DSA

DSA

disposable

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System.Security.Cryptography (mscorlib.dll)

abstract class

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

Passed To

System.Security.Cryptography.Xml.DSAKeyValue.{DSAKeyValue( ), Key}