diff --git a/Crypto.cpp b/Crypto.cpp
index 42514857..f9478646 100644
--- a/Crypto.cpp
+++ b/Crypto.cpp
@@ -224,7 +224,7 @@ namespace crypto
 	
 // DH
 	
-	DHKeys::DHKeys (): m_IsUpdated (true)
+	DHKeys::DHKeys ()
 	{
 		m_DH = DH_new ();
 		DH_set0_pqg (m_DH, BN_dup (elgp), NULL, BN_dup (elgg));
@@ -236,7 +236,7 @@ namespace crypto
 		DH_free (m_DH);
 	}	
 
-	void DHKeys::GenerateKeys (uint8_t * priv, uint8_t * pub)
+	void DHKeys::GenerateKeys ()
 	{
 		BIGNUM * priv_key = NULL, * pub_key = NULL;	
 #if !defined(__x86_64__) // use short exponent for non x64 
@@ -261,22 +261,7 @@ namespace crypto
 			DH_get0_key (m_DH, (const BIGNUM **)&pub_key, (const BIGNUM **)&priv_key);
 		}	
 
-		if (priv) bn2buf (priv_key, priv, 256);
-		if (pub) bn2buf (pub_key, pub, 256);
-		m_IsUpdated = true;
-	}	
-
-	const uint8_t * DHKeys::GetPublicKey () 
-	{
-		if (m_IsUpdated)
-		{	
-			const BIGNUM * priv_key, * pub_key;	
-			DH_get0_key (m_DH, &pub_key, &priv_key);
-			bn2buf (pub_key, m_PublicKey, 256);
-			DH_set0_key (m_DH, NULL, NULL);
-			m_IsUpdated= false;
-		}	
-		return m_PublicKey;
+		bn2buf (pub_key, m_PublicKey, 256);
 	}	
 	
 	void DHKeys::Agree (const uint8_t * pub, uint8_t * shared)
diff --git a/Crypto.h b/Crypto.h
index 115fefda..476d2a26 100644
--- a/Crypto.h
+++ b/Crypto.h
@@ -36,15 +36,14 @@ namespace crypto
 			DHKeys ();
 			~DHKeys ();
 
-			void GenerateKeys (uint8_t * priv = nullptr, uint8_t * pub = nullptr);
-			const uint8_t * GetPublicKey ();
+			void GenerateKeys ();
+			const uint8_t * GetPublicKey () const { return m_PublicKey; };
 			void Agree (const uint8_t * pub, uint8_t * shared);
 			
 		private:
 
 			DH * m_DH;
 			uint8_t m_PublicKey[256];
-			bool m_IsUpdated;
 	};	
 	
 	// ElGamal
diff --git a/docs/building/windows.md b/docs/building/windows.md
index 0aa76877..7cc09cb8 100644
--- a/docs/building/windows.md
+++ b/docs/building/windows.md
@@ -30,16 +30,16 @@ Where $ARCH is `i686` or `x86_64` (matching your system).
 - Open MSYS2 Shell (from Start menu).
 - Install all prerequisites and download i2pd source:
 
-	export ARCH='i686'     # or 'x86_64'
-	export MINGW='mingw32' # or 'mingw64'
-	pacman -S mingw-w64-$ARCH-boost mingw-w64-$ARCH-openssl mingw-w64-$ARCH-gcc git make
-	mkdir -p /c/dev/i2pd
-	cd /c/dev/i2pd
-	git clone https://github.com/PurpleI2P/i2pd.git
-	cd i2pd
-	# we need compiler on PATH which is usually heavily cluttered on Windows
-	export PATH=/$MINGW/bin:/usr/bin
-	make
+        export ARCH='i686'     # or 'x86_64'
+        export MINGW='mingw32' # or 'mingw64'
+        pacman -S mingw-w64-$ARCH-boost mingw-w64-$ARCH-openssl mingw-w64-$ARCH-gcc git make
+        mkdir -p /c/dev/i2pd
+        cd /c/dev/i2pd
+        git clone https://github.com/PurpleI2P/i2pd.git
+        cd i2pd
+        # we need compiler on PATH which is usually heavily cluttered on Windows
+        export PATH=/$MINGW/bin:/usr/bin
+        make
 
 ### Caveats
 
diff --git a/docs/usage.md b/docs/usage.md
index a4bcbb77..1ce9eed6 100644
--- a/docs/usage.md
+++ b/docs/usage.md
@@ -48,7 +48,7 @@ Enable/disable i2pd to be started on bootup:
 
 ## Configuring i2pd
 
-See [configuration page](i2pd.readthedocs.io/page/configuration.html).
+See [configuration documentation](/page/configuration.html).
 
 
 ## Browsing and hosting websites