usr/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  * 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 <ijackson@nyx.cs.du.edu>.
  20  * Still in the public domain.
  21  */
  22
  23 #ifndef MD5_H
  24 #define MD5_H
  25
  26 #include <string.h>
  27 #include <sys/types.h>
  28 #include <netinet/in.h>
  29 #include <stdint.h>
  30 #if (__BYTE_ORDER == __BIG_ENDIAN)
  31 #  define WORDS_BIGENDIAN 1
  32 #endif
  33
  34 typedef uint32_t UWORD32;
  35
  36
  37 #ifdef __cplusplus
  38 extern "C" {
  39 #endif
  40
  41
  42 #define md5byte unsigned char
  43
  44 struct MD5Context {
  45         UWORD32 buf[4];
  46         UWORD32 bytes[2];
  47         UWORD32 in[16];
  48 };
  49
  50 void MD5Init(struct MD5Context *context);
  51 void MD5Update(struct MD5Context *context, md5byte const *buf, unsigned len);
  52 void MD5Final(unsigned char digest[16], struct MD5Context *context);
  53 void MD5Transform(UWORD32 buf[4], UWORD32 const in[16]);
  54
  55
  56 #ifdef __cplusplus
  57 }
  58 #endif
  59
  60 #endif /* !MD5_H */