40 lines
1013 B
C
40 lines
1013 B
C
#ifndef _SHA256_H
|
|
#define _SHA256_H
|
|
|
|
#define SHA256_SUM_LEN 32
|
|
|
|
/* Reset watchdog each time we process this many bytes */
|
|
#define CHUNKSZ_SHA256 (64 * 1024)
|
|
|
|
|
|
#define SHA224_DIGEST_SIZE 28
|
|
|
|
#define SHA256_DIGEST_SIZE 32
|
|
#define SHA256_BLOCK_SIZE 64
|
|
|
|
/* SHA2 context */
|
|
typedef struct {
|
|
/* hardware SHA compile */
|
|
uint32_t h[8];
|
|
uint32_t tot_len;
|
|
uint32_t len;
|
|
uint32_t digest_len;
|
|
uint8_t block[2 * SHA256_BLOCK_SIZE];
|
|
uint8_t buf[SHA256_DIGEST_SIZE]; /* Used to store the final digest. */
|
|
uint8_t tmp[12]; // temp sha bits counter saved here by hw.
|
|
|
|
/* software SHA compile */
|
|
uint32_t total[2];
|
|
uint32_t state[8];
|
|
uint8_t buffer[64];
|
|
}sha2_ctx,sha256_context;
|
|
|
|
void sha256_starts(sha256_context * ctx);
|
|
void sha256_update(sha256_context *ctx, const uint8_t *input, uint32_t length);
|
|
void sha256_finish(sha256_context * ctx, uint8_t digest[SHA256_SUM_LEN]);
|
|
|
|
void sha256_csum_wd(const unsigned char *input, unsigned int ilen,
|
|
unsigned char *output, unsigned int chunk_sz);
|
|
|
|
#endif /* _SHA256_H */
|