uuid/detail/md5.hpp

0001 #ifndef BOOST_UUID_DETAIL_MD5_HPP_INCLUDED
0002 #define BOOST_UUID_DETAIL_MD5_HPP_INCLUDED
0003
0004 /*
0005  * This RFC 1321 compatible MD5 implementation originated at:
0006  * http://openwall.info/wiki/people/solar/software/public-domain-source-code/md5
0007  *
0008  * Author:
0009  * Alexander Peslyak, better known as Solar Designer <solar at openwall.com>
0010  *
0011  * This software was written by Alexander Peslyak in 2001.  No copyright is
0012  * claimed, and the software is hereby placed in the public domain.
0013  * In case this attempt to disclaim copyright and place the software in the
0014  * public domain is deemed null and void, then the software is
0015  * Copyright (c) 2001 Alexander Peslyak and it is hereby released to the
0016  * general public under the following terms:
0017  *
0018  * Redistribution and use in source and binary forms, with or without
0019  * modification, are permitted.
0020  *
0021  * There's ABSOLUTELY NO WARRANTY, express or implied.
0022  *
0023  */
0024
0025 // Distributed under the Boost Software License, Version 1.0. (See
0026 // accompanying file LICENSE_1_0.txt or copy at
0027 // https://www.boost.org/LICENSE_1_0.txt)
0028
0029 #include <boost/uuid/detail/numeric_cast.hpp>
0030 #include <boost/uuid/uuid.hpp> // for version
0031 #include <string.h>
0032
0033 namespace boost {
0034 namespace uuids {
0035 namespace detail {
0036
0037 class md5
0038 {
0039 public:
0040
0041     typedef unsigned char digest_type[ 16 ];
0042
0043     md5()
0044     {
0045         MD5_Init(&ctx_);
0046     }
0047
0048     void process_byte(unsigned char byte)
0049     {
0050         MD5_Update(&ctx_, &byte, 1);
0051     }
0052
0053     void process_bytes(void const* buffer, std::size_t byte_count)
0054     {
0055         MD5_Update(&ctx_, buffer, detail::numeric_cast<unsigned long>(byte_count));
0056     }
0057
0058     void get_digest(digest_type& digest)
0059     {
0060         MD5_Final(digest, &ctx_);
0061     }
0062
0063     unsigned char get_version() const
0064     {
0065         // RFC 4122 Section 4.1.3
0066         return uuid::version_name_based_md5;
0067     }
0068
0069 private:
0070
0071     /* Any 32-bit or wider unsigned integer data type will do */
0072     typedef std::uint32_t MD5_u32plus;
0073
0074     typedef struct {
0075         MD5_u32plus lo, hi;
0076         MD5_u32plus a, b, c, d;
0077         unsigned char buffer[64];
0078         MD5_u32plus block[16];
0079     } MD5_CTX;
0080
0081     /*
0082      * The basic MD5 functions.
0083      *
0084      * F and G are optimized compared to their RFC 1321 definitions for
0085      * architectures that lack an AND-NOT instruction, just like in Colin Plumb's
0086      * implementation.
0087      */
0088     BOOST_FORCEINLINE MD5_u32plus BOOST_UUID_DETAIL_MD5_F(MD5_u32plus x, MD5_u32plus y, MD5_u32plus z) { return ((z) ^ ((x) & ((y) ^ (z)))); }
0089     BOOST_FORCEINLINE MD5_u32plus BOOST_UUID_DETAIL_MD5_G(MD5_u32plus x, MD5_u32plus y, MD5_u32plus z) { return ((y) ^ ((z) & ((x) ^ (y)))); }
0090     BOOST_FORCEINLINE MD5_u32plus BOOST_UUID_DETAIL_MD5_H(MD5_u32plus x, MD5_u32plus y, MD5_u32plus z) { return (((x) ^ (y)) ^ (z)); }
0091     BOOST_FORCEINLINE MD5_u32plus BOOST_UUID_DETAIL_MD5_H2(MD5_u32plus x, MD5_u32plus y, MD5_u32plus z) { return ((x) ^ ((y) ^ (z))); }
0092     BOOST_FORCEINLINE MD5_u32plus BOOST_UUID_DETAIL_MD5_I(MD5_u32plus x, MD5_u32plus y, MD5_u32plus z) { return ((y) ^ ((x) | ~(z))); }
0093
0094     /*
0095      * The MD5 transformation for all four rounds.
0096      */
0097     #define BOOST_UUID_DETAIL_MD5_STEP(f, a, b, c, d, x, t, s) \
0098         (a) += f((b), (c), (d)) + (x) + (t); \
0099         (a) = (((a) << (s)) | (((a) & 0xffffffff) >> (32 - (s)))); \
0100         (a) += (b);
0101
0102     /*
0103      * SET reads 4 input bytes in little-endian byte order and stores them in a
0104      * properly aligned word in host byte order.
0105      *
0106      * The check for little-endian architectures that tolerate unaligned memory
0107      * accesses is just an optimization.  Nothing will break if it fails to detect
0108      * a suitable architecture.
0109      *
0110      * Unfortunately, this optimization may be a C strict aliasing rules violation
0111      * if the caller's data buffer has effective type that cannot be aliased by
0112      * MD5_u32plus.  In practice, this problem may occur if these MD5 routines are
0113      * inlined into a calling function, or with future and dangerously advanced
0114      * link-time optimizations.  For the time being, keeping these MD5 routines in
0115      * their own translation unit avoids the problem.
0116      */
0117     #if defined(__i386__) || defined(__x86_64__) || defined(__vax__)
0118     #define BOOST_UUID_DETAIL_MD5_SET(n) \
0119         (memcpy(&ctx->block[(n)], &ptr[(n) * 4], sizeof(MD5_u32plus)), (ctx->block[(n)]))
0120     #define BOOST_UUID_DETAIL_MD5_GET(n) \
0121         (ctx->block[(n)])
0122     #else
0123     #define BOOST_UUID_DETAIL_MD5_SET(n) \
0124         (ctx->block[(n)] = \
0125         (MD5_u32plus)ptr[(n) * 4] | \
0126         ((MD5_u32plus)ptr[(n) * 4 + 1] << 8) | \
0127         ((MD5_u32plus)ptr[(n) * 4 + 2] << 16) | \
0128         ((MD5_u32plus)ptr[(n) * 4 + 3] << 24))
0129     #define BOOST_UUID_DETAIL_MD5_GET(n) \
0130         (ctx->block[(n)])
0131     #endif
0132
0133     /*
0134      * This processes one or more 64-byte data blocks, but does NOT update the bit
0135      * counters.  There are no alignment requirements.
0136      */
0137     const void *body(MD5_CTX *ctx, const void *data, unsigned long size)
0138     {
0139         const unsigned char *ptr;
0140         MD5_u32plus a, b, c, d;
0141         MD5_u32plus saved_a, saved_b, saved_c, saved_d;
0142
0143         ptr = (const unsigned char *)data;
0144
0145         a = ctx->a;
0146         b = ctx->b;
0147         c = ctx->c;
0148         d = ctx->d;
0149
0150         do {
0151             saved_a = a;
0152             saved_b = b;
0153             saved_c = c;
0154             saved_d = d;
0155
0156     /* Round 1 */
0157             BOOST_UUID_DETAIL_MD5_STEP(BOOST_UUID_DETAIL_MD5_F, a, b, c, d, BOOST_UUID_DETAIL_MD5_SET(0), 0xd76aa478, 7)
0158             BOOST_UUID_DETAIL_MD5_STEP(BOOST_UUID_DETAIL_MD5_F, d, a, b, c, BOOST_UUID_DETAIL_MD5_SET(1), 0xe8c7b756, 12)
0159             BOOST_UUID_DETAIL_MD5_STEP(BOOST_UUID_DETAIL_MD5_F, c, d, a, b, BOOST_UUID_DETAIL_MD5_SET(2), 0x242070db, 17)
0160             BOOST_UUID_DETAIL_MD5_STEP(BOOST_UUID_DETAIL_MD5_F, b, c, d, a, BOOST_UUID_DETAIL_MD5_SET(3), 0xc1bdceee, 22)
0161             BOOST_UUID_DETAIL_MD5_STEP(BOOST_UUID_DETAIL_MD5_F, a, b, c, d, BOOST_UUID_DETAIL_MD5_SET(4), 0xf57c0faf, 7)
0162             BOOST_UUID_DETAIL_MD5_STEP(BOOST_UUID_DETAIL_MD5_F, d, a, b, c, BOOST_UUID_DETAIL_MD5_SET(5), 0x4787c62a, 12)
0163             BOOST_UUID_DETAIL_MD5_STEP(BOOST_UUID_DETAIL_MD5_F, c, d, a, b, BOOST_UUID_DETAIL_MD5_SET(6), 0xa8304613, 17)
0164             BOOST_UUID_DETAIL_MD5_STEP(BOOST_UUID_DETAIL_MD5_F, b, c, d, a, BOOST_UUID_DETAIL_MD5_SET(7), 0xfd469501, 22)
0165             BOOST_UUID_DETAIL_MD5_STEP(BOOST_UUID_DETAIL_MD5_F, a, b, c, d, BOOST_UUID_DETAIL_MD5_SET(8), 0x698098d8, 7)
0166             BOOST_UUID_DETAIL_MD5_STEP(BOOST_UUID_DETAIL_MD5_F, d, a, b, c, BOOST_UUID_DETAIL_MD5_SET(9), 0x8b44f7af, 12)
0167             BOOST_UUID_DETAIL_MD5_STEP(BOOST_UUID_DETAIL_MD5_F, c, d, a, b, BOOST_UUID_DETAIL_MD5_SET(10), 0xffff5bb1, 17)
0168             BOOST_UUID_DETAIL_MD5_STEP(BOOST_UUID_DETAIL_MD5_F, b, c, d, a, BOOST_UUID_DETAIL_MD5_SET(11), 0x895cd7be, 22)
0169             BOOST_UUID_DETAIL_MD5_STEP(BOOST_UUID_DETAIL_MD5_F, a, b, c, d, BOOST_UUID_DETAIL_MD5_SET(12), 0x6b901122, 7)
0170             BOOST_UUID_DETAIL_MD5_STEP(BOOST_UUID_DETAIL_MD5_F, d, a, b, c, BOOST_UUID_DETAIL_MD5_SET(13), 0xfd987193, 12)
0171             BOOST_UUID_DETAIL_MD5_STEP(BOOST_UUID_DETAIL_MD5_F, c, d, a, b, BOOST_UUID_DETAIL_MD5_SET(14), 0xa679438e, 17)
0172             BOOST_UUID_DETAIL_MD5_STEP(BOOST_UUID_DETAIL_MD5_F, b, c, d, a, BOOST_UUID_DETAIL_MD5_SET(15), 0x49b40821, 22)
0173
0174     /* Round 2 */
0175             BOOST_UUID_DETAIL_MD5_STEP(BOOST_UUID_DETAIL_MD5_G, a, b, c, d, BOOST_UUID_DETAIL_MD5_GET(1), 0xf61e2562, 5)
0176             BOOST_UUID_DETAIL_MD5_STEP(BOOST_UUID_DETAIL_MD5_G, d, a, b, c, BOOST_UUID_DETAIL_MD5_GET(6), 0xc040b340, 9)
0177             BOOST_UUID_DETAIL_MD5_STEP(BOOST_UUID_DETAIL_MD5_G, c, d, a, b, BOOST_UUID_DETAIL_MD5_GET(11), 0x265e5a51, 14)
0178             BOOST_UUID_DETAIL_MD5_STEP(BOOST_UUID_DETAIL_MD5_G, b, c, d, a, BOOST_UUID_DETAIL_MD5_GET(0), 0xe9b6c7aa, 20)
0179             BOOST_UUID_DETAIL_MD5_STEP(BOOST_UUID_DETAIL_MD5_G, a, b, c, d, BOOST_UUID_DETAIL_MD5_GET(5), 0xd62f105d, 5)
0180             BOOST_UUID_DETAIL_MD5_STEP(BOOST_UUID_DETAIL_MD5_G, d, a, b, c, BOOST_UUID_DETAIL_MD5_GET(10), 0x02441453, 9)
0181             BOOST_UUID_DETAIL_MD5_STEP(BOOST_UUID_DETAIL_MD5_G, c, d, a, b, BOOST_UUID_DETAIL_MD5_GET(15), 0xd8a1e681, 14)
0182             BOOST_UUID_DETAIL_MD5_STEP(BOOST_UUID_DETAIL_MD5_G, b, c, d, a, BOOST_UUID_DETAIL_MD5_GET(4), 0xe7d3fbc8, 20)
0183             BOOST_UUID_DETAIL_MD5_STEP(BOOST_UUID_DETAIL_MD5_G, a, b, c, d, BOOST_UUID_DETAIL_MD5_GET(9), 0x21e1cde6, 5)
0184             BOOST_UUID_DETAIL_MD5_STEP(BOOST_UUID_DETAIL_MD5_G, d, a, b, c, BOOST_UUID_DETAIL_MD5_GET(14), 0xc33707d6, 9)
0185             BOOST_UUID_DETAIL_MD5_STEP(BOOST_UUID_DETAIL_MD5_G, c, d, a, b, BOOST_UUID_DETAIL_MD5_GET(3), 0xf4d50d87, 14)
0186             BOOST_UUID_DETAIL_MD5_STEP(BOOST_UUID_DETAIL_MD5_G, b, c, d, a, BOOST_UUID_DETAIL_MD5_GET(8), 0x455a14ed, 20)
0187             BOOST_UUID_DETAIL_MD5_STEP(BOOST_UUID_DETAIL_MD5_G, a, b, c, d, BOOST_UUID_DETAIL_MD5_GET(13), 0xa9e3e905, 5)
0188             BOOST_UUID_DETAIL_MD5_STEP(BOOST_UUID_DETAIL_MD5_G, d, a, b, c, BOOST_UUID_DETAIL_MD5_GET(2), 0xfcefa3f8, 9)
0189             BOOST_UUID_DETAIL_MD5_STEP(BOOST_UUID_DETAIL_MD5_G, c, d, a, b, BOOST_UUID_DETAIL_MD5_GET(7), 0x676f02d9, 14)
0190             BOOST_UUID_DETAIL_MD5_STEP(BOOST_UUID_DETAIL_MD5_G, b, c, d, a, BOOST_UUID_DETAIL_MD5_GET(12), 0x8d2a4c8a, 20)
0191
0192     /* Round 3 */
0193             BOOST_UUID_DETAIL_MD5_STEP(BOOST_UUID_DETAIL_MD5_H, a, b, c, d, BOOST_UUID_DETAIL_MD5_GET(5), 0xfffa3942, 4)
0194             BOOST_UUID_DETAIL_MD5_STEP(BOOST_UUID_DETAIL_MD5_H2, d, a, b, c, BOOST_UUID_DETAIL_MD5_GET(8), 0x8771f681, 11)
0195             BOOST_UUID_DETAIL_MD5_STEP(BOOST_UUID_DETAIL_MD5_H, c, d, a, b, BOOST_UUID_DETAIL_MD5_GET(11), 0x6d9d6122, 16)
0196             BOOST_UUID_DETAIL_MD5_STEP(BOOST_UUID_DETAIL_MD5_H2, b, c, d, a, BOOST_UUID_DETAIL_MD5_GET(14), 0xfde5380c, 23)
0197             BOOST_UUID_DETAIL_MD5_STEP(BOOST_UUID_DETAIL_MD5_H, a, b, c, d, BOOST_UUID_DETAIL_MD5_GET(1), 0xa4beea44, 4)
0198             BOOST_UUID_DETAIL_MD5_STEP(BOOST_UUID_DETAIL_MD5_H2, d, a, b, c, BOOST_UUID_DETAIL_MD5_GET(4), 0x4bdecfa9, 11)
0199             BOOST_UUID_DETAIL_MD5_STEP(BOOST_UUID_DETAIL_MD5_H, c, d, a, b, BOOST_UUID_DETAIL_MD5_GET(7), 0xf6bb4b60, 16)
0200             BOOST_UUID_DETAIL_MD5_STEP(BOOST_UUID_DETAIL_MD5_H2, b, c, d, a, BOOST_UUID_DETAIL_MD5_GET(10), 0xbebfbc70, 23)
0201             BOOST_UUID_DETAIL_MD5_STEP(BOOST_UUID_DETAIL_MD5_H, a, b, c, d, BOOST_UUID_DETAIL_MD5_GET(13), 0x289b7ec6, 4)
0202             BOOST_UUID_DETAIL_MD5_STEP(BOOST_UUID_DETAIL_MD5_H2, d, a, b, c, BOOST_UUID_DETAIL_MD5_GET(0), 0xeaa127fa, 11)
0203             BOOST_UUID_DETAIL_MD5_STEP(BOOST_UUID_DETAIL_MD5_H, c, d, a, b, BOOST_UUID_DETAIL_MD5_GET(3), 0xd4ef3085, 16)
0204             BOOST_UUID_DETAIL_MD5_STEP(BOOST_UUID_DETAIL_MD5_H2, b, c, d, a, BOOST_UUID_DETAIL_MD5_GET(6), 0x04881d05, 23)
0205             BOOST_UUID_DETAIL_MD5_STEP(BOOST_UUID_DETAIL_MD5_H, a, b, c, d, BOOST_UUID_DETAIL_MD5_GET(9), 0xd9d4d039, 4)
0206             BOOST_UUID_DETAIL_MD5_STEP(BOOST_UUID_DETAIL_MD5_H2, d, a, b, c, BOOST_UUID_DETAIL_MD5_GET(12), 0xe6db99e5, 11)
0207             BOOST_UUID_DETAIL_MD5_STEP(BOOST_UUID_DETAIL_MD5_H, c, d, a, b, BOOST_UUID_DETAIL_MD5_GET(15), 0x1fa27cf8, 16)
0208             BOOST_UUID_DETAIL_MD5_STEP(BOOST_UUID_DETAIL_MD5_H2, b, c, d, a, BOOST_UUID_DETAIL_MD5_GET(2), 0xc4ac5665, 23)
0209
0210     /* Round 4 */
0211             BOOST_UUID_DETAIL_MD5_STEP(BOOST_UUID_DETAIL_MD5_I, a, b, c, d, BOOST_UUID_DETAIL_MD5_GET(0), 0xf4292244, 6)
0212             BOOST_UUID_DETAIL_MD5_STEP(BOOST_UUID_DETAIL_MD5_I, d, a, b, c, BOOST_UUID_DETAIL_MD5_GET(7), 0x432aff97, 10)
0213             BOOST_UUID_DETAIL_MD5_STEP(BOOST_UUID_DETAIL_MD5_I, c, d, a, b, BOOST_UUID_DETAIL_MD5_GET(14), 0xab9423a7, 15)
0214             BOOST_UUID_DETAIL_MD5_STEP(BOOST_UUID_DETAIL_MD5_I, b, c, d, a, BOOST_UUID_DETAIL_MD5_GET(5), 0xfc93a039, 21)
0215             BOOST_UUID_DETAIL_MD5_STEP(BOOST_UUID_DETAIL_MD5_I, a, b, c, d, BOOST_UUID_DETAIL_MD5_GET(12), 0x655b59c3, 6)
0216             BOOST_UUID_DETAIL_MD5_STEP(BOOST_UUID_DETAIL_MD5_I, d, a, b, c, BOOST_UUID_DETAIL_MD5_GET(3), 0x8f0ccc92, 10)
0217             BOOST_UUID_DETAIL_MD5_STEP(BOOST_UUID_DETAIL_MD5_I, c, d, a, b, BOOST_UUID_DETAIL_MD5_GET(10), 0xffeff47d, 15)
0218             BOOST_UUID_DETAIL_MD5_STEP(BOOST_UUID_DETAIL_MD5_I, b, c, d, a, BOOST_UUID_DETAIL_MD5_GET(1), 0x85845dd1, 21)
0219             BOOST_UUID_DETAIL_MD5_STEP(BOOST_UUID_DETAIL_MD5_I, a, b, c, d, BOOST_UUID_DETAIL_MD5_GET(8), 0x6fa87e4f, 6)
0220             BOOST_UUID_DETAIL_MD5_STEP(BOOST_UUID_DETAIL_MD5_I, d, a, b, c, BOOST_UUID_DETAIL_MD5_GET(15), 0xfe2ce6e0, 10)
0221             BOOST_UUID_DETAIL_MD5_STEP(BOOST_UUID_DETAIL_MD5_I, c, d, a, b, BOOST_UUID_DETAIL_MD5_GET(6), 0xa3014314, 15)
0222             BOOST_UUID_DETAIL_MD5_STEP(BOOST_UUID_DETAIL_MD5_I, b, c, d, a, BOOST_UUID_DETAIL_MD5_GET(13), 0x4e0811a1, 21)
0223             BOOST_UUID_DETAIL_MD5_STEP(BOOST_UUID_DETAIL_MD5_I, a, b, c, d, BOOST_UUID_DETAIL_MD5_GET(4), 0xf7537e82, 6)
0224             BOOST_UUID_DETAIL_MD5_STEP(BOOST_UUID_DETAIL_MD5_I, d, a, b, c, BOOST_UUID_DETAIL_MD5_GET(11), 0xbd3af235, 10)
0225             BOOST_UUID_DETAIL_MD5_STEP(BOOST_UUID_DETAIL_MD5_I, c, d, a, b, BOOST_UUID_DETAIL_MD5_GET(2), 0x2ad7d2bb, 15)
0226             BOOST_UUID_DETAIL_MD5_STEP(BOOST_UUID_DETAIL_MD5_I, b, c, d, a, BOOST_UUID_DETAIL_MD5_GET(9), 0xeb86d391, 21)
0227
0228             a += saved_a;
0229             b += saved_b;
0230             c += saved_c;
0231             d += saved_d;
0232
0233             ptr += 64;
0234         } while (size -= 64);
0235
0236         ctx->a = a;
0237         ctx->b = b;
0238         ctx->c = c;
0239         ctx->d = d;
0240
0241         return ptr;
0242     }
0243
0244     void MD5_Init(MD5_CTX *ctx)
0245     {
0246         ctx->a = 0x67452301;
0247         ctx->b = 0xefcdab89;
0248         ctx->c = 0x98badcfe;
0249         ctx->d = 0x10325476;
0250
0251         ctx->lo = 0;
0252         ctx->hi = 0;
0253     }
0254
0255     void MD5_Update(MD5_CTX *ctx, const void *data, unsigned long size)
0256     {
0257         MD5_u32plus saved_lo;
0258         unsigned long used, available;
0259
0260         saved_lo = ctx->lo;
0261         if ((ctx->lo = (saved_lo + size) & 0x1fffffff) < saved_lo)
0262             ctx->hi++;
0263         ctx->hi += size >> 29;
0264
0265         used = saved_lo & 0x3f;
0266
0267         if (used) {
0268             available = 64 - used;
0269
0270             if (size < available) {
0271                 memcpy(&ctx->buffer[used], data, size);
0272                 return;
0273             }
0274
0275             memcpy(&ctx->buffer[used], data, available);
0276             data = (const unsigned char *)data + available;
0277             size -= available;
0278             body(ctx, ctx->buffer, 64);
0279         }
0280
0281         if (size >= 64) {
0282             data = body(ctx, data, size & ~(unsigned long)0x3f);
0283             size &= 0x3f;
0284         }
0285
0286         memcpy(ctx->buffer, data, size);
0287     }
0288
0289     #define BOOST_UUID_DETAIL_MD5_OUT(dst, src) \
0290         (dst)[0] = (unsigned char)(src); \
0291         (dst)[1] = (unsigned char)((src) >> 8); \
0292         (dst)[2] = (unsigned char)((src) >> 16); \
0293         (dst)[3] = (unsigned char)((src) >> 24);
0294
0295     void MD5_Final(unsigned char *result, MD5_CTX *ctx)
0296     {
0297         unsigned long used, available;
0298
0299         used = ctx->lo & 0x3f;
0300
0301         ctx->buffer[used++] = 0x80;
0302
0303         available = 64 - used;
0304
0305         if (available < 8) {
0306             memset(&ctx->buffer[used], 0, available);
0307             body(ctx, ctx->buffer, 64);
0308             used = 0;
0309             available = 64;
0310         }
0311
0312         memset(&ctx->buffer[used], 0, available - 8);
0313
0314         ctx->lo <<= 3;
0315         BOOST_UUID_DETAIL_MD5_OUT(&ctx->buffer[56], ctx->lo)
0316         BOOST_UUID_DETAIL_MD5_OUT(&ctx->buffer[60], ctx->hi)
0317
0318         body(ctx, ctx->buffer, 64);
0319
0320         BOOST_UUID_DETAIL_MD5_OUT(&result[0], ctx->a)
0321         BOOST_UUID_DETAIL_MD5_OUT(&result[4], ctx->b)
0322         BOOST_UUID_DETAIL_MD5_OUT(&result[8], ctx->c)
0323         BOOST_UUID_DETAIL_MD5_OUT(&result[12], ctx->d)
0324
0325         memset(ctx, 0, sizeof(*ctx));
0326     }
0327
0328 #undef BOOST_UUID_DETAIL_MD5_OUT
0329 #undef BOOST_UUID_DETAIL_MD5_SET
0330 #undef BOOST_UUID_DETAIL_MD5_GET
0331 #undef BOOST_UUID_DETAIL_MD5_STEP
0332
0333     MD5_CTX ctx_;
0334 };
0335
0336
0337 } // detail
0338 } // uuids
0339 } // boost
0340
0341 #endif // BOOST_UUID_DETAIL_MD5_HPP_INCLUDED