dicho.c File Reference

#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <math.h>
#include "buff.h"
#include "arith.h"
#include "precomp.h"

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Data Structures
struct	elt
Typedefs
typedef struct elt *	liste_t
Functions
double	round (double)
int	l2 (unsigned long x)
liste_t	liste_alloc (liste_t s)
void	liste_free (liste_t l)
int	is_leaf (int m, int t)
unsigned long	bino (int a, int b)
unsigned long	cw_coder (int *res, int t)
int	inv_bino (unsigned long x, int t)
void	cw_decoder (unsigned long x, int t, int *res)
int	dicho_rec (int *cw, int i, int s, arith_t state, precomp_t p)
int	dicho (int *cw, arith_t state, precomp_t p)
int	dichoinv_rec (int *cw, int i, int s, int x, arith_t state, precomp_t p)
int	dichoinv (int *cw, arith_t state, precomp_t p)
int	dicho_b2cw (unsigned char *input_message, int *cw, int start, int len, int m, int t, precomp_t p)
int	dicho_cw2b (int *cw, unsigned char *output_message, int start, int len, int m, int t, precomp_t p)
Variables
liste_t	liste_todo
liste_t	liste_inv
int *	aux
int	max_bino [] = {0, 0, 0, 0, 0, 128, 64, 64, 32, 32, 32, 32, 32, 32, 32, 32, 32}
unsigned long *	table_bino []

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Typedef Documentation

typedef struct elt * liste_t

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Function Documentation

unsigned long bino	(	int	a,
		int	b
	)

Definition at line 164 of file dicho.c.

References table_bino.

unsigned long cw_coder	(	int *	res,
		int	t
	)

Definition at line 168 of file dicho.c.

References table_bino.

Referenced by dicho_rec().

void cw_decoder	(	unsigned long	x,
		int	t,
		int *	res
	)

Definition at line 229 of file dicho.c.

References inv_bino(), round(), and table_bino.

Referenced by dichoinv().

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int dicho	(	int *	cw,
		arith_t	state,
		precomp_t	p
	)

Definition at line 347 of file dicho.c.

References aux, code_arith::buffer, bwrite(), bwrite_bit(), bwrite_bits(), bwrite_changer_position(), bwrite_decaler_fin(), bwrite_unlocked(), coder_uniforme(), code_arith::compteur, dicho_rec(), buff::fin, liste_free(), precomp::m, elt::maximum, code_arith::min, elt::nombre, PREC_PROBA, elt::suivant, precomp::t, elt::taille, and elt::valeur.

Referenced by dicho_cw2b().

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int dicho_b2cw	(	unsigned char *	input_message,
		int *	cw,
		int	start,
		int	len,
		int	m,
		int	t,
		precomp_t	p
	)

Definition at line 628 of file dicho.c.

References arith_init(), bread(), bread_changer_position(), breadclose(), breadinit(), code_arith::buffer, dichoinv(), precomp::m, precomp::real_m, precomp::real_t, and precomp::t.

Referenced by encrypt_block().

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int dicho_cw2b	(	int *	cw,
		unsigned char *	output_message,
		int	start,
		int	len,
		int	m,
		int	t,
		precomp_t	p
	)

Definition at line 722 of file dicho.c.

References arith_init(), code_arith::buffer, bwrite(), bwrite_changer_position(), bwriteclose(), bwriteinit(), dicho(), precomp::m, precomp::real_m, precomp::real_t, and precomp::t.

Referenced by decrypt_block().

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int dicho_rec	(	int *	cw,
		int	i,
		int	s,
		arith_t	state,
		precomp_t	p
	)

Definition at line 286 of file dicho.c.

References aux, coder(), cw_coder(), leaf_info_t::deadbits, is_leaf(), precomp::leaf_info, liste_alloc(), leaf_info_t::maximum, elt::maximum, elt::nombre, precomp_get_distrib, elt::taille, and elt::valeur.

Referenced by dicho().

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int dichoinv	(	int *	cw,
		arith_t	state,
		precomp_t	p
	)

Definition at line 489 of file dicho.c.

References bread(), bread_changer_position(), bread_decaler_fin(), bread_unlocked(), code_arith::buffer, cw_decoder(), decoder_uniforme(), dichoinv_rec(), elt::element, buff::fin, liste_free(), precomp::m, elt::maximum, elt::nombre, elt::pos, PREC_PROBA, elt::suivant, precomp::t, elt::taille, and elt::valeur.

Referenced by dicho_b2cw().

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int dichoinv_rec	(	int *	cw,
		int	i,
		int	s,
		int	x,
		arith_t	state,
		precomp_t	p
	)

Definition at line 442 of file dicho.c.

References leaf_info_t::deadbits, decoder(), elt::element, is_leaf(), precomp::leaf_info, liste_alloc(), leaf_info_t::maximum, elt::maximum, elt::nombre, elt::pos, precomp_get_distrib, elt::taille, and elt::valeur.

Referenced by dichoinv().

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int inv_bino	(	unsigned long	x,
		int	t
	)

Definition at line 207 of file dicho.c.

References max_bino, and table_bino.

Referenced by cw_decoder().

int is_leaf	(	int	m,
		int	t
	)

Definition at line 56 of file dicho.c.

Referenced by clear_precomp(), dicho_build_tree(), dicho_rec(), dicho_si_lb_rec(), dicho_si_rec(), dichoinv_rec(), precomp_build(), and write_precomp().

int l2

(

unsigned long

x

)

Definition at line 25 of file arith.c.

Referenced by adjust_delta(), ajuster(), and leaf_info().

liste_t liste_alloc

(

liste_t

s

)

Definition at line 44 of file dicho.c.

References elt::suivant.

Referenced by dicho_rec(), and dichoinv_rec().

void liste_free

(

liste_t

l

)

Definition at line 50 of file dicho.c.

References elt::suivant.

Referenced by dicho(), and dichoinv().

double round

(

double

)

Referenced by cw_decoder(), and init_proba().

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Variable Documentation

int* aux

Definition at line 42 of file dicho.c.

Referenced by decode(), dicho(), dicho_rec(), memory_compl(), poly_eeaux(), and poly_sqrtmod_init().

liste_t liste_inv

Definition at line 41 of file dicho.c.

liste_t liste_todo

Definition at line 40 of file dicho.c.

int max_bino[] = {0, 0, 0, 0, 0, 128, 64, 64, 32, 32, 32, 32, 32, 32, 32, 32, 32}

Definition at line 68 of file dicho.c.

Referenced by inv_bino().

unsigned long* table_bino[]

Definition at line 69 of file dicho.c.

Referenced by bino(), cw_coder(), cw_decoder(), and inv_bino().