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Jean-Christophe PLAGNIOL-VILLARDc58a6b82008-06-07 12:29:52 +02001#ifndef _SHA256_H
2#define _SHA256_H
3
4#define SHA256_SUM_LEN 32
Andrew Duda3db9ff02016-11-08 18:53:40 +00005#define SHA256_DER_LEN 19
6
7extern const uint8_t sha256_der_prefix[];
Jean-Christophe PLAGNIOL-VILLARDc58a6b82008-06-07 12:29:52 +02008
Simon Glass0df82432012-12-05 14:46:34 +00009/* Reset watchdog each time we process this many bytes */
10#define CHUNKSZ_SHA256 (64 * 1024)
11
Jean-Christophe PLAGNIOL-VILLARDc58a6b82008-06-07 12:29:52 +020012typedef 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);
Simon Glass0df82432012-12-05 14:46:34 +000019void sha256_update(sha256_context *ctx, const uint8_t *input, uint32_t length);
Jean-Christophe PLAGNIOL-VILLARDc58a6b82008-06-07 12:29:52 +020020void sha256_finish(sha256_context * ctx, uint8_t digest[SHA256_SUM_LEN]);
21
Simon Glass0df82432012-12-05 14:46:34 +000022void sha256_csum_wd(const unsigned char *input, unsigned int ilen,
23 unsigned char *output, unsigned int chunk_sz);
24
Jean-Christophe PLAGNIOL-VILLARDc58a6b82008-06-07 12:29:52 +020025#endif /* _SHA256_H */