anon.client.crypto
Class SymCipher

java.lang.Object
  anon.client.crypto.SymCipher

public class SymCipher
extends java.lang.Object

Field Summary

(package private) org.bouncycastle.crypto.engines.AESFastEngine	m_aesEngine1
(package private) org.bouncycastle.crypto.engines.AESFastEngine	m_aesEngine2
(package private) byte[]	m_aesKeys
(package private) byte[]	m_iv1
(package private) byte[]	m_iv2

Constructor Summary

SymCipher()

Method Summary

int	encryptAES1(byte[] from, int ifrom, byte[] to, int ito, int len)
int	encryptAES2(byte[] buff)
byte[]	getKeys() Returns the currently used key(s) for encryption.
int	setEncryptionKeyAES(byte[] key)
int	setEncryptionKeyAES(byte[] key, int offset, int len)
int	setEncryptionKeysAES(byte[] keys) Set both keys to different value, if keys.length==2* KEY_SIZe, else set both keys to the same value
void	setIV2(byte[] buff)

Methods inherited from class java.lang.Object

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

Field Detail

m_aesEngine1

org.bouncycastle.crypto.engines.AESFastEngine m_aesEngine1

m_aesEngine2

org.bouncycastle.crypto.engines.AESFastEngine m_aesEngine2

m_iv1

byte[] m_iv1

m_iv2

byte[] m_iv2

m_aesKeys

byte[] m_aesKeys

Constructor Detail

SymCipher

public SymCipher()

Method Detail

setEncryptionKeyAES

public int setEncryptionKeyAES(byte[] key)

setEncryptionKeyAES

public int setEncryptionKeyAES(byte[] key,
                               int offset,
                               int len)

Parameters:

key - byte[]

offset - int

len - int if len==16 --> only the key is set; if len==32 --> key and IV is set

Returns:

int

setEncryptionKeysAES

public int setEncryptionKeysAES(byte[] keys)

Set both keys to different value, if keys.length==2* KEY_SIZe, else set both keys to the same value

Parameters:

keys - byte[]

Returns:

int

getKeys

public byte[] getKeys()

Returns the currently used key(s) for encryption. If both keys are set, than an array of 32 byte is returned, otherwise an array of 16 bytes

Returns:

The current key(s) used for encryption or null, if no key is set.

setIV2

public void setIV2(byte[] buff)

encryptAES1

public int encryptAES1(byte[] from,
                       int ifrom,
                       byte[] to,
                       int ito,
                       int len)

encryptAES2

public int encryptAES2(byte[] buff)