de.flexiprovider.nf.iq.iqdsa
Class IQDSAKeyPairGenerator

java.lang.Object
  |
  +--java.security.KeyPairGeneratorSpi
        |
        +--de.flexiprovider.api.keys.KeyPairGenerator
              |
              +--de.flexiprovider.nf.iq.iqdsa.IQDSAKeyPairGenerator

public class IQDSAKeyPairGenerator

extends KeyPairGenerator

This class is used to generate key pairs for the IQDSA signature algorithm (implemented by IQDSASignature.

Author:

Ralf-P. Weinmann

Constructor Summary

IQDSAKeyPairGenerator()

Method Summary

KeyPair	genKeyPair() Generate an IQDSA key pair, consisting of an IQDSAPublicKey and an IQDSAPrivateKey.
void	initialize(AlgorithmParameterSpec params, SecureRandom random) Initialize the IQDSA key pair generator with the specified parameters (supposed to be an instance of IQDSAParameterSpec) and source of randomness.
void	initialize(int keySize, SecureRandom random) Initialize the IQDSA key pair generator for given key size and source of randomness.

Methods inherited from class de.flexiprovider.api.keys.KeyPairGenerator

generateKeyPair, initialize, initialize

Methods inherited from class java.lang.Object

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

Constructor Detail

IQDSAKeyPairGenerator

public IQDSAKeyPairGenerator()

Method Detail

initialize

public void initialize(AlgorithmParameterSpec params,
                       SecureRandom random)
                throws InvalidAlgorithmParameterException

Initialize the IQDSA key pair generator with the specified parameters (supposed to be an instance of IQDSAParameterSpec) and source of randomness. If no parameters are specified, new parameters are generated for the default size using the IQDSAParameterGenerator.

Overrides:

initialize in class KeyPairGenerator

Parameters:

params - the parameters

random - the source of randomness

Throws:

InvalidAlgorithmParameterException - if the parameters are not an instance of IQDSAParameterSpec.

initialize

public void initialize(int keySize,
                       SecureRandom random)

Initialize the IQDSA key pair generator for given key size and source of randomness. The key size is the bit length of the discriminant of the class group.

Overrides:

initialize in class KeyPairGenerator

Parameters:

keySize - the bit length of the discriminant of the class group

random - the source of randomness

genKeyPair

public KeyPair genKeyPair()

Generate an IQDSA key pair, consisting of an IQDSAPublicKey and an IQDSAPrivateKey.

Overrides:

genKeyPair in class KeyPairGenerator

Returns:

the generated key pair