22,10 @@
 #define MALLOC(x) HeapAlloc(GetProcessHeap(), 0, (x))
 #define FREE(x) HeapFree(GetProcessHeap(), 0, (x))
 
-/* // No more needed. Exists in MinGW.
+// inet_pton exists Windows since Vista, but XP haven't that function!
-int inet_pton(int af, const char *src, void *dst)
+// This function was written by Petar Korponai?. See http://stackoverflow.com/questions/15660203/inet-pton-identifier-not-found
-{ // This function was written by Petar Korponai?. See http://stackoverflow.com/questions/15660203/inet-pton-identifier-not-found
+int inet_pton_xp(int af, const char *src, void *dst)
+{
 	struct sockaddr_storage ss;
 	int size = sizeof (ss);
 	char src_copy[INET6_ADDRSTRLEN + 1];
@@ -45,7 +47,7 @@ int inet_pton(int af, const char *src, void *dst)
 		}
 	}
 	return 0;
-}*/
+}
 #else /* !WIN32 => UNIX */
 #include <sys/types.h>
 #include <ifaddrs.h>
@@ -58,6 +60,20 @@ namespace util
 namespace net
 {
 #ifdef WIN32
+	bool IsWindowsXPorLater()
+	{
+		OSVERSIONINFO osvi;
+
+		ZeroMemory(&osvi, sizeof(OSVERSIONINFO));
+		osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
+		GetVersionEx(&osvi);
+
+		if (osvi.dwMajorVersion <= 5)
+			return true;
+		else
+			return false;
+	}
+
 	int GetMTUWindowsIpv4(sockaddr_in inputAddress, int fallback)
 	{
 		ULONG outBufLen = 0;
@@ -65,9 +81,9 @@ namespace net
 		PIP_ADAPTER_ADDRESSES pCurrAddresses = nullptr;
 		PIP_ADAPTER_UNICAST_ADDRESS pUnicast = nullptr;
 
-
 		if(GetAdaptersAddresses(AF_INET, GAA_FLAG_INCLUDE_PREFIX, nullptr, pAddresses, &outBufLen)
-          == ERROR_BUFFER_OVERFLOW) {
+			== ERROR_BUFFER_OVERFLOW)
+		{
 			FREE(pAddresses);
 			pAddresses = (IP_ADAPTER_ADDRESSES*) MALLOC(outBufLen);
 		}
@@ -76,24 +92,28 @@ namespace net
 			AF_INET, GAA_FLAG_INCLUDE_PREFIX, nullptr, pAddresses, &outBufLen
 		);
 
-        if(dwRetVal != NO_ERROR) {
+		if(dwRetVal != NO_ERROR)
+		{
 			LogPrint(eLogError, "NetIface: GetMTU(): enclosed GetAdaptersAddresses() call has failed");
 			FREE(pAddresses);
 			return fallback;
 		}
 
 		pCurrAddresses = pAddresses;
-        while(pCurrAddresses) {
+		while(pCurrAddresses)
+		{
 			PIP_ADAPTER_UNICAST_ADDRESS firstUnicastAddress = pCurrAddresses->FirstUnicastAddress;
 
 			pUnicast = pCurrAddresses->FirstUnicastAddress;
-            if(pUnicast == nullptr) {
+			if(pUnicast == nullptr)
 				LogPrint(eLogError, "NetIface: GetMTU(): not a unicast ipv4 address, this is not supported");
-            }
+
-            for(int i = 0; pUnicast != nullptr; ++i) {
+			for(int i = 0; pUnicast != nullptr; ++i)
+			{
 				LPSOCKADDR lpAddr = pUnicast->Address.lpSockaddr;
 				sockaddr_in* localInterfaceAddress = (sockaddr_in*) lpAddr;
-                if(localInterfaceAddress->sin_addr.S_un.S_addr == inputAddress.sin_addr.S_un.S_addr) {
+				if(localInterfaceAddress->sin_addr.S_un.S_addr == inputAddress.sin_addr.S_un.S_addr)
+				{
 					auto result = pAddresses->Mtu;
 					FREE(pAddresses);
 					return result;
@@ -116,7 +136,8 @@ namespace net
 		PIP_ADAPTER_UNICAST_ADDRESS pUnicast = nullptr;
 
 		if(GetAdaptersAddresses(AF_INET6, GAA_FLAG_INCLUDE_PREFIX, nullptr, pAddresses, &outBufLen)
-          == ERROR_BUFFER_OVERFLOW) {
+			== ERROR_BUFFER_OVERFLOW)
+		{
 			FREE(pAddresses);
 			pAddresses = (IP_ADAPTER_ADDRESSES*) MALLOC(outBufLen);
 		}
@@ -125,7 +146,8 @@ namespace net
 			AF_INET6, GAA_FLAG_INCLUDE_PREFIX, nullptr, pAddresses, &outBufLen
 		);
 
-        if(dwRetVal != NO_ERROR) {
+		if(dwRetVal != NO_ERROR)
+		{
 			LogPrint(eLogError, "NetIface: GetMTU(): enclosed GetAdaptersAddresses() call has failed");
 			FREE(pAddresses);
 			return fallback;
@@ -133,23 +155,28 @@ namespace net
 
 		bool found_address = false;
 		pCurrAddresses = pAddresses;
-        while(pCurrAddresses) {
+		while(pCurrAddresses)
+		{
 			PIP_ADAPTER_UNICAST_ADDRESS firstUnicastAddress = pCurrAddresses->FirstUnicastAddress;
 			pUnicast = pCurrAddresses->FirstUnicastAddress;
-            if(pUnicast == nullptr) {
+			if(pUnicast == nullptr)
 				LogPrint(eLogError, "NetIface: GetMTU(): not a unicast ipv6 address, this is not supported");
-            }
+
-            for(int i = 0; pUnicast != nullptr; ++i) {
+			for(int i = 0; pUnicast != nullptr; ++i)
+			{
 				LPSOCKADDR lpAddr = pUnicast->Address.lpSockaddr;
 				sockaddr_in6 *localInterfaceAddress = (sockaddr_in6*) lpAddr;
 
-                for (int j = 0; j != 8; ++j) {
+				for (int j = 0; j != 8; ++j)
-                    if (localInterfaceAddress->sin6_addr.u.Word[j] != inputAddress.sin6_addr.u.Word[j]) {
+				{
+					if (localInterfaceAddress->sin6_addr.u.Word[j] != inputAddress.sin6_addr.u.Word[j])
 						break;
-                    } else {
+					else
 						found_address = true;
 				}
-                } if (found_address) {
+
+				if (found_address)
+				{
 					auto result = pAddresses->Mtu;
 					FREE(pAddresses);
 					pAddresses = nullptr;
@@ -175,11 +202,19 @@ namespace net
 		std::string localAddressUniversal = localAddress.to_string();
 #endif
 
-        if(localAddress.is_v4()) {
+		if (IsWindowsXPorLater())
+		{
+			#define inet_pton inet_pton_xp
+		}
+
+		if(localAddress.is_v4())
+		{
 			sockaddr_in inputAddress;
 			inet_pton(AF_INET, localAddressUniversal.c_str(), &(inputAddress.sin_addr));
 			return GetMTUWindowsIpv4(inputAddress, fallback);
-        } else if(localAddress.is_v6()) {
+		}
+		else if(localAddress.is_v6())
+		{
 			sockaddr_in6 inputAddress;
 			inet_pton(AF_INET6, localAddressUniversal.c_str(), &(inputAddress.sin6_addr));
 			return GetMTUWindowsIpv6(inputAddress, fallback);
@@ -187,7 +222,6 @@ namespace net
 			LogPrint(eLogError, "NetIface: GetMTU(): address family is not supported");
 			return fallback;
 		}
-
 	}
 #else // assume unix
 	int GetMTUUnix(const boost::asio::ip::address& localAddress, int fallback)
@@ -261,6 +295,9 @@ namespace net
 	{
 #ifdef WIN32
 		LogPrint(eLogError, "NetIface: cannot get address by interface name, not implemented on WIN32");
+		if(ipv6)
+			return boost::asio::ip::address::from_string("::1");
+		else
 			return boost::asio::ip::address::from_string("127.0.0.1");
 #else
 		int af = (ipv6 ? AF_INET6 : AF_INET);
@@ -291,8 +328,9 @@ namespace net
 		}
 		if(addrs) freeifaddrs(addrs);
 		std::string fallback;
-		if(ipv6) {
+		if(ipv6)
-			fallback = "::";
+		{
+			fallback = "::1";
 			LogPrint(eLogWarning, "NetIface: cannot find ipv6 address for interface ", ifname);
 		} else {
 			fallback = "127.0.0.1";

libi2pd/version.h

@@ -7,7 +7,7 @@
 #define MAKE_VERSION(a,b,c) STRINGIZE(a) "." STRINGIZE(b) "." STRINGIZE(c)
 
 #define I2PD_VERSION_MAJOR 2
-#define I2PD_VERSION_MINOR 23
+#define I2PD_VERSION_MINOR 25
 #define I2PD_VERSION_MICRO 0
 #define I2PD_VERSION_PATCH 0
 #define I2PD_VERSION MAKE_VERSION(I2PD_VERSION_MAJOR, I2PD_VERSION_MINOR, I2PD_VERSION_MICRO)
@@ -21,7 +21,7 @@
 
 #define I2P_VERSION_MAJOR 0
 #define I2P_VERSION_MINOR 9
-#define I2P_VERSION_MICRO 38
+#define I2P_VERSION_MICRO 40
 #define I2P_VERSION_PATCH 0
 #define I2P_VERSION MAKE_VERSION(I2P_VERSION_MAJOR, I2P_VERSION_MINOR, I2P_VERSION_MICRO)
 

libi2pd_client/AddressBook.cpp

@@ -7,6 +7,7 @@
 #include <condition_variable>
 #include <openssl/rand.h>
 #include <boost/algorithm/string.hpp>
+#include <boost/filesystem.hpp>
 #include "Base.h"
 #include "util.h"
 #include "Identity.h"
@@ -30,23 +31,30 @@ namespace client
 			std::string etagsPath, indexPath, localPath;
 
 		public:
-			AddressBookFilesystemStorage (): storage("addressbook", "b", "", "b32") {};
+			AddressBookFilesystemStorage (): storage("addressbook", "b", "", "b32") 
+			{
+				i2p::config::GetOption("persist.addressbook", m_IsPersist);
+			}
 			std::shared_ptr<const i2p::data::IdentityEx> GetAddress (const i2p::data::IdentHash& ident) const;
 			void AddAddress (std::shared_ptr<const i2p::data::IdentityEx> address);
 			void RemoveAddress (const i2p::data::IdentHash& ident);
 
 			bool Init ();
-			int Load (std::map<std::string, i2p::data::IdentHash>& addresses);
+			int Load (std::map<std::string, std::shared_ptr<Address> > & addresses);
-			int LoadLocal (std::map<std::string, i2p::data::IdentHash>& addresses);
+			int LoadLocal (std::map<std::string, std::shared_ptr<Address> >& addresses);
-			int Save (const std::map<std::string, i2p::data::IdentHash>& addresses);
+			int Save (const std::map<std::string, std::shared_ptr<Address> >& addresses);
 
 			void SaveEtag (const i2p::data::IdentHash& subsciption, const std::string& etag, const std::string& lastModified);
 			bool GetEtag (const i2p::data::IdentHash& subscription, std::string& etag, std::string& lastModified);
+			void ResetEtags ();
 
 		private:
 
-			int LoadFromFile (const std::string& filename, std::map<std::string, i2p::data::IdentHash>& addresses); // returns -1 if can't open file, otherwise number of records
+			int LoadFromFile (const std::string& filename, std::map<std::string, std::shared_ptr<Address> >& addresses); // returns -1 if can't open file, otherwise number of records
 
+		private:
+
+			bool m_IsPersist;
 	};
 
 	bool AddressBookFilesystemStorage::Init()
@@ -69,6 +77,11 @@ namespace client
 
 	std::shared_ptr<const i2p::data::IdentityEx> AddressBookFilesystemStorage::GetAddress (const i2p::data::IdentHash& ident) const
 	{
+		if (!m_IsPersist) 
+		{
+			LogPrint(eLogDebug, "Addressbook: Persistence is disabled");
+			return nullptr;	
+		}
 		std::string filename = storage.Path(ident.ToBase32());
 		std::ifstream f(filename, std::ifstream::binary);
 		if (!f.is_open ()) {
@@ -92,6 +105,7 @@ namespace client
 
 	void AddressBookFilesystemStorage::AddAddress (std::shared_ptr<const i2p::data::IdentityEx> address)
 	{
+		if (!m_IsPersist) return;
 		std::string path = storage.Path( address->GetIdentHash().ToBase32() );
 		std::ofstream f (path, std::ofstream::binary | std::ofstream::out);
 		if (!f.is_open ())	{
@@ -107,10 +121,11 @@ namespace client
 
 	void AddressBookFilesystemStorage::RemoveAddress (const i2p::data::IdentHash& ident)
 	{
+		if (!m_IsPersist) return;	
 		storage.Remove( ident.ToBase32() );
 	}
 
-	int AddressBookFilesystemStorage::LoadFromFile (const std::string& filename, std::map<std::string, i2p::data::IdentHash>& addresses)
+	int AddressBookFilesystemStorage::LoadFromFile (const std::string& filename, std::map<std::string, std::shared_ptr<Address> >& addresses)
 	{
 		int num = 0;
 		std::ifstream f (filename, std::ifstream::in); // in text mode
@@ -129,16 +144,14 @@ namespace client
 				std::string name = s.substr(0, pos++);
 				std::string addr = s.substr(pos);
 
-				i2p::data::IdentHash ident;
+				addresses[name] = std::make_shared<Address>(addr);
-				ident.FromBase32 (addr);
-				addresses[name] = ident;
 				num++;
 			}
 		}
 		return num;
 	}
 
-	int AddressBookFilesystemStorage::Load (std::map<std::string, i2p::data::IdentHash>& addresses)
+	int AddressBookFilesystemStorage::Load (std::map<std::string, std::shared_ptr<Address> >& addresses)
 	{
 		int num = LoadFromFile (indexPath, addresses);
 		if (num < 0)
@@ -152,7 +165,7 @@ namespace client
 		return num;
 	}
 
-	int AddressBookFilesystemStorage::LoadLocal (std::map<std::string, i2p::data::IdentHash>& addresses)
+	int AddressBookFilesystemStorage::LoadLocal (std::map<std::string, std::shared_ptr<Address> >& addresses)
 	{
 		int num = LoadFromFile (localPath, addresses);
 		if (num < 0) return 0;
@@ -160,7 +173,7 @@ namespace client
 		return num;
 	}
 
-	int AddressBookFilesystemStorage::Save (const std::map<std::string, i2p::data::IdentHash>& addresses)
+	int AddressBookFilesystemStorage::Save (const std::map<std::string, std::shared_ptr<Address> >& addresses)
 	{
 		if (addresses.empty()) {
 			LogPrint(eLogWarning, "Addressbook: not saving empty addressbook");
@@ -175,8 +188,14 @@ namespace client
 			return 0;
 		}
 
-		for (const auto& it: addresses) {
+		for (const auto& it: addresses)
-			f << it.first << "," << it.second.ToBase32 () << std::endl;
+		{	
+			f << it.first << ",";
+			if (it.second->IsIdentHash ())
+				f << it.second->identHash.ToBase32 ();
+			else
+				f << it.second->blindedPublicKey->ToB33 ();
+			f << std::endl;
 			num++;
 		}
 		LogPrint (eLogInfo, "Addressbook: ", num, " addresses saved");
@@ -205,7 +224,39 @@ namespace client
 		return true;
 	}
 
+	void AddressBookFilesystemStorage::ResetEtags ()
+	{
+		LogPrint (eLogError, "Addressbook: resetting eTags");
+		for (boost::filesystem::directory_iterator it (etagsPath); it != boost::filesystem::directory_iterator (); ++it)
+		{
+			if (!boost::filesystem::is_regular_file (it->status ()))
+				continue;
+			boost::filesystem::remove (it->path ());
+		}
+	}
+
 //---------------------------------------------------------------------
+
+	Address::Address (const std::string& b32)
+	{
+		if (b32.length () <= B33_ADDRESS_THRESHOLD)
+		{
+			addressType = eAddressIndentHash;
+			identHash.FromBase32 (b32);
+		}
+		else
+		{
+			addressType = eAddressBlindedPublicKey;
+			blindedPublicKey = std::make_shared<i2p::data::BlindedPublicKey>(b32);
+		}
+	}	
+
+	Address::Address (const i2p::data::IdentHash& hash)
+	{
+		addressType = eAddressIndentHash;
+		identHash = hash;	
+	}
+
 	AddressBook::AddressBook (): m_Storage(nullptr), m_IsLoaded (false), m_IsDownloading (false),
 		m_NumRetries (0), m_DefaultSubscription (nullptr), m_SubscriptionsUpdateTimer (nullptr)
 	{
@@ -242,7 +293,7 @@ namespace client
 		}
 		if (m_IsDownloading)
 		{
-			LogPrint (eLogInfo, "Addressbook: subscriptions is downloading, abort");
+			LogPrint (eLogInfo, "Addressbook: subscriptions are downloading, abort");
 			for (int i = 0; i < 30; i++)
 			{
 				if (!m_IsDownloading)
@@ -265,67 +316,70 @@ namespace client
 		m_Subscriptions.clear ();
 	}
 
-	bool AddressBook::GetIdentHash (const std::string& address, i2p::data::IdentHash& ident)
+	std::shared_ptr<const Address> AddressBook::GetAddress (const std::string& address)
 	{
 		auto pos = address.find(".b32.i2p");
 		if (pos != std::string::npos)
-		{
+			return std::make_shared<const Address>(address.substr (0, pos));
-			Base32ToByteStream (address.c_str(), pos, ident, 32);
-			return true;
-		}
 		else
 		{
 			pos = address.find (".i2p");
 			if (pos != std::string::npos)
 			{
-				auto identHash = FindAddress (address);
+				auto addr = FindAddress (address);
-				if (identHash)
+				if (!addr)
-				{
-					ident = *identHash;
-					return true;
-				}
-				else
-				{
 					 LookupAddress (address); // TODO:	
-					return false;
+				return addr;
-				}
 			}	
 		}	
 		// if not .b32 we assume full base64 address
 		i2p::data::IdentityEx dest;
 		if (!dest.FromBase64 (address))
-			return false;
+			return nullptr;
-		ident = dest.GetIdentHash ();
+		return std::make_shared<const Address>(dest.GetIdentHash ());
-		return true;
 	}
 
-	const i2p::data::IdentHash * AddressBook::FindAddress (const std::string& address)
+	std::shared_ptr<const Address> AddressBook::FindAddress (const std::string& address)
 	{
 		auto it = m_Addresses.find (address);
 		if (it != m_Addresses.end ())
-			return &it->second;
+			return it->second;
 		return nullptr;
 	}
 
-	void AddressBook::InsertAddress (const std::string& address, const std::string& base64)
+	void AddressBook::InsertAddress (const std::string& address, const std::string& jump)
 	{
+		auto pos = jump.find(".b32.i2p");
+		if (pos != std::string::npos)
+		{
+			m_Addresses[address] = std::make_shared<Address>(jump.substr (0, pos));
+			LogPrint (eLogInfo, "Addressbook: added ", address," -> ", jump);
+		}	
+		else
+		{	
+			// assume base64	
 			auto ident = std::make_shared<i2p::data::IdentityEx>();
-		ident->FromBase64 (base64);
+			if (ident->FromBase64 (jump))
+			{
 				m_Storage->AddAddress (ident);
-		m_Addresses[address] = ident->GetIdentHash ();
+				m_Addresses[address] = std::make_shared<Address>(ident->GetIdentHash ());
 				LogPrint (eLogInfo, "Addressbook: added ", address," -> ", ToAddress(ident->GetIdentHash ()));
 			}
+			else
+				LogPrint (eLogError, "Addressbook: malformed address ", jump);
+		}
+	}
 
-	void AddressBook::InsertAddress (std::shared_ptr<const i2p::data::IdentityEx> address)
+	void AddressBook::InsertFullAddress (std::shared_ptr<const i2p::data::IdentityEx> address)
 	{
 		m_Storage->AddAddress (address);
 	}
 
-	std::shared_ptr<const i2p::data::IdentityEx> AddressBook::GetAddress (const std::string& address)
+	std::shared_ptr<const i2p::data::IdentityEx> AddressBook::GetFullAddress (const std::string& address)
 	{
-		i2p::data::IdentHash ident;
+		auto addr = GetAddress (address);
-		if (!GetIdentHash (address, ident)) return nullptr;
+		if (!addr || !addr->IsIdentHash ()) return nullptr;
-		return m_Storage->GetAddress (ident);
+		return m_Storage->GetAddress (addr->identHash);
 	}
 
 	void AddressBook::LoadHosts ()
@@ -343,6 +397,9 @@ namespace client
 			LoadHostsFromStream (f, false);
 			m_IsLoaded = true;
 		}
+
+		// reset eTags, because we don’t know how old hosts.txt is or can't load addressbook
+		m_Storage->ResetEtags ();
 	}
 
 	bool AddressBook::LoadHostsFromStream (std::istream& f, bool is_update)
@@ -379,16 +436,17 @@ namespace client
 				auto it = m_Addresses.find (name);
 				if (it != m_Addresses.end ()) // already exists ?
 				{
-					if (it->second != ident->GetIdentHash ()) // address changed?
+					if (it->second->IsIdentHash () && it->second->identHash != ident->GetIdentHash ()) // address changed?
 					{
-						it->second = ident->GetIdentHash ();
+						it->second->identHash = ident->GetIdentHash ();
 						m_Storage->AddAddress (ident);
 						LogPrint (eLogInfo, "Addressbook: updated host: ", name);
 					}
 				}
 				else
 				{
-					m_Addresses.insert (std::make_pair (name, ident->GetIdentHash ()));
+					//m_Addresses.emplace (name, std::make_shared<Address>(ident->GetIdentHash ()));
+					m_Addresses[name] = std::make_shared<Address>(ident->GetIdentHash ()); // for gcc 4.7
 					m_Storage->AddAddress (ident);
 					if (is_update)
 						LogPrint (eLogInfo, "Addressbook: added new host: ", name);
@@ -443,32 +501,33 @@ namespace client
 
 	void AddressBook::LoadLocal ()
 	{
-		std::map<std::string, i2p::data::IdentHash> localAddresses;
+		std::map<std::string, std::shared_ptr<Address>> localAddresses;
 		m_Storage->LoadLocal (localAddresses);
 		for (const auto& it: localAddresses)
 		{
+			if (!it.second->IsIdentHash ()) continue; // skip blinded for now
 			auto dot = it.first.find ('.');
 			if (dot != std::string::npos)
 			{
 				auto domain = it.first.substr (dot + 1);
 				auto it1 = m_Addresses.find (domain);  // find domain in our addressbook
-				if (it1 != m_Addresses.end ())
+				if (it1 != m_Addresses.end () && it1->second->IsIdentHash ())
 				{
-					auto dest = context.FindLocalDestination (it1->second);
+					auto dest = context.FindLocalDestination (it1->second->identHash);
 					if (dest)
 					{
 						// address is ours
 						std::shared_ptr<AddressResolver> resolver;
-						auto it2 = m_Resolvers.find (it1->second);
+						auto it2 = m_Resolvers.find (it1->second->identHash);
 						if (it2 != m_Resolvers.end ())
 							resolver = it2->second; // resolver exists
 						else
 						{
 							// create new resolver
 							resolver = std::make_shared<AddressResolver>(dest);
-							m_Resolvers.insert (std::make_pair(it1->second, resolver));
+							m_Resolvers.insert (std::make_pair(it1->second->identHash, resolver));
 						}
-						resolver->AddAddress (it.first, it.second);
+						resolver->AddAddress (it.first, it.second->identHash);
 					}
 				}
 			}
@@ -598,11 +657,11 @@ namespace client
 
 	void AddressBook::LookupAddress (const std::string& address)
 	{
-		const i2p::data::IdentHash * ident = nullptr;
+		std::shared_ptr<const Address> addr;
 		auto dot = address.find ('.');
 		if (dot != std::string::npos)
-			ident = FindAddress (address.substr (dot + 1));
+			addr = FindAddress (address.substr (dot + 1));
-		if (!ident)
+		if (!addr || !addr->IsIdentHash ()) // TODO:
 		{
 			LogPrint (eLogError, "Addressbook: Can't find domain for ", address);
 			return;
@@ -620,14 +679,14 @@ namespace client
 					std::unique_lock<std::mutex> l(m_LookupsMutex);
 					m_Lookups[nonce] = address;
 				}
-				LogPrint (eLogDebug, "Addressbook: Lookup of ", address, " to ", ident->ToBase32 (), " nonce=", nonce);
+				LogPrint (eLogDebug, "Addressbook: Lookup of ", address, " to ", addr->identHash.ToBase32 (), " nonce=", nonce);
 				size_t len = address.length () + 9;
 				uint8_t * buf = new uint8_t[len];
 				memset (buf, 0, 4);
 				htobe32buf (buf + 4, nonce);
 				buf[8] = address.length ();
 				memcpy (buf + 9, address.c_str (), address.length ());
-				datagram->SendDatagramTo (buf, len, *ident, ADDRESS_RESPONSE_DATAGRAM_PORT, ADDRESS_RESOLVER_DATAGRAM_PORT);
+				datagram->SendDatagramTo (buf, len, addr->identHash, ADDRESS_RESPONSE_DATAGRAM_PORT, ADDRESS_RESOLVER_DATAGRAM_PORT);
 				delete[] buf;
 			}
 		}
@@ -657,7 +716,7 @@ namespace client
 			// TODO: verify from
 			i2p::data::IdentHash hash(buf + 8);
 			if (!hash.IsZero ())
-				m_Addresses[address] = hash;
+				m_Addresses[address] = std::make_shared<Address>(hash);
 			else
 				LogPrint (eLogInfo, "AddressBook: Lookup response: ", address, " not found");
 		}
@@ -679,14 +738,19 @@ namespace client
 		i2p::http::URL url;
 		// must be run in separate thread
 		LogPrint (eLogInfo, "Addressbook: Downloading hosts database from ", m_Link);
-		if (!url.parse(m_Link)) {
+		if (!url.parse(m_Link)) 
+		{
 			LogPrint(eLogError, "Addressbook: failed to parse url: ", m_Link);
 			return false;
 		}
-		if (!m_Book.GetIdentHash (url.host, m_Ident)) {
+		auto addr = m_Book.GetAddress (url.host);
+		if (!addr || !addr->IsIdentHash ())	
+		{
 			LogPrint (eLogError, "Addressbook: Can't resolve ", url.host);
 			return false;
 		}
+		else
+			m_Ident = addr->identHash;
 		/* this code block still needs some love */
 		std::condition_variable newDataReceived;
 		std::mutex newDataReceivedMutex;

libi2pd_client/AddressBook.h

@@ -13,6 +13,7 @@
 #include "Identity.h"
 #include "Log.h"
 #include "Destination.h"
+#include "LeaseSet.h"
 
 namespace i2p
 {
@@ -28,6 +29,19 @@ namespace client
 	const uint16_t ADDRESS_RESOLVER_DATAGRAM_PORT = 53;
 	const uint16_t ADDRESS_RESPONSE_DATAGRAM_PORT = 54;
 
+	const size_t B33_ADDRESS_THRESHOLD = 52; // characters
+
+	struct Address
+	{
+		enum { eAddressIndentHash, eAddressBlindedPublicKey } addressType;
+		i2p::data::IdentHash identHash;
+		std::shared_ptr<i2p::data::BlindedPublicKey> blindedPublicKey;
+
+		Address (const std::string& b32);	
+		Address (const i2p::data::IdentHash& hash);	
+		bool IsIdentHash () const { return addressType == eAddressIndentHash; };
+	};
+
 	inline std::string GetB32Address(const i2p::data::IdentHash& ident) { return ident.ToBase32().append(".b32.i2p"); }
 
 	class AddressBookStorage // interface for storage
@@ -40,12 +54,13 @@ namespace client
 			virtual void RemoveAddress (const i2p::data::IdentHash& ident) = 0;
 
 			virtual bool Init () = 0;
-			virtual int Load (std::map<std::string, i2p::data::IdentHash>& addresses) = 0;
+			virtual int Load (std::map<std::string, std::shared_ptr<Address> >& addresses) = 0;
-			virtual int LoadLocal (std::map<std::string, i2p::data::IdentHash>& addresses) = 0;
+			virtual int LoadLocal (std::map<std::string, std::shared_ptr<Address> >& addresses) = 0;
-			virtual int Save (const std::map<std::string, i2p::data::IdentHash>& addresses) = 0;
+			virtual int Save (const std::map<std::string, std::shared_ptr<Address> >& addresses) = 0;
 
 			virtual void SaveEtag (const i2p::data::IdentHash& subscription, const std::string& etag, const std::string& lastModified) = 0;
 			virtual bool GetEtag (const i2p::data::IdentHash& subscription, std::string& etag, std::string& lastModified) = 0;
+			virtual void ResetEtags () = 0;
 	};
 
 	class AddressBookSubscription;
@@ -59,12 +74,12 @@ namespace client
 			void Start ();
 			void StartResolvers ();
 			void Stop ();
-			bool GetIdentHash (const std::string& address, i2p::data::IdentHash& ident);
+			std::shared_ptr<const Address> GetAddress (const std::string& address);
-			std::shared_ptr<const i2p::data::IdentityEx> GetAddress (const std::string& address);
+			std::shared_ptr<const i2p::data::IdentityEx> GetFullAddress (const std::string& address);
-			const i2p::data::IdentHash * FindAddress (const std::string& address);
+			std::shared_ptr<const Address> FindAddress (const std::string& address);
 			void LookupAddress (const std::string& address);
-			void InsertAddress (const std::string& address, const std::string& base64); // for jump service
+			void InsertAddress (const std::string& address, const std::string& jump); // for jump links
-			void InsertAddress (std::shared_ptr<const i2p::data::IdentityEx> address);
+			void InsertFullAddress (std::shared_ptr<const i2p::data::IdentityEx> address);
 
 			bool LoadHostsFromStream (std::istream& f, bool is_update);
 			void DownloadComplete (bool success, const i2p::data::IdentHash& subscription, const std::string& etag, const std::string& lastModified);
@@ -92,7 +107,7 @@ namespace client
 		private:
 
 			std::mutex m_AddressBookMutex;
-			std::map<std::string, i2p::data::IdentHash>  m_Addresses;
+			std::map<std::string, std::shared_ptr<Address> >  m_Addresses;
 			std::map<i2p::data::IdentHash, std::shared_ptr<AddressResolver> > m_Resolvers; // local destination->resolver
 			std::mutex m_LookupsMutex;
 			std::map<uint32_t, std::string> m_Lookups; // nonce -> address

libi2pd_client/BOB.cpp

@@ -72,17 +72,24 @@ namespace client
 				if (eol != receiver->buffer && eol[-1] == '\r') eol[-1] = 0; // workaround for Transmission, it sends '\r\n' terminated address
 				receiver->data = (uint8_t *)eol + 1;
 				receiver->dataLen = receiver->bufferOffset - (eol - receiver->buffer + 1);
-				i2p::data::IdentHash ident;
+				auto addr = context.GetAddressBook ().GetAddress (receiver->buffer);
-				if (!context.GetAddressBook ().GetIdentHash (receiver->buffer, ident))
+				if (!addr)
 				{
 					LogPrint (eLogError, "BOB: address ", receiver->buffer, " not found");
 					return;
 				}
-				auto leaseSet = GetLocalDestination ()->FindLeaseSet (ident);
+				if (addr->IsIdentHash ())
+				{
+					auto leaseSet = GetLocalDestination ()->FindLeaseSet (addr->identHash);
 					if (leaseSet)
 						CreateConnection (receiver, leaseSet);
 					else
-					GetLocalDestination ()->RequestDestination (ident,
+						GetLocalDestination ()->RequestDestination (addr->identHash,
+							std::bind (&BOBI2PInboundTunnel::HandleDestinationRequestComplete,
+							this, std::placeholders::_1, receiver));
+				}
+				else
+					GetLocalDestination ()->RequestDestinationWithEncryptedLeaseSet (addr->blindedPublicKey,
 							std::bind (&BOBI2PInboundTunnel::HandleDestinationRequestComplete,
 							this, std::placeholders::_1, receiver));
 			}
@@ -540,29 +547,37 @@ namespace client
 	void BOBCommandSession::LookupCommandHandler (const char * operand, size_t len)
 	{
 		LogPrint (eLogDebug, "BOB: lookup ", operand);
-		i2p::data::IdentHash ident;
+		auto addr = context.GetAddressBook ().GetAddress (operand);
-		if (!context.GetAddressBook ().GetIdentHash (operand, ident))
+		if (!addr)
 		{
 			SendReplyError ("Address Not found");
 			return;
 		}
 		auto localDestination = m_CurrentDestination ? m_CurrentDestination->GetLocalDestination () : i2p::client::context.GetSharedLocalDestination ();
-		auto leaseSet = localDestination->FindLeaseSet (ident);
+		if (addr->IsIdentHash ())
-		if (leaseSet)
-			SendReplyOK (leaseSet->GetIdentity ()->ToBase64 ().c_str ());
-		else
 		{	
+			// we might have leaseset already
+			auto leaseSet = localDestination->FindLeaseSet (addr->identHash);
+			if (leaseSet)
+			{	
+				SendReplyOK (leaseSet->GetIdentity ()->ToBase64 ().c_str ());
+				return;
+			}
+		}
+		// trying to request
 		auto s = shared_from_this ();	
-			localDestination->RequestDestination (ident,
+		auto requstCallback = 
 			[s](std::shared_ptr<i2p::data::LeaseSet> ls)
 				{
 					if (ls)
 						s->SendReplyOK (ls->GetIdentity ()->ToBase64 ().c_str ());
 					else
 						s->SendReplyError ("LeaseSet Not found");
-				}
+				};
-			);
+		if (addr->IsIdentHash ())
-		}
+			localDestination->RequestDestination (addr->identHash, requstCallback);
+		else
+			localDestination->RequestDestinationWithEncryptedLeaseSet (addr->blindedPublicKey, requstCallback);
 	}
 
 	void BOBCommandSession::ClearCommandHandler (const char * operand, size_t len)

libi2pd_client/ClientContext.cpp

@@ -540,7 +540,8 @@ namespace client
 						{
 							// http proxy
 							std::string outproxy = section.second.get("outproxy", "");
-							auto tun = std::make_shared<i2p::proxy::HTTPProxy>(name, address, port, outproxy, localDestination);
+							bool addresshelper = section.second.get("addresshelper", true);
+							auto tun = std::make_shared<i2p::proxy::HTTPProxy>(name, address, port, outproxy, addresshelper, localDestination);
 							clientTunnel = tun;
 							clientEndpoint = tun->GetLocalEndpoint ();
 						}
@@ -716,6 +717,7 @@ namespace client
 			uint16_t    httpProxyPort; i2p::config::GetOption("httpproxy.port",    httpProxyPort);
 			i2p::data::SigningKeyType sigType; i2p::config::GetOption("httpproxy.signaturetype",  sigType);
 			std::string httpOutProxyURL; i2p::config::GetOption("httpproxy.outproxy",     httpOutProxyURL);
+			bool httpAddresshelper; i2p::config::GetOption("httpproxy.addresshelper", httpAddresshelper);
 			LogPrint(eLogInfo, "Clients: starting HTTP Proxy at ", httpProxyAddr, ":", httpProxyPort);
 			if (httpProxyKeys.length () > 0)
 			{
@@ -732,7 +734,7 @@ namespace client
 			}
 			try
 			{
-				m_HttpProxy = new i2p::proxy::HTTPProxy("HTTP Proxy", httpProxyAddr, httpProxyPort, httpOutProxyURL, localDestination);
+				m_HttpProxy = new i2p::proxy::HTTPProxy("HTTP Proxy", httpProxyAddr, httpProxyPort, httpOutProxyURL, httpAddresshelper, localDestination);
 				m_HttpProxy->Start();
 			}
 			catch (std::exception& e)

libi2pd_client/HTTPProxy.cpp

@@ -87,6 +87,7 @@ namespace proxy {
 			std::shared_ptr<boost::asio::ip::tcp::socket> m_proxysock;
 			boost::asio::ip::tcp::resolver m_proxy_resolver;
 			std::string m_OutproxyUrl;
+			bool m_Addresshelper;
 			i2p::http::URL m_ProxyURL;
 			i2p::http::URL m_RequestURL;
 			uint8_t m_socks_buf[255+8]; // for socks request/response
@@ -95,13 +96,15 @@ namespace proxy {
 			i2p::http::HTTPReq m_ClientRequest;
 			i2p::http::HTTPRes m_ClientResponse;
 			std::stringstream m_ClientRequestBuffer;
+
 		public:
 
 			HTTPReqHandler(HTTPProxy * parent, std::shared_ptr<boost::asio::ip::tcp::socket> sock) :
 				I2PServiceHandler(parent), m_sock(sock),
 				m_proxysock(std::make_shared<boost::asio::ip::tcp::socket>(parent->GetService())),
 				m_proxy_resolver(parent->GetService()),
-				m_OutproxyUrl(parent->GetOutproxyURL()) {}
+				m_OutproxyUrl(parent->GetOutproxyURL()),
+				m_Addresshelper(parent->GetHelperSupport()) {}
 			~HTTPReqHandler() { Terminate(); }
 			void Handle () { AsyncSockRead(); } /* overload */
 	};
@@ -208,7 +211,7 @@ namespace proxy {
 	void HTTPReqHandler::SanitizeHTTPRequest(i2p::http::HTTPReq & req)
 	{
 		/* drop common headers */
-		req.RemoveHeader("Referer");
+		req.RemoveHeader("Referrer");
 		req.RemoveHeader("Via");
 		req.RemoveHeader("From");
 		req.RemoveHeader("Forwarded");
@@ -219,7 +222,11 @@ namespace proxy {
 		/* replace headers */
 		req.UpdateHeader("User-Agent", "MYOB/6.66 (AN/ON)");
 		/* add headers */
-		req.UpdateHeader("Connection", "close"); /* keep-alive conns not supported yet */
+		/* close connection, if not Connection: (U|u)pgrade (for websocket) */
+		auto h = req.GetHeader ("Connection");
+		auto x = h.find("pgrade");
+		if (!(x != std::string::npos && std::tolower(h[x - 1]) == 'u'))
+			req.UpdateHeader("Connection", "close");
 	}
 
 	/**
@@ -230,8 +237,6 @@ namespace proxy {
 	 */
 	bool HTTPReqHandler::HandleRequest()
 	{
-		std::string b64;
-
 		m_req_len = m_ClientRequest.parse(m_recv_buf);
 
 		if (m_req_len == 0)
@@ -248,10 +253,10 @@ namespace proxy {
 		m_RequestURL.parse(m_ClientRequest.uri);
 		bool m_Confirm;
 
-		if (ExtractAddressHelper(m_RequestURL, b64, m_Confirm))
+		std::string jump;
+		if (ExtractAddressHelper(m_RequestURL, jump, m_Confirm))
 		{
-			bool addresshelper; i2p::config::GetOption("httpproxy.addresshelper", addresshelper);
+			if (!m_Addresshelper)
-			if (!addresshelper)
 			{
 				LogPrint(eLogWarning, "HTTPProxy: addresshelper request rejected");
 				GenericProxyError("Invalid request", "addresshelper is not supported");
@@ -259,8 +264,8 @@ namespace proxy {
 			}
 			if (!i2p::client::context.GetAddressBook ().FindAddress (m_RequestURL.host) || m_Confirm)
 			{
-				i2p::client::context.GetAddressBook ().InsertAddress (m_RequestURL.host, b64);
+				i2p::client::context.GetAddressBook ().InsertAddress (m_RequestURL.host, jump);
-				LogPrint (eLogInfo, "HTTPProxy: added b64 from addresshelper for ", m_RequestURL.host);
+				LogPrint (eLogInfo, "HTTPProxy: added address from addresshelper for ", m_RequestURL.host);
 				std::string full_url = m_RequestURL.to_string();
 				std::stringstream ss;
 				ss << "Host " << m_RequestURL.host << " added to router's addressbook from helper. "
@@ -272,7 +277,7 @@ namespace proxy {
 			{
 				std::stringstream ss;
 				ss << "Host " << m_RequestURL.host << " <font color=red>already in router's addressbook</font>. "
-				   << "Click <a href=\"" << m_RequestURL.query << "?i2paddresshelper=" << b64 << "&update=true\">here</a> to update record.";
+				   << "Click <a href=\"" << m_RequestURL.query << "?i2paddresshelper=" << jump << "&update=true\">here</a> to update record.";
 				GenericProxyInfo("Addresshelper found", ss.str().c_str());
 				return true; /* request processed */
 			}
@@ -335,9 +340,8 @@ namespace proxy {
 			}
 		}
 		/* check dest_host really exists and inside I2P network */
-		i2p::data::IdentHash identHash;
 		if (str_rmatch(dest_host, ".i2p")) {
-			if (!i2p::client::context.GetAddressBook ().GetIdentHash (dest_host, identHash)) {
+			if (!i2p::client::context.GetAddressBook ().GetAddress (dest_host)) {
 				HostNotFound(dest_host);
 				return true; /* request processed */
 			}
@@ -349,7 +353,7 @@ namespace proxy {
 				else
 					GenericProxyError("Outproxy failure", "bad outproxy settings");
 			} else {
-				LogPrint (eLogWarning, "HTTPProxy: outproxy failure for ", dest_host, ": no outprxy enabled");
+				LogPrint (eLogWarning, "HTTPProxy: outproxy failure for ", dest_host, ": no outproxy enabled");
 				std::string message = "Host " + dest_host + " not inside I2P network, but outproxy is not enabled";
 				GenericProxyError("Outproxy failure", message.c_str());
 			}
@@ -392,7 +396,7 @@ namespace proxy {
 
 		// update User-Agent to ESR version of Firefox, same as Tor Browser below version 8, for non-HTTPS connections
 		if(m_ClientRequest.method != "CONNECT")
-			m_ClientRequest.UpdateHeader("User-Agent", "Mozilla/5.0 (Windows NT 6.1; rv:52.0) Gecko/20100101 Firefox/52.0");
+			m_ClientRequest.UpdateHeader("User-Agent", "Mozilla/5.0 (Windows NT 6.1; rv:60.0) Gecko/20100101 Firefox/60.0");
 
 		m_ClientRequest.write(m_ClientRequestBuffer);
 		m_ClientRequestBuffer << m_recv_buf.substr(m_req_len);
@@ -619,9 +623,9 @@ namespace proxy {
 		Done (shared_from_this());
 	}
 
-	HTTPProxy::HTTPProxy(const std::string& name, const std::string& address, int port, const std::string & outproxy, std::shared_ptr<i2p::client::ClientDestination> localDestination):
+	HTTPProxy::HTTPProxy(const std::string& name, const std::string& address, int port, const std::string & outproxy, bool addresshelper, std::shared_ptr<i2p::client::ClientDestination> localDestination):
 		TCPIPAcceptor (address, port, localDestination ? localDestination : i2p::client::context.GetSharedLocalDestination ()),
-		m_Name (name), m_OutproxyUrl(outproxy)
+		m_Name (name), m_OutproxyUrl (outproxy), m_Addresshelper (addresshelper)
 	{
 	}
 

libi2pd_client/HTTPProxy.h

@@ -6,12 +6,13 @@ namespace proxy {
 	class HTTPProxy: public i2p::client::TCPIPAcceptor
 	{
 		public:
-			HTTPProxy(const std::string& name, const std::string& address, int port, const std::string & outproxy, std::shared_ptr<i2p::client::ClientDestination> localDestination);
+			HTTPProxy(const std::string& name, const std::string& address, int port, const std::string & outproxy, bool addresshelper, std::shared_ptr<i2p::client::ClientDestination> localDestination);
 			HTTPProxy(const std::string& name, const std::string& address, int port, std::shared_ptr<i2p::client::ClientDestination> localDestination = nullptr) :
-				HTTPProxy(name, address, port, "", localDestination) {} ;
+				HTTPProxy(name, address, port, "", true, localDestination) {} ;
 			~HTTPProxy() {};
 
 			std::string GetOutproxyURL() const { return m_OutproxyUrl; }
+			bool GetHelperSupport() { return m_Addresshelper; }
 
 		protected:
 			// Implements TCPIPAcceptor
@@ -21,6 +22,7 @@ namespace proxy {
 		private:
 			std::string m_Name;
 			std::string m_OutproxyUrl;
+			bool m_Addresshelper;
 	};
 } // http
 } // i2p

libi2pd_client/I2CP.cpp

@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2013-2016, The PurpleI2P Project
+* Copyright (c) 2013-2019, The PurpleI2P Project
 *
 * This file is part of Purple i2pd project and licensed under BSD3
 *
@@ -63,7 +63,16 @@ namespace client
 
 	void I2CPDestination::LeaseSetCreated (const uint8_t * buf, size_t len)
 	{
-		auto ls = new i2p::data::LocalLeaseSet (m_Identity, buf, len);
+		auto ls = std::make_shared<i2p::data::LocalLeaseSet> (m_Identity, buf, len);
+		ls->SetExpirationTime (m_LeaseSetExpirationTime);
+		SetLeaseSet (ls);
+	}
+
+	void I2CPDestination::LeaseSet2Created (uint8_t storeType, const uint8_t * buf, size_t len)
+	{
+		auto ls = (storeType == i2p::data::NETDB_STORE_TYPE_ENCRYPTED_LEASESET2) ?
+			std::make_shared<i2p::data::LocalEncryptedLeaseSet2> (m_Identity, buf, len):
+			std::make_shared<i2p::data::LocalLeaseSet2> (storeType, m_Identity, buf, len);
 		ls->SetExpirationTime (m_LeaseSetExpirationTime);	
 		SetLeaseSet (ls);
 	}
@@ -361,7 +370,7 @@ namespace client
 		size_t offset = identity->FromBuffer (buf, len);
 		if (!offset)
 		{
-			LogPrint (eLogError, "I2CP: create session maformed identity");
+			LogPrint (eLogError, "I2CP: create session malformed identity");
 			SendSessionStatusMessage (3); // invalid
 			return;
 		}
@@ -512,6 +521,50 @@ namespace client
 			LogPrint (eLogError, "I2CP: unexpected sessionID ", sessionID);
 	}
 
+	void I2CPSession::CreateLeaseSet2MessageHandler (const uint8_t * buf, size_t len)
+	{
+		uint16_t sessionID = bufbe16toh (buf);
+		if (sessionID == m_SessionID)
+		{
+			size_t offset = 2;
+			if (m_Destination)
+			{
+				uint8_t storeType = buf[offset]; offset++; // store type
+				i2p::data::LeaseSet2 ls (storeType, buf + offset, len - offset); // outer layer only for encrypted
+				if (!ls.IsValid ())
+				{
+					LogPrint (eLogError, "I2CP: invalid LeaseSet2 of type ", storeType);
+					return;
+				}	
+				offset += ls.GetBufferLen ();
+				// private keys
+				int numPrivateKeys = buf[offset]; offset++;
+				uint16_t currentKeyType = 0;
+				const uint8_t * currentKey = nullptr;	
+				for (int i = 0; i < numPrivateKeys; i++)
+				{
+					if (offset + 4 > len) return;
+					uint16_t keyType = bufbe16toh (buf + offset); offset += 2; // encryption type
+					uint16_t keyLen = bufbe16toh (buf + offset); offset += 2;  // private key length
+					if (offset + keyLen > len) return;
+					if (keyType > currentKeyType)
+					{
+						currentKeyType = keyType;
+						currentKey = buf + offset;
+					}
+					offset += keyLen;
+				}				
+				// TODO: support multiple keys
+				if (currentKey)
+					m_Destination->SetEncryptionPrivateKey (currentKey);
+
+				m_Destination->LeaseSet2Created (storeType, ls.GetBuffer (), ls.GetBufferLen ()); 
+			}
+		}
+		else
+			LogPrint (eLogError, "I2CP: unexpected sessionID ", sessionID);
+	}
+
 	void I2CPSession::SendMessageMessageHandler (const uint8_t * buf, size_t len)
 	{
 		uint16_t sessionID = bufbe16toh (buf);
@@ -566,12 +619,16 @@ namespace client
 				case 1: // address
 				{
 					auto name = ExtractString (buf + 11, len - 11);
-					if (!i2p::client::context.GetAddressBook ().GetIdentHash (name, ident))
+					auto addr = i2p::client::context.GetAddressBook ().GetAddress (name);
+					if (!addr || !addr->IsIdentHash ())
 					{
+						// TODO: handle blinded addresses
 						LogPrint (eLogError, "I2CP: address ", name, " not found");
 						SendHostReplyMessage (requestID, nullptr);
 						return;
 					}
+					else
+						ident = addr->identHash;
 					break;
 				}
 				default:
@@ -704,6 +761,7 @@ namespace client
 		m_MessagesHandlers[I2CP_DESTROY_SESSION_MESSAGE] = &I2CPSession::DestroySessionMessageHandler;
 		m_MessagesHandlers[I2CP_RECONFIGURE_SESSION_MESSAGE] = &I2CPSession::ReconfigureSessionMessageHandler;
 		m_MessagesHandlers[I2CP_CREATE_LEASESET_MESSAGE] = &I2CPSession::CreateLeaseSetMessageHandler;
+		m_MessagesHandlers[I2CP_CREATE_LEASESET2_MESSAGE] = &I2CPSession::CreateLeaseSet2MessageHandler;
 		m_MessagesHandlers[I2CP_SEND_MESSAGE_MESSAGE] = &I2CPSession::SendMessageMessageHandler;
 		m_MessagesHandlers[I2CP_SEND_MESSAGE_EXPIRES_MESSAGE] = &I2CPSession::SendMessageExpiresMessageHandler;
 		m_MessagesHandlers[I2CP_HOST_LOOKUP_MESSAGE] = &I2CPSession::HostLookupMessageHandler;

libi2pd_client/I2CP.h

@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2013-2016, The PurpleI2P Project
+* Copyright (c) 2013-2019, The PurpleI2P Project
 *
 * This file is part of Purple i2pd project and licensed under BSD3
 *
@@ -36,6 +36,7 @@ namespace client
 	const uint8_t I2CP_DESTROY_SESSION_MESSAGE = 3;
 	const uint8_t I2CP_REQUEST_VARIABLE_LEASESET_MESSAGE = 37;
 	const uint8_t I2CP_CREATE_LEASESET_MESSAGE = 4;
+	const uint8_t I2CP_CREATE_LEASESET2_MESSAGE = 41;
 	const uint8_t I2CP_SEND_MESSAGE_MESSAGE = 5;
 	const uint8_t I2CP_SEND_MESSAGE_EXPIRES_MESSAGE = 36;
 	const uint8_t I2CP_MESSAGE_PAYLOAD_MESSAGE = 31;
@@ -68,6 +69,7 @@ namespace client
 
 			void SetEncryptionPrivateKey (const uint8_t * key);
 			void LeaseSetCreated (const uint8_t * buf, size_t len); // called from I2CPSession
+			void LeaseSet2Created (uint8_t storeType, const uint8_t * buf, size_t len); // called from I2CPSession
 			void SendMsgTo (const uint8_t * payload, size_t len, const i2p::data::IdentHash& ident, uint32_t nonce); // called from I2CPSession
 
 			// implements LocalDestination
@@ -126,6 +128,7 @@ namespace client
 			void DestroySessionMessageHandler (const uint8_t * buf, size_t len);
 			void ReconfigureSessionMessageHandler (const uint8_t * buf, size_t len);
 			void CreateLeaseSetMessageHandler (const uint8_t * buf, size_t len);
+			void CreateLeaseSet2MessageHandler (const uint8_t * buf, size_t len);
 			void SendMessageMessageHandler (const uint8_t * buf, size_t len);
 			void SendMessageExpiresMessageHandler (const uint8_t * buf, size_t len);
 			void HostLookupMessageHandler (const uint8_t * buf, size_t len);

libi2pd_client/I2PService.cpp

@@ -101,9 +101,9 @@ namespace client
 
 	void I2PService::CreateStream (StreamRequestComplete streamRequestComplete, const std::string& dest, int port) {
 		assert(streamRequestComplete);
-		i2p::data::IdentHash identHash;
+		auto address = i2p::client::context.GetAddressBook ().GetAddress (dest);
-		if (i2p::client::context.GetAddressBook ().GetIdentHash (dest, identHash))
+		if (address)
-			CreateStream(streamRequestComplete, identHash, port);
+			CreateStream(streamRequestComplete, address, port);
 		else
 		{
 			LogPrint (eLogWarning, "I2PService: Remote destination not found: ", dest);
@@ -111,27 +111,31 @@ namespace client
 		}
 	}
 
-	void I2PService::CreateStream(StreamRequestComplete streamRequestComplete, const i2p::data::IdentHash & identHash, int port)
+	void I2PService::CreateStream(StreamRequestComplete streamRequestComplete, std::shared_ptr<const Address> address, int port)
 	{
-		if(m_ConnectTimeout)
+		if(m_ConnectTimeout && !m_LocalDestination->IsReady())
 		{
-			if(m_LocalDestination->IsReady())
+			AddReadyCallback([this, streamRequestComplete, address, port] (const boost::system::error_code & ec) {
-				m_LocalDestination->CreateStream (streamRequestComplete, identHash, port);
-			else
-			{
-				AddReadyCallback([this, streamRequestComplete, identHash, port] (const boost::system::error_code & ec) {
 					if(ec)
 					{
 						LogPrint(eLogWarning, "I2PService::CeateStream() ", ec.message());
 						streamRequestComplete(nullptr);
 					}
 					else
-							this->m_LocalDestination->CreateStream(streamRequestComplete, identHash, port);
+					{	if (address->IsIdentHash ())
+							this->m_LocalDestination->CreateStream(streamRequestComplete, address->identHash, port);
+						else
+							this->m_LocalDestination->CreateStream (streamRequestComplete, address->blindedPublicKey, port);	
+					}
 				});
 		}
-		}
 		else
-			m_LocalDestination->CreateStream(streamRequestComplete, identHash, port);
+		{	
+			if (address->IsIdentHash ())
+				m_LocalDestination->CreateStream (streamRequestComplete, address->identHash, port);
+			else
+				m_LocalDestination->CreateStream (streamRequestComplete, address->blindedPublicKey, port);
+		}
 	}
 
 	TCPIPPipe::TCPIPPipe(I2PService * owner, std::shared_ptr<boost::asio::ip::tcp::socket> upstream, std::shared_ptr<boost::asio::ip::tcp::socket> downstream) : I2PServiceHandler(owner), m_up(upstream), m_down(downstream)

libi2pd_client/I2PService.h

@@ -8,6 +8,7 @@
 #include <boost/asio.hpp>
 #include "Destination.h"
 #include "Identity.h"
+#include "AddressBook.h"
 
 namespace i2p
 {
@@ -49,7 +50,7 @@ namespace client
 				m_LocalDestination = dest;
 			}
 			void CreateStream (StreamRequestComplete streamRequestComplete, const std::string& dest, int port = 0);
-			void CreateStream(StreamRequestComplete complete, const i2p::data::IdentHash & ident, int port);
+			void CreateStream(StreamRequestComplete complete, std::shared_ptr<const Address> address, int port);
 			inline boost::asio::io_service& GetService () { return m_LocalDestination->GetService (); }
 
 			virtual void Start () = 0;

libi2pd_client/I2PTunnel.cpp

@@ -256,7 +256,13 @@ namespace client
 					{
 						if (!m_ConnectionSent && !line.compare(0, 10, "Connection"))
 						{
+							/* close connection, if not Connection: (U|u)pgrade (for websocket) */
+							auto x = line.find("pgrade"); 
+							if (x != std::string::npos && std::tolower(line[x - 1]) == 'u')
+								m_OutHeader << line << "\r\n";
+							else
 								m_OutHeader << "Connection: close\r\n";
+
 							m_ConnectionSent = true;
 						}
 						else if (!m_ProxyConnectionSent && !line.compare(0, 16, "Proxy-Connection"))
@@ -387,15 +393,15 @@ namespace client
 	class I2PClientTunnelHandler: public I2PServiceHandler, public std::enable_shared_from_this<I2PClientTunnelHandler>
 	{
 		public:
-			I2PClientTunnelHandler (I2PClientTunnel * parent, i2p::data::IdentHash destination,
+			I2PClientTunnelHandler (I2PClientTunnel * parent, std::shared_ptr<const Address> address,
 				int destinationPort, std::shared_ptr<boost::asio::ip::tcp::socket> socket):
-				I2PServiceHandler(parent), m_DestinationIdentHash(destination),
+				I2PServiceHandler(parent), m_Address(address),
 				m_DestinationPort (destinationPort), m_Socket(socket) {};
 			void Handle();
 			void Terminate();
 		private:
 			void HandleStreamRequestComplete (std::shared_ptr<i2p::stream::Stream> stream);
-			i2p::data::IdentHash m_DestinationIdentHash;
+			std::shared_ptr<const Address> m_Address;
 			int m_DestinationPort;
 			std::shared_ptr<boost::asio::ip::tcp::socket> m_Socket;
 	};
@@ -404,7 +410,7 @@ namespace client
 	{
 		GetOwner()->CreateStream (
 			std::bind (&I2PClientTunnelHandler::HandleStreamRequestComplete, shared_from_this(), std::placeholders::_1),
-			m_DestinationIdentHash, m_DestinationPort);
+			m_Address, m_DestinationPort);
 	}
 
 	void I2PClientTunnelHandler::HandleStreamRequestComplete (std::shared_ptr<i2p::stream::Stream> stream)
@@ -439,43 +445,39 @@ namespace client
 	I2PClientTunnel::I2PClientTunnel (const std::string& name, const std::string& destination,
 		const std::string& address, int port, std::shared_ptr<ClientDestination> localDestination, int destinationPort):
 		TCPIPAcceptor (address, port, localDestination), m_Name (name), m_Destination (destination),
-		m_DestinationIdentHash (nullptr), m_DestinationPort (destinationPort)
+		m_DestinationPort (destinationPort)
 	{
 	}
 
 	void I2PClientTunnel::Start ()
 	{
 		TCPIPAcceptor::Start ();
-		GetIdentHash();
+		GetAddress ();
 	}
 
 	void I2PClientTunnel::Stop ()
 	{
 		TCPIPAcceptor::Stop();
-		auto *originalIdentHash = m_DestinationIdentHash;
+		m_Address = nullptr;
-		m_DestinationIdentHash = nullptr;
-		delete originalIdentHash;
 	}
 
 	/* HACK: maybe we should create a caching IdentHash provider in AddressBook */
-	const i2p::data::IdentHash * I2PClientTunnel::GetIdentHash ()
+	std::shared_ptr<const Address> I2PClientTunnel::GetAddress () 
 	{
-		if (!m_DestinationIdentHash)
+		if (!m_Address)
 		{
-			i2p::data::IdentHash identHash;
+			m_Address = i2p::client::context.GetAddressBook ().GetAddress (m_Destination);
-			if (i2p::client::context.GetAddressBook ().GetIdentHash (m_Destination, identHash))
+			if (!m_Address)
-				m_DestinationIdentHash = new i2p::data::IdentHash (identHash);
-			else
 				LogPrint (eLogWarning, "I2PTunnel: Remote destination ", m_Destination, " not found");
 		}
-		return m_DestinationIdentHash;
+		return m_Address;
 	}
 
 	std::shared_ptr<I2PServiceHandler> I2PClientTunnel::CreateHandler(std::shared_ptr<boost::asio::ip::tcp::socket> socket)
 	{
-		const i2p::data::IdentHash *identHash = GetIdentHash();
+		auto address = GetAddress ();
-		if (identHash)
+		if (address)
-			return  std::make_shared<I2PClientTunnelHandler>(this, *identHash, m_DestinationPort, socket);
+			return  std::make_shared<I2PClientTunnelHandler>(this, address, m_DestinationPort, socket);
 		else
 			return nullptr;
 	}
@@ -808,9 +810,9 @@ namespace client
 
 	void I2PUDPClientTunnel::TryResolving() {
 		LogPrint(eLogInfo, "UDP Tunnel: Trying to resolve ", m_RemoteDest);
-		i2p::data::IdentHash * h = new i2p::data::IdentHash;
 
-		while(!context.GetAddressBook().GetIdentHash(m_RemoteDest, *h) && !m_cancel_resolve)
+		std::shared_ptr<const Address> addr;
+		while(!(addr = context.GetAddressBook().GetAddress(m_RemoteDest)) && !m_cancel_resolve)
 		{
 			LogPrint(eLogWarning, "UDP Tunnel: failed to lookup ", m_RemoteDest);
 			std::this_thread::sleep_for(std::chrono::seconds(1));
@@ -820,7 +822,13 @@ namespace client
 			LogPrint(eLogError, "UDP Tunnel: lookup of ", m_RemoteDest, " was cancelled");
 			return;
 		}
-		m_RemoteIdent = h;
+		if (!addr || !addr->IsIdentHash ())
+		{
+			LogPrint(eLogError, "UDP Tunnel: ", m_RemoteDest, " not found");
+			return;
+		}			
+		m_RemoteIdent = new i2p::data::IdentHash;
+		*m_RemoteIdent = addr->identHash;
 		LogPrint(eLogInfo, "UDP Tunnel: resolved ", m_RemoteDest, " to ", m_RemoteIdent->ToBase32());
 	}
 

libi2pd_client/I2PTunnel.h

@@ -13,6 +13,7 @@
 #include "Datagram.h"
 #include "Streaming.h"
 #include "I2PService.h"
+#include "AddressBook.h"
 
 namespace i2p
 {
@@ -129,11 +130,11 @@ namespace client
 			const char* GetName() { return m_Name.c_str (); }
 
 		private:
-			const i2p::data::IdentHash * GetIdentHash ();
+			std::shared_ptr<const Address> GetAddress ();
 
 		private:
 			std::string m_Name, m_Destination;
-			const i2p::data::IdentHash * m_DestinationIdentHash;
+			std::shared_ptr<const Address> m_Address;
 			int m_DestinationPort;
 	};
 

libi2pd_client/MatchedDestination.cpp

@@ -14,13 +14,13 @@ namespace client
 
 	void MatchedTunnelDestination::ResolveCurrentLeaseSet()
 	{
-		if(i2p::client::context.GetAddressBook().GetIdentHash(m_RemoteName, m_RemoteIdent))
+		auto addr = i2p::client::context.GetAddressBook().GetAddress (m_RemoteName);	
+		if(addr && addr->IsIdentHash ())
 		{
+			m_RemoteIdent = addr->identHash;	
 			auto ls = FindLeaseSet(m_RemoteIdent);
 			if(ls)
-			{
 				HandleFoundCurrentLeaseSet(ls);
-			}
 			else
 				RequestDestination(m_RemoteIdent, std::bind(&MatchedTunnelDestination::HandleFoundCurrentLeaseSet, this, std::placeholders::_1));
 		}

libi2pd_client/SAM.cpp

@@ -360,6 +360,24 @@ namespace client
 			forward = std::make_shared<boost::asio::ip::udp::endpoint>(addr, port);
 		}
 		
+		//ensure we actually received a destination
+		if (destination.empty())
+		{
+			SendMessageReply (SAM_SESSION_STATUS_INVALID_KEY, strlen(SAM_SESSION_STATUS_INVALID_KEY), true);
+			return;
+		}
+
+		if (destination != SAM_VALUE_TRANSIENT)
+		{	
+			//ensure it's a base64 string
+			i2p::data::PrivateKeys keys;
+			if (!keys.FromBase64(destination))
+			{
+				SendMessageReply(SAM_SESSION_STATUS_INVALID_KEY, strlen(SAM_SESSION_STATUS_INVALID_KEY), true);
+				return;
+			}
+		}		
+
 		// create destination
 		auto session = m_Owner.CreateSession (id, destination == SAM_VALUE_TRANSIENT ? "" : destination, &params);
 		if (session)
@@ -449,7 +467,7 @@ namespace client
 			size_t l = dest->FromBase64(destination);
 			if (l > 0)
 			{
-				context.GetAddressBook().InsertAddress(dest);
+				context.GetAddressBook().InsertFullAddress(dest);
 				auto leaseSet = session->localDestination->FindLeaseSet(dest->GetIdentHash());
 				if (leaseSet)
 					Connect(leaseSet);
@@ -461,7 +479,7 @@ namespace client
 				}
 			}
 			else
-				SendMessageReply(SAM_SESSION_STATUS_INVALID_KEY, strlen(SAM_SESSION_STATUS_INVALID_KEY), true);
+				SendMessageReply (SAM_STREAM_STATUS_INVALID_KEY, strlen(SAM_STREAM_STATUS_INVALID_KEY), true);
 		}
 		else
 			SendMessageReply (SAM_STREAM_STATUS_INVALID_ID, strlen(SAM_STREAM_STATUS_INVALID_ID), true);
@@ -558,11 +576,22 @@ namespace client
 		i2p::data::CryptoKeyType cryptoType = i2p::data::CRYPTO_KEY_TYPE_ELGAMAL;
 		auto it = params.find (SAM_PARAM_SIGNATURE_TYPE);
 		if (it != params.end ())
-				// TODO: extract string values
+		{
-			signatureType = std::stoi(it->second);
+			if (!m_Owner.ResolveSignatureType (it->second, signatureType))
+				LogPrint (eLogWarning, "SAM: ", SAM_PARAM_SIGNATURE_TYPE, " is invalid ", it->second);	
+		}
 		it = params.find (SAM_PARAM_CRYPTO_TYPE);
 		if (it != params.end ())
+		{
+			try
+			{	
 				cryptoType = std::stoi(it->second);
+			}
+			catch (const std::exception& ex) 
+			{
+				LogPrint (eLogWarning, "SAM: ", SAM_PARAM_CRYPTO_TYPE, "error: ", ex.what ());	
+			}	
+		}	
 		auto keys = i2p::data::PrivateKeys::CreateRandomKeys (signatureType, cryptoType);
 #ifdef _MSC_VER
 		size_t l = sprintf_s (m_Buffer, SAM_SOCKET_BUFFER_SIZE, SAM_DEST_REPLY,
@@ -581,22 +610,29 @@ namespace client
 		ExtractParams (buf, params);
 		std::string& name = params[SAM_PARAM_NAME];
 		std::shared_ptr<const i2p::data::IdentityEx> identity;
-		i2p::data::IdentHash ident;
+		std::shared_ptr<const Address> addr;
 		auto session = m_Owner.FindSession(m_ID);
 		auto dest = session == nullptr ? context.GetSharedLocalDestination() : session->localDestination;
 		if (name == "ME")
 			SendNamingLookupReply (dest->GetIdentity ());
-		else if ((identity = context.GetAddressBook ().GetAddress (name)) != nullptr)
+		else if ((identity = context.GetAddressBook ().GetFullAddress (name)) != nullptr)
 			SendNamingLookupReply (identity);
-		else if (context.GetAddressBook ().GetIdentHash (name, ident))
+		else if ((addr = context.GetAddressBook ().GetAddress (name)))
 		{
-			auto leaseSet = dest->FindLeaseSet (ident);
+			if (addr->IsIdentHash ())
+			{
+				auto leaseSet = dest->FindLeaseSet (addr->identHash);
 				if (leaseSet)
 					SendNamingLookupReply (leaseSet->GetIdentity ());
 				else
-				dest->RequestDestination (ident,
+					dest->RequestDestination (addr->identHash,
 						std::bind (&SAMSocket::HandleNamingLookupLeaseSetRequestComplete,
-					shared_from_this (), std::placeholders::_1, ident));
+						shared_from_this (), std::placeholders::_1, name));	
+			}
+			else
+				dest->RequestDestinationWithEncryptedLeaseSet (addr->blindedPublicKey,
+					std::bind (&SAMSocket::HandleNamingLookupLeaseSetRequestComplete,
+					shared_from_this (), std::placeholders::_1, name));	
 		}
 		else
 		{
@@ -621,22 +657,20 @@ namespace client
 		SendMessageReply (m_Buffer, len, true);
 	}
 
-	void SAMSocket::HandleNamingLookupLeaseSetRequestComplete (std::shared_ptr<i2p::data::LeaseSet> leaseSet, i2p::data::IdentHash ident)
+	void SAMSocket::HandleNamingLookupLeaseSetRequestComplete (std::shared_ptr<i2p::data::LeaseSet> leaseSet, std::string name)
 	{
 		if (leaseSet)
 		{
-			context.GetAddressBook ().InsertAddress (leaseSet->GetIdentity ());
+			context.GetAddressBook ().InsertFullAddress (leaseSet->GetIdentity ());
 			SendNamingLookupReply (leaseSet->GetIdentity ());
 		}
 		else
 		{
-			LogPrint (eLogError, "SAM: naming lookup failed. LeaseSet for ", ident.ToBase32 (), " not found");
+			LogPrint (eLogError, "SAM: naming lookup failed. LeaseSet for ", name, " not found");
 #ifdef _MSC_VER
-			size_t len = sprintf_s (m_Buffer, SAM_SOCKET_BUFFER_SIZE, SAM_NAMING_REPLY_INVALID_KEY,
+			size_t len = sprintf_s (m_Buffer, SAM_SOCKET_BUFFER_SIZE, SAM_NAMING_REPLY_INVALID_KEY, name.c_str());
-				context.GetAddressBook ().ToAddress (ident).c_str());
 #else
-			size_t len = snprintf (m_Buffer, SAM_SOCKET_BUFFER_SIZE, SAM_NAMING_REPLY_INVALID_KEY,
+			size_t len = snprintf (m_Buffer, SAM_SOCKET_BUFFER_SIZE, SAM_NAMING_REPLY_INVALID_KEY, name.c_str());
-				context.GetAddressBook ().ToAddress (ident).c_str());
 #endif
 			SendMessageReply (m_Buffer, len, false);
 		}
@@ -815,7 +849,7 @@ namespace client
 			m_SocketType = eSAMSocketTypeStream;
 			m_IsAccepting = false;
 			m_Stream = stream;
-			context.GetAddressBook ().InsertAddress (stream->GetRemoteIdentity ());
+			context.GetAddressBook ().InsertFullAddress (stream->GetRemoteIdentity ());
 			auto session = m_Owner.FindSession (m_ID);
 			if (session)
 			{
@@ -921,7 +955,17 @@ namespace client
 	SAMBridge::SAMBridge (const std::string& address, int port):
 		m_IsRunning (false), m_Thread (nullptr),
 		m_Acceptor (m_Service, boost::asio::ip::tcp::endpoint(boost::asio::ip::address::from_string(address), port)),
-		m_DatagramEndpoint (boost::asio::ip::address::from_string(address), port-1), m_DatagramSocket (m_Service, m_DatagramEndpoint)
+		m_DatagramEndpoint (boost::asio::ip::address::from_string(address), port-1), m_DatagramSocket (m_Service, m_DatagramEndpoint),
+		m_SignatureTypes
+		{
+			{"DSA_SHA1", i2p::data::SIGNING_KEY_TYPE_DSA_SHA1},
+			{"ECDSA_SHA256_P256", i2p::data::SIGNING_KEY_TYPE_ECDSA_SHA256_P256},
+			{"ECDSA_SHA256_P384", i2p::data::SIGNING_KEY_TYPE_ECDSA_SHA384_P384},
+			{"ECDSA_SHA256_P521", i2p::data::SIGNING_KEY_TYPE_ECDSA_SHA512_P521},
+			{"EdDSA_SHA512_Ed25519", i2p::data::SIGNING_KEY_TYPE_EDDSA_SHA512_ED25519},
+			{"GOST_GOSTR3411256_GOSTR3410CRYPTOPROA", i2p::data::SIGNING_KEY_TYPE_GOSTR3410_CRYPTO_PRO_A_GOSTR3411_256},
+			{"GOST_GOSTR3411512_GOSTR3410TC26A512", i2p::data::SIGNING_KEY_TYPE_GOSTR3410_TC26_A_512_GOSTR3411_512}
+		}
 	{
 	}
 
@@ -942,7 +986,16 @@ namespace client
 	void SAMBridge::Stop ()
 	{
 		m_IsRunning = false;
+
+		try
+		{
 			m_Acceptor.cancel ();
+		}
+		catch (const std::exception& ex)
+		{
+			LogPrint (eLogError, "SAM: runtime exception: ", ex.what ());
+		}
+
 		for (auto& it: m_Sessions)
 			it.second->CloseStreams ();
 		m_Sessions.clear ();
@@ -1028,15 +1081,8 @@ namespace client
 				auto it = params->find (SAM_PARAM_SIGNATURE_TYPE);
 				if (it != params->end ())
 				{	
-					// TODO: extract string values
+					if (!ResolveSignatureType (it->second, signatureType))
-					try
+						LogPrint (eLogWarning, "SAM: ", SAM_PARAM_SIGNATURE_TYPE, " is invalid ", it->second);	
-					{	
-						signatureType = std::stoi(it->second);
-					}
-					catch (const std::exception& ex) 
-					{
-						LogPrint (eLogWarning, "SAM: ", SAM_PARAM_SIGNATURE_TYPE, "error: ", ex.what ());	
-					}		
 				}	
 				it = params->find (SAM_PARAM_CRYPTO_TYPE);
 				if (it != params->end ())
@@ -1166,5 +1212,28 @@ namespace client
 		else
 			LogPrint (eLogError, "SAM: datagram receive error: ", ecode.message ());
 	}
+
+	bool SAMBridge::ResolveSignatureType (const std::string& name, i2p::data::SigningKeyType& type) const
+	{
+		try
+		{	
+			type = std::stoi (name);
+		}
+		catch (const std::invalid_argument& ex)
+		{
+			// name is not numeric, resolving
+			auto it = m_SignatureTypes.find (name);
+			if (it != m_SignatureTypes.end ())
+				type = it->second;
+			else
+				return false;
+		}
+		catch (const std::exception& ex) 
+		{
+			return false;		
+		}	
+		// name has been resolved 
+		return true;	
+	}
 }
 }

libi2pd_client/SAM.h

@@ -35,6 +35,7 @@ namespace client
 	const char SAM_STREAM_CONNECT[] = "STREAM CONNECT";
 	const char SAM_STREAM_STATUS_OK[] = "STREAM STATUS RESULT=OK\n";
 	const char SAM_STREAM_STATUS_INVALID_ID[] = "STREAM STATUS RESULT=INVALID_ID\n";
+	const char SAM_STREAM_STATUS_INVALID_KEY[] = "STREAM STATUS RESULT=INVALID_KEY\n";
 	const char SAM_STREAM_STATUS_CANT_REACH_PEER[] = "STREAM STATUS RESULT=CANT_REACH_PEER\n";
 	const char SAM_STREAM_STATUS_I2P_ERROR[] = "STREAM STATUS RESULT=I2P_ERROR\n";
 	const char SAM_STREAM_ACCEPT[] = "STREAM ACCEPT";
@@ -123,7 +124,7 @@ namespace client
 			void Connect (std::shared_ptr<const i2p::data::LeaseSet> remote);
 			void HandleConnectLeaseSetRequestComplete (std::shared_ptr<i2p::data::LeaseSet> leaseSet);
 			void SendNamingLookupReply (std::shared_ptr<const i2p::data::IdentityEx> identity);
-			void HandleNamingLookupLeaseSetRequestComplete (std::shared_ptr<i2p::data::LeaseSet> leaseSet, i2p::data::IdentHash ident);
+			void HandleNamingLookupLeaseSetRequestComplete (std::shared_ptr<i2p::data::LeaseSet> leaseSet, std::string name);
 			void HandleSessionReadinessCheckTimer (const boost::system::error_code& ecode);
 			void SendSessionCreateReplyOk ();
 
@@ -184,6 +185,8 @@ namespace client
 
 			void RemoveSocket(const std::shared_ptr<SAMSocket> & socket);
 		
+			 bool ResolveSignatureType (const std::string& name, i2p::data::SigningKeyType& type) const;
+
 		private:
 
 			void Run ();
@@ -207,6 +210,7 @@ namespace client
 			mutable std::mutex m_OpenSocketsMutex;
 			std::list<std::shared_ptr<SAMSocket> > m_OpenSockets;
 			uint8_t m_DatagramReceiveBuffer[i2p::datagram::MAX_DATAGRAM_SIZE+1];
+			std::map<std::string, i2p::data::SigningKeyType> m_SignatureTypes;
 
 		public:
 

qt/i2pd_qt/data/website.i2pd.i2pd.appdata.xml

@@ -35,6 +35,8 @@
   <translation type="qt" />
 
   <releases>
+      <release version="2.25.0" date="2019-05-09" />
+      <release version="2.24.0" date="2019-03-21" />	
       <release version="2.23.0" date="2019-01-21" />
       <release version="2.22.0" date="2018-11-09" />
       <release version="2.21.1" date="2018-10-22" />