com.fasteasytrade.JRandTest.Algo
Class MT19937

java.lang.Object
  com.fasteasytrade.JRandTest.IO.FileRandomStream
      com.fasteasytrade.JRandTest.IO.FileAlgoRandomStream
          com.fasteasytrade.JRandTest.Algo.MT19937

All Implemented Interfaces:

AlgoRandomStream, RandomStream

public class MT19937

extends FileAlgoRandomStream

Stream of random bytes from MT19937Prng class

Author:

Zur Aougav

Field Summary

(package private) long[]	defaultPublicKey
(package private) MT19937Prng	mt
(package private) byte[]	outAlgoBuffer
(package private) int	outAlgoBufferIx

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

MT19937()

MT19937(String keyFileName)

Method Summary

String	getFilename() get the file name to be processed. this file is the raw data to be read, or the input file processed by algorithm.
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	setFilename(String s) set file name to be processed. this file is the raw data to be read, or the input file processed by algorithm.
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

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

mt

MT19937Prng mt

defaultPublicKey

long[] defaultPublicKey

outAlgoBuffer

byte[] outAlgoBuffer

outAlgoBufferIx

int outAlgoBufferIx

Constructor Detail

MT19937

public MT19937()

MT19937

public MT19937(String keyFileName)

Method Detail

getFilename

public String getFilename()

Description copied from interface: RandomStream

get the file name to be processed. this file is the raw data to be read, or the input file processed by algorithm.

Specified by:

getFilename in interface RandomStream

Overrides:

getFilename in class FileAlgoRandomStream

Returns:

algorithm input filename file

See Also:

RandomStream.getFilename()

setFilename

public void setFilename(String s)

Description copied from interface: RandomStream

set file name to be processed. this file is the raw data to be read, or the input file processed by algorithm.

Specified by:

setFilename in interface RandomStream

Overrides:

setFilename in class FileAlgoRandomStream

Parameters:

s - set algorithm input filename file

See Also:

RandomStream.setFilename(java.lang.String)

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()