mirrors/i2pd
2
0
Fork 0
mirror of https://github.com/PurpleI2P/i2pd synced 2024-11-10 08:00:38 +03:00
Code Issues Packages Projects Releases Wiki Activity

check token in SessionRequest

Browse Source
This commit is contained in:
orignal 2022-03-31 21:07:51 -04:00
parent 2fef595b83
commit 81207999eb
1 changed files with 8 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
libi2pd/SSU2.cpp
View File

@ -239,6 +239,14 @@ namespace transport
uint8_t headerX[48]; uint8_t headerX[48];
i2p::crypto::ChaCha20 (buf + 16, 48, i2p::context.GetSSU2IntroKey (), nonce, headerX); i2p::crypto::ChaCha20 (buf + 16, 48, i2p::context.GetSSU2IntroKey (), nonce, headerX);
memcpy (&m_DestConnID, headerX, 8); memcpy (&m_DestConnID, headerX, 8);
uint64_t token;
memcpy (&token, headerX + 8, 8);
if (!token || token != m_Server.GetIncomingToken (m_RemoteEndpoint))
{
LogPrint (eLogDebug, "SSU2: SessionRequest token mismatch. Retry");
SendRetry ();
return;
}
// KDF for session request // KDF for session request
m_NoiseState->MixHash ( { {header.buf, 16}, {headerX, 16} } ); // h = SHA256(h || header) m_NoiseState->MixHash ( { {header.buf, 16}, {headerX, 16} } ); // h = SHA256(h || header)
m_NoiseState->MixHash (headerX + 16, 32); // h = SHA256(h || aepk); m_NoiseState->MixHash (headerX + 16, 32); // h = SHA256(h || aepk);