Module org.sejda.sambox

Package org.sejda.sambox.encryption

Class Algorithm8

java.lang.Object

org.sejda.sambox.encryption.Algorithm8

All Implemented Interfaces:

PasswordAlgorithm

class Algorithm8
extends Object
implements PasswordAlgorithm

Algorithm 8 as defined in Chap 7.6.3.4.6 of ISO 32000-2

Field Summary

Fields

Modifier and Type	Field	Description
private final AESEngineNoPadding	engine
private final Algorithm2AHash	hashAlgo
private final byte[]	userKeySalt
private final byte[]	userValidationSalt

Constructor Summary

Constructors

Constructor	Description
Algorithm8(Algorithm2AHash hashAlgo)
Algorithm8(Algorithm2AHash hashAlgo, byte[] userValidationSalt, byte[] userKeySalt)

Method Summary

Modifier and Type	Method	Description
byte[]	computePassword(EncryptionContext context)
byte[]	computeUE(EncryptionContext context)

Methods inherited from class java.lang.Object

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

Field Details

userValidationSalt

private final byte[] userValidationSalt

userKeySalt

private final byte[] userKeySalt

hashAlgo

private final Algorithm2AHash hashAlgo

engine

private final AESEngineNoPadding engine

Constructor Details

Algorithm8

Algorithm8(Algorithm2AHash hashAlgo)

Algorithm8

Algorithm8(Algorithm2AHash hashAlgo,
 byte[] userValidationSalt,
 byte[] userKeySalt)

Method Details

computePassword

public byte[] computePassword(EncryptionContext context)

Specified by:

computePassword in interface PasswordAlgorithm

Returns:

the computed password based on the given input security params

computeUE

public byte[] computeUE(EncryptionContext context)