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Bob 2015-10-04 17:27:19 +02:00
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bitlair_doorduino/sha1.h Normal file
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#ifndef SHA1_H
#define SHA1_H
#include <stdint.h>
#include <stddef.h>
#define __LITTLE_ENDIAN__
//#define __BIG_ENDIAN__
namespace sha1
{
/* This code is public-domain - it is based on libcrypt
* placed in the public domain by Wei Dai and other contributors.
*/
// gcc -Wall -DSHA1TEST -o sha1test sha1.c && ./sha1test
#ifdef __BIG_ENDIAN__
# define SHA_BIG_ENDIAN
#elif defined __LITTLE_ENDIAN__
/* override */
#elif defined __BYTE_ORDER
# if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
# define SHA_BIG_ENDIAN
# endif
#else // ! defined __LITTLE_ENDIAN__
# include <machine/endian.h> // machine/endian.h
# if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
# define SHA_BIG_ENDIAN
# endif
#endif
/* header */
#define HASH_LENGTH 20
#define BLOCK_LENGTH 64
typedef struct sha1nfo {
uint32_t buffer[BLOCK_LENGTH/4];
uint32_t state[HASH_LENGTH/4];
uint32_t byteCount;
uint8_t bufferOffset;
uint8_t keyBuffer[BLOCK_LENGTH];
uint8_t innerHash[HASH_LENGTH];
} sha1nfo;
/* public API - prototypes - TODO: doxygen*/
/**
*/
void sha1_init(sha1nfo *s);
/**
*/
void sha1_writebyte(sha1nfo *s, uint8_t data);
/**
*/
void sha1_write(sha1nfo *s, const char *data, size_t len);
/**
*/
uint8_t* sha1_result(sha1nfo *s);
/**
*/
void sha1_initHmac(sha1nfo *s, const uint8_t* key, int keyLength);
/**
*/
uint8_t* sha1_resultHmac(sha1nfo *s);
}
#endif //SHA1_H