blob: 2da295231b56c3415895cca2d6e613a3e33f10bb [file] [log] [blame]
xf.liaa4d92f2023-09-13 00:18:58 -07001#ifndef _SHA256_H
2#define _SHA256_H
3
4#define SHA256_SUM_LEN 32
5#define SHA256_DER_LEN 19
6
7extern const uint8_t sha256_der_prefix[];
8
9/* Reset watchdog each time we process this many bytes */
10#define CHUNKSZ_SHA256 (64 * 1024)
11
12typedef struct {
13 uint32_t total[2];
14 uint32_t state[8];
15 uint8_t buffer[64];
16} sha256_context;
17
18void sha256_starts(sha256_context * ctx);
19void sha256_update(sha256_context *ctx, const uint8_t *input, uint32_t length);
20void sha256_finish(sha256_context * ctx, uint8_t digest[SHA256_SUM_LEN]);
21
22void sha256_csum_wd(const unsigned char *input, unsigned int ilen,
23 unsigned char *output);
24
25#endif /* _SHA256_H */