ioc.h File Reference

#include "crack.h"

Go to the source code of this file.

Macros
#define	ENIGMA_IOC_ENGLISH   (1.73 / 26)
	English language Index of Coincidence.
#define	ENIGMA_IOC_ENGLISH_MIN   (ENIGMA_IOC_ENGLISH - 0.25)
	English language IoC default variance threshold.
#define	ENIGMA_IOC_ENGLISH_MAX   (ENIGMA_IOC_ENGLISH + 0.25)
	English language IoC default variance threshold.
#define	ENIGMA_IOC_GERMAN   (2.05 / 26)
	German language Index of Coincidence.
#define	ENIGMA_IOC_GERMAN_MIN   (ENIGMA_IOC_GERMAN - 0.25)
	German language IoC default variance threshold.
#define	ENIGMA_IOC_GERMAN_MAX   (ENIGMA_IOC_GERMAN + 0.25)
	German language IoC default variance threshold.

Functions
float	enigma_ioc_score (const EnigmaCrackParams *, const char *)
	Score text using Index of Coincidence.

Detailed Description

This file declares functions for cracking Enigma configurations using the Index of Coincidence method.

Macro Definition Documentation

ENIGMA_IOC_ENGLISH

#define ENIGMA_IOC_ENGLISH   (1.73 / 26)

English language Index of Coincidence.

ENIGMA_IOC_ENGLISH_MAX

#define ENIGMA_IOC_ENGLISH_MAX   (ENIGMA_IOC_ENGLISH + 0.25)

English language IoC default variance threshold.

ENIGMA_IOC_ENGLISH_MIN

#define ENIGMA_IOC_ENGLISH_MIN   (ENIGMA_IOC_ENGLISH - 0.25)

English language IoC default variance threshold.

ENIGMA_IOC_GERMAN

#define ENIGMA_IOC_GERMAN   (2.05 / 26)

German language Index of Coincidence.

ENIGMA_IOC_GERMAN_MAX

#define ENIGMA_IOC_GERMAN_MAX   (ENIGMA_IOC_GERMAN + 0.25)

German language IoC default variance threshold.

ENIGMA_IOC_GERMAN_MIN

#define ENIGMA_IOC_GERMAN_MIN   (ENIGMA_IOC_GERMAN - 0.25)

German language IoC default variance threshold.

Function Documentation

enigma_ioc_score()

float enigma_ioc_score	(	const EnigmaCrackParams *	cfg,
		const char *	text
	)

Score text using Index of Coincidence.

This function calculates the Index of Coincidence for the given text and returns

Parameters

cfg	Pointer to the cracking configuration structure.
text	The text to score.