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@ -17,22 +17,20 @@ namespace tunnel
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m_TunnelID (receiveTunnelID), m_NextTunnelID (nextTunnelID),
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m_TunnelID (receiveTunnelID), m_NextTunnelID (nextTunnelID),
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m_NextIdent (nextIdent), m_NumTransmittedBytes (0)
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m_NextIdent (nextIdent), m_NumTransmittedBytes (0)
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{
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{
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memcpy (m_LayerKey, layerKey, 32);
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m_ECBEncryption.SetKey (ivKey);
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memcpy (m_IVKey, ivKey, 32);
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m_CBCEncryption.SetKey (layerKey);
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}
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}
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void TransitTunnel::EncryptTunnelMsg (I2NPMessage * tunnelMsg)
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void TransitTunnel::EncryptTunnelMsg (I2NPMessage * tunnelMsg)
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{
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{
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uint8_t * payload = tunnelMsg->GetPayload () + 4;
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uint8_t * payload = tunnelMsg->GetPayload () + 4;
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m_ECBEncryption.SetKey (m_IVKey, 32);
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m_ECBEncryption.ProcessData(payload, payload, 16); // iv
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m_CBCEncryption.SetKeyWithIV (m_LayerKey, 32, payload);
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m_ECBEncryption.Encrypt ((i2p::crypto::ChipherBlock *)payload, (i2p::crypto::ChipherBlock *)payload); // iv
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m_CBCEncryption.ProcessData(payload + 16, payload + 16, TUNNEL_DATA_ENCRYPTED_SIZE); // payload
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m_ECBEncryption.SetKey (m_IVKey, 32);
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m_CBCEncryption.SetIV (payload);
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m_ECBEncryption.ProcessData(payload, payload, 16); // double iv encryption
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m_CBCEncryption.Encrypt (payload + 16, TUNNEL_DATA_ENCRYPTED_SIZE, payload + 16); // payload
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m_ECBEncryption.Encrypt((i2p::crypto::ChipherBlock *)payload, (i2p::crypto::ChipherBlock *)payload); // double iv encryption
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}
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}
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void TransitTunnel::HandleTunnelDataMsg (i2p::I2NPMessage * tunnelMsg)
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void TransitTunnel::HandleTunnelDataMsg (i2p::I2NPMessage * tunnelMsg)
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