n_crypto.c File Reference

Vigenere encode decode function. More...

#include "nilorea/n_common.h"
#include "nilorea/n_base64.h"
#include "nilorea/n_crypto.h"
#include "nilorea/n_thread_pool.h"
#include <stdio.h>
#include <string.h>
#include <ctype.h>
#include <sys/sysinfo.h>

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Data Structures
struct	CYPHER_PARAM
	structure of a n_vigenere_cypher_thread param More...

Macros
#define	_GNU_SOURCE
#define	_GNU_SOURCE_WAS_NOT_DEFINED

Functions
N_STR *	n_get_cpu_id ()
	get the CPU id
N_STR *	n_get_current_dir_hd_serial ()
	get the serial of the current running dir hosting disk
N_STR *	n_vigenere_cypher (N_STR *input, N_STR *key, bool encipher, bool in_place)
	encode or decode input using vigenere cypher
void *	n_vigenere_cypher_thread (void *ptr)
	encode or decode threaded func using params from ptr
N_STR *	n_vigenere_decode (N_STR *string, N_STR *key)
	decode input using vigenere cypher and key
int	n_vigenere_decode_file (N_STR *in, N_STR *out, N_STR *key)
	directly vigenere decode a file using key
int	n_vigenere_decode_file_qa (N_STR *in, N_STR *out, N_STR *question, N_STR *answer)
	directly vigenere decode a file using question and answer
N_STR *	n_vigenere_decode_in_place (N_STR *string, N_STR *key)
	decode input using vigenere cypher and key
N_STR *	n_vigenere_decode_qa (N_STR *input_data, N_STR *question, N_STR *answer)
	directly vigenere decode a file using key
N_STR *	n_vigenere_encode (N_STR *string, N_STR *key)
	encode input using vigenere cypher and key
int	n_vigenere_encode_file (N_STR *in, N_STR *out, N_STR *key)
	directly vigenere encode a file using key
int	n_vigenere_encode_file_qa (N_STR *in, N_STR *out, N_STR *question, N_STR *answer)
	directly vigenere encode a file using question and answer
N_STR *	n_vigenere_encode_in_place (N_STR *string, N_STR *key)
	encode string in place using vigenere cypher and key
N_STR *	n_vigenere_encode_qa (N_STR *input_data, N_STR *question, N_STR *answer)
	directly vigenere encode a file using key
N_STR *	n_vigenere_get_answer (N_STR *root_key, N_STR *question)
	get an answer from a root key and a question
N_STR *	n_vigenere_get_question (size_t question_size)
	get a question generated from the current machine hardware (disk&cpu)
N_STR *	n_vigenere_get_rootkey (size_t rootkey_size)
	get a rootkey randomly generated
N_STR *	n_vigenere_quick_decode (N_STR *encoded_data)
	quick decode data
N_STR *	n_vigenere_quick_encode (N_STR *decoded_data)
	quick encode data

Variables
static char *	__internal_root_key = "ENOFGLUCUNZJADRDMCZZSACRBKXAGSLTTFCICPALKHMWWGLVUIFYSLQJIHHXSHOZGRABFNBHGVTOMEBTVIPXZJHHEKIYWNVTWQKERROCTXFGMMLYUJSJFWLFCHQQMMUM"
	static internal root key, just to obfuscate text so we do not care if is is public

Detailed Description

Vigenere encode decode function.

Author

Castagnier Mickael

Version

1.0

Date

10/11/2022

Definition in file n_crypto.c.

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Data Structure Documentation

CYPHER_PARAM

struct CYPHER_PARAM

structure of a n_vigenere_cypher_thread param

Definition at line 217 of file n_crypto.c.

Collaboration diagram for CYPHER_PARAM:

Data Fields
N_STR *	dest	destination
bool	encipher	1 encoding, 0 decoding
size_t	end_pos	output starting point
N_STR *	input	input data
N_STR *	key	encoding/decoding key
size_t	start_pos	input starting point

Macro Definition Documentation

_GNU_SOURCE

#define _GNU_SOURCE

Definition at line 10 of file n_crypto.c.

_GNU_SOURCE_WAS_NOT_DEFINED

#define _GNU_SOURCE_WAS_NOT_DEFINED

Definition at line 11 of file n_crypto.c.

Function Documentation

n_get_cpu_id()

N_STR * n_get_cpu_id

(

)

get the CPU id

Returns

a N_STR *cpuid

Definition at line 134 of file n_crypto.c.

References LOG_ERR, n_log, and nstrprintf.

Referenced by n_vigenere_get_question().

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n_get_current_dir_hd_serial()

N_STR * n_get_current_dir_hd_serial

(

)

get the serial of the current running dir hosting disk

Returns

a N_STR *serial which contain actual running path disk id

Definition at line 73 of file n_crypto.c.

References _nstr, _str, N_STR::data, Free, free_nstr, LOG_ERR, n_log, n_popen(), nstrprintf, and N_STR::written.

Referenced by n_vigenere_get_question().

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n_vigenere_cypher()

N_STR * n_vigenere_cypher	(	N_STR *	input,
		N_STR *	key,
		bool	encipher,
		bool	in_place
	)

encode or decode input using vigenere cypher

Parameters

input	source to encode/decode
key	key to use for the encoding/decoding
encipher	bool, set to 1 => encode, 0 => decode
in_place	bool, set to 1 => use input as output string , 0 return a new encoded copy

Returns

a N_STR *encoded or *decoded string

Definition at line 289 of file n_crypto.c.

References __n_assert, _nstr, add_threaded_process(), N_STR::data, CYPHER_PARAM::dest, destroy_threaded_pool(), DIRECT_PROC, CYPHER_PARAM::encipher, CYPHER_PARAM::end_pos, CYPHER_PARAM::input, key, CYPHER_PARAM::key, LOG_ERR, Malloc, n_log, n_vigenere_cypher_thread(), new_thread_pool(), nstrdup(), refresh_thread_pool(), CYPHER_PARAM::start_pos, thread_pool, wait_for_threaded_pool(), and N_STR::written.

Referenced by n_vigenere_decode(), n_vigenere_decode_in_place(), n_vigenere_encode(), and n_vigenere_encode_in_place().

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n_vigenere_cypher_thread()

void * n_vigenere_cypher_thread

(

void *

ptr

)

encode or decode threaded func using params from ptr

Parameters

ptr	a CYPHER_PARAM *param struc

Returns

NULL

Definition at line 237 of file n_crypto.c.

References __n_assert, N_STR::data, CYPHER_PARAM::dest, CYPHER_PARAM::encipher, CYPHER_PARAM::end_pos, Free, CYPHER_PARAM::input, key, CYPHER_PARAM::key, n_islower(), n_isupper(), n_mathmod, n_tolower(), n_toupper(), and CYPHER_PARAM::start_pos.

Referenced by n_vigenere_cypher().

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n_vigenere_decode_in_place()

N_STR * n_vigenere_decode_in_place	(	N_STR *	string,
		N_STR *	key
	)

decode input using vigenere cypher and key

Parameters

string	source to decode
key	key to use for the encoding/decoding

Returns

a N_STR *decoded

Definition at line 437 of file n_crypto.c.

References key, and n_vigenere_cypher().

Referenced by n_vigenere_decode_file(), n_vigenere_decode_qa(), and n_vigenere_encode_qa().

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n_vigenere_encode_in_place()

N_STR * n_vigenere_encode_in_place	(	N_STR *	string,
		N_STR *	key
	)

encode string in place using vigenere cypher and key

Parameters

string	source to encode
key	key to use for the encoding/decoding

Returns

A pointer to string or an error

Definition at line 427 of file n_crypto.c.

References key, and n_vigenere_cypher().

Referenced by n_vigenere_encode_file(), n_vigenere_encode_qa(), and n_vigenere_quick_encode().

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Variable Documentation

__internal_root_key

char* __internal_root_key = "ENOFGLUCUNZJADRDMCZZSACRBKXAGSLTTFCICPALKHMWWGLVUIFYSLQJIHHXSHOZGRABFNBHGVTOMEBTVIPXZJHHEKIYWNVTWQKERROCTXFGMMLYUJSJFWLFCHQQMMUM"

static

static internal root key, just to obfuscate text so we do not care if is is public

Definition at line 43 of file n_crypto.c.

Referenced by n_vigenere_quick_decode(), and n_vigenere_quick_encode().