org.bouncycastle.crypto.modes

Class EAXBlockCipher

public class EAXBlockCipher extends Object implements AEADBlockCipher

A Two-Pass Authenticated-Encryption Scheme Optimized for Simplicity and Efficiency - by M. Bellare, P. Rogaway, D. Wagner. http://www.cs.ucdavis.edu/~rogaway/papers/eax.pdf EAX is an AEAD scheme based on CTR and OMAC1/CMAC, that uses a single block cipher to encrypt and authenticate data. It's on-line (the length of a message isn't needed to begin processing it), has good performances, it's simple and provably secure (provided the underlying block cipher is secure). Of course, this implementations is NOT thread-safe.

Constructor Summary
	EAXBlockCipher(BlockCipher cipher) Constructor that accepts an instance of a block cipher engine.

Method Summary
int	doFinal(byte[] out, int outOff)
String	getAlgorithmName()
int	getBlockSize()
byte[]	getMac()
int	getOutputSize(int len)
BlockCipher	getUnderlyingCipher()
int	getUpdateOutputSize(int len)
void	init(boolean forEncryption, CipherParameters params)
int	processByte(byte in, byte[] out, int outOff)
int	processBytes(byte[] in, int inOff, int len, byte[] out, int outOff)
void	reset()

Constructor Detail

EAXBlockCipher

public EAXBlockCipher(BlockCipher cipher)

Constructor that accepts an instance of a block cipher engine.

Parameters: cipher the engine to use