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sha1.h
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 <[email protected]>
6  * 100% Public Domain
7  */
8 
9 #ifndef _SHA1_H
10 #define _SHA1_H
11 
12 #ifndef WITH_OPENSSL
13 
14 #define SHA1_BLOCK_LENGTH 64
15 #define SHA1_DIGEST_LENGTH 20
16 #define SHA1_DIGEST_STRING_LENGTH (SHA1_DIGEST_LENGTH * 2 + 1)
17 
18 typedef struct {
19  u_int32_t state[5];
20  u_int64_t count;
21  u_int8_t buffer[SHA1_BLOCK_LENGTH];
22 } SHA1_CTX;
23 
24 void SHA1Init(SHA1_CTX *);
25 void SHA1Pad(SHA1_CTX *);
26 void SHA1Transform(u_int32_t [5], const u_int8_t [SHA1_BLOCK_LENGTH])
27  __attribute__((__bounded__(__minbytes__,1,5)))
28  __attribute__((__bounded__(__minbytes__,2,SHA1_BLOCK_LENGTH)));
29 void SHA1Update(SHA1_CTX *, const u_int8_t *, size_t)
30  __attribute__((__bounded__(__string__,2,3)));
31 void SHA1Final(u_int8_t [SHA1_DIGEST_LENGTH], SHA1_CTX *)
32  __attribute__((__bounded__(__minbytes__,1,SHA1_DIGEST_LENGTH)));
33 char *SHA1End(SHA1_CTX *, char *)
34  __attribute__((__bounded__(__minbytes__,2,SHA1_DIGEST_STRING_LENGTH)));
35 char *SHA1File(const char *, char *)
36  __attribute__((__bounded__(__minbytes__,2,SHA1_DIGEST_STRING_LENGTH)));
37 char *SHA1FileChunk(const char *, char *, off_t, off_t)
38  __attribute__((__bounded__(__minbytes__,2,SHA1_DIGEST_STRING_LENGTH)));
39 char *SHA1Data(const u_int8_t *, size_t, char *)
40  __attribute__((__bounded__(__string__,1,2)))
41  __attribute__((__bounded__(__minbytes__,3,SHA1_DIGEST_STRING_LENGTH)));
42 
43 #define HTONDIGEST(x) do { \
44  x[0] = htonl(x[0]); \
45  x[1] = htonl(x[1]); \
46  x[2] = htonl(x[2]); \
47  x[3] = htonl(x[3]); \
48  x[4] = htonl(x[4]); } while (0)
49 
50 #define NTOHDIGEST(x) do { \
51  x[0] = ntohl(x[0]); \
52  x[1] = ntohl(x[1]); \
53  x[2] = ntohl(x[2]); \
54  x[3] = ntohl(x[3]); \
55  x[4] = ntohl(x[4]); } while (0)
56 
57 #endif /* !WITH_OPENSSL */
58 #endif /* _SHA1_H */
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