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org.bouncycastle.jcajce.provider.asymmetric.elgamal

public Class KeyPairGeneratorSpi

extends KeyPairGenerator
Class Inheritance
Imports
java.security.InvalidAlgorithmParameterException, .KeyPair, .SecureRandom, java.security.spec.AlgorithmParameterSpec, javax.crypto.spec.DHParameterSpec, org.bouncycastle.crypto.AsymmetricCipherKeyPair, .CryptoServicesRegistrar, org.bouncycastle.crypto.generators.ElGamalKeyPairGenerator, .ElGamalParametersGenerator, org.bouncycastle.crypto.params.ElGamalKeyGenerationParameters, .ElGamalParameters, .ElGamalPrivateKeyParameters, .ElGamalPublicKeyParameters, org.bouncycastle.jce.provider.BouncyCastleProvider, org.bouncycastle.jce.spec.ElGamalParameterSpec

Field Summary

Modifier and TypeField and Description
pack-priv int
certainty

pack-priv ElGamalKeyPairGenerator
engine

pack-priv boolean
initialised

pack-priv ElGamalKeyGenerationParameters
param

pack-priv SecureRandom
random

pack-priv int
strength

Constructor Summary

AccessConstructor and Description
public
KeyPairGeneratorSpi()

Method Summary

Modifier and TypeMethod and Description
public KeyPair
generateKeyPair()

Overrides java.security.KeyPairGenerator.generateKeyPair.

Generates a key pair.
public void
initialize(int
the keysize. This is an algorithm-specific metric, such as modulus length, specified in number of bits.
strength, SecureRandom
the source of randomness.
random)

Overrides java.security.KeyPairGenerator.initialize.

Initializes the key pair generator for a certain keysize with the given source of randomness (and a default parameter set).
public void
initialize(AlgorithmParameterSpec
the parameter set used to generate the keys.
params, SecureRandom
the source of randomness.
random)

Overrides java.security.KeyPairGenerator.initialize.

Initializes the key pair generator with the given parameter set and source of randomness.
Inherited from java.security.KeyPairGenerator:
genKeyPairgetAlgorithmgetInstancegetInstancegetInstancegetProviderinitializeinitialize

Field Detail

certaintyback to summary
pack-priv int certainty
engineback to summary
pack-priv ElGamalKeyPairGenerator engine
initialisedback to summary
pack-priv boolean initialised
paramback to summary
pack-priv ElGamalKeyGenerationParameters param
randomback to summary
pack-priv SecureRandom random
strengthback to summary
pack-priv int strength

Constructor Detail

KeyPairGeneratorSpiback to summary
public KeyPairGeneratorSpi()

Method Detail

generateKeyPairback to summary
public KeyPair generateKeyPair()

Overrides java.security.KeyPairGenerator.generateKeyPair.

Doc from java.security.KeyPairGenerator.generateKeyPair.

Generates a key pair.

If this KeyPairGenerator has not been initialized explicitly, provider-specific defaults will be used for the size and other (algorithm-specific) values of the generated keys.

This will generate a new key pair every time it is called.

This method is functionally equivalent to genKeyPair.

Returns:KeyPair

the generated key pair

initializeback to summary
public void initialize(int strength, SecureRandom random)

Overrides java.security.KeyPairGenerator.initialize.

Doc from java.security.KeyPairGenerator.initialize.

Initializes the key pair generator for a certain keysize with the given source of randomness (and a default parameter set).

Parameters
strength:int

the keysize. This is an algorithm-specific metric, such as modulus length, specified in number of bits.

random:SecureRandom

the source of randomness.

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

Overrides java.security.KeyPairGenerator.initialize.

Doc from java.security.KeyPairGenerator.initialize.

Initializes the key pair generator with the given parameter set and source of randomness.

This concrete method has been added to this previously-defined abstract class. This method calls the KeyPairGeneratorSpi initialize method, passing it params and random. That initialize method always throws an UnsupportedOperationException if it is not overridden by the provider.

Parameters
params:AlgorithmParameterSpec

the parameter set used to generate the keys.

random:SecureRandom

the source of randomness.

Exceptions
InvalidAlgorithmParameterException:
if the given parameters are inappropriate for this key pair generator.