Programming .NET Security

Name

DSA

Synopsis

public abstract class DSA : AsymmetricAlgorithm {
// Public Static Methods
   public static DSA Create(  );
   public static DSA Create(string algName);
// Public Instance Methods
   public abstract byte[  ] CreateSignature(byte[  ] rgbHash);
   public abstract DSAParameters ExportParameters(bool includePrivateParameters);
   public override void FromXmlString(string xmlString);
 // overrides AsymmetricAlgorithm
   public abstract void ImportParameters(DSAParameters parameters);
   public override string ToXmlString( bool includePrivateParameters);
// overrides AsymmetricAlgorithm
   public abstract bool VerifySignature(byte[  ] rgbHash, byte[  ] rgbSignature);
}

This class extends AsymmetricAlgorithm and is the abstract representation of the Digital Signature Algorithm (DSA). Individual implementations of DSA will extend this class. The .NET Framework class library includes the DSACryptoServiceProvider class, which is the default implementation of the algorithm.

DSA key pairs are represented by the DSAParameters structure, and can be imported and exported from the DSA class with the ImportParameters( ) and ExportParameters( ) methods. The CreateSignature( ) method produces a digital signature for a cryptographic hash code, which can be verified using the VerifySignature( ) method.

The DSA algorithm does not support data encryption.

Hierarchy

System.Object → AsymmetricAlgorithm(System.IDisposable) → DSA

Subclasses

DSACryptoServiceProvider

Returned By

System.Security.Cryptography.Xml.DSAKeyValue.Key ...