net.sf.mmm.crypto.asymmetric.sign

Class SignatureProcessorFactoryImplWithHash<S extends SignatureBinary,PR extends PrivateKey,PU extends PublicKey>

java.lang.Object

net.sf.mmm.crypto.asymmetric.sign.SignatureProcessorFactoryImplWithHash<S,PR,PU>

Type Parameters:

S - type of SignatureBinary.

PR - type of PrivateKey.

PU - type of PublicKey.

All Implemented Interfaces:

SignatureFactory<S>, SignatureProcessorFactory<S,PR,PU>

public class SignatureProcessorFactoryImplWithHash<S extends SignatureBinary,PR extends PrivateKey,PU extends PublicKey>
extends Object
implements SignatureProcessorFactory<S,PR,PU>

Implementation of SignatureProcessorFactory combining a SignatureProcessor with a HashCreator.

Since:

1.0.0

Author:

Joerg Hohwiller (hohwille at users.sourceforge.net)

Field Summary

Fields

Modifier and Type	Field and Description
private HashFactory	hashFactory
private SignatureProcessorFactory<S,PR,PU>	signatureFactory

Constructor Summary

Constructors

Constructor and Description
SignatureProcessorFactoryImplWithHash(SignatureProcessorFactory<S,PR,PU> signatureFactory, HashFactory hashFactory) The constructor.

Method Summary

Modifier and Type	Method and Description
S	createSignature(byte[] data)
SignatureProcessorFactory<S,PR,PU>	getSignatureFactoryWithoutHash()
SignatureSigner<S>	newSigner(PR privateKey)
SignatureVerifier<S>	newVerifier(PU publicKey)
String	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.asymmetric.sign.SignatureProcessorFactory

newSignerUnsafe, newVerifierUnsafe

Field Detail

signatureFactory

private final SignatureProcessorFactory<S extends SignatureBinary,PR extends PrivateKey,PU extends PublicKey> signatureFactory

hashFactory

private final HashFactory hashFactory

Constructor Detail

SignatureProcessorFactoryImplWithHash

public SignatureProcessorFactoryImplWithHash(SignatureProcessorFactory<S,PR,PU> signatureFactory,
                                             HashFactory hashFactory)

The constructor.

Parameters:

signatureFactory - the SignatureProcessorFactory to delegate to.

hashFactory - the HashFactory to apply before signing or verifying.

Method Detail

newSigner

public SignatureSigner<S> newSigner(PR privateKey)

Specified by:

newSigner in interface SignatureProcessorFactory<S extends SignatureBinary,PR extends PrivateKey,PU extends PublicKey>

Parameters:

privateKey - the PrivateKey to use for signing.

Returns:

the SignatureSigner for signing.

newVerifier

public SignatureVerifier<S> newVerifier(PU publicKey)

Specified by:

newVerifier in interface SignatureProcessorFactory<S extends SignatureBinary,PR extends PrivateKey,PU extends PublicKey>

Parameters:

publicKey - the PublicKey to use for verifying.

Returns:

the SignatureVerifier for verifying.

createSignature

public S createSignature(byte[] data)

Specified by:

createSignature in interface SignatureFactory<S extends SignatureBinary>

Parameters:

data - the binary signature data.

Returns:

the deserialized SignatureBinary.

getSignatureFactoryWithoutHash

public SignatureProcessorFactory<S,PR,PU> getSignatureFactoryWithoutHash()

Specified by:

getSignatureFactoryWithoutHash in interface SignatureProcessorFactory<S extends SignatureBinary,PR extends PrivateKey,PU extends PublicKey>

Returns:

an instance of this SignatureFactory that does not hash before signing so you can control the hashing manually and only sign the resulting hash (e.g. to reuse the hash value for further calculations).

toString

public String toString()

Overrides:

toString in class Object