private T GetStrongestDescriptor <T>(Stream baseStream, IAlgorithmContainer <T> container, IKeyExchangeAlgorithm exchangeAlgorithm) where T : IAlgorithmDescriptor
{
var localAlgorithms = container.SupportedAlgorithms.ToArray();
WriteAlgorithms(baseStream, localAlgorithms, exchangeAlgorithm);
var remoteAlgorithms = ReadRemoteAlgorithms(baseStream, exchangeAlgorithm);
var strongestCommon = GetStrongestCommonDescriptor(localAlgorithms.Cast <IAlgorithmDescriptor>(), remoteAlgorithms);
if (null == strongestCommon)
{
throw new InvalidOperationException("The remote endpoint does not support any key exchange algorithms that the local endpoint supports");
}
return((T)strongestCommon);
}
public KeyExchangeLinkNegotiator(IAlgorithmContainer <IKeyExchangeAlgorithmDescriptor> keyExchangeBuilder,
IAlgorithmContainer <ISymmetricAlgorithmDescriptor> transportAlgorithmBuilder)
{
this.keyExchangeBuilder = Guard.IsNull(() => keyExchangeBuilder);
this.transportAlgorithmBuilder = Guard.IsNull(() => transportAlgorithmBuilder);
}