java.security
Class SignatureSpi

java.lang.Object
  java.security.SignatureSpi

Direct Known Subclasses:

Signature

public abstract class SignatureSpi
extends Object

Field Summary

protected SecureRandom

appRandom

Constructor Summary

SignatureSpi()

Method Summary

Object	clone() Returns a new instance of the same class as the receiver, whose slots have been filled in with the values in the slots of the receiver.
protected abstract Object	engineGetParameter(String param) Deprecated. There is no generally accepted parameter naming convention.
protected AlgorithmParameters	engineGetParameters()
protected abstract void	engineInitSign(PrivateKey privateKey)
protected void	engineInitSign(PrivateKey privateKey, SecureRandom random)
protected abstract void	engineInitVerify(PublicKey publicKey)
protected void	engineSetParameter(AlgorithmParameterSpec params)
protected abstract void	engineSetParameter(String param, Object value) Deprecated. Use engineSetParameter
protected abstract byte[]	engineSign()
protected int	engineSign(byte[] outbuf, int offset, int len)
protected abstract void	engineUpdate(byte b)
protected abstract void	engineUpdate(byte[] b, int off, int len)
protected void	engineUpdate(ByteBuffer input)
protected abstract boolean	engineVerify(byte[] sigBytes)
protected boolean	engineVerify(byte[] sigBytes, int offset, int length)

Methods inherited from class java.lang.Object

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

Field Detail

appRandom

protected SecureRandom appRandom

Constructor Detail

SignatureSpi

public SignatureSpi()

Method Detail

engineInitVerify

protected abstract void engineInitVerify(PublicKey publicKey)
                                  throws InvalidKeyException

Throws:

InvalidKeyException

engineInitSign

protected abstract void engineInitSign(PrivateKey privateKey)
                                throws InvalidKeyException

Throws:

InvalidKeyException

engineInitSign

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

Throws:

InvalidKeyException

engineUpdate

protected abstract void engineUpdate(byte b)
                              throws SignatureException

Throws:

SignatureException

engineUpdate

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

Throws:

SignatureException

engineUpdate

protected void engineUpdate(ByteBuffer input)

engineSign

protected abstract byte[] engineSign()
                              throws SignatureException

Throws:

SignatureException

engineSign

protected int engineSign(byte[] outbuf,
                         int offset,
                         int len)
                  throws SignatureException

Throws:

SignatureException

engineVerify

protected abstract boolean engineVerify(byte[] sigBytes)
                                 throws SignatureException

Throws:

SignatureException

engineVerify

protected boolean engineVerify(byte[] sigBytes,
                               int offset,
                               int length)
                        throws SignatureException

Throws:

SignatureException

engineSetParameter

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

Deprecated. Use engineSetParameter

Throws:

InvalidParameterException

engineSetParameter

protected void engineSetParameter(AlgorithmParameterSpec params)
                           throws InvalidAlgorithmParameterException

Throws:

InvalidAlgorithmParameterException

engineGetParameters

protected AlgorithmParameters engineGetParameters()

engineGetParameter

protected abstract Object engineGetParameter(String param)
                                      throws InvalidParameterException

Deprecated. There is no generally accepted parameter naming convention.

Throws:

InvalidParameterException

clone

public Object clone()
             throws CloneNotSupportedException

Description copied from class: Object

Returns a new instance of the same class as the receiver, whose slots have been filled in with the values in the slots of the receiver.

Classes which wish to support cloning must specify that they implement the Cloneable interface, since the implementation checks for this.

Overrides:

clone in class Object

Returns:

Object a shallow copy of this object.

Throws:

CloneNotSupportedException - if the receiver's class does not implement the interface Cloneable.