opencard.opt.security
Class DSAPrivateKey

java.lang.Object
  opencard.opt.security.DSAPrivateKey

All Implemented Interfaces:

java.io.Serializable, java.security.interfaces.DSAKey, java.security.interfaces.DSAPrivateKey, java.security.Key, java.security.PrivateKey

public class DSAPrivateKey
extends java.lang.Object
implements java.security.interfaces.DSAPrivateKey

Contains a public DSA key. Implements the java.security.interfaces.DSAPrivateKey interface CardServices using PKA algorithms like SignatureCardService require keys implementing the PrivateKey/PublicKey interface. In this package OpenCard provides key classes for common algorithms like RSA, DSA (or DES) that each concrete card service implementing a card service interface should support instead of defining its own key classes. Only for new PKA algorithms that OpenCard does not yet support a card service may define its own key classes.

Version:

$Id: DSAPrivateKey.java,v 1.1.1.1 1999/10/05 15:08:48 damke Exp $

Author:

Peter Bendel (peter_bendel@de.ibm.com)

See Also:

DSAPrivateKey, Serialized Form

Field Summary

Fields inherited from interface java.security.interfaces.DSAPrivateKey

serialVersionUID

Constructor Summary

DSAPrivateKey(java.math.BigInteger p, java.math.BigInteger q, java.math.BigInteger g, java.math.BigInteger x)
Produce an DSAPrivateKey from the given BigIntegers.

Method Summary

java.lang.String	getAlgorithm() Conformance to the java.security interface
byte[]	getEncoded() Conformance to the java.security interface
java.lang.String	getFormat() Conformance to the java.security interface
java.security.interfaces.DSAParams	getParams() Returns the DSA-specific key parameters.
java.math.BigInteger	getX() Returns the value of the private key, x.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DSAPrivateKey

public DSAPrivateKey(java.math.BigInteger p,
                     java.math.BigInteger q,
                     java.math.BigInteger g,
                     java.math.BigInteger x)

Produce an DSAPrivateKey from the given BigIntegers.

Parameters:

q - subprime

p - prime

g - base

x - private key

Method Detail

getAlgorithm

public java.lang.String getAlgorithm()

Conformance to the java.security interface

Specified by:

getAlgorithm in interface java.security.Key

See Also:

PublicKey

getEncoded

public byte[] getEncoded()

Conformance to the java.security interface

Specified by:

getEncoded in interface java.security.Key

See Also:

PublicKey

getFormat

public java.lang.String getFormat()

Conformance to the java.security interface

Specified by:

getFormat in interface java.security.Key

See Also:

PublicKey

getParams

public java.security.interfaces.DSAParams getParams()

Returns the DSA-specific key parameters. These parameters are never secret.

Specified by:

getParams in interface java.security.interfaces.DSAKey

Returns:

the DSA-specific key parameters.

See Also:

DSAParams

getX

public java.math.BigInteger getX()

Returns the value of the private key, x.

Specified by:

getX in interface java.security.interfaces.DSAPrivateKey

Returns:

the value of the private key, x.