1/* $OpenBSD: sha1.h,v 1.24 2012/12/05 23:19:57 deraadt Exp $ */ 2 3/* 4 * SHA-1 in C 5 * By Steve Reid <steve@edmweb.com> 6 * 100% Public Domain 7 */ 8 9#ifndef _SHA1_H 10#define _SHA1_H 11 12#include <stddef.h> 13#include <stdint.h> 14 15#define SHA1_BLOCK_LENGTH 64 16#define SHA1_DIGEST_LENGTH 20 17#define SHA1_DIGEST_STRING_LENGTH (SHA1_DIGEST_LENGTH * 2 + 1) 18 19#ifdef __cplusplus 20extern "C" { 21#endif 22 23typedef struct _SHA1_CTX { 24 uint32_t state[5]; 25 uint64_t count; 26 uint8_t buffer[SHA1_BLOCK_LENGTH]; 27} SHA1_CTX; 28 29void SHA1Init(SHA1_CTX *); 30void SHA1Pad(SHA1_CTX *); 31void SHA1Transform(uint32_t [5], const uint8_t [SHA1_BLOCK_LENGTH]); 32void SHA1Update(SHA1_CTX *, const uint8_t *, size_t); 33void SHA1Final(uint8_t [SHA1_DIGEST_LENGTH], SHA1_CTX *); 34 35#define HTONDIGEST(x) do { \ 36 x[0] = htonl(x[0]); \ 37 x[1] = htonl(x[1]); \ 38 x[2] = htonl(x[2]); \ 39 x[3] = htonl(x[3]); \ 40 x[4] = htonl(x[4]); } while (0) 41 42#define NTOHDIGEST(x) do { \ 43 x[0] = ntohl(x[0]); \ 44 x[1] = ntohl(x[1]); \ 45 x[2] = ntohl(x[2]); \ 46 x[3] = ntohl(x[3]); \ 47 x[4] = ntohl(x[4]); } while (0) 48 49#ifdef __cplusplus 50} 51#endif 52 53#endif /* _SHA1_H */ 54