Class RSAPSSSignature

java.lang.Object

java.security.SignatureSpi

com.ibm.crypto.hdwrCCA.provider.RSAPSSSignature

public final class RSAPSSSignature
extends SignatureSpi

PKCS#1 RSA-PSS signatures with the various message digest algorithms. This file contains an abstract base class with all the logic plus a nested static class for each of the message digest algorithms (see end of the file). Only SHA-1, SHA-256, SHA-384, and SHA-512 are recommended for EMSA-PSS encoding schemes per RFC.

Field Summary

Fields inherited from class SignatureSpi

appRandom

Constructor Summary

Constructors

Constructor	Description
RSAPSSSignature()

Method Summary

Modifier and Type	Method	Description
protected Object	engineGetParameter(String param)	Deprecated.
protected AlgorithmParameters	engineGetParameters()
protected void	engineInitSign(PrivateKey privateKey)
protected void	engineInitVerify(PublicKey publicKey)
protected void	engineSetParameter(String param, Object value)	Deprecated.
protected void	engineSetParameter(AlgorithmParameterSpec params)	This method is overridden by providers to initialize this signature engine with the specified parameter set.
protected byte[]	engineSign()
protected void	engineUpdate(byte b)
protected void	engineUpdate(byte[] data, int off, int len)
protected boolean	engineVerify(byte[] signature)

Methods inherited from class SignatureSpi

clone, engineInitSign, engineSign, engineUpdate, engineVerify

Methods inherited from class Object

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

Constructor Details

RSAPSSSignature

public RSAPSSSignature()

Method Details

engineInitSign

protected void engineInitSign(PrivateKey privateKey)
                       throws InvalidKeyException

Specified by:

engineInitSign in class SignatureSpi

Throws:

InvalidKeyException

engineInitVerify

protected void engineInitVerify(PublicKey publicKey)
                         throws InvalidKeyException

Specified by:

engineInitVerify in class SignatureSpi

Throws:

InvalidKeyException

engineUpdate

protected void engineUpdate(byte b)
                     throws SignatureException

Specified by:

engineUpdate in class SignatureSpi

Throws:

SignatureException

engineUpdate

protected void engineUpdate(byte[] data,
 int off,
 int len)
                     throws SignatureException

Specified by:

engineUpdate in class SignatureSpi

Throws:

SignatureException

engineSign

protected byte[] engineSign()
                     throws SignatureException

Specified by:

engineSign in class SignatureSpi

Throws:

SignatureException

engineVerify

protected boolean engineVerify(byte[] signature)
                        throws SignatureException

Specified by:

engineVerify in class SignatureSpi

Throws:

SignatureException

engineSetParameter

@Deprecated
protected void engineSetParameter(String param,
 Object value)
                           throws InvalidParameterException

Deprecated.

Specified by:

engineSetParameter in class SignatureSpi

Throws:

InvalidParameterException

engineGetParameter

@Deprecated
protected Object engineGetParameter(String param)
                             throws InvalidParameterException

Deprecated.

Specified by:

engineGetParameter in class SignatureSpi

Throws:

InvalidParameterException

engineSetParameter

protected void engineSetParameter(AlgorithmParameterSpec params)
                           throws InvalidAlgorithmParameterException

This method is overridden by providers to initialize this signature engine with the specified parameter set.

Overrides:

engineSetParameter in class SignatureSpi

Parameters:

params - the parameters

Throws:

UnsupportedOperationException - if this method is not overridden by a provider

InvalidAlgorithmParameterException - if this method is overridden by a provider and the given parameters are inappropriate for this signature engine

engineGetParameters

protected AlgorithmParameters engineGetParameters()
                                           throws InvalidParameterException

Overrides:

engineGetParameters in class SignatureSpi

Throws:

InvalidParameterException