org.sejda.sambox.encryption

Class ConcatenatingAESEngine

java.lang.Object

org.sejda.sambox.encryption.ConcatenatingAESEngine

public class ConcatenatingAESEngine
extends Object

AES implementation of a EncryptionAlgorithmEngine that concatenates the results to the initialization vectors as required by Algorithm 1 and 1A. A random IV is created for those methods that don't take one as parameter

Author:

Andrea Vacondio

Method Summary

Modifier and Type	Method and Description
byte[]	encryptBytes(byte[] data, byte[] key)
byte[]	encryptBytes(byte[] data, byte[] key, byte[] iv)
InputStream	encryptStream(InputStream data, byte[] key)
InputStream	encryptStream(InputStream data, byte[] key, byte[] iv)

Methods inherited from class java.lang.Object

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

Method Detail

encryptStream

public InputStream encryptStream(InputStream data,
                                 byte[] key)

Parameters:

data - data to encrypt

Returns:

a stream where encrypted data can be read from

encryptStream

public InputStream encryptStream(InputStream data,
                                 byte[] key,
                                 byte[] iv)

Returns:

a stream encrypted with the given key and initialization vector

encryptBytes

public byte[] encryptBytes(byte[] data,
                           byte[] key)

Parameters:

data - data to encrypt

Returns:

the encrypted data

encryptBytes

public byte[] encryptBytes(byte[] data,
                           byte[] key,
                           byte[] iv)

Returns:

the byte array encrypted with the given key and initialization vector