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DecryptRecord per tunnel hop

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orignal
2021-07-07 21:16:30 -04:00
parent 847225c6bf
commit ed0c2e68a5
3 changed files with 41 additions and 27 deletions
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12
libi2pd/Tunnel.cpp
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@@ -78,18 +78,14 @@ namespace tunnel
}
// decrypt real records
i2p::crypto::CBCDecryption decryption;
hop = m_Config->GetLastHop ()->prev;
while (hop)
{
decryption.SetKey (hop->replyKey);
// decrypt records after current hop
TunnelHopConfig * hop1 = hop->next;
while (hop1)
{
decryption.SetIV (hop->replyIV);
uint8_t * record = records + hop1->recordIndex*TUNNEL_BUILD_RECORD_SIZE;
decryption.Decrypt(record, TUNNEL_BUILD_RECORD_SIZE, record);
hop->DecryptRecord (records, hop1->recordIndex);
hop1 = hop1->next;
}
hop = hop->prev;
@@ -132,11 +128,7 @@ namespace tunnel
{
auto idx = hop1->recordIndex;
if (idx >= 0 && idx < msg[0])
{
uint8_t * record = msg + 1 + idx*TUNNEL_BUILD_RECORD_SIZE;
decryption.SetIV (hop->replyIV);
decryption.Decrypt(record, TUNNEL_BUILD_RECORD_SIZE, record);
}
hop->DecryptRecord (msg + 1, idx);
else
LogPrint (eLogWarning, "Tunnel: hop index ", idx, " is out of range");
hop1 = hop1->prev;