Bouncy Castle Cryptography 1.11 API Specification: Class JCEKeyGenerator

org.bouncycastle.jce.provider
Class JCEKeyGenerator

java.lang.Object
  |
  +--javax.crypto.KeyGeneratorSpi
        |
        +--org.bouncycastle.jce.provider.JCEKeyGenerator

Direct Known Subclasses:

JCEKeyGenerator.AES, JCEKeyGenerator.Blowfish, JCEKeyGenerator.CAST5, JCEKeyGenerator.CAST6, JCEKeyGenerator.DES, JCEKeyGenerator.DESede, JCEKeyGenerator.IDEA, JCEKeyGenerator.RC2, JCEKeyGenerator.RC4, JCEKeyGenerator.RC5, JCEKeyGenerator.RC564, JCEKeyGenerator.RC6, JCEKeyGenerator.Rijndael, JCEKeyGenerator.Serpent, JCEKeyGenerator.Skipjack, JCEKeyGenerator.Twofish

public class JCEKeyGenerator

extends KeyGeneratorSpi

Inner Class Summary

static class	JCEKeyGenerator.AES AES
static class	JCEKeyGenerator.Blowfish Blowfish
static class	JCEKeyGenerator.CAST5 CAST5
static class	JCEKeyGenerator.CAST6 CAST6
static class	JCEKeyGenerator.DES DES
static class	JCEKeyGenerator.DESede DESede - the default for this is to generate a key in a-b-a format that's 24 bytes long but has 16 bytes of key material (the first 8 bytes is repeated as the last 8 bytes).
static class	JCEKeyGenerator.IDEA IDEA
static class	JCEKeyGenerator.RC2 RC2
static class	JCEKeyGenerator.RC4 RC4
static class	JCEKeyGenerator.RC5 RC5
static class	JCEKeyGenerator.RC564 RC5
static class	JCEKeyGenerator.RC6 RC6
static class	JCEKeyGenerator.Rijndael Rijndael
static class	JCEKeyGenerator.Serpent Serpent
static class	JCEKeyGenerator.Skipjack SKIPJACK
static class	JCEKeyGenerator.Twofish Twofish

Field Summary

protected java.lang.String	algName
protected int	defaultKeySize
protected CipherKeyGenerator	engine
protected int	keySize
protected boolean	uninitialised

Constructor Summary

protected

JCEKeyGenerator(java.lang.String algName, int defaultKeySize, CipherKeyGenerator engine)

Method Summary

protected SecretKey	engineGenerateKey() Generates a secret key.
protected void	engineInit(java.security.spec.AlgorithmParameterSpec params, java.security.SecureRandom random) Initializes the key generator with the specified parameter set and a user-provided source of randomness.
protected void	engineInit(int keySize, java.security.SecureRandom random) Initializes this key generator for a certain keysize, using the given source of randomness.
protected void	engineInit(java.security.SecureRandom random) Initializes the key generator.

Methods inherited from class java.lang.Object

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

Field Detail

algName

protected java.lang.String algName

keySize

protected int keySize

defaultKeySize

protected int defaultKeySize

engine

protected CipherKeyGenerator engine

uninitialised

protected boolean uninitialised

Constructor Detail

JCEKeyGenerator

protected JCEKeyGenerator(java.lang.String algName,
                          int defaultKeySize,
                          CipherKeyGenerator engine)

Method Detail

engineInit

protected void engineInit(java.security.spec.AlgorithmParameterSpec params,
                          java.security.SecureRandom random)
                   throws java.security.InvalidAlgorithmParameterException

Description copied from class: KeyGeneratorSpi

Initializes the key generator with the specified parameter set and a user-provided source of randomness.

Overrides:

engineInit in class KeyGeneratorSpi

Following copied from class: javax.crypto.KeyGeneratorSpi

Parameters:

params - the key generation parameters

random - the source of randomness for this key generator

Throws:

java.security.InvalidAlgorithmParameterException - if params is inappropriate for this key generator

engineInit

protected void engineInit(java.security.SecureRandom random)

Description copied from class: KeyGeneratorSpi

Initializes the key generator.

Overrides:

engineInit in class KeyGeneratorSpi

Following copied from class: javax.crypto.KeyGeneratorSpi

Parameters:

random - the source of randomness for this generator

engineInit

protected void engineInit(int keySize,
                          java.security.SecureRandom random)

Description copied from class: KeyGeneratorSpi

Initializes this key generator for a certain keysize, using the given source of randomness.

Overrides:

engineInit in class KeyGeneratorSpi

Following copied from class: javax.crypto.KeyGeneratorSpi

Parameters:

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

random - the source of randomness for this key generator.

Throws:

java.security.InvalidParameterException - if keysize is wrong or not supported.

engineGenerateKey

protected SecretKey engineGenerateKey()

Description copied from class: KeyGeneratorSpi

Generates a secret key.

Overrides:

engineGenerateKey in class KeyGeneratorSpi

Following copied from class: javax.crypto.KeyGeneratorSpi

Returns:

the new key.