ibm.security.internal.spec

Class HKDFParameterSpec

java.lang.Object

ibm.security.internal.spec.HKDFParameterSpec

All Implemented Interfaces:

java.security.spec.AlgorithmParameterSpec

public class HKDFParameterSpec
extends java.lang.Object
implements java.security.spec.AlgorithmParameterSpec

This class specifies the set of parameters used with HKDFParameterSpec

Since:

1.8

Constructor Summary

Constructors

Constructor and Description
HKDFParameterSpec(byte[] inKeyMaterial, byte[] salt, byte[] info, long okmLength, java.lang.String keyAlgorithm) Constructs a parameter set for HKDFParameterSpec.
HKDFParameterSpec(SecretKey inKey, byte[] salt, byte[] info, long okmLength, java.lang.String keyAlgorithm) Constructs a parameter set for HKDFParameterSpec.

Method Summary

Modifier and Type	Method and Description
byte[]	getInfo() Returns the info that contains optional context and application specific information
byte[]	getInKeyMaterial() Returns the input key material
java.lang.String	getKeyAlgorithm() Returns the name of the key algorithm
long	getOkmLength() Returns the length of output Key Material
byte[]	getSalt() Returns the salt

Methods inherited from class java.lang.Object

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

Constructor Detail

HKDFParameterSpec

public HKDFParameterSpec(byte[] inKeyMaterial,
                         byte[] salt,
                         byte[] info,
                         long okmLength,
                         java.lang.String keyAlgorithm)

Constructs a parameter set for HKDFParameterSpec. The parameters are copied from the parameters to protect against subsequent modification.

Parameters:

inKeyMaterial - the inKeyMaterial.

salt - the salt.

info - the info that contains optional context and application specific information.

okmLength - output Key material length.

keyAlgorithm - the name of the algorithm to use when creating SecretKey.

Throws:

java.lang.IllegalArgumentException - if input key material is null.

HKDFParameterSpec

public HKDFParameterSpec(SecretKey inKey,
                         byte[] salt,
                         byte[] info,
                         long okmLength,
                         java.lang.String keyAlgorithm)

Constructs a parameter set for HKDFParameterSpec. The parameters are copied from the parameters to protect against subsequent modification.

Parameters:

inKey - the secret input key. Cannot be null.

salt - the salt.

info - the info that contains optional context and application specific information.

okmLength - output Key material length.

keyAlgorithm - the name of the algorithm to use when creating SecretKey.

Throws:

java.lang.IllegalArgumentException - if input key is null.

Method Detail

getSalt

public byte[] getSalt()

Returns the salt

Returns:

the salt. Returns a new array each time this method is called.

getInKeyMaterial

public byte[] getInKeyMaterial()

Returns the input key material

Returns:

the input key material.

getKeyAlgorithm

public java.lang.String getKeyAlgorithm()

Returns the name of the key algorithm

Returns:

the name of the key algorithm.

getInfo

public byte[] getInfo()

Returns the info that contains optional context and application specific information

Returns:

the info. Returns a new array each time this method is called.

getOkmLength

public long getOkmLength()

Returns the length of output Key Material

Returns:

the length of output Key Material.