dataio.h File Reference

header for dataio.c More...

#include "lib/rsa.h"
#include "lib/sign.h"

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Data Structures
struct	cellKey
struct	cellProtected

Macros
#define	BLOCK_STORAGE_DIR   "../data/"
#define	BLOCKCHAIN_DIR   BLOCK_STORAGE_DIR "blockchain/"
#define	PENDING_BLOCK_FILE   BLOCK_STORAGE_DIR "pending_block"
#define	PENDING_VOTES_FILE   BLOCK_STORAGE_DIR "pending_votes.txt"

Typedefs
typedef struct cellKey	CellKey
typedef struct cellProtected	CellProtected

Functions
CellProtected *	create_cell_protected (Protected *pr)
	Create a cell protected object. More...
void	prepend_protected (CellProtected **list, Protected *pr)
	Prepend CellProtected to a list !!! takes ownership of pr. More...
CellProtected *	read_protected (const char *filename)
	read protected list from file. data format is lines in protected_to_str format each representing a protected More...
void	print_protected_list (CellProtected *list)
	prints the chained list of protected More...
CellProtected *	copy_protected_list (const CellProtected *o)
	copies the list of protected values. The copies order is inverted. More...
char *	list_protected_to_str (const CellProtected *list)
	converts list of protected to a string. More...
CellProtected *	str_to_list_protected (const char *str)
	converts string to a list of protected More...
void	free_cell_protected (CellProtected *c)
	correspond au delete_cell_protected dans le sujet More...
void	free_list_protected (CellProtected *c)
	frees the list of pretected More...
void	remove_fraudulent_declarations (CellProtected **list)
	removes fraudulent block from the chain. Fraudulent blocks are the ones that don't verify the signature. More...
void	generate_random_data (int nv, int nc, const char *dir)
	generates nv public and private keys and prints them in ./{dir}/keys.txt. Chooses nc couple of keys among them and print them in ./{dir}/candidates.txt. Then for all nv public keys, assign a random public key from the previous nc couples converted using key_to_str(), and its signed version using sign(). Prints the results in ./{dir}/declarations.txt. More...
CellKey *	create_cell_key (Key *key)
	Allocate and initialize a CellKey object. More...
CellKey *	insert_cell_key (CellKey *cellkey, Key *key)
	Insert a new element to cellkey (head insertion). More...
CellKey *	read_public_keys (char *file)
	Read the public keys of a file, return them in a CellKey structure. More...
void	print_list_keys (CellKey *LCK)
	print the keys from a list More...
void	free_cell_keys (CellKey *c)
	free a CellKey object(correspond to delete_cell_key in the subject). More...
void	free_list_keys (CellKey *cellkey)
	free a list of keys More...
CellProtected *	rand_list_protected (size_t len)
	generate random list of protected More...
CellProtected *	rand_list_protected_range (size_t len, char low, char hi)
	generate random list of protected with message characters in range [low, hi]. More...
CellProtected *	fuse_protected_lists (CellProtected *A, CellProtected *B)
	fusionner les liste A et B. Modifies A! More...
void	delete_dir_files (const char *path)
void	create_dir_structure ()

Detailed Description

header for dataio.c

Typedef Documentation

CellKey

typedef struct cellKey CellKey

Structure for Key storing.

CellProtected

typedef struct cellProtected CellProtected

Strucutre for Protected (declarations) storing.

Function Documentation

copy_protected_list()

CellProtected * copy_protected_list

(

const CellProtected *

o

)

copies the list of protected values. The copies order is inverted.

Parameters

o

Returns

CellProtected*

create_cell_key()

CellKey * create_cell_key

(

Key *

key

)

Allocate and initialize a CellKey object.

Parameters

key	key to assign

Returns

CellKey*

create_cell_protected()

CellProtected * create_cell_protected

(

Protected *

pr

)

Create a cell protected object.

Parameters

pr

Returns

CellProtected*

free_cell_keys()

void free_cell_keys

(

CellKey *

c

)

free a CellKey object(correspond to delete_cell_key in the subject).

Parameters

c	Cellkey object to delete

free_cell_protected()

void free_cell_protected

(

CellProtected *

c

)

correspond au delete_cell_protected dans le sujet

Parameters

c

free_list_keys()

void free_list_keys

(

CellKey *

cellkey

)

free a list of keys

Parameters

cellkey

free_list_protected()

void free_list_protected

(

CellProtected *

c

)

frees the list of pretected

Parameters

c

fuse_protected_lists()

CellProtected * fuse_protected_lists	(	CellProtected *	A,
		CellProtected *	B
	)

fusionner les liste A et B. Modifies A!

Parameters

A
B

generate_random_data()

void generate_random_data	(	int	nv,
		int	nc,
		const char *	dir
	)

generates nv public and private keys and prints them in ./{dir}/keys.txt. Chooses nc couple of keys among them and print them in ./{dir}/candidates.txt. Then for all nv public keys, assign a random public key from the previous nc couples converted using key_to_str(), and its signed version using sign(). Prints the results in ./{dir}/declarations.txt.

Parameters

nv	number of couple of keys(citizen) to be generated
nc	number of candidates among the nv couples

insert_cell_key()

CellKey * insert_cell_key	(	CellKey *	cellkey,
		Key *	key
	)

Insert a new element to cellkey (head insertion).

Parameters

cellkey	list of key
key	key to insert

Returns

CellKey*

list_protected_to_str()

char * list_protected_to_str

(

const CellProtected *

list

)

converts list of protected to a string.

Parameters

list

Returns

char*

prepend_protected()

void prepend_protected	(	CellProtected **	list,
		Protected *	pr
	)

Prepend CellProtected to a list !!! takes ownership of pr.

Parameters

list
pr

print_list_keys()

void print_list_keys

(

CellKey *

LCK

)

print the keys from a list

Parameters

LCK	list of keys

print_protected_list()

void print_protected_list

(

CellProtected *

list

)

prints the chained list of protected

Parameters

list

rand_list_protected()

CellProtected * rand_list_protected

(

size_t

len

)

generate random list of protected

Parameters

len

Returns

CellProtected*

rand_list_protected_range()

CellProtected * rand_list_protected_range	(	size_t	len,
		char	low,
		char	hi
	)

generate random list of protected with message characters in range [low, hi].

Parameters

len
low
hi

Returns

CellProtected*

read_protected()

CellProtected * read_protected

(

const char *

filename

)

read protected list from file. data format is lines in protected_to_str format each representing a protected

Parameters

filename

Returns

CellProtected*

read_public_keys()

CellKey * read_public_keys

(

char *

file

)

Read the public keys of a file, return them in a CellKey structure.

Parameters

file	path to the file

Returns

CellKey*

remove_fraudulent_declarations()

void remove_fraudulent_declarations

(

CellProtected **

list

)

removes fraudulent block from the chain. Fraudulent blocks are the ones that don't verify the signature.

Parameters

list

str_to_list_protected()

CellProtected * str_to_list_protected

(

const char *

str

)

converts string to a list of protected

Parameters

str

Returns

CellProtected*