include/u-boot/sha256.h

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