Java Randomness Test Suite

JRandTest at SourceForge

com.fasteasytrade.JRandTest.Algo
Class TripleDES

java.lang.Object
  extended bycom.fasteasytrade.JRandTest.IO.FileRandomStream
      extended bycom.fasteasytrade.JRandTest.IO.FileAlgoRandomStream
          extended bycom.fasteasytrade.JRandTest.Algo.TripleDES
All Implemented Interfaces:
AlgoRandomStream, RandomStream

public class TripleDES
extends FileAlgoRandomStream

Simple java TrippleDES algorithm as a random stream.

Use JCE DESEDE algorithm.

Author:
Zur Aougav

Field Summary
(package private)  Cipher algo
          actual cipher algorithm
(package private)  byte[] inAlgoBuffer
          encrypt buffer full of 0x00's, only if no file exists
(package private)  byte[] outAlgoBuffer
          ecrypted result, only if no file exists
(package private)  int outAlgoBufferIx
          index in to encrypted result, outAlgoBuffer
 
Fields inherited from class com.fasteasytrade.JRandTest.IO.FileAlgoRandomStream
maxCount, privateKey, privateKeyLength, publicKey, publicKeyLength
 
Fields inherited from class com.fasteasytrade.JRandTest.IO.FileRandomStream
actualSize, buffer, count, countLastRead, filename, open, SIZE
 
Constructor Summary
TripleDES()
           
TripleDES(String keyFileName)
           
 
Method Summary
static void main(String[] args)
           
 boolean openInputStream()
          open the input stream.
 byte readByte()
          read one byte from a file.
 int readInt()
          Processing is similar to readByte.
 long readLong()
          Processing is similar to readByte.
 void setup()
          setup will be implemented by each subclass
 void setupKeys()
          set up length and new arrays to public and private keys will be implemented by each algorithm
 
Methods inherited from class com.fasteasytrade.JRandTest.IO.FileAlgoRandomStream
getFilename, setFilename, setPrivateKey, setPrivateKeyFromFile, setPublicKey, setPublicKeyFromFile
 
Methods inherited from class com.fasteasytrade.JRandTest.IO.FileRandomStream
closeInputStream, finalize, isOpen
 
Methods inherited from class java.lang.Object
clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 
Methods inherited from interface com.fasteasytrade.JRandTest.IO.RandomStream
closeInputStream, isOpen
 

Field Detail

algo

Cipher algo
actual cipher algorithm


inAlgoBuffer

byte[] inAlgoBuffer
encrypt buffer full of 0x00's, only if no file exists


outAlgoBuffer

byte[] outAlgoBuffer
ecrypted result, only if no file exists


outAlgoBufferIx

int outAlgoBufferIx
index in to encrypted result, outAlgoBuffer

Constructor Detail

TripleDES

public TripleDES()

TripleDES

public TripleDES(String keyFileName)
Method Detail

setupKeys

public void setupKeys()
Description copied from interface: AlgoRandomStream
set up length and new arrays to public and private keys

will be implemented by each algorithm

Specified by:
setupKeys in interface AlgoRandomStream
Overrides:
setupKeys in class FileAlgoRandomStream
See Also:
AlgoRandomStream.setupKeys()

setup

public void setup()
Description copied from class: FileAlgoRandomStream
setup will be implemented by each subclass

Specified by:
setup in interface AlgoRandomStream
Overrides:
setup in class FileAlgoRandomStream
See Also:
AlgoRandomStream.setup()

openInputStream

public boolean openInputStream()
                        throws Exception
Description copied from interface: RandomStream
open the input stream.

Specified by:
openInputStream in interface RandomStream
Overrides:
openInputStream in class FileRandomStream
Throws:
Exception
See Also:

if filename exists (not null), we open file and later will encrypt it. Else, algorithm will generate random data (as PRNG).


readByte

public byte readByte()
              throws Exception
Description copied from interface: RandomStream
read one byte from a file.

first time ( if !isOpen() ) open file/stream, and return byte

at end of file close stream and returns -1

Specified by:
readByte in interface RandomStream
Overrides:
readByte in class FileAlgoRandomStream
Throws:
Exception
See Also:
RandomStream.readByte()

readInt

public int readInt()
            throws Exception
Description copied from interface: RandomStream
Processing is similar to readByte.

Specified by:
readInt in interface RandomStream
Overrides:
readInt in class FileAlgoRandomStream
Throws:
Exception
See Also:
RandomStream.readInt()

readLong

public long readLong()
              throws Exception
Description copied from interface: RandomStream
Processing is similar to readByte.

Specified by:
readLong in interface RandomStream
Overrides:
readLong in class FileAlgoRandomStream
Throws:
Exception
See Also:
RandomStream.readLong()

main

public static void main(String[] args)

Java Randomness Test Suite

JRandTest at SourceForge

JRandTest at SourceForge
Copyright © 2005 Zur Aougav. All Rights Reserved.