Package org.bouncycastle.jcajce.spec

Class PBKDF2KeySpec

java.lang.Object

javax.crypto.spec.PBEKeySpec

org.bouncycastle.jcajce.spec.PBKDF2KeySpec

All Implemented Interfaces:

KeySpec

public class PBKDF2KeySpec
extends PBEKeySpec

Extension of PBEKeySpec which takes into account the PRF algorithm setting available in PKCS#5 PBKDF2.

Constructor Summary

Constructors

Constructor	Description
PBKDF2KeySpec(char[] password, byte[] salt, int iterationCount, int keySize, AlgorithmIdentifier prf)	Base constructor.

Method Summary

Modifier and Type	Method	Description
AlgorithmIdentifier	getPrf()	Return an AlgorithmIdentifier representing the PRF.
boolean	isDefaultPrf()	Return true if this spec is for the default PRF (HmacSHA1), false otherwise.

Methods inherited from class javax.crypto.spec.PBEKeySpec

clearPassword, getIterationCount, getKeyLength, getPassword, getSalt

Methods inherited from class java.lang.Object

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

Constructor Details

PBKDF2KeySpec

public PBKDF2KeySpec(char[] password,
 byte[] salt,
 int iterationCount,
 int keySize,
 AlgorithmIdentifier prf)

Base constructor.

Parameters:

password - password to use as the seed of the PBE key generator.

salt - salt to use in the generator,

iterationCount - iteration count to use in the generator.

keySize - size of the key to be generated (in bits).

prf - identifier and parameters for the PRF algorithm to use.

Method Details

isDefaultPrf

public boolean isDefaultPrf()

Return true if this spec is for the default PRF (HmacSHA1), false otherwise.

Returns:

true if this spec uses the default PRF, false otherwise.

getPrf

public AlgorithmIdentifier getPrf()

Return an AlgorithmIdentifier representing the PRF.

Returns:

the PRF's AlgorithmIdentifier.