DSASignatureFormatter Constructeurs

Définition

Espace de noms:

System.Security.Cryptography

Assembly:

System.Security.Cryptography.Algorithms.dll

Assembly:

System.Security.Cryptography.dll

Assembly:

mscorlib.dll

Assembly:

netstandard.dll

Initialise une nouvelle instance de la classe DSASignatureFormatter.

Surcharges

DSASignatureFormatter()	Initialise une nouvelle instance de la classe DSASignatureFormatter.
DSASignatureFormatter(AsymmetricAlgorithm)	Initialise une nouvelle instance de la classe DSASignatureFormatter avec la clé spécifiée.

DSASignatureFormatter()

Initialise une nouvelle instance de la classe DSASignatureFormatter.

public:
 DSASignatureFormatter();

public DSASignatureFormatter ();

Public Sub New ()

Voir aussi

• services de chiffrement

DSASignatureFormatter(AsymmetricAlgorithm)

Initialise une nouvelle instance de la classe DSASignatureFormatter avec la clé spécifiée.

public:
 DSASignatureFormatter(System::Security::Cryptography::AsymmetricAlgorithm ^ key);

public DSASignatureFormatter (System.Security.Cryptography.AsymmetricAlgorithm key);

new System.Security.Cryptography.DSASignatureFormatter : System.Security.Cryptography.AsymmetricAlgorithm -> System.Security.Cryptography.DSASignatureFormatter

Public Sub New (key As AsymmetricAlgorithm)

Paramètres

key

AsymmetricAlgorithm

Instance de Digital Signature Algorithm (DSA) qui contient la clé.

Exceptions

ArgumentNullException

key a la valeur null.

Exemples

#using <System.dll>

using namespace System;
using namespace System::Security::Cryptography;
int main()
{
   try
   {
      
      //Create a new instance of DSA.
      DSA^ DSA = DSA::Create();
      
      //The hash to sign.
      array<Byte>^Hash = {59,4,248,102,77,97,142,201,210,12,224,93,25,41,100,197,213,134,130,135};
      
      //Create an DSASignatureFormatter Object* and pass it the 
      //DSA instance to transfer the key information.
      DSASignatureFormatter^ DSAFormatter = gcnew DSASignatureFormatter( DSA );
      
      //Set the hash algorithm to SHA1.
      DSAFormatter->SetHashAlgorithm( "SHA1" );
      
      //Create a signature for HashValue and return it.
      array<Byte>^SignedHash = DSAFormatter->CreateSignature( Hash );
   }
   catch ( CryptographicException^ e ) 
   {
      Console::WriteLine( e->Message );
   }

}

using System;
using System.Security.Cryptography;

class DSASample
{
        
    static void Main()
    {
        try
        {
            //Create a new instance of DSA.
            DSA DSA = DSA.Create();

            //The hash to sign.
            byte[] Hash = {59,4,248,102,77,97,142,201,210,12,224,93,25,41,100,197,213,134,130,135};

            //Create an DSASignatureFormatter object and pass it the 
            //DSA instance to transfer the key information.
            DSASignatureFormatter DSAFormatter = new DSASignatureFormatter(DSA);

            //Set the hash algorithm to SHA1.
            DSAFormatter.SetHashAlgorithm("SHA1");

            //Create a signature for HashValue and return it.
            byte[] SignedHash = DSAFormatter.CreateSignature(Hash);
        }
        catch(CryptographicException e)
        {
            Console.WriteLine(e.Message);
        }
    }
}

Imports System.Security.Cryptography

 _

Class DSASample


    Shared Sub Main()
        Try
            'Create a new instance of DSA.
            Dim DSA As DSA = DSA.Create()

            'The hash to sign.
            Dim Hash As Byte() = {59, 4, 248, 102, 77, 97, 142, 201, 210, 12, 224, 93, 25, 41, 100, 197, 213, 134, 130, 135}

            'Create an DSASignatureFormatter object and pass it the 
            'DSA instance to transfer the key information.
            Dim DSAFormatter As New DSASignatureFormatter(DSA)

            'Set the hash algorithm to SHA1.
            DSAFormatter.SetHashAlgorithm("SHA1")

            'Create a signature for HashValue and return it.
            Dim SignedHash As Byte() = DSAFormatter.CreateSignature(Hash)

        Catch e As CryptographicException
            Console.WriteLine(e.Message)
        End Try
    End Sub
End Class

Voir aussi

• services de chiffrement