crypt.c File Reference

#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <time.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include "zlib.h"
#include "crypt.h"

Include dependency graph for crypt.c:

Macros
#define	CRC32(c, b)   ((*(pcrc_32_tab+(((uint32_t)(c) ^ (b)) & 0xff))) ^ ((c) >> 8))

Functions
uint8_t	decrypt_byte (uint32_t *pkeys)
uint8_t	update_keys (uint32_t *pkeys, const z_crc_t *pcrc_32_tab, int32_t c)
void	init_keys (const char *passwd, uint32_t *pkeys, const z_crc_t *pcrc_32_tab)
int	cryptrand (unsigned char *buf, unsigned int len)
int	crypthead (const char *passwd, uint8_t *buf, int buf_size, uint32_t *pkeys, const z_crc_t *pcrc_32_tab, uint8_t verify1, uint8_t verify2)

Macro Definition Documentation

CRC32

#define CRC32	(		c,
			b
	)		((*(pcrc_32_tab+(((uint32_t)(c) ^ (b)) & 0xff))) ^ ((c) >> 8))

Function Documentation

crypthead()

int crypthead	(	const char *	passwd,
		uint8_t *	buf,
		int	buf_size,
		uint32_t *	pkeys,
		const z_crc_t *	pcrc_32_tab,
		uint8_t	verify1,
		uint8_t	verify2
	)

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cryptrand()

int cryptrand	(	unsigned char *	buf,
		unsigned int	len
	)

decrypt_byte()

uint8_t decrypt_byte

(

uint32_t *

pkeys

)

init_keys()

void init_keys	(	const char *	passwd,
		uint32_t *	pkeys,
		const z_crc_t *	pcrc_32_tab
	)

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update_keys()

uint8_t update_keys	(	uint32_t *	pkeys,
		const z_crc_t *	pcrc_32_tab,
		int32_t	c
	)