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HashAlgorithmType Enumeration

Specifies the algorithm used for generating message authentication codes (MACs).

Namespace:  System.Security.Authentication
Assembly:  System (in System.dll)

'Declaration
Public Enumeration HashAlgorithmType

Member nameDescription
NoneNo hashing algorithm is used.
Md5The Message Digest 5 (MD5) hashing algorithm.
Sha1The Secure Hashing Algorithm (SHA1).

This enumeration specifies valid values for the SslStream.HashAlgorithm property.

The following example displays the properties of an SslStream after authentication has succeeded.


		Private Shared Sub AuthenticateCallback(ByVal ar As IAsyncResult)
			Dim stream As SslStream = CType(ar.AsyncState, SslStream)
			Try
				stream.EndAuthenticateAsClient(ar)
				Console.WriteLine("Authentication succeeded.")
				Console.WriteLine("Cipher: {0} strength {1}", stream.CipherAlgorithm, stream.CipherStrength)
				Console.WriteLine("Hash: {0} strength {1}", stream.HashAlgorithm, stream.HashStrength)
				Console.WriteLine("Key exchange: {0} strength {1}", stream.KeyExchangeAlgorithm, stream.KeyExchangeStrength)
				Console.WriteLine("Protocol: {0}", stream.SslProtocol)
				' Encode a test message into a byte array.
				' Signal the end of the message using the "<EOF>".
				Dim message() As Byte = Encoding.UTF8.GetBytes("Hello from the client.<EOF>")
				' Asynchronously send a message to the server.
				stream.BeginWrite(message, 0, message.Length, New AsyncCallback(AddressOf WriteCallback), stream)
			Catch authenticationException As Exception
				e = authenticationException
				complete = True
				Return
			End Try
		End Sub


.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
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