au.net.aba.crypto.provider
Class DES
java.lang.Object
|
+--javax.crypto.CipherSpi
|
+--au.net.aba.crypto.provider.BlockCipher
|
+--au.net.aba.crypto.provider.DES
- Direct Known Subclasses:
- DESede
- public class DES
- extends BlockCipher
A class that provides DES encryption.
Field Summary |
static java.lang.String |
ident
|
protected int[] |
Kn1
|
protected int[] |
work
|
Fields inherited from class au.net.aba.crypto.provider.BlockCipher |
BLOCK_SIZE,
buffer,
bufferPos,
CBC,
cbcV,
ECB,
firstBlock,
ident,
ivec,
ivEncrypted,
ivInline,
key,
mode,
paddedStream,
random,
streamMode |
Constructor Summary |
DES()
|
Method Summary |
protected int |
decryptBlock(byte[] in,
int inOff,
int len,
byte[] out,
int outOff)
|
protected void |
desfunc(int[] block,
int[] keys)
the DES engine. |
protected int |
encryptBlock(byte[] in,
int inOff,
int len,
byte[] out,
int outOff)
|
protected void |
prepareKeys(int opMode,
byte[] key,
int[] keys)
prepare the key for whatever processing we are planing. |
protected void |
scrunch(byte[] outof,
int offset,
int[] into)
pack 8 bytes from outof into 2 ints. |
protected void |
setKey(java.security.Key key)
|
protected void |
unscrunch(int[] outof,
byte[] into,
int offset)
extract 8 bytes from the 2 ints in outof. |
Methods inherited from class au.net.aba.crypto.provider.BlockCipher |
engineDoFinal,
engineDoFinal,
engineGetBlockSize,
engineGetIV,
engineGetOutputSize,
engineGetParameters,
engineInit,
engineInit,
engineInit,
engineSetMode,
engineSetPadding,
engineUpdate,
engineUpdate,
reset |
Methods inherited from class java.lang.Object |
clone,
equals,
finalize,
getClass,
hashCode,
notify,
notifyAll,
toString,
wait,
wait,
wait |
ident
public static final java.lang.String ident
work
protected int[] work
Kn1
protected int[] Kn1
DES
public DES()
setKey
protected void setKey(java.security.Key key)
throws java.security.InvalidKeyException
- Overrides:
- setKey in class BlockCipher
encryptBlock
protected int encryptBlock(byte[] in,
int inOff,
int len,
byte[] out,
int outOff)
throws IllegalBlockSizeException
- Overrides:
- encryptBlock in class BlockCipher
decryptBlock
protected int decryptBlock(byte[] in,
int inOff,
int len,
byte[] out,
int outOff)
throws BadPaddingException
- Overrides:
- decryptBlock in class BlockCipher
prepareKeys
protected void prepareKeys(int opMode,
byte[] key,
int[] keys)
- prepare the key for whatever processing we are planing.
Acknowledgements for this routine go to James Gillogly & Phil Karn.
(whoever, and wherever they are!).
scrunch
protected void scrunch(byte[] outof,
int offset,
int[] into)
- pack 8 bytes from outof into 2 ints.
unscrunch
protected void unscrunch(int[] outof,
byte[] into,
int offset)
- extract 8 bytes from the 2 ints in outof.
desfunc
protected void desfunc(int[] block,
int[] keys)
- the DES engine.