CipherAlgorithmType Enumeration

Note: This enumeration is new in the .NET Framework version 2.0.

Defines the possible cipher algorithms for the SslStream class.

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

public enum CipherAlgorithmType
public enum CipherAlgorithmType
public enum CipherAlgorithmType

 Member nameDescription
AesThe Advanced Encryption Standard (AES) algorithm. 
Aes128The Advanced Encryption Standard (AES) algorithm with a 128 bit key. 
Aes192The Advanced Encryption Standard (AES) algorithm with a 192 bit key. 
Aes256The Advanced Encryption Standard (AES) algorithm with a 256 bit key. 
DesThe Data Encryption Standard (DES) algorithm. 
NoneNo encryption algorithm is used. 
Rc2Rivest's Code 2 (RC2) algorithm. 
Rc4Rivest's Code 4 (RC4) algorithm. 
TripleDesThe Triple Data Encryption Standard (3DES) algorithm. 

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

The following example displays the properties of an SslStream.

static void AuthenticateCallback(IAsyncResult ar)
    SslStream stream = (SslStream) ar.AsyncState;
        Console.WriteLine("Authentication succeeded.");
        Console.WriteLine("Cipher: {0} strength {1}", stream.CipherAlgorithm, 
        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),
    catch (Exception authenticationException)
        e = authenticationException;
        complete = true;

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

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

.NET Framework

Supported in: 2.0

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