com.ibm.crypto.fips.provider

Class RSAPSSSignature

java.lang.Object

java.security.SignatureSpi

com.ibm.crypto.fips.provider.RSAPSSSignature

public final class RSAPSSSignature
extends java.security.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-256, SHA-384, and SHA-512 are recommended for EMSA-PSS encoding schemes per RFC.

Since:

8.0

Field Summary

Fields

Modifier and Type	Field and Description
protected java.security.SecureRandom	random

Fields inherited from class java.security.SignatureSpi

appRandom

Constructor Summary

Constructors

Constructor and Description
RSAPSSSignature() Construct a new RSAPSSSignature.

Method Summary

Methods

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

Methods inherited from class java.security.SignatureSpi

clone, engineSign, engineVerify

Methods inherited from class java.lang.Object

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

Field Detail

random

protected java.security.SecureRandom random

Constructor Detail

RSAPSSSignature

public RSAPSSSignature()

Construct a new RSAPSSSignature. Used by subclasses.

Method Detail

engineInitVerify

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

Specified by:

engineInitVerify in class java.security.SignatureSpi

Throws:

java.security.InvalidKeyException

engineInitSign

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

Specified by:

engineInitSign in class java.security.SignatureSpi

Throws:

java.security.InvalidKeyException

engineInitSign

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

Overrides:

engineInitSign in class java.security.SignatureSpi

Throws:

java.security.InvalidKeyException

engineUpdate

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

Specified by:

engineUpdate in class java.security.SignatureSpi

Throws:

java.security.SignatureException

engineUpdate

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

Specified by:

engineUpdate in class java.security.SignatureSpi

Throws:

java.security.SignatureException

internalUpdate

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

Throws:

java.security.SignatureException

engineUpdate

protected void engineUpdate(java.nio.ByteBuffer b)

Overrides:

engineUpdate in class java.security.SignatureSpi

engineSign

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

Specified by:

engineSign in class java.security.SignatureSpi

Throws:

java.security.SignatureException

engineVerify

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

Specified by:

engineVerify in class java.security.SignatureSpi

Throws:

java.security.SignatureException

engineSetParameter

@Deprecated
protected void engineSetParameter(java.lang.String param,
                                 java.lang.Object value)
                           throws java.security.InvalidParameterException

Deprecated.

Specified by:

engineSetParameter in class java.security.SignatureSpi

Throws:

java.security.InvalidParameterException

engineGetParameter

@Deprecated
protected java.lang.Object engineGetParameter(java.lang.String param)
                                       throws java.security.InvalidParameterException

Deprecated.

Specified by:

engineGetParameter in class java.security.SignatureSpi

Throws:

java.security.InvalidParameterException

engineSetParameter

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

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

Overrides:

engineSetParameter in class java.security.SignatureSpi

Parameters:

params - the parameters

Throws:

java.lang.UnsupportedOperationException - if this method is not overridden by a provider

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

engineGetParameters

protected java.security.AlgorithmParameters engineGetParameters()
                                                         throws java.security.InvalidParameterException

Overrides:

engineGetParameters in class java.security.SignatureSpi

Throws:

java.security.InvalidParameterException