HashAlgorithmType Enumeración

Definición

Espacio de nombres:

System.Security.Authentication

Ensamblados:

netstandard.dll, System.Net.Primitives.dll

Source:

SslEnumTypes.cs

Precaución

KeyExchangeAlgorithm, KeyExchangeStrength, CipherAlgorithm, CipherStrength, HashAlgorithm and HashStrength properties of SslStream are obsolete. Use NegotiatedCipherSuite instead.

Especifica el algoritmo usado para generar códigos de autenticación de mensajes (MAC).

public enum class HashAlgorithmType

[System.Obsolete("KeyExchangeAlgorithm, KeyExchangeStrength, CipherAlgorithm, CipherStrength, HashAlgorithm and HashStrength properties of SslStream are obsolete. Use NegotiatedCipherSuite instead.", DiagnosticId="SYSLIB0058", UrlFormat="https://aka.ms/dotnet-warnings/{0}")]
public enum HashAlgorithmType

[<System.Obsolete("KeyExchangeAlgorithm, KeyExchangeStrength, CipherAlgorithm, CipherStrength, HashAlgorithm and HashStrength properties of SslStream are obsolete. Use NegotiatedCipherSuite instead.", DiagnosticId="SYSLIB0058", UrlFormat="https://aka.ms/dotnet-warnings/{0}")>]
type HashAlgorithmType = 

Public Enum HashAlgorithmType

Herencia

Object

ValueType

Enum

HashAlgorithmType

Atributos

ObsoleteAttribute

Campos

Nombre	Valor	Description
None	0	No se usa ningún algoritmo hash.
Md5	32771	Algoritmo hash de resumen de mensajes 5 (MD5). Debido a problemas de colisión con MD5, Microsoft recomienda SHA-256.
Sha1	32772	Algoritmo hash seguro (SHA1). Debido a problemas de colisión con SHA-1, Microsoft recomienda SHA-256.
Sha256	32780	Algoritmo hash seguro 2 (SHA-2), con un resumen de 256 bits.
Sha384	32781	Algoritmo hash seguro 2 (SHA-2), con un resumen de 384 bits.
Sha512	32782	Algoritmo hash seguro 2 (SHA-2), mediante un resumen de 512 bits.

Ejemplos

En el ejemplo siguiente se muestran las propiedades de una SslStream vez que la autenticación se ha realizado correctamente.

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

}

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;
    }
}

Comentarios

Esta enumeración especifica valores válidos para la SslStream.HashAlgorithm propiedad .

Consulte también

• HashStrength