totalcross.crypto.signature

Class PKCS1Signature

java.lang.Object

totalcross.crypto.signature.Signature

totalcross.crypto.signature.PKCS1Signature

public class PKCS1Signature
extends Signature

This class implements the PKCS #1 signature algorithm.

Field Summary

Fields

Modifier and Type	Field and Description
protected Digest	digest

Fields inherited from class totalcross.crypto.signature.Signature

key, operation, OPERATION_SIGN, OPERATION_VERIFY

Constructor Summary

Constructors

Constructor and Description
PKCS1Signature(Digest digest) Creates a new PKCS1Signature algorithm with the given message digest.

Method Summary

Modifier and Type	Method and Description
protected void	doReset()
protected byte[]	doSign(byte[] data)
protected boolean	doVerify(byte[] data, byte[] signature)
protected void	finalize()
java.lang.String	getAlgorithm() Returns the name of the algorithm.
protected boolean	isKeySupported(Key key, int operation)

Methods inherited from class totalcross.crypto.signature.Signature

reset, sign, toString, update, update, update, verify

Methods inherited from class java.lang.Object

clone, equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

digest

protected Digest digest

Constructor Detail

PKCS1Signature

public PKCS1Signature(Digest digest)
               throws NoSuchAlgorithmException,
                      CryptoException

Creates a new PKCS1Signature algorithm with the given message digest.

Parameters:

digest - The message digest.

Throws:

CryptoException - If the given message digest is not supported.

NoSuchAlgorithmException - If no Provider supports a Signature implementation for the specified algorithm.

Method Detail

getAlgorithm

public java.lang.String getAlgorithm()

Returns the name of the algorithm.

Specified by:

getAlgorithm in class Signature

Returns:

The name of the algorithm used.

isKeySupported

protected boolean isKeySupported(Key key,
                                 int operation)

Specified by:

isKeySupported in class Signature

doReset

protected void doReset()
                throws NoSuchAlgorithmException,
                       CryptoException

Specified by:

doReset in class Signature

Throws:

NoSuchAlgorithmException

CryptoException

doSign

protected byte[] doSign(byte[] data)
                 throws CryptoException

Specified by:

doSign in class Signature

Throws:

CryptoException

doVerify

protected boolean doVerify(byte[] data,
                           byte[] signature)
                    throws CryptoException

Specified by:

doVerify in class Signature

Throws:

CryptoException

finalize

protected final void finalize()

Overrides:

finalize in class java.lang.Object