net.sf.mmm.crypto.asymmetric.sign

Class SignatureProcessorImpl

java.lang.Object

net.sf.mmm.crypto.algorithm.AbstractSecurityAlgorithm

net.sf.mmm.crypto.asymmetric.sign.SignatureProcessorImpl

All Implemented Interfaces:

CryptoAlgorithm, SignatureProcessor, CryptoChunker, CryptoProcessor

Direct Known Subclasses:

SignatureSignerImpl, SignatureVerifierImpl

public abstract class SignatureProcessorImpl
extends AbstractSecurityAlgorithm
implements SignatureProcessor

Implementation of SignatureProcessor based on Signature.

Since:

1.0.0

Author:

Joerg Hohwiller (hohwille at users.sourceforge.net)

Field Summary

Fields

Modifier and Type	Field and Description
private Signature	signature

Constructor Summary

Constructors

Constructor and Description
SignatureProcessorImpl(Signature signature) The constructor.

Method Summary

Modifier and Type	Method and Description
String	getAlgorithm()
protected Signature	getSignature()
void	reset() Will reset the internal state of this object.
void	update(byte[] input, int offset, int length)

Methods inherited from class net.sf.mmm.crypto.algorithm.AbstractSecurityAlgorithm

creationFailedException, creationFailedException, creationFailedException, creationFailedException, getAlgorithm, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface net.sf.mmm.crypto.CryptoChunker

update, update

Methods inherited from interface net.sf.mmm.crypto.CryptoProcessor

process, process, process, process

Field Detail

signature

private final Signature signature

Constructor Detail

SignatureProcessorImpl

public SignatureProcessorImpl(Signature signature)

The constructor.

Parameters:

signature - the Signature to use.

Method Detail

getSignature

protected Signature getSignature()

Returns:

the underlying Signature.

getAlgorithm

public String getAlgorithm()

Specified by:

getAlgorithm in interface CryptoAlgorithm

Returns:

the name of the underlying algorithm (e.g. "RSA", "NONEwithECDSA", etc.).

See Also:

Key.getAlgorithm(), Signature.getAlgorithm(), MessageDigest.getAlgorithm(), SecureRandom.getAlgorithm(), Cipher.getAlgorithm()

update

public void update(byte[] input,
                   int offset,
                   int length)

Specified by:

update in interface CryptoChunker

Parameters:

input - the next chunk of data.

offset - the index where to start reading data from input.

length - the number of bytes to read from input.

See Also:

MessageDigest.update(byte[], int, int), Signature.update(byte[], int, int)

reset

public void reset()

Description copied from interface: CryptoProcessor

Will reset the internal state of this object. Please note that complex algorithms especially for Cryptor may not reusable. It is therefore preferable to always create a fresh instance for each cryptographic task.

Specified by:

reset in interface CryptoProcessor

See Also:

MessageDigest.reset()