de.intarsys.pdf.crypt
Class StandardCryptHandler

java.lang.Object
  de.intarsys.pdf.crypt.AbstractCryptHandler
      de.intarsys.pdf.crypt.StandardCryptHandler

All Implemented Interfaces:

ICryptHandler

Direct Known Subclasses:

AESCryptHandler, ArcFourCryptHandler

public abstract class StandardCryptHandler
extends AbstractCryptHandler

An abstract superclass for the default implementation of ICryptHandler. The concrete implementations provide the standard RC4 and AES algorithms.

Constructor Summary

StandardCryptHandler()

Method Summary

byte[]	decrypt(COSObjectKey objectKey, byte[] bytes) Decrypt any bytes in the context of COSObject referenced by the provided key.
byte[]	encrypt(COSObjectKey objectKey, byte[] bytes) Encrypt any bytes in the context of COSObject referenced by the provided key.
void	init(byte[] pCryptKey)

Methods inherited from class java.lang.Object

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

Constructor Detail

StandardCryptHandler

public StandardCryptHandler()

Method Detail

decrypt

public byte[] decrypt(COSObjectKey objectKey,
                      byte[] bytes)
               throws COSSecurityException

Description copied from interface: ICryptHandler

Decrypt any bytes in the context of COSObject referenced by the provided key.

Parameters:

objectKey - of the object which provides the context

bytes - to decrypt

Returns:

the decrypted bytes

Throws:

COSSecurityException

init

public void init(byte[] pCryptKey)
          throws COSSecurityException

Throws:

COSSecurityException

encrypt

public byte[] encrypt(COSObjectKey objectKey,
                      byte[] bytes)
               throws COSSecurityException

Description copied from interface: ICryptHandler

Encrypt any bytes in the context of COSObject referenced by the provided key.

Parameters:

objectKey - of the object which provides the context

bytes - to decrypt

Returns:

the encrypted bytes

Throws:

COSSecurityException