de.flexiprovider.core.mac
Class HMacKeyGenerator

java.lang.Object
  |
  +--javax.crypto.KeyGeneratorSpi
        |
        +--de.flexiprovider.api.keys.SecretKeyGenerator
              |
              +--de.flexiprovider.core.mac.HMacKeyGenerator

Direct Known Subclasses:

HMacKeyGenerator.DHA256, HMacKeyGenerator.FORK256, HMacKeyGenerator.MD4, HMacKeyGenerator.MD5, HMacKeyGenerator.RIPEMD128, HMacKeyGenerator.RIPEMD160, HMacKeyGenerator.RIPEMD256, HMacKeyGenerator.RIPEMD320, HMacKeyGenerator.SHA1, HMacKeyGenerator.SHA224, HMacKeyGenerator.SHA256, HMacKeyGenerator.SHA384, HMacKeyGenerator.SHA512, HMacKeyGenerator.Tiger

public class HMacKeyGenerator

extends SecretKeyGenerator

Inner Class Summary

static class	HMacKeyGenerator.DHA256
static class	HMacKeyGenerator.FORK256
static class	HMacKeyGenerator.MD4
static class	HMacKeyGenerator.MD5
static class	HMacKeyGenerator.RIPEMD128
static class	HMacKeyGenerator.RIPEMD160
static class	HMacKeyGenerator.RIPEMD256
static class	HMacKeyGenerator.RIPEMD320
static class	HMacKeyGenerator.SHA1
static class	HMacKeyGenerator.SHA224
static class	HMacKeyGenerator.SHA256
static class	HMacKeyGenerator.SHA384
static class	HMacKeyGenerator.SHA512
static class	HMacKeyGenerator.Tiger

Constructor Summary

protected

HMacKeyGenerator(int keySize) Constructor.

Method Summary

SecretKey	generateKey() Generate an HMac key.
void	init(AlgorithmParameterSpec params, SecureRandom random) Initialize the key generator.
void	init(int keySize, SecureRandom random) Initialize the key generator.
void	init(SecureRandom random) Initialize the key generator with a source of randomness.

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

engineGenerateKey, engineInit, engineInit, engineInit, init, init, init

Methods inherited from class java.lang.Object

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

Constructor Detail

HMacKeyGenerator

protected HMacKeyGenerator(int keySize)

Constructor. Set the key size.

Parameters:

keySize - the key size in bits

Method Detail

init

public void init(AlgorithmParameterSpec params,
                 SecureRandom random)

Initialize the key generator. Since the key size is set by the concrete instantiations and no further parameters are used, the parameters are ignored and only the source of randomness is set.

Overrides:

init in class SecretKeyGenerator

Parameters:

params - the parameters (not used)

random - the source of randomness

init

public void init(int keySize,
                 SecureRandom random)

Initialize the key generator. Since the key size is set by the concrete instantiations, the key size parameter is ignored and only the source of randomness is set.

Overrides:

init in class SecretKeyGenerator

Parameters:

keySize - the key size (not used)

random - the source of randomness

init

public void init(SecureRandom random)

Initialize the key generator with a source of randomness.

Overrides:

init in class SecretKeyGenerator

Parameters:

random - the source of randomness

generateKey

public SecretKey generateKey()

Generate an HMac key.

Overrides:

generateKey in class SecretKeyGenerator

Returns:

the generated HMacKey