Algorithm2B

java.lang.Object

org.sejda.sambox.encryption.Algorithm2B

All Implemented Interfaces:: Algorithm2AHash

class Algorithm2B extends Object implements Algorithm2AHash

Algorithm 2B as defined in Chap 7.6.3.3.3 of PDF 32000-2

Field Summary

Fields

Modifier and Type

Field

Description

private final AESEncryptionAlgorithmEngine

aes128

private static final Map<Integer,MessageDigest>

HASHES

private static final BigInteger

THREE

private final byte[]

u
Constructor Summary

Constructors

Constructor

Description

Algorithm2B()

Algorithm2B(byte[] u)
Method Summary

Modifier and Type

Method

Description

byte[]

computeHash(byte[] input, byte[] password)

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details
- THREE
  
  private static final BigInteger THREE
- HASHES
  
  private static final Map<Integer,MessageDigest> HASHES
- aes128
  
  private final AESEncryptionAlgorithmEngine aes128
- u
  
  private final byte[] u
Constructor Details
- Algorithm2B
  
  Algorithm2B(byte[] u)
- Algorithm2B
  
  Algorithm2B()
Method Details
- computeHash
  
  public byte[] computeHash(byte[] input, byte[] password)
  
  Specified by:
  
  computeHash in interface Algorithm2AHash