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DSASignatureFormatter Class

Creates a Digital Signature Algorithm (DSA) signature.

System.Object
  System.Security.Cryptography.AsymmetricSignatureFormatter
    System.Security.Cryptography.DSASignatureFormatter

Namespace:  System.Security.Cryptography
Assembly:  mscorlib (in mscorlib.dll)

[ComVisibleAttribute(true)]
public class DSASignatureFormatter : AsymmetricSignatureFormatter

The DSASignatureFormatter type exposes the following members.

  NameDescription
Public methodDSASignatureFormatter()Initializes a new instance of the DSASignatureFormatter class.
Public methodDSASignatureFormatter(AsymmetricAlgorithm)Initializes a new instance of the DSASignatureFormatter class with the specified key.
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  NameDescription
Public methodCreateSignature(Byte[])Creates the Digital Signature Algorithm (DSA) PKCS #1 signature for the specified data. (Overrides AsymmetricSignatureFormatter.CreateSignature(Byte[]).)
Public methodCreateSignature(HashAlgorithm)Creates the signature from the specified hash value. (Inherited from AsymmetricSignatureFormatter.)
Public methodEquals(Object)Determines whether the specified object is equal to the current object. (Inherited from Object.)
Protected methodFinalizeAllows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
Public methodGetHashCodeServes as the default hash function. (Inherited from Object.)
Public methodGetTypeGets the Type of the current instance. (Inherited from Object.)
Protected methodMemberwiseCloneCreates a shallow copy of the current Object. (Inherited from Object.)
Public methodSetHashAlgorithmSpecifies the hash algorithm for the Digital Signature Algorithm (DSA) signature formatter. (Overrides AsymmetricSignatureFormatter.SetHashAlgorithm(String).)
Public methodSetKeySpecifies the key to be used for the Digital Signature Algorithm (DSA) signature formatter. (Overrides AsymmetricSignatureFormatter.SetKey(AsymmetricAlgorithm).)
Public methodToStringReturns a string that represents the current object. (Inherited from Object.)
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using System;
using System.Security.Cryptography;

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

			//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  
			//DSACryptoServiceProvider 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);
		}
	}

}

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.
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