com.ibm.crypto.fips.provider

Class RSASignature

java.lang.Object

java.security.SignatureSpi

com.ibm.crypto.fips.provider.RSASignature

Direct Known Subclasses:

RSASignature.SHA1withRSA, RSASignature.SHA224withRSA, RSASignature.SHA256withRSA, RSASignature.SHA384withRSA, RSASignature.SHA512withRSA

public abstract class RSASignature
extends java.security.SignatureSpi

PKCS#1 RSA 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). We support MD2, MD5, SHA-1, SHA-224, SHA-256, SHA-384, and SHA-512.

Since:

1.5

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	RSASignature.SHA1withRSA
static class	RSASignature.SHA224withRSA
static class	RSASignature.SHA256withRSA
static class	RSASignature.SHA384withRSA
static class	RSASignature.SHA512withRSA

Field Summary

Fields inherited from class java.security.SignatureSpi

appRandom

Method Summary

Methods

Modifier and Type	Method and Description
static byte[]	decodeSignature(com.ibm.security.util.ObjectIdentifier oid, byte[] signature) Decode the signature data.
static byte[]	encodeSignature(com.ibm.security.util.ObjectIdentifier oid, byte[] digest) Encode the digest, return the to-be-signed data.
protected java.lang.Object	engineGetParameter(java.lang.String param) Deprecated.
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.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	internalInitSign(java.security.PrivateKey privateKey)
protected void	internalInitSign(java.security.PrivateKey privateKey, java.security.SecureRandom random)
protected void	internalInitVerify(java.security.PublicKey publicKey)
protected byte[]	internalSign()
protected void	internalUpdate(byte b)
protected void	internalUpdate(byte[] b, int off, int len)
protected void	internalUpdate(java.nio.ByteBuffer b)
protected boolean	internalVerify(byte[] sigBytes)

Methods inherited from class java.security.SignatureSpi

clone, engineGetParameters, engineSetParameter, engineSign, engineVerify

Methods inherited from class java.lang.Object

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

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

internalInitVerify

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

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

internalInitSign

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

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

internalInitSign

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

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

internalUpdate

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

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

internalUpdate

protected void internalUpdate(java.nio.ByteBuffer b)

engineSign

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

Specified by:

engineSign in class java.security.SignatureSpi

Throws:

java.security.SignatureException

internalSign

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

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

internalVerify

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

Throws:

java.security.SignatureException

encodeSignature

public static byte[] encodeSignature(com.ibm.security.util.ObjectIdentifier oid,
                     byte[] digest)
                              throws java.io.IOException

Encode the digest, return the to-be-signed data. Also used by the PKCS#11 provider.

Throws:

java.io.IOException

decodeSignature

public static byte[] decodeSignature(com.ibm.security.util.ObjectIdentifier oid,
                     byte[] signature)
                              throws java.io.IOException

Decode the signature data. Verify that the object identifier matches and return the message digest.

Throws:

java.io.IOException

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