| #ifndef _SHA256_H |
| #define _SHA256_H |
| |
| #define SHA256_SUM_LEN 32 |
| #define SHA256_DER_LEN 19 |
| |
| extern const uint8_t sha256_der_prefix[]; |
| |
| /* Reset watchdog each time we process this many bytes */ |
| #define CHUNKSZ_SHA256 (64 * 1024) |
| |
| typedef struct { |
| uint32_t total[2]; |
| uint32_t state[8]; |
| uint8_t buffer[64]; |
| } 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 */ |
