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ProtoProxy: Added encryption support.

This commit is contained in:
madmaxoft 2014-01-28 23:53:33 +01:00
parent bc6fc859f4
commit ae897804a0
1 changed files with 19 additions and 2 deletions
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21
Tools/ProtoProxy/Connection.cpp
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@ -1302,6 +1302,7 @@ bool cConnection::HandleServerLoginEncryptionKeyRequest(void)
}
Log("Got PACKET_ENCRYPTION_KEY_REQUEST from the SERVER:");
Log(" ServerID = %s", ServerID.c_str());
DataLog(PublicKey.data(), PublicKey.size(), " Public key (%u bytes)", (unsigned)PublicKey.size());
// Reply to the server:
SendEncryptionKeyResponse(PublicKey, Nonce);
@ -2863,14 +2864,25 @@ void cConnection::SendEncryptionKeyResponse(const AString & a_ServerPublicKey, c
Byte SharedSecret[16];
Byte EncryptedSecret[128];
memset(SharedSecret, 0, sizeof(SharedSecret)); // Use all zeroes for the initial secret
m_Server.GetPrivateKey().Encrypt(SharedSecret, sizeof(SharedSecret), EncryptedSecret, sizeof(EncryptedSecret));
cPublicKey PubKey(a_ServerPublicKey);
int res = PubKey.Encrypt(SharedSecret, sizeof(SharedSecret), EncryptedSecret, sizeof(EncryptedSecret));
if (res < 0)
{
Log("Shared secret encryption failed: %d (0x%x)", res, res);
return;
}
m_ServerEncryptor.Init(SharedSecret, SharedSecret);
m_ServerDecryptor.Init(SharedSecret, SharedSecret);
// Encrypt the nonce:
Byte EncryptedNonce[128];
m_Server.GetPrivateKey().Encrypt((const Byte *)a_Nonce.data(), a_Nonce.size(), EncryptedNonce, sizeof(EncryptedNonce));
res = PubKey.Encrypt((const Byte *)a_Nonce.data(), a_Nonce.size(), EncryptedNonce, sizeof(EncryptedNonce));
if (res < 0)
{
Log("Nonce encryption failed: %d (0x%x)", res, res);
return;
}
// Send the packet to the server:
Log("Sending PACKET_ENCRYPTION_KEY_RESPONSE to the SERVER");
@ -2880,6 +2892,11 @@ void cConnection::SendEncryptionKeyResponse(const AString & a_ServerPublicKey, c
ToServer.WriteBuf(EncryptedSecret, sizeof(EncryptedSecret));
ToServer.WriteBEShort((short)sizeof(EncryptedNonce));
ToServer.WriteBuf(EncryptedNonce, sizeof(EncryptedNonce));
DataLog(EncryptedSecret, sizeof(EncryptedSecret), "Encrypted secret (%u bytes)", (unsigned)sizeof(EncryptedSecret));
DataLog(EncryptedNonce, sizeof(EncryptedNonce), "Encrypted nonce (%u bytes)", (unsigned)sizeof(EncryptedNonce));
cByteBuffer Len(5);
Len.WriteVarInt(ToServer.GetReadableSpace());
SERVERSEND(Len);
SERVERSEND(ToServer);
m_ServerState = csEncryptedUnderstood;
m_IsServerEncrypted = true;