src/lt256.h

   1 /* License: public domain -or- http://www.wtfpl.net/txt/copying/ */
   2
   3 #ifndef LT256_H
   4 #define LT256_H
   5
   6 #include <stddef.h>
   7 #include <stdint.h>
   8
   9 #ifdef __cplusplus
  10 extern "C" {
  11 #endif
  12
  13 #define SHA256_DIGEST_LENGTH 32
  14
  15 typedef struct SHA256_CTX {
  16     uint64_t length;
  17     uint32_t state[8], curlen;
  18     unsigned char buf[64];
  19     /*const void *data; */
  20 } SHA256_CTX;
  21
  22 /* return value is non-zero/non-NULL on success */
  23 extern int SHA256_Init(SHA256_CTX *c);
  24 extern int SHA256_Update(SHA256_CTX *c, const void *data, size_t len);
  25 extern int SHA256_Final(unsigned char *md, SHA256_CTX *c);
  26 extern unsigned char *SHA256(const void *data, size_t len, unsigned char *md);
  27
  28 #ifdef __cplusplus
  29 }
  30 #endif
  31
  32 #endif /* LT256_H */