iaik.cms
Interface ByteArrayCipherEngine

All Superinterfaces:

CipherEngine

All Known Subinterfaces:

ByteArrayAuthCipherEngine

public interface ByteArrayCipherEngine
extends CipherEngine

Generic Cipher engine for encrypting/decrypting data that is supplied by a byte array. Used by class EncryptedContentInfo for content en/decryption. Setups a cipher utility for encryption/decryption depending on the requested mode and en/deciphers the data that is supplied to method cipher.

Allows the implementation of en/deciphering utilities that may be independent from the JCE javax.crypto.Cipher engine. The default implementation, however, is based on the javax.crypto.Cipher engine.

An application that implements its own ByteArrayCipherEngine has to obverride the following SecurityProvider methods to plug-in its own implementation:

• getByteArrayCipherEngine(AlgorithmID algorithm, int mode, Key key, AlgorithmParameters params)
• getByteArrayCipherEngine(AlgorithmID algorithm, int mode, Key key, AlgorithmParameterSpec params)

See Also:

SecurityProvider

Field Summary

Fields inherited from interface iaik.cms.CipherEngine

CIPHER_DECRYPT, CIPHER_ENCRYPT, CIPHER_NONE, CIPHER_UNWRAP, CIPHER_WRAP

Method Summary

byte[]

cipher(byte[] data) En/deciphers the data supplied by the given byte array.

Methods inherited from interface iaik.cms.CipherEngine

getParameters, initCipher, initCipher, setSecurityProvider

Method Detail

cipher

byte[] cipher(byte[] data)
              throws CMSCryptoException

En/deciphers the data supplied by the given byte array.

Parameters:

data - the data to be en/deciphered

Throws:

CMSCryptoException - if the cipher operation fails for some reason (e.g. because of an padding error)