DSASignatureFormatter Constructors

Definition

Namespace:

System.Security.Cryptography

Assembly:

System.Security.Cryptography.dll

Initializes a new instance of the DSASignatureFormatter class.

Overloads

DSASignatureFormatter()	Initializes a new instance of the DSASignatureFormatter class.
DSASignatureFormatter(AsymmetricAlgorithm)	Initializes a new instance of the DSASignatureFormatter class with the specified key.

DSASignatureFormatter()

Source:

DSASignatureFormatter.cs

Initializes a new instance of the DSASignatureFormatter class.

public:
 DSASignatureFormatter();

public DSASignatureFormatter ();

Public Sub New ()

See also

• Cryptographic Services

DSASignatureFormatter(AsymmetricAlgorithm)

Source:

DSASignatureFormatter.cs

Initializes a new instance of the DSASignatureFormatter class with the specified key.

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)

Parameters

key

AsymmetricAlgorithm

The instance of the Digital Signature Algorithm (DSA) that holds the key.

Exceptions

ArgumentNullException

key is null.

Examples

#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

See also

• Cryptographic Services