src/md5.h

   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  * md5_context_s structure, pass it to MD5_Init, call MD5_Update as
  14  * needed on buffers full of bytes, and then call MD5_Final, 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 "doomtype.h"
  27
  28 typedef struct md5_context_s md5_context_t;
  29 typedef byte md5_digest_t[16];
  30
  31 struct md5_context_s {
  32         uint32_t buf[4];
  33         uint32_t bytes[2];
  34         uint32_t in[16];
  35 };
  36
  37 void MD5_Init(md5_context_t *context);
  38 void MD5_Update(md5_context_t *context, byte const *buf, unsigned len);
  39 void MD5_UpdateInt32(md5_context_t *context, unsigned int val);
  40 void MD5_UpdateString(md5_context_t *context, char *str);
  41 void MD5_Final(unsigned char digest[16], md5_context_t *context);
  42 void MD5_Transform(uint32_t buf[4], uint32_t const in[16]);
  43
  44 #endif /* !MD5_H */
  45