Class AESEngine

java.lang.Object

net.lingala.zip4j.crypto.engine.AESEngine

public class AESEngine
extends Object

Core Engine for AES Encryption

Field Summary

Fields

Modifier and Type	Field	Description
private int	C0
private int	C1
private int	C2
private int	C3
private static final int[]	rcon
private int	rounds
private static final byte[]	S
private static final int[]	T0
private int[][]	workingKey

Constructor Summary

Constructors

Constructor	Description
AESEngine(byte[] key)

Method Summary

Modifier and Type	Method	Description
private void	encryptBlock(int[][] KW)
private int[][]	generateWorkingKey(byte[] key)
private void	init(byte[] key)
int	processBlock(byte[] in, byte[] out)
int	processBlock(byte[] in, int inOff, byte[] out, int outOff)
private int	shift(int r, int shift)
private void	stateIn(byte[] bytes, int off)
private void	stateOut(byte[] bytes, int off)
private int	subWord(int x)

Methods inherited from class Object

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

Field Details

rounds

private int rounds

workingKey

private int[][] workingKey

C0

private int C0

C1

private int C1

C2

private int C2

C3

private int C3

S

private static final byte[] S

rcon

private static final int[] rcon

T0

private static final int[] T0

Constructor Details

AESEngine

public AESEngine(byte[] key)
          throws ZipException

Throws:

ZipException

Method Details

init

private void init(byte[] key)
           throws ZipException

Throws:

ZipException

generateWorkingKey

private int[][] generateWorkingKey(byte[] key)
                            throws ZipException

Throws:

ZipException

processBlock

public int processBlock(byte[] in,
 byte[] out)
                 throws ZipException

Throws:

ZipException

processBlock

public int processBlock(byte[] in,
 int inOff,
 byte[] out,
 int outOff)
                 throws ZipException

Throws:

ZipException

stateIn

private void stateIn(byte[] bytes,
 int off)

stateOut

private void stateOut(byte[] bytes,
 int off)

encryptBlock

private void encryptBlock(int[][] KW)

shift

private int shift(int r,
 int shift)

subWord

private int subWord(int x)