Package org.bouncycastle.crypto.fips

Class FipsDSA.OperatorFactory

java.lang.Object

org.bouncycastle.crypto.fips.FipsSignatureOperatorFactory<FipsDSA.Parameters>

org.bouncycastle.crypto.fips.FipsDSA.OperatorFactory

All Implemented Interfaces:

SignatureOperatorFactory<FipsDSA.Parameters>

Enclosing class:

FipsDSA

public static final class FipsDSA.OperatorFactory
extends FipsSignatureOperatorFactory<FipsDSA.Parameters>

Operator factory for creating DSA based signing and verification operators.

Constructor Summary

Constructors

Constructor	Description
OperatorFactory()

Method Summary

Modifier and Type	Method	Description
FipsOutputSignerUsingSecureRandom<FipsDSA.Parameters>	createSigner(AsymmetricPrivateKey key, FipsDSA.Parameters parameters)	Return a generator of DSA signatures.
FipsOutputValidator<FipsDSA.Parameters>	createValidator(AsymmetricPublicKey key, FipsDSA.Parameters parameters, byte[] signature)	Create a validator for DSA signatures.
FipsOutputVerifier<FipsDSA.Parameters>	createVerifier(AsymmetricPublicKey key, FipsDSA.Parameters parameters)	Create a verifier for DSA signatures.

Methods inherited from class java.lang.Object

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

Constructor Details

OperatorFactory

public OperatorFactory()

Method Details

createSigner

public FipsOutputSignerUsingSecureRandom<FipsDSA.Parameters> createSigner(AsymmetricPrivateKey key,
 FipsDSA.Parameters parameters)

Return a generator of DSA signatures. Note this operator needs to be associated with a SecureRandom to be fully initialised. FIPS 186-5 no longer approves of DSA, hence signing is disabled for FIPS mode.

Specified by:

createSigner in interface SignatureOperatorFactory<FipsDSA.Parameters>

Specified by:

createSigner in class FipsSignatureOperatorFactory<FipsDSA.Parameters>

Parameters:

key - the key to initialize the signature generator with.

parameters - parameters required to configure the generation.

Returns:

an OutputSignerUsingSecureRandom.

createVerifier

public FipsOutputVerifier<FipsDSA.Parameters> createVerifier(AsymmetricPublicKey key,
 FipsDSA.Parameters parameters)

Create a verifier for DSA signatures.

Specified by:

createVerifier in interface SignatureOperatorFactory<FipsDSA.Parameters>

Specified by:

createVerifier in class FipsSignatureOperatorFactory<FipsDSA.Parameters>

Parameters:

key - the key to initialize the verifier with.

parameters - parameters required to configure the verification.

Returns:

an OutputVerifier.

createValidator

public FipsOutputValidator<FipsDSA.Parameters> createValidator(AsymmetricPublicKey key,
 FipsDSA.Parameters parameters,
 byte[] signature)
                                                        throws InvalidSignatureException

Create a validator for DSA signatures.

Parameters:

key - the key to initialize the verifier with.

parameters - parameters required to configure the verification.

signature - the signature the data is to be validated against.

Returns:

an OutputVerifier.

Throws:

InvalidSignatureException