Gets a value that identifies the bulk encryption algorithm used by this SslStream.
Assembly: System (in System.dll)
The property was accessed before the completion of the authentication process or the authentication process failed.
Windows Server 2003 and Windows XP do not support the Null value. So even if the Null value is used to construct the SslStream instance, the EncryptionPolicy property will be None. The Null value is only returned on Windows Vista and later.