net.sf.mmm.crypto.asymmetric.sign

Class SignatureProcessorFactoryImplCryptorWithHash<PR extends PrivateKey,PU extends PublicKey>

java.lang.Object

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

Type Parameters:

PR - type of PrivateKey.

PU - type of PublicKey.

All Implemented Interfaces:

SignatureFactory<SignatureBinary>, SignatureProcessorFactory<SignatureBinary,PR,PU>

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

Implementation of SignatureProcessorFactory combining a Cryptor 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 AsymmetricCryptorFactory<PR,PU>	cryptorFactory
private HashFactory	hashFactory

Constructor Summary

Constructors

Constructor and Description
SignatureProcessorFactoryImplCryptorWithHash(AsymmetricCryptorFactory<PR,PU> cryptorFactory, HashFactory hashFactory) The constructor.

Method Summary

Modifier and Type	Method and Description
SignatureBinary	createSignature(byte[] data)
SignatureProcessorFactory<SignatureBinary,PR,PU>	getSignatureFactoryWithoutHash()
SignatureSigner<SignatureBinary>	newSigner(PR privateKey)
SignatureVerifier<SignatureBinary>	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

hashFactory

private final HashFactory hashFactory

cryptorFactory

private final AsymmetricCryptorFactory<PR extends PrivateKey,PU extends PublicKey> cryptorFactory

Constructor Detail

SignatureProcessorFactoryImplCryptorWithHash

public SignatureProcessorFactoryImplCryptorWithHash(AsymmetricCryptorFactory<PR,PU> cryptorFactory,
                                                    HashFactory hashFactory)

The constructor.

Parameters:

cryptorFactory - the AsymmetricCryptorFactory to delegate to.

hashFactory - the HashFactory to apply as extension.

Method Detail

newSigner

public SignatureSigner<SignatureBinary> newSigner(PR privateKey)

Specified by:

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

Parameters:

privateKey - the PrivateKey to use for signing.

Returns:

the SignatureSigner for signing.

newVerifier

public SignatureVerifier<SignatureBinary> newVerifier(PU publicKey)

Specified by:

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

Parameters:

publicKey - the PublicKey to use for verifying.

Returns:

the SignatureVerifier for verifying.

createSignature

public SignatureBinary createSignature(byte[] data)

Specified by:

createSignature in interface SignatureFactory<SignatureBinary>

Parameters:

data - the binary signature data.

Returns:

the deserialized SignatureBinary.

getSignatureFactoryWithoutHash

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

Specified by:

getSignatureFactoryWithoutHash in interface SignatureProcessorFactory<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