public abstract class AsymmetricSignatureFormatter {
// Public Constructors
public AsymmetricSignatureFormatter( );
// Public Instance Methods
public abstract byte[ ] CreateSignature(byte[ ] rgbHash);
public virtual byte[ ] CreateSignature(HashAlgorithm hash);
public abstract void SetHashAlgorithm(string strName);
public abstract void SetKey(AsymmetricAlgorithm key);
}
This is the abstract parent for all signature formatter
implementation classes; such classes create digital signatures by
formatting a cryptographic hash code and applying an asymmetric
signature function to the formatted data.
The CreateSignature( ) method uses an asymmetric
private key to create a digital signature, expressed as a
System.Byte array. The private key value is
specified by the SetKey( ) method, which accepts
an instance of the AsymmetricAlgorithm class
configured with the key parameters. The SetHashAlgorithm(
) method sets the name of the hash algorithm used to create
the data to be signed; this value is used in the data-formatting
process.
The .NET Framework class library includes the
DSASignatureFormatter and
RSAPKCS1SignatureFormatter classes, which create
digital signatures using the DSA and
RSA algorithm classes.
