HashAlgorithmType Enumeração
Definição
Especifica o algoritmo usado para gerar códigos de autenticação de mensagem (MACs).Specifies the algorithm used for generating message authentication codes (MACs).
public enum class HashAlgorithmType
public enum HashAlgorithmType
type HashAlgorithmType =
Public Enum HashAlgorithmType
- Herança
Campos
| Md5 | 32771 | O algoritmo de hash MD5 (Message Digest 5).The Message Digest 5 (MD5) hashing algorithm. Devido a problemas de colisão com o MD5, a Microsoft recomenda o SHA256.Due to collision problems with MD5, Microsoft recommends SHA256. |
| None | 0 | Nenhum algoritmo de hash é usado.No hashing algorithm is used. |
| Sha1 | 32772 | O Secure Hashing Algorithm (SHA1).The Secure Hashing Algorithm (SHA1). Devido a problemas de colisão com o MD5, a Microsoft recomenda o SHA256.Due to collision problems with MD5, Microsoft recommends SHA256. |
| Sha256 | 32780 | O Secure Hash algoritmo 2 (SHA-2), usando um resumo de 256 bits.The Secure Hashing Algorithm 2 (SHA-2), using a 256-bit digest. |
| Sha384 | 32781 | O Secure Hash algoritmo 2 (SHA-2), usando um resumo de 384 bits.The Secure Hashing Algorithm 2 (SHA-2), using a 384-bit digest. |
| Sha512 | 32782 | O Secure Hash algoritmo 2 (SHA-2), usando um resumo de 512 bits.The Secure Hashing Algorithm 2 (SHA-2), using a 512-bit digest. |
Exemplos
O exemplo a seguir exibe as propriedades de uma SslStream após a autenticação ter sido bem-sucedida.The following example displays the properties of an SslStream after authentication has succeeded.
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;
}
}
Comentários
Esta enumeração Especifica valores válidos para a SslStream.HashAlgorithm propriedade.This enumeration specifies valid values for the SslStream.HashAlgorithm property.