org.bouncycastle.jcajce.spec
Class HKDFParameterSpec

java.lang.Object
  org.bouncycastle.jcajce.spec.HKDFParameterSpec

All Implemented Interfaces:

java.security.spec.AlgorithmParameterSpec, java.security.spec.KeySpec

public class HKDFParameterSpec

extends java.lang.Object

implements java.security.spec.KeySpec, java.security.spec.AlgorithmParameterSpec

Constructor Summary

HKDFParameterSpec(byte[] ikm, byte[] salt, byte[] info, int outputLength)

Method Summary

byte[]	getIKM() Returns the input keying material or seed.
byte[]	getInfo() Returns the info field, which may be empty (null is converted to empty).
int	getOutputLength() Returns the length (in bytes) of the output resulting from these parameters.
byte[]	getSalt() Returns the salt, or null if the salt should be generated as a byte array of HashLen zeros.
boolean	skipExtract() Returns if step 1: extract has to be skipped or not

Methods inherited from class java.lang.Object

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

Constructor Detail

HKDFParameterSpec

public HKDFParameterSpec(byte[] ikm,
                         byte[] salt,
                         byte[] info,
                         int outputLength)

Method Detail

getIKM

public byte[] getIKM()

Returns the input keying material or seed.

Returns:

the keying material

skipExtract

public boolean skipExtract()

Returns if step 1: extract has to be skipped or not

Returns:

true for skipping, false for no skipping of step 1

getSalt

public byte[] getSalt()

Returns the salt, or null if the salt should be generated as a byte array of HashLen zeros.

Returns:

the salt, or null

getInfo

public byte[] getInfo()

Returns the info field, which may be empty (null is converted to empty).

Returns:

the info field, never null

getOutputLength

public int getOutputLength()

Returns the length (in bytes) of the output resulting from these parameters.

Returns:

output length, in bytes.