protected override bool HandshakePassive(SendCall Send, ReceiveCall Receive)
{
if (!Receive(out byte[] data, out EndPoint source))
{
return(false);
}
KEXCrypto.FromXmlString(Encoding.ASCII.GetString(data));
byte[] key = new byte[32];
RandomNumberGenerator.Create().GetBytes(key);
DataCrypto.Key = key;
Send(KEXCrypto.Encrypt(key, RSAEncryptionPadding.OaepSHA256));
if (!Receive(out data, out source))
{
return(false);
}
DataCrypto.IV = data;
Send(EncryptData(SECRET));
return(true);
}
public bool Handshake(SendCall Send, ReceiveCall Receive)
{
if (Active)
{
return(HandshakeActive(Send, Receive));
}
else
{
return(HandshakePassive(Send, Receive));
}
}
protected override bool HandshakeActive(SendCall Send, ReceiveCall Receive)
{
Send(KEXCrypto.GetPublicKey());
if (!Receive(out byte[] data, out EndPoint source))
{
return(false);
}
DataCrypto.Key = KEXCrypto.GetSharedSecret(data);
Send(DataCrypto.IV);
if (!Receive(out data, out source))
{
return(false);
}
return(DecryptSecret(data));
}
protected override bool HandshakeActive(SendCall Send, ReceiveCall Receive)
{
Send(Encoding.ASCII.GetBytes(KEXCrypto.ToXmlString(false)));
if (!Receive(out byte[] data, out EndPoint source))
{
return(false);
}
DataCrypto.Key = KEXCrypto.Decrypt(data, RSAEncryptionPadding.OaepSHA256);
Send(DataCrypto.IV);
if (!Receive(out data, out source))
{
return(false);
}
return(DecryptSecret(data));
}
protected override bool HandshakeActive(SendCall Send, ReceiveCall Receive)
{
Send(KEXCrypto.PublicKey.ToByteArray());
if (!Receive(out byte[] data, out EndPoint source))
{
return(false);
}
DataCrypto.Key = KEXCrypto.DeriveKeyMaterial(CngKey.Import(data, CngKeyBlobFormat.EccPublicBlob));
Send(DataCrypto.IV);
if (!Receive(out data, out source))
{
return(false);
}
return(DecryptSecret(data));
}
protected override bool HandshakePassive(SendCall Send, ReceiveCall Receive)
{
if (!Receive(out byte[] data, out EndPoint source))
{
return(false);
}
DataCrypto.Key = KEXCrypto.GetSharedSecret(data);
Send(KEXCrypto.GetPublicKey());
if (!Receive(out data, out source))
{
return(false);
}
DataCrypto.IV = data;
Send(EncryptData(SECRET));
return(true);
}
protected override bool HandshakePassive(SendCall Send, ReceiveCall Receive)
{
if (!Receive(out byte[] data, out EndPoint source))
{
return(false);
}
DataCrypto.Key = KEXCrypto.DeriveKeyMaterial(CngKey.Import(data, CngKeyBlobFormat.EccPublicBlob));
Send(KEXCrypto.PublicKey.ToByteArray());
if (!Receive(out data, out source))
{
return(false);
}
DataCrypto.IV = data;
Send(EncryptData(SECRET));
return(true);
}
protected abstract bool HandshakePassive(SendCall Send, ReceiveCall Receive);
protected override bool HandshakePassive(SendCall Send, ReceiveCall Receive)
{
return(true);
}