HmacSHA1KeyGenerator

extends KeyGeneratorSpi

java.lang.Object
↳	javax.crypto.KeyGeneratorSpi
	↳	com.sun.crypto.provider.HmacSHA1KeyGenerator

Class Overview

This class generates a secret key for use with the HMAC-SHA1 algorithm.

Summary

Public Constructors
	HmacSHA1KeyGenerator() Verify the SunJCE provider in the constructor.

Protected Methods
SecretKey	engineGenerateKey() Generates an HMAC-SHA1 key.
void	engineInit(int keysize, SecureRandom random) Initializes this key generator for a certain keysize, using the given source of randomness.
void	engineInit(SecureRandom random) Initializes this key generator.
void	engineInit(AlgorithmParameterSpec params, SecureRandom random) Initializes this key generator with the specified parameter set and a user-provided source of randomness.

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Inherited Methods

From class javax.crypto.KeyGeneratorSpi

From class java.lang.Object

Object	clone() Creates and returns a copy of this object.
boolean	equals(Object obj) Indicates whether some other object is "equal to" this one.
void	finalize() Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
final Class<?>	getClass() Returns the runtime class of this `Object`.
int	hashCode() Returns a hash code value for the object.
final void	notify() Wakes up a single thread that is waiting on this object's monitor.
final void	notifyAll() Wakes up all threads that are waiting on this object's monitor.
String	toString() Returns a string representation of the object.
final void	wait() Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object.
final void	wait(long timeout, int nanos) Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object, or some other thread interrupts the current thread, or a certain amount of real time has elapsed.
final void	wait(long timeout) Causes the current thread to wait until either another thread invokes the `notify()` method or the `notifyAll()` method for this object, or a specified amount of time has elapsed.

Public Constructors

public HmacSHA1KeyGenerator ()

Verify the SunJCE provider in the constructor.

Throws

SecurityException	if fails to verify its own integrity

Protected Methods

protected SecretKey engineGenerateKey ()

Generates an HMAC-SHA1 key.

Returns

the new HMAC-SHA1 key

protected void engineInit (int keysize, SecureRandom random)

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

Parameters

keysize	the keysize. This is an algorithm-specific metric specified in number of bits.
random	the source of randomness for this key generator

protected void engineInit (SecureRandom random)

Initializes this key generator.

Parameters

random	the source of randomness for this generator

protected void engineInit (AlgorithmParameterSpec params, SecureRandom random)

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

Parameters

params	the key generation parameters
random	the source of randomness for this key generator

Throws

InvalidAlgorithmParameterException	if `params` is inappropriate for this key generator

Classes

HmacSHA1KeyGenerator

Class Overview

Summary

Public Constructors

public HmacSHA1KeyGenerator ()

Throws

Protected Methods

protected SecretKey engineGenerateKey ()

Returns

protected void engineInit (int keysize, SecureRandom random)

Parameters

protected void engineInit (SecureRandom random)

Parameters

protected void engineInit (AlgorithmParameterSpec params, SecureRandom random)

Parameters

Throws