totalcross.crypto.cipher
Class AESCipher

totalcross.lang.Object
  totalcross.crypto.cipher.Cipher
      totalcross.crypto.cipher.AESCipher

public class AESCipher
extends Cipher

This class implements the AES cryptographic cipher.

If you get a totalcross.crypto.CryptoException: Illegal key size, you must download the strong cryptography files from here AFTER understanding that you are elligible to do so as stated in here (search for 'Unlimited Strength Java Cryptography Extension' - installation instructions are inside that topic).

Field Summary

Fields inherited from class totalcross.crypto.cipher.Cipher

chaining, CHAINING_CBC, CHAINING_ECB, CHAINING_NONE, iv, key, nativeHeap, operation, OPERATION_DECRYPT, OPERATION_ENCRYPT, padding, PADDING_NONE, PADDING_PKCS1, PADDING_PKCS5

Constructor Summary

AESCipher()

Method Summary

protected void	doReset()
String	getAlgorithm()
int	getBlockLength()
protected boolean	isChainingSupported(int chaining)
protected boolean	isKeySupported(Key key, int operation)
protected boolean	isPaddingSupported(int padding)
protected byte[]	process(byte[] data)

Methods inherited from class totalcross.crypto.cipher.Cipher

getIV, getOutput, reset, reset, reset, reset, toString, update, update, update

Methods inherited from class totalcross.lang.Object

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

Constructor Detail

AESCipher

public AESCipher()

Method Detail

getAlgorithm

public final String getAlgorithm()

Specified by:

getAlgorithm in class Cipher

Returns:

the algorithm name of this cipher.

getBlockLength

public final int getBlockLength()

Specified by:

getBlockLength in class Cipher

Returns:

the block length (in bytes), or 0 if the underlying algorithm is not a block cipher.

doReset

protected final void doReset()
                      throws CryptoException

Specified by:

doReset in class Cipher

Throws:

CryptoException

process

protected final byte[] process(byte[] data)
                        throws CryptoException

Specified by:

process in class Cipher

Throws:

CryptoException

isKeySupported

protected final boolean isKeySupported(Key key,
                                       int operation)

Specified by:

isKeySupported in class Cipher

isChainingSupported

protected final boolean isChainingSupported(int chaining)

Specified by:

isChainingSupported in class Cipher

isPaddingSupported

protected final boolean isPaddingSupported(int padding)

Specified by:

isPaddingSupported in class Cipher