Silverlight 5 WinRT

  public class AuthenticationException
  : SystemException, ISerializable, _Exception

  public sealed enum CipherAlgorithmType
  : IComparable, IFormattable, IConvertible
  { None, Rc2, Rc4, Des, TripleDes, Aes, Aes128, Aes192, Aes256, Null }

  public sealed enum ExchangeAlgorithmType
  : IComparable, IFormattable, IConvertible
  { None, RsaSign, RsaKeyX, DiffieHellman }

  public sealed enum HashAlgorithmType
  : IComparable, IFormattable, IConvertible
  { None, Md5, Sha1 }

  public class InvalidCredentialException
  : AuthenticationException, ISerializable, _Exception

  public sealed enum SslProtocols
  : IComparable, IFormattable, IConvertible
  { None, Ssl2, Ssl3, Tls, Default }