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1 | /* |
2 | * This is the header file for the MD5 message-digest algorithm. | |
3 | * The algorithm is due to Ron Rivest. This code was | |
4 | * written by Colin Plumb in 1993, no copyright is claimed. | |
5 | * This code is in the public domain; do with it what you wish. | |
6 | * | |
7 | * Equivalent code is available from RSA Data Security, Inc. | |
8 | * This code has been tested against that, and is equivalent, | |
9 | * except that you don't need to include two pages of legalese | |
10 | * with every copy. | |
11 | * | |
12 | * To compute the message digest of a chunk of bytes, declare an | |
13 | * MD5Context structure, pass it to MD5Init, call MD5Update as | |
14 | * needed on buffers full of bytes, and then call MD5Final, which | |
15 | * will fill a supplied 16-byte array with the digest. | |
16 | * | |
17 | * Changed so as no longer to depend on Colin Plumb's `usual.h' | |
18 | * header definitions; now uses stuff from dpkg's config.h | |
19 | * - Ian Jackson <ian@chiark.greenend.org.uk>. | |
20 | * Still in the public domain. | |
21 | */ | |
22 | ||
23 | #ifndef MD5_H | |
24 | #define MD5_H | |
25 | ||
26 | #include "common.h" | |
27 | ||
28 | #ifdef _WIN32 | |
29 | typedef unsigned long uint32; | |
30 | #define UWORD32 uint32 | |
31 | ||
32 | #else /* _WIN32 */ | |
33 | ||
34 | #ifdef _SUNOS | |
35 | typedef unsigned int uint32; | |
36 | #define UWORD32 uint32 | |
37 | #else | |
38 | #define UWORD32 u_int32_t | |
39 | #endif /* _SUNOS */ | |
40 | ||
41 | #endif /* _WIN32 */ | |
42 | ||
43 | /* Determine Endianness */ | |
44 | #if BYTE_ORDER == LITTLE_ENDIAN | |
45 | /* 1234 machines */ | |
46 | #elif BYTE_ORDER == BIG_ENDIAN | |
47 | /* 4321 machines */ | |
48 | # define WORDS_BIGENDIAN 1 | |
49 | #elif BYTE_ORDER == PDP_ENDIAN | |
50 | /* 3412 machines */ | |
51 | #error PDP endianness not supported yet! | |
52 | #else | |
53 | #error unknown endianness! | |
54 | #endif | |
55 | ||
56 | #define md5byte unsigned char | |
57 | ||
58 | struct MD5Context { | |
59 | UWORD32 buf[4]; | |
60 | UWORD32 bytes[2]; | |
61 | UWORD32 in[16]; | |
62 | }; | |
63 | ||
64 | void MD5Init(struct MD5Context *context); | |
65 | void MD5Update(struct MD5Context *context, md5byte const *buf, unsigned len); | |
66 | void MD5Final(unsigned char digest[16], struct MD5Context *context); | |
67 | void MD5Transform(UWORD32 buf[4], UWORD32 const in[16]); | |
68 | ||
69 | #endif /* !MD5_H */ |