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separate decryption between own record and other records

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orignal 2021-07-02 13:20:24 -04:00
parent ff0e23d2c4
commit 8b35ce3320
3 changed files with 42 additions and 18 deletions
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23
libi2pd/TunnelConfig.cpp
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@ -147,5 +147,28 @@ namespace tunnel
}
MixHash (encrypted, ECIES_BUILD_REQUEST_RECORD_CLEAR_TEXT_SIZE + 16); // h = SHA256(h || ciphertext)
}
bool TunnelHopConfig::DecryptBuildResponseRecord (const uint8_t * encrypted, uint8_t * clearText)
{
if (IsECIES ())
{
uint8_t nonce[12];
memset (nonce, 0, 12);
if (!i2p::crypto::AEADChaCha20Poly1305 (encrypted, TUNNEL_BUILD_RECORD_SIZE - 16,
m_H, 32, m_CK, nonce, clearText, TUNNEL_BUILD_RECORD_SIZE - 16, false)) // decrypt
{
LogPrint (eLogWarning, "Tunnel: Response AEAD decryption failed");
return false;
}
}
else
{
i2p::crypto::CBCDecryption decryption;
decryption.SetKey (replyKey);
decryption.SetIV (replyIV);
decryption.Decrypt (encrypted, TUNNEL_BUILD_RECORD_SIZE, clearText);
}
return true;
}
}
}