Overview  Package   Class  Use  Deprecated  Index
Home >> All >> cryptix >> jce >> provider >> [ cipher overview ]	PREV CLASS  NEXT CLASS
SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

---

cryptix.jce.provider.cipher
Class Rijndael  

java.lang.Object
  javax.crypto.CipherSpi
      cryptix.jce.provider.cipher.BlockCipher
          cryptix.jce.provider.cipher.Rijndael

---

public final class Rijndael

extends BlockCipher

Rijndael --pronounced Reindaal-- is a symmetric cipher with a 128-bit block size and variable key-size (128-, 192- and 256-bit).

Rijndael was designed by Vincent Rijmen and Joan Daemen.

Version:

$Revision: 1.8 $

---

Field Summary
private static int	BLOCK_SIZE
private  boolean	decrypt           True if in decrypt mode
private  int[]	K           Subkeys
private  int	limit           (ROUNDS-1) * 4
private static byte[]	rcon
private  boolean	ROUNDS_12
private  boolean	ROUNDS_14
private static byte[]	S
private static byte[]	Si
private static java.lang.String	SS
private static int[]	T1
private static int[]	T2
private static int[]	T3
private static int[]	T4
private static int[]	T5
private static int[]	T6
private static int[]	T7
private static int[]	T8
private static int[]	U1
private static int[]	U2
private static int[]	U3
private static int[]	U4

 

Fields inherited from class cryptix.jce.provider.cipher.BlockCipher

 

Constructor Summary

Rijndael()

 

Method Summary
private  void	blockDecrypt(byte[] in, int inOffset, byte[] out, int outOffset)           Decrypt exactly one block of plaintext.
private  void	blockEncrypt(byte[] in, int inOffset, byte[] out, int outOffset)           Encrypt exactly one block of plaintext.
protected  void	coreCrypt(byte[] in, int inOffset, byte[] out, int outOffset)           Encrypt a given buffer.
protected  void	coreInit(java.security.Key key, boolean decrypt)
private static int	getRounds(int keySize)           Return The number of rounds for a given Rijndael keysize.
private static void	invertKey(int[] K)
private static int[]	makeKey(byte[] keyBytes, boolean decrypt)           Expand a user-supplied key material into a session key.

 

Methods inherited from class cryptix.jce.provider.cipher.BlockCipher

clone, coreGetBlockSize, engineDoFinal, engineDoFinal, engineGetBlockSize, engineGetIV, engineGetKeySize, engineGetOutputSize, engineGetParameters, engineInit, engineInit, engineInit, engineSetMode, engineSetPadding, engineUpdate, engineUpdate

 

Methods inherited from class javax.crypto.CipherSpi

engineDoFinal, engineUnwrap, engineUpdate, engineWrap

 

Methods inherited from class java.lang.Object

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

 

Field Detail

ROUNDS_12

private boolean ROUNDS_12

---

ROUNDS_14

private boolean ROUNDS_14

---

decrypt

private boolean decrypt

True if in decrypt mode

---

K

private int[] K

Subkeys

---

limit

private int limit

(ROUNDS-1) * 4

---

BLOCK_SIZE

private static final int BLOCK_SIZE

See Also:

Constant Field Values

---

SS

private static final java.lang.String SS

See Also:

Constant Field Values

---

S

private static final byte[] S

---

Si

private static final byte[] Si

---

T1

private static final int[] T1

---

T2

private static final int[] T2

---

T3

private static final int[] T3

---

T4

private static final int[] T4

---

T5

private static final int[] T5

---

T6

private static final int[] T6

---

T7

private static final int[] T7

---

T8

private static final int[] T8

---

U1

private static final int[] U1

---

U2

private static final int[] U2

---

U3

private static final int[] U3

---

U4

private static final int[] U4

---

rcon

private static final byte[] rcon

Constructor Detail

Rijndael

public Rijndael()

Method Detail

coreInit

protected void coreInit(java.security.Key key,
                        boolean decrypt)
                 throws java.security.InvalidKeyException

Specified by:

coreInit in class BlockCipher

---

coreCrypt

protected void coreCrypt(byte[] in,
                         int inOffset,
                         byte[] out,
                         int outOffset)

Description copied from class: BlockCipher

Encrypt a given buffer. in and out can point to the same buffer if (outOffset == inOffset) || (outOffset >= (inOffset+coreGetBlockSize)) That is: the buffers may not partially overlap...

Specified by:

coreCrypt in class BlockCipher

---

blockEncrypt

private void blockEncrypt(byte[] in,
                          int inOffset,
                          byte[] out,
                          int outOffset)

Encrypt exactly one block of plaintext.

---

blockDecrypt

private void blockDecrypt(byte[] in,
                          int inOffset,
                          byte[] out,
                          int outOffset)

Decrypt exactly one block of plaintext.

---

makeKey

private static int[] makeKey(byte[] keyBytes,
                             boolean decrypt)
                      throws java.security.InvalidKeyException

Expand a user-supplied key material into a session key.

---

invertKey

private static void invertKey(int[] K)

---

getRounds

private static int getRounds(int keySize)

Return The number of rounds for a given Rijndael keysize.

---

Overview  Package   Class  Use  Deprecated  Index
Home >> All >> cryptix >> jce >> provider >> [ cipher overview ]	PREV CLASS  NEXT CLASS
SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

---