crack.h

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#ifndef ENIGMA_CRACK_H
#define ENIGMA_CRACK_H
 
#include "common.h"
#include "enigma.h"
#include "score.h"
 
#include <stddef.h>
 
#ifndef ENIGMA_FLAG_X_SEPARATED
#define ENIGMA_FLAG_X_SEPARATED 16
#endif
 
#ifndef ENIGMA_DICTIONARY_EXISTS
#define ENIGMA_DICTIONARY_EXISTS 1
#endif
 
#ifndef ENIGMA_N_GRAMS_EXIST
#define ENIGMA_N_GRAMS_EXIST 2
#endif
 
#ifndef ENIGMA_IOC_FREQS_EXIST
#define ENIGMA_IOC_FREQS_EXIST 4
#endif
 
#ifndef ENIGMA_CIPHERTEXT_EXISTS
#define ENIGMA_CIPHERTEXT_EXISTS 8
#endif
 
#ifndef ENIGMA_SCORE_BOUNDS_EXIST
#define ENIGMA_SCORE_BOUNDS_EXIST 16
#endif
 
#ifndef ENIGMA_ROTORS_DEFINED
#define ENIGMA_ROTORS_DEFINED 32
#endif
 
#ifndef ENIGMA_ROTOR_POSITIONS_DEFINED
#define ENIGMA_ROTOR_POSITIONS_DEFINED 64
#endif
 
#ifndef ENIGMA_REFLECTOR_DEFINED
#define ENIGMA_REFLECTOR_DEFINED 128
#endif
 
#ifndef ENIGMA_PLUGBOARD_DEFINED
#define ENIGMA_PLUGBOARD_DEFINED 256
#endif
 
typedef struct EnigmaTrie_s {
    char                 value; 
    struct EnigmaTrie_s* children
        [ENIGMA_ALPHA_SIZE]; 
} EnigmaTrie;
 
typedef struct {
    Enigma           enigma; 
    EnigmaScoreList* score_list; 
    EnigmaTrie*      dictionary; 
    float*           ngrams; 
    int              n; 
    size_t           ngrams_length; 
    const char*      ciphertext; 
    size_t           ciphertext_length; 
    int              flags; 
    float            frequency_targets[26]; 
    float            min_score; 
    float            max_score; 
    float            target_score; 
    float target_frequency; 
    float
        frequency_offset; 
    const char*
        known_plaintext; 
    int known_plaintext_length; 
} EnigmaCrackParams;
 
EnigmaCrackParams* enigma_crack_params_new(void);
int                enigma_crack_params_validate(const EnigmaCrackParams*);
int   enigma_crack_rotor(EnigmaCrackParams*, int, float (*)(const EnigmaCrackParams*, const char*));
int   enigma_crack_rotors(EnigmaCrackParams*, float (*)(const EnigmaCrackParams*, const char*));
int   enigma_crack_rotor_position(EnigmaCrackParams*,
                                  int,
                                  float (*scoreFunc)(const EnigmaCrackParams*, const char*));
int   enigma_crack_rotor_positions(EnigmaCrackParams*,
                                   float (*)(const EnigmaCrackParams*, const char*));
int   enigma_crack_reflector(EnigmaCrackParams*, float (*)(const EnigmaCrackParams*, const char*));
int   enigma_crack_plugboard(EnigmaCrackParams*, float (*)(const EnigmaCrackParams*, const char*));
int   enigma_dict_match(const EnigmaCrackParams*, const char*);
int   enigma_find_potential_indices(const char*, const char*, int*);
int   enigma_free_dict(EnigmaCrackParams*);
float enigma_freq(const char*, int);
int   enigma_letter_freq(const EnigmaCrackParams*, const char*);
int   enigma_score_append(EnigmaCrackParams*, Enigma*, const char*, float);
int   enigma_score_flags(const EnigmaCrackParams*, const char*);
 
/* --- EnigmaCrackParams getters and setters --- */
const Enigma*          enigma_crack_get_enigma(const EnigmaCrackParams*);
const EnigmaScoreList* enigma_crack_get_score_list(const EnigmaCrackParams*);
EnigmaTrie*            enigma_crack_get_dictionary(const EnigmaCrackParams*);
const float*           enigma_crack_get_ngrams(const EnigmaCrackParams*);
int                    enigma_crack_get_n(const EnigmaCrackParams*);
size_t                 enigma_crack_get_ngrams_length(const EnigmaCrackParams*);
const char*            enigma_crack_get_ciphertext(const EnigmaCrackParams*);
size_t                 enigma_crack_get_ciphertext_length(const EnigmaCrackParams*);
int                    enigma_crack_get_flags(const EnigmaCrackParams*);
const float*           enigma_crack_get_frequency_targets(const EnigmaCrackParams*);
float                  enigma_crack_get_min_score(const EnigmaCrackParams*);
float                  enigma_crack_get_max_score(const EnigmaCrackParams*);
float                  enigma_crack_get_target_score(const EnigmaCrackParams*);
const char*            enigma_crack_get_known_plaintext(const EnigmaCrackParams*);
size_t                 enigma_crack_get_known_plaintext_length(const EnigmaCrackParams*);
int                    enigma_crack_set_enigma(EnigmaCrackParams*, Enigma*);
int                    enigma_crack_set_score_list(EnigmaCrackParams*, EnigmaScoreList*);
int                    enigma_crack_set_dictionary(EnigmaCrackParams*, EnigmaTrie*);
int                    enigma_crack_set_ngrams(EnigmaCrackParams*, float*, int, size_t);
int                    enigma_crack_set_n(EnigmaCrackParams*, int);
int                    enigma_crack_set_ciphertext(EnigmaCrackParams*, const char*, size_t);
int                    enigma_crack_set_flags(EnigmaCrackParams*, int);
int                    enigma_crack_set_frequency_targets(EnigmaCrackParams*, float*);
int                    enigma_crack_set_min_score(EnigmaCrackParams*, float);
int                    enigma_crack_set_max_score(EnigmaCrackParams*, float);
int                    enigma_crack_set_target_score(EnigmaCrackParams*, float);
int                    enigma_crack_set_known_plaintext(EnigmaCrackParams*, const char*, size_t);
 
#endif