hcrypto.analyzer
Class WordBasedGaPopulation

java.lang.Object
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  +--hcrypto.analyzer.GaPopulation
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        +--hcrypto.analyzer.WordBasedGaPopulation

public class WordBasedGaPopulation

extends GaPopulation

Fields inherited from class hcrypto.analyzer.GaPopulation

ciphertext, cleantext, cross_rate, CROSS_RATE, individual, IS_VERBOSE, MAX_GENERATIONS, maxtrials, mutate_rate, MUTATE_RATE, params, POPULATION_SIZE, size, TWEAK_ON, tweakingOn, verbose

Constructor Summary

WordBasedGaPopulation(java.lang.String text, GaParameters params)
WordBasedGaPopulation() constructor

Method Summary

void	displayBest()
void	displaySummary()
GaIndividual	getFittest(int n)
void	init() This method initializes the analyzer.
void	run() This method implements the abstract run() method inherited from GaPopulation.

Methods inherited from class java.lang.Object

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

Constructor Detail

WordBasedGaPopulation

public WordBasedGaPopulation(java.lang.String text,
                             GaParameters params)

WordBasedGaPopulation() constructor

Parameters:

text - -- the text to be cryptanalyzed

params - -- a collection of parameters to control the run

Method Detail

init

public void init()

This method initializes the analyzer. It sorts the tokens in the cryptogram to give preference to those with the smallest (non empty) pattern sets. It then creates the population, giving each individual an encryption key based on a pairing of a token from the cryptogram and a word from the pattern word dictionary.

Overrides:

init in class GaPopulation

run

public void run()

This method implements the abstract run() method inherited from GaPopulation.

Overrides:

run in class GaPopulation

getFittest

public GaIndividual getFittest(int n)

Overrides:

getFittest in class GaPopulation

displayBest

public void displayBest()

displaySummary

public void displaySummary()