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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)

public enum 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.

static void AuthenticateCallback(IAsyncResult ar)
{
    SslStream stream = (SslStream) ar.AsyncState;
    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>".
        byte[] message = Encoding.UTF8.GetBytes("Hello from the client.<EOF>");
        // Asynchronously send a message to the server.
        stream.BeginWrite(message, 0, message.Length, 
            new AsyncCallback(WriteCallback),
            stream);
    }
    catch (Exception authenticationException)
    {
        e = authenticationException;
        complete = true;
        return;
    }
}
static void AuthenticateCallback(IAsyncResult* ar)
{
    SslStream* stream = dynamic_cast<SslStream*> (ar->AsyncState);
    try 
    {
        stream->EndClientAuthenticate(ar);
        Console::WriteLine(S"Authentication succeeded.");
        Console::WriteLine(S"Cipher: {0} strength {1}", __box(stream->CipherAlgorithm), __box(stream->CipherStrength));
        Console::WriteLine(S"Hash: {0} strength {1}", __box(stream->HashAlgorithm), __box(stream->HashStrength));
        Console::WriteLine(S"Key exchange: {0} strength {1}", __box(stream->KeyExchangeAlgorithm), __box(stream->KeyExchangeStrength));
        Console::WriteLine(S"Protocol: {0}", __box(stream->SslProtocol));
        // Encode a test message into a byte array.
        // Signal the end of the message using the "<EOF>".
        Byte message[] = Encoding::UTF8->GetBytes(S"Hello from the client.<EOF>");
        // Asynchronously send a message to the server.
        stream->BeginWrite(message, 0, message->Length, 
            new AsyncCallback(WriteCallback),
            stream);
    }
    catch (Exception* authenticationException)
    {
        e = authenticationException;
        complete = true;
        return;
    }
}

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

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

.NET Framework

Supported in: 3.5, 3.0, 2.0

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