Macros
#define	n_mathmod(__a, __b) ((__a % __b + __b) % __b)
	The % operator returns a result that adopts the sign of the dividend, a true mathematical modulus adopts the sign of the divisor.

Functions
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 *rootkey)
	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_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 *rootkey)
	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_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_question)
	quick decode data

N_STR *	n_vigenere_quick_encode (N_STR *decoded_question)
	quick encode data

Detailed Description

Macro Definition Documentation

◆ n_mathmod

#define n_mathmod	(	__a,
		__b
	)	((__a % __b + __b) % __b)

The % operator returns a result that adopts the sign of the dividend, a true mathematical modulus adopts the sign of the divisor.

This method implements a mathematical modulus

Definition at line 26 of file n_crypto.h.

Function Documentation

◆ n_vigenere_decode()

N_STR * n_vigenere_decode	(	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 417 of file n_crypto.c.

References key, and n_vigenere_cypher().

Referenced by main(), and n_vigenere_quick_decode().

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◆ n_vigenere_decode_file()

int n_vigenere_decode_file	(	N_STR *	in,
		N_STR *	out,
		N_STR *	key
	)

directly vigenere decode a file using key

Parameters

in	input path and filename
out	output path and filename
key	key to use

Returns: TRUE or FALSE

Definition at line 614 of file n_crypto.c.

References __n_assert, _nstr, file_to_nstr(), free_nstr, key, LOG_ERR, n_base64_decode(), n_log, n_vigenere_decode_in_place(), and nstr_to_file().

Referenced by main().

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◆ n_vigenere_decode_file_qa()

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

Parameters

in	input path and filename
out	output path and filename
question	question key to use
answer	answer key to use

Returns: TRUE or FALSE

Definition at line 734 of file n_crypto.c.

References __n_assert, _nstr, file_to_nstr(), free_nstr, LOG_ERR, n_log, n_vigenere_decode_qa(), and nstr_to_file().

Referenced by main().

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◆ n_vigenere_decode_qa()

N_STR * n_vigenere_decode_qa	(	N_STR *	input_data,
		N_STR *	question,
		N_STR *	answer
	)

directly vigenere decode a file using key

Parameters

input_data	input path and filename
question	question key to use
answer	answer key to use

Returns: a N_STR *decoded string or NULL

Definition at line 691 of file n_crypto.c.

References __n_assert, N_STR::data, free_nstr, N_STR::length, LOG_DEBUG, LOG_ERR, n_base64_decode(), n_log, n_vigenere_decode_in_place(), n_vigenere_encode(), n_vigenere_quick_decode(), and N_STR::written.

Referenced by main(), and n_vigenere_decode_file_qa().

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◆ n_vigenere_encode()

N_STR * n_vigenere_encode	(	N_STR *	string,
		N_STR *	key
	)

encode input using vigenere cypher and key

Parameters

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

Returns: a N_STR *encoded

Definition at line 407 of file n_crypto.c.

References key, and n_vigenere_cypher().

Referenced by main(), and n_vigenere_decode_qa().

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◆ n_vigenere_encode_file()

int n_vigenere_encode_file	(	N_STR *	in,
		N_STR *	out,
		N_STR *	key
	)

directly vigenere encode a file using key

Parameters

in	input path and filename
out	output path and filename
key	key to use

Returns: TRUE or FALSE

Definition at line 571 of file n_crypto.c.

References __n_assert, _nstr, file_to_nstr(), free_nstr, key, LOG_ERR, n_base64_encode(), n_log, n_vigenere_encode_in_place(), and nstr_to_file().

Referenced by main().

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◆ n_vigenere_encode_file_qa()

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

Parameters

in	input path and filename
out	output path and filename
question	question key to use
answer	answer key to use

Returns: TRUE or FALSE

Definition at line 763 of file n_crypto.c.

References __n_assert, _nstr, file_to_nstr(), free_nstr, LOG_ERR, n_log, n_vigenere_encode_qa(), and nstr_to_file().

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◆ n_vigenere_encode_qa()

N_STR * n_vigenere_encode_qa	(	N_STR *	input_data,
		N_STR *	question,
		N_STR *	answer
	)

directly vigenere encode a file using key

Parameters

input_data	input path and filename
question	question key to use
answer	answer key to use

Returns: a N_STR *encoded string or NULL

Definition at line 656 of file n_crypto.c.

References __n_assert, free_nstr, LOG_ERR, n_base64_encode(), n_log, n_vigenere_decode_in_place(), n_vigenere_encode_in_place(), and n_vigenere_quick_decode().

Referenced by main(), and n_vigenere_encode_file_qa().

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◆ n_vigenere_get_answer()

N_STR * n_vigenere_get_answer	(	N_STR *	root_key,
		N_STR *	question
	)

get an answer from a root key and a question

Parameters

root_key	the key used to do the inital encoding
question	question generated from hardware

Returns: a N_STR *answer_key string

Definition at line 535 of file n_crypto.c.

References __n_assert, N_STR::data, free_nstr, N_STR::length, LOG_ERR, n_log, n_vigenere_quick_decode(), new_nstr(), and N_STR::written.

Referenced by main().

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◆ n_vigenere_get_question()

N_STR * n_vigenere_get_question ( size_t question_size )

get a question generated from the current machine hardware (disk&cpu)

Parameters

question_size size of the needed question. Must be a multiple of 2

Returns: a N_STR *question string

Definition at line 478 of file n_crypto.c.

References _nstr, N_STR::data, free_nstr, LOG_ERR, n_base64_encode(), n_get_cpu_id(), n_get_current_dir_hd_serial(), n_log, n_vigenere_quick_encode(), new_nstr(), nstrprintf_cat, and N_STR::written.

Referenced by main().

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◆ n_vigenere_get_rootkey()

N_STR * n_vigenere_get_rootkey ( size_t rootkey_size )

get a rootkey randomly generated

Parameters

rootkey_size size of the needed rootkey. Must be a multiple of 2

Returns: a N_STR *rootkey string

Definition at line 50 of file n_crypto.c.

References N_STR::data, LOG_ERR, n_log, new_nstr(), and N_STR::written.

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◆ n_vigenere_quick_decode()

N_STR * n_vigenere_quick_decode ( N_STR * encoded_data )

quick decode data

Parameters

encoded_data the data to decode

Returns: a N_STR *decoded_data

Definition at line 461 of file n_crypto.c.

References __internal_root_key, char_to_nstr(), free_nstr, n_base64_decode(), and n_vigenere_decode().

Referenced by main(), n_vigenere_decode_qa(), n_vigenere_encode_qa(), and n_vigenere_get_answer().

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◆ n_vigenere_quick_encode()

N_STR * n_vigenere_quick_encode ( N_STR * decoded_data )

quick encode data

Parameters

decoded_data the data to encode

Returns: a N_STR *encoded_data

Definition at line 446 of file n_crypto.c.

References __internal_root_key, char_to_nstr(), free_nstr, n_base64_encode(), and n_vigenere_encode_in_place().

Referenced by n_vigenere_get_question().

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Macros

Functions

Detailed Description

Macro Definition Documentation

◆ n_mathmod

Function Documentation

◆ n_vigenere_decode()

◆ n_vigenere_decode_file()

◆ n_vigenere_decode_file_qa()

◆ n_vigenere_decode_qa()

◆ n_vigenere_encode()

◆ n_vigenere_encode_file()

◆ n_vigenere_encode_file_qa()

◆ n_vigenere_encode_qa()

◆ n_vigenere_get_answer()

◆ n_vigenere_get_question()

◆ n_vigenere_get_rootkey()

◆ n_vigenere_quick_decode()

◆ n_vigenere_quick_encode()