include/md5.h

   1 /*
   2  * Copyright (C) 1996-2023 The Squid Software Foundation and contributors
   3  *
   4  * Squid software is distributed under GPLv2+ license and includes
   5  * contributions from numerous individuals and organizations.
   6  * Please see the COPYING and CONTRIBUTORS files for details.
   7  */
   8
   9 #ifndef SQUID_MD5_H
  10 #define SQUID_MD5_H
  11
  12 #if HAVE_NETTLE_MD5_H
  13 #include <nettle/md5.h>
  14
  15 typedef struct md5_ctx SquidMD5_CTX;
  16
  17 #define SquidMD5Init(c)       md5_init((c))
  18 #define SquidMD5Update(c,b,l) md5_update((c), (l), (const uint8_t *)(b))
  19 #define SquidMD5Final(d,c)    md5_digest((c), MD5_DIGEST_SIZE, (uint8_t *)(d))
  20
  21 #define SQUID_MD5_DIGEST_LENGTH MD5_DIGEST_SIZE
  22
  23 #else
  24 /*
  25  * This is the header file for the MD5 message-digest algorithm.
  26  * The algorithm is due to Ron Rivest.  This code was
  27  * written by Colin Plumb in 1993, no copyright is claimed.
  28  * This code is in the public domain; do with it what you wish.
  29  *
  30  * Equivalent code is available from RSA Data Security, Inc.
  31  * This code has been tested against that, and is equivalent,
  32  * except that you don't need to include two pages of legalese
  33  * with every copy.
  34  *
  35  * To compute the message digest of a chunk of bytes, declare an
  36  * MD5Context structure, pass it to MD5Init, call MD5Update as
  37  * needed on buffers full of bytes, and then call MD5Final, which
  38  * will fill a supplied 16-byte array with the digest.
  39  *
  40  * Changed so as no longer to depend on Colin Plumb's `usual.h'
  41  * header definitions; now uses stuff from dpkg's config.h
  42  *  - Ian Jackson <ian@chiark.greenend.org.uk>.
  43  * Still in the public domain.
  44  *
  45  * Changed MD5Update to take a void * for easier use and some other
  46  * minor cleanup. - Henrik Nordstrom <henrik@henriknordstrom.net>.
  47  * Still in the public domain.
  48  *
  49  * Prefixed all symbols with "Squid" so they don't collide with
  50  * other libraries.  Duane Wessels <wessels@squid-cache.org>.
  51  * Still in the public domain.
  52  *
  53  */
  54
  55 typedef struct SquidMD5Context {
  56     uint32_t buf[4];
  57     uint32_t bytes[2];
  58     uint32_t in[16];
  59 } SquidMD5_CTX;
  60
  61 SQUIDCEXTERN void SquidMD5Init(struct SquidMD5Context *context);
  62 SQUIDCEXTERN void SquidMD5Update(struct SquidMD5Context *context, const void *buf, unsigned len);
  63 SQUIDCEXTERN void SquidMD5Final(uint8_t digest[16], struct SquidMD5Context *context);
  64 SQUIDCEXTERN void SquidMD5Transform(uint32_t buf[4], uint32_t const in[16]);
  65
  66 #define SQUID_MD5_DIGEST_LENGTH         16
  67
  68 #endif /* HAVE_NETTLE_MD5_H */
  69
  70 #endif /* SQUID_MD5_H */
  71