EncryptUtils

java.lang.Object

org.sejda.sambox.encryption.EncryptUtils

final class EncryptUtils extends Object

Utilities for encryption related tasks

Field Summary

Fields

Modifier and Type

Field

Description

static final byte[]

ENCRYPT_PADDING
Constructor Summary

Constructors

Modifier

Constructor

Description

private

EncryptUtils()
Method Summary

Modifier and Type

Method

Description

static byte[]

padOrTruncate(byte[] input)

Performs pad or truncate to a 32 bytes array as specified in Algo2 and Algo3

static byte[]

rnd(int length)

static byte[]

truncate127(byte[] input)

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

Field Details
- ENCRYPT_PADDING
  
  public static final byte[] ENCRYPT_PADDING
Constructor Details
- EncryptUtils
  
  private EncryptUtils()
Method Details
- padOrTruncate
  
  public static byte[] padOrTruncate(byte[] input)
  
  Performs pad or truncate to a 32 bytes array as specified in Algo2 and Algo3
  
  Parameters:
  
  input -
  
  Returns:
- truncate127
  
  public static byte[] truncate127(byte[] input)
  
  Parameters:
  
  input -
  
  Returns:
  
  the input array truncated to a max length of 127
- rnd
  
  public static byte[] rnd(int length)
  
  Parameters:
  
  length -
  
  Returns:
  
  an array of the given length with random byte values