DSASignatureFormatter Class

 

Creates a Digital Signature Algorithm (DSA) signature.

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

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

[ComVisibleAttribute(true)]
public class DSASignatureFormatter : AsymmetricSignatureFormatter

NameDescription
System_CAPS_pubmethodDSASignatureFormatter()

Initializes a new instance of the DSASignatureFormatter class.

System_CAPS_pubmethodDSASignatureFormatter(AsymmetricAlgorithm)

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

NameDescription
System_CAPS_pubmethodCreateSignature(Byte[])

Creates the Digital Signature Algorithm (DSA) PKCS #1 signature for the specified data.(Overrides AsymmetricSignatureFormatter.CreateSignature(Byte[]).)

System_CAPS_pubmethodCreateSignature(HashAlgorithm)

Creates the signature from the specified hash value.(Inherited from AsymmetricSignatureFormatter.)

System_CAPS_pubmethodEquals(Object)

Determines whether the specified object is equal to the current object.(Inherited from Object.)

System_CAPS_protmethodFinalize()

Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection.(Inherited from Object.)

System_CAPS_pubmethodGetHashCode()

Serves as the default hash function. (Inherited from Object.)

System_CAPS_pubmethodGetType()

Gets the Type of the current instance.(Inherited from Object.)

System_CAPS_protmethodMemberwiseClone()

Creates a shallow copy of the current Object.(Inherited from Object.)

System_CAPS_pubmethodSetHashAlgorithm(String)

Specifies the hash algorithm for the Digital Signature Algorithm (DSA) signature formatter.(Overrides AsymmetricSignatureFormatter.SetHashAlgorithm(String).)

System_CAPS_pubmethodSetKey(AsymmetricAlgorithm)

Specifies the key to be used for the Digital Signature Algorithm (DSA) signature formatter.(Overrides AsymmetricSignatureFormatter.SetKey(AsymmetricAlgorithm).)

System_CAPS_pubmethodToString()

Returns a string that represents the current object.(Inherited from Object.)

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
Available since 1.1

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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