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use AES-NI for transit tunnel encryption

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orignal 2014-05-09 07:59:40 -04:00
parent 95013e95a9
commit 61147def94
2 changed files with 10 additions and 15 deletions
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16
TransitTunnel.cpp
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@ -17,22 +17,20 @@ namespace tunnel
m_TunnelID (receiveTunnelID), m_NextTunnelID (nextTunnelID),
m_NextIdent (nextIdent), m_NumTransmittedBytes (0)
{
memcpy (m_LayerKey, layerKey, 32);
memcpy (m_IVKey, ivKey, 32);
m_ECBEncryption.SetKey (ivKey);
m_CBCEncryption.SetKey (layerKey);
}
void TransitTunnel::EncryptTunnelMsg (I2NPMessage * tunnelMsg)
{
uint8_t * payload = tunnelMsg->GetPayload () + 4;
m_ECBEncryption.SetKey (m_IVKey, 32);
m_ECBEncryption.ProcessData(payload, payload, 16); // iv
m_ECBEncryption.Encrypt ((i2p::crypto::ChipherBlock *)payload, (i2p::crypto::ChipherBlock *)payload); // iv
m_CBCEncryption.SetKeyWithIV (m_LayerKey, 32, payload);
m_CBCEncryption.ProcessData(payload + 16, payload + 16, TUNNEL_DATA_ENCRYPTED_SIZE); // payload
m_ECBEncryption.SetKey (m_IVKey, 32);
m_ECBEncryption.ProcessData(payload, payload, 16); // double iv encryption
m_CBCEncryption.SetIV (payload);
m_CBCEncryption.Encrypt (payload + 16, TUNNEL_DATA_ENCRYPTED_SIZE, payload + 16); // payload
m_ECBEncryption.Encrypt((i2p::crypto::ChipherBlock *)payload, (i2p::crypto::ChipherBlock *)payload); // double iv encryption
}
void TransitTunnel::HandleTunnelDataMsg (i2p::I2NPMessage * tunnelMsg)