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/*
* Copyright (C) 1996-2025 The Squid Software Foundation and contributors
*
* Squid software is distributed under GPLv2+ license and includes
* contributions from numerous individuals and organizations.
* Please see the COPYING and CONTRIBUTORS files for details.
*/
#ifndef SQUID_INCLUDE_MD5_H
#define SQUID_INCLUDE_MD5_H
#if HAVE_NETTLE_MD5_H
#include <nettle/md5.h>
typedef struct md5_ctx SquidMD5_CTX;
#define SquidMD5Init(c) md5_init((c))
#define SquidMD5Update(c,b,l) md5_update((c), (l), (const uint8_t *)(b))
#define SquidMD5Final(d,c) md5_digest((c), MD5_DIGEST_SIZE, (uint8_t *)(d))
#define SQUID_MD5_DIGEST_LENGTH MD5_DIGEST_SIZE
#else
/*
* This is the header file for the MD5 message-digest algorithm.
* The algorithm is due to Ron Rivest. This code was
* written by Colin Plumb in 1993, no copyright is claimed.
* This code is in the public domain; do with it what you wish.
*
* Equivalent code is available from RSA Data Security, Inc.
* This code has been tested against that, and is equivalent,
* except that you don't need to include two pages of legalese
* with every copy.
*
* To compute the message digest of a chunk of bytes, declare an
* MD5Context structure, pass it to MD5Init, call MD5Update as
* needed on buffers full of bytes, and then call MD5Final, which
* will fill a supplied 16-byte array with the digest.
*
* Changed so as no longer to depend on Colin Plumb's `usual.h'
* header definitions; now uses stuff from dpkg's config.h
* - Ian Jackson <ian@chiark.greenend.org.uk>.
* Still in the public domain.
*
* Changed MD5Update to take a void * for easier use and some other
* minor cleanup. - Henrik Nordstrom <henrik@henriknordstrom.net>.
* Still in the public domain.
*
* Prefixed all symbols with "Squid" so they don't collide with
* other libraries. Duane Wessels <wessels@squid-cache.org>.
* Still in the public domain.
*
*/
typedef struct SquidMD5Context {
uint32_t buf[4];
uint32_t bytes[2];
uint32_t in[16];
} SquidMD5_CTX;
SQUIDCEXTERN void SquidMD5Init(struct SquidMD5Context *context);
SQUIDCEXTERN void SquidMD5Update(struct SquidMD5Context *context, const void *buf, unsigned len);
SQUIDCEXTERN void SquidMD5Final(uint8_t digest[16], struct SquidMD5Context *context);
SQUIDCEXTERN void SquidMD5Transform(uint32_t buf[4], uint32_t const in[16]);
#define SQUID_MD5_DIGEST_LENGTH 16
#endif /* HAVE_NETTLE_MD5_H */
#endif /* SQUID_INCLUDE_MD5_H */
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