org.bouncycastle.jcajce.provider.symmetric.util

Class BaseKeyGenerator

java.lang.Object

javax.crypto.KeyGeneratorSpi

org.bouncycastle.jcajce.provider.symmetric.util.BaseKeyGenerator

Direct Known Subclasses:

AES.KeyGen, ARC4.KeyGen, Blowfish.KeyGen, DES.KeyGenerator, DESede.KeyGenerator, DESede.KeyGenerator3, MD5.KeyGenerator, SHA1.KeyGenerator, SHA224.KeyGenerator, SHA256.KeyGenerator, SHA384.KeyGenerator, SHA512.KeyGenerator

public class BaseKeyGenerator
extends KeyGeneratorSpi

Field Summary

Fields

Modifier and Type	Field and Description
protected String	algName
protected int	defaultKeySize
protected CipherKeyGenerator	engine
protected int	keySize
protected boolean	uninitialised

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	BaseKeyGenerator(String algName, int defaultKeySize, CipherKeyGenerator engine)

Method Summary

Modifier and Type	Method and Description
protected SecretKey	engineGenerateKey() Generates a secret key.
protected void	engineInit(AlgorithmParameterSpec params, SecureRandom random) Initializes this KeyGeneratorSpi instance with the specified algorithm parameters and randomness source.
protected void	engineInit(int keySize, SecureRandom random) Initializes this KeyGenerator instance for the specified key size (in bits) using the specified randomness source.
protected void	engineInit(SecureRandom random) Initializes this KeyGenerator with the specified randomness source.

Methods inherited from class java.lang.Object

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

Field Detail

algName

protected String algName

keySize

protected int keySize

defaultKeySize

protected int defaultKeySize

engine

protected CipherKeyGenerator engine

uninitialised

protected boolean uninitialised

Constructor Detail

BaseKeyGenerator

protected BaseKeyGenerator(String algName,
                           int defaultKeySize,
                           CipherKeyGenerator engine)

Method Detail

engineInit

protected void engineInit(AlgorithmParameterSpec params,
                          SecureRandom random)
                   throws InvalidAlgorithmParameterException

Description copied from class: KeyGeneratorSpi

Initializes this KeyGeneratorSpi instance with the specified algorithm parameters and randomness source.

Specified by:

engineInit in class KeyGeneratorSpi

Parameters:

params - the parameters for the key generation algorithm.

random - the randomness source for any random bytes.

Throws:

InvalidAlgorithmParameterException - if the parameters cannot be uses to initialize this key generator algorithm.

engineInit

protected void engineInit(SecureRandom random)

Description copied from class: KeyGeneratorSpi

Initializes this KeyGenerator with the specified randomness source.

Specified by:

engineInit in class KeyGeneratorSpi

Parameters:

random - the randomness source for any random bytes.

engineInit

protected void engineInit(int keySize,
                          SecureRandom random)

Description copied from class: KeyGeneratorSpi

Initializes this KeyGenerator instance for the specified key size (in bits) using the specified randomness source.

Specified by:

engineInit in class KeyGeneratorSpi

Parameters:

keySize - the size of the key (in bits).

random - the randomness source for any random bytes.

engineGenerateKey

protected SecretKey engineGenerateKey()

Description copied from class: KeyGeneratorSpi

Generates a secret key.

Specified by:

engineGenerateKey in class KeyGeneratorSpi

Returns:

the generated secret key.