/* public api for steve reid's public domain SHA-1 implementation *//* this file is in the public domain */ #ifndef __SHA1_H#define __SHA1_H #ifdef __cplusplusextern "C"{#endif typedef struct {    uint32_t state[5];    uint32_t count[2];    uint8_t buffer[64];} SHA1_CTX; #define SHA1_DIGEST_SIZE 20 void SHA1_Init(SHA1_CTX *context);void SHA1_Update(SHA1_CTX *context, const uint8_t *data, const size_t len);void SHA1_Final(SHA1_CTX *context, uint8_t digest[SHA1_DIGEST_SIZE]); #ifdef __cplusplus}#endif #endif                          /* __SHA1_H */