gnu.crypto.jce.sig
Class SignatureAdapter

java.lang.Object
  java.security.SignatureSpi
      gnu.crypto.jce.sig.SignatureAdapter

All Implemented Interfaces:

java.lang.Cloneable

Direct Known Subclasses:

DSSRawSignatureSpi, RSAPSSRawSignatureSpi

class SignatureAdapter

extends java.security.SignatureSpi

implements java.lang.Cloneable

The implementation of a generic Signature adapter class to wrap gnu.crypto signature instances.

This class defines the Service Provider Interface (SPI) for the Signature class, which provides the functionality of a digital signature algorithm. Digital signatures are used for authentication and integrity assurance of digital data.

All the abstract methods in the SignatureSpi class are implemented by this class and all its sub-classes.

All the implementations which subclass this object, and which are serviced by the GNU Crypto provider implement the Cloneable interface.

Version:

$Revision: 1.2 $

Field Summary

Fields inherited from class java.security.SignatureSpi

appRandom

Constructor Summary

protected

SignatureAdapter(java.lang.String sigName, ISignatureCodec codec) Trivial protected constructor.

Method Summary

java.lang.Object	clone()
java.lang.Object	engineGetParameter(java.lang.String param)
void	engineInitSign(java.security.PrivateKey privateKey)
void	engineInitSign(java.security.PrivateKey privateKey, java.security.SecureRandom random)
void	engineInitVerify(java.security.PublicKey publicKey)
void	engineSetParameter(java.security.spec.AlgorithmParameterSpec params)
void	engineSetParameter(java.lang.String param, java.lang.Object value)
byte[]	engineSign()
int	engineSign(byte[] outbuf, int offset, int len)
void	engineUpdate(byte b)
void	engineUpdate(byte[] b, int off, int len)
boolean	engineVerify(byte[] sigBytes)

Methods inherited from class java.security.SignatureSpi

engineGetParameters, engineVerify

Methods inherited from class java.lang.Object

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

Constructor Detail

SignatureAdapter

protected SignatureAdapter(java.lang.String sigName,
                           ISignatureCodec codec)

Trivial protected constructor.

Parameters:

sigName - the canonical name of the signature scheme.

codec - the signature codec engine to use with this scheme.

Method Detail

clone

public java.lang.Object clone()

engineInitVerify

public void engineInitVerify(java.security.PublicKey publicKey)
                      throws java.security.InvalidKeyException

Throws:

java.security.InvalidKeyException

engineInitSign

public void engineInitSign(java.security.PrivateKey privateKey)
                    throws java.security.InvalidKeyException

Throws:

java.security.InvalidKeyException

engineInitSign

public void engineInitSign(java.security.PrivateKey privateKey,
                           java.security.SecureRandom random)
                    throws java.security.InvalidKeyException

Throws:

java.security.InvalidKeyException

engineUpdate

public void engineUpdate(byte b)
                  throws java.security.SignatureException

Throws:

java.security.SignatureException

engineUpdate

public void engineUpdate(byte[] b,
                         int off,
                         int len)
                  throws java.security.SignatureException

Throws:

java.security.SignatureException

engineSign

public byte[] engineSign()
                  throws java.security.SignatureException

Throws:

java.security.SignatureException

engineSign

public int engineSign(byte[] outbuf,
                      int offset,
                      int len)
               throws java.security.SignatureException

Throws:

java.security.SignatureException

engineVerify

public boolean engineVerify(byte[] sigBytes)
                     throws java.security.SignatureException

Throws:

java.security.SignatureException

engineSetParameter

public void engineSetParameter(java.lang.String param,
                               java.lang.Object value)
                        throws java.security.InvalidParameterException

Throws:

java.security.InvalidParameterException

engineSetParameter

public void engineSetParameter(java.security.spec.AlgorithmParameterSpec params)
                        throws java.security.InvalidAlgorithmParameterException

Throws:

java.security.InvalidAlgorithmParameterException

engineGetParameter

public java.lang.Object engineGetParameter(java.lang.String param)
                                    throws java.security.InvalidParameterException

Throws:

java.security.InvalidParameterException