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authorRemko Tronçon <git@el-tramo.be>2013-04-26 20:07:58 (GMT)
committerRemko Tronçon <git@el-tramo.be>2013-04-27 11:02:06 (GMT)
commit5d8c328e236f57d7390d32f9ea7bd17a31e1e740 (patch)
treebebe606707a6b835fe3fd15e694d629b5e420947 /Swiften/StringCodecs/MD5.cpp
parentaa131405927fc7f597ed06aff71abb0a30b59926 (diff)
downloadswift-5d8c328e236f57d7390d32f9ea7bd17a31e1e740.zip
swift-5d8c328e236f57d7390d32f9ea7bd17a31e1e740.tar.bz2
Removing third-party hash implementations.
Using library/platform implementation instead. Change-Id: I2457c2dad80e6fdda023a7f31c3906ff10fe09ed
Diffstat (limited to 'Swiften/StringCodecs/MD5.cpp')
-rw-r--r--Swiften/StringCodecs/MD5.cpp413
1 files changed, 0 insertions, 413 deletions
diff --git a/Swiften/StringCodecs/MD5.cpp b/Swiften/StringCodecs/MD5.cpp
deleted file mode 100644
index ffed37b..0000000
--- a/Swiften/StringCodecs/MD5.cpp
+++ /dev/null
@@ -1,413 +0,0 @@
-/*
- * Copyright (c) 2010-2012 Remko Tronçon
- * Licensed under the GNU General Public License v3.
- * See Documentation/Licenses/GPLv3.txt for more information.
- */
-
-/*
- * This implementation is shamelessly copied from L. Peter Deutsch's
- * implementation, and altered to use our own defines and datastructures.
- * Original license below.
- *//*
- Copyright (C) 1999, 2002 Aladdin Enterprises. All rights reserved.
-
- This software is provided 'as-is', without any express or implied
- warranty. In no event will the authors be held liable for any damages
- arising from the use of this software.
-
- Permission is granted to anyone to use this software for any purpose,
- including commercial applications, and to alter it and redistribute it
- freely, subject to the following restrictions:
-
- 1. The origin of this software must not be misrepresented; you must not
- claim that you wrote the original software. If you use this software
- in a product, an acknowledgment in the product documentation would be
- appreciated but is not required.
- 2. Altered source versions must be plainly marked as such, and must not be
- misrepresented as being the original software.
- 3. This notice may not be removed or altered from any source distribution.
-
- L. Peter Deutsch
- ghost@aladdin.com
- */
-
-#pragma GCC diagnostic ignored "-Wold-style-cast"
-#pragma clang diagnostic ignored "-Wconversion"
-#pragma clang diagnostic ignored "-Wcast-align"
-#pragma clang diagnostic ignored "-Wmissing-prototypes"
-
-#include <Swiften/StringCodecs/MD5.h>
-
-#include <cassert>
-#include <string.h>
-
-#include <Swiften/Base/ByteArray.h>
-#include <Swiften/Base/Platform.h>
-
-#ifdef SWIFTEN_PLATFORM_WIN32
-#include <Swiften/Base/WindowsRegistry.h>
-#endif
-
-namespace Swift {
-
-typedef unsigned char md5_byte_t; /* 8-bit byte */
-typedef unsigned int md5_word_t; /* 32-bit word */
-
-/* Define the state of the MD5 Algorithm. */
-typedef struct md5_state_s {
- md5_word_t count[2]; /* message length in bits, lsw first */
- md5_word_t abcd[4]; /* digest buffer */
- md5_byte_t buf[64]; /* accumulate block */
-} md5_state_t;
-
-#define T_MASK ((md5_word_t)~0)
-#define T1 /* 0xd76aa478 */ (T_MASK ^ 0x28955b87)
-#define T2 /* 0xe8c7b756 */ (T_MASK ^ 0x173848a9)
-#define T3 0x242070db
-#define T4 /* 0xc1bdceee */ (T_MASK ^ 0x3e423111)
-#define T5 /* 0xf57c0faf */ (T_MASK ^ 0x0a83f050)
-#define T6 0x4787c62a
-#define T7 /* 0xa8304613 */ (T_MASK ^ 0x57cfb9ec)
-#define T8 /* 0xfd469501 */ (T_MASK ^ 0x02b96afe)
-#define T9 0x698098d8
-#define T10 /* 0x8b44f7af */ (T_MASK ^ 0x74bb0850)
-#define T11 /* 0xffff5bb1 */ (T_MASK ^ 0x0000a44e)
-#define T12 /* 0x895cd7be */ (T_MASK ^ 0x76a32841)
-#define T13 0x6b901122
-#define T14 /* 0xfd987193 */ (T_MASK ^ 0x02678e6c)
-#define T15 /* 0xa679438e */ (T_MASK ^ 0x5986bc71)
-#define T16 0x49b40821
-#define T17 /* 0xf61e2562 */ (T_MASK ^ 0x09e1da9d)
-#define T18 /* 0xc040b340 */ (T_MASK ^ 0x3fbf4cbf)
-#define T19 0x265e5a51
-#define T20 /* 0xe9b6c7aa */ (T_MASK ^ 0x16493855)
-#define T21 /* 0xd62f105d */ (T_MASK ^ 0x29d0efa2)
-#define T22 0x02441453
-#define T23 /* 0xd8a1e681 */ (T_MASK ^ 0x275e197e)
-#define T24 /* 0xe7d3fbc8 */ (T_MASK ^ 0x182c0437)
-#define T25 0x21e1cde6
-#define T26 /* 0xc33707d6 */ (T_MASK ^ 0x3cc8f829)
-#define T27 /* 0xf4d50d87 */ (T_MASK ^ 0x0b2af278)
-#define T28 0x455a14ed
-#define T29 /* 0xa9e3e905 */ (T_MASK ^ 0x561c16fa)
-#define T30 /* 0xfcefa3f8 */ (T_MASK ^ 0x03105c07)
-#define T31 0x676f02d9
-#define T32 /* 0x8d2a4c8a */ (T_MASK ^ 0x72d5b375)
-#define T33 /* 0xfffa3942 */ (T_MASK ^ 0x0005c6bd)
-#define T34 /* 0x8771f681 */ (T_MASK ^ 0x788e097e)
-#define T35 0x6d9d6122
-#define T36 /* 0xfde5380c */ (T_MASK ^ 0x021ac7f3)
-#define T37 /* 0xa4beea44 */ (T_MASK ^ 0x5b4115bb)
-#define T38 0x4bdecfa9
-#define T39 /* 0xf6bb4b60 */ (T_MASK ^ 0x0944b49f)
-#define T40 /* 0xbebfbc70 */ (T_MASK ^ 0x4140438f)
-#define T41 0x289b7ec6
-#define T42 /* 0xeaa127fa */ (T_MASK ^ 0x155ed805)
-#define T43 /* 0xd4ef3085 */ (T_MASK ^ 0x2b10cf7a)
-#define T44 0x04881d05
-#define T45 /* 0xd9d4d039 */ (T_MASK ^ 0x262b2fc6)
-#define T46 /* 0xe6db99e5 */ (T_MASK ^ 0x1924661a)
-#define T47 0x1fa27cf8
-#define T48 /* 0xc4ac5665 */ (T_MASK ^ 0x3b53a99a)
-#define T49 /* 0xf4292244 */ (T_MASK ^ 0x0bd6ddbb)
-#define T50 0x432aff97
-#define T51 /* 0xab9423a7 */ (T_MASK ^ 0x546bdc58)
-#define T52 /* 0xfc93a039 */ (T_MASK ^ 0x036c5fc6)
-#define T53 0x655b59c3
-#define T54 /* 0x8f0ccc92 */ (T_MASK ^ 0x70f3336d)
-#define T55 /* 0xffeff47d */ (T_MASK ^ 0x00100b82)
-#define T56 /* 0x85845dd1 */ (T_MASK ^ 0x7a7ba22e)
-#define T57 0x6fa87e4f
-#define T58 /* 0xfe2ce6e0 */ (T_MASK ^ 0x01d3191f)
-#define T59 /* 0xa3014314 */ (T_MASK ^ 0x5cfebceb)
-#define T60 0x4e0811a1
-#define T61 /* 0xf7537e82 */ (T_MASK ^ 0x08ac817d)
-#define T62 /* 0xbd3af235 */ (T_MASK ^ 0x42c50dca)
-#define T63 0x2ad7d2bb
-#define T64 /* 0xeb86d391 */ (T_MASK ^ 0x14792c6e)
-
-
-static void md5_process(md5_state_t *pms, const md5_byte_t *data /*[64]*/) {
- md5_word_t
- a = pms->abcd[0], b = pms->abcd[1],
- c = pms->abcd[2], d = pms->abcd[3];
- md5_word_t t;
-#ifdef SWIFTEN_LITTLE_ENDIAN
- /* Define storage for little-endian or both types of CPUs. */
- md5_word_t xbuf[16];
- const md5_word_t *X;
-#else
- /* Define storage only for big-endian CPUs. */
- md5_word_t X[16];
-#endif
-
- {
-#ifdef SWIFTEN_LITTLE_ENDIAN
- {
- /*
- * On little-endian machines, we can process properly aligned
- * data without copying it.
- */
- if (!((data - (const md5_byte_t *)0) & 3)) {
- /* data are properly aligned */
- X = (const md5_word_t *)data;
- } else {
- /* not aligned */
- memcpy(xbuf, data, 64);
- X = xbuf;
- }
- }
-#else
- {
- /*
- * On big-endian machines, we must arrange the bytes in the
- * right order.
- */
- const md5_byte_t *xp = data;
- int i;
-
- for (i = 0; i < 16; ++i, xp += 4)
- X[i] = xp[0] + (xp[1] << 8) + (xp[2] << 16) + (xp[3] << 24);
- }
-#endif
- }
-
-#define ROTATE_LEFT(x, n) (((x) << (n)) | ((x) >> (32 - (n))))
-
- /* Round 1. */
- /* Let [abcd k s i] denote the operation
- a = b + ((a + F(b,c,d) + X[k] + T[i]) <<< s). */
-#define F(x, y, z) (((x) & (y)) | (~(x) & (z)))
-#define SET(a, b, c, d, k, s, Ti)\
- t = a + F(b,c,d) + X[k] + Ti;\
- a = ROTATE_LEFT(t, s) + b
- /* Do the following 16 operations. */
- SET(a, b, c, d, 0, 7, T1);
- SET(d, a, b, c, 1, 12, T2);
- SET(c, d, a, b, 2, 17, T3);
- SET(b, c, d, a, 3, 22, T4);
- SET(a, b, c, d, 4, 7, T5);
- SET(d, a, b, c, 5, 12, T6);
- SET(c, d, a, b, 6, 17, T7);
- SET(b, c, d, a, 7, 22, T8);
- SET(a, b, c, d, 8, 7, T9);
- SET(d, a, b, c, 9, 12, T10);
- SET(c, d, a, b, 10, 17, T11);
- SET(b, c, d, a, 11, 22, T12);
- SET(a, b, c, d, 12, 7, T13);
- SET(d, a, b, c, 13, 12, T14);
- SET(c, d, a, b, 14, 17, T15);
- SET(b, c, d, a, 15, 22, T16);
-#undef SET
-
- /* Round 2. */
- /* Let [abcd k s i] denote the operation
- a = b + ((a + G(b,c,d) + X[k] + T[i]) <<< s). */
-#define G(x, y, z) (((x) & (z)) | ((y) & ~(z)))
-#define SET(a, b, c, d, k, s, Ti)\
- t = a + G(b,c,d) + X[k] + Ti;\
- a = ROTATE_LEFT(t, s) + b
- /* Do the following 16 operations. */
- SET(a, b, c, d, 1, 5, T17);
- SET(d, a, b, c, 6, 9, T18);
- SET(c, d, a, b, 11, 14, T19);
- SET(b, c, d, a, 0, 20, T20);
- SET(a, b, c, d, 5, 5, T21);
- SET(d, a, b, c, 10, 9, T22);
- SET(c, d, a, b, 15, 14, T23);
- SET(b, c, d, a, 4, 20, T24);
- SET(a, b, c, d, 9, 5, T25);
- SET(d, a, b, c, 14, 9, T26);
- SET(c, d, a, b, 3, 14, T27);
- SET(b, c, d, a, 8, 20, T28);
- SET(a, b, c, d, 13, 5, T29);
- SET(d, a, b, c, 2, 9, T30);
- SET(c, d, a, b, 7, 14, T31);
- SET(b, c, d, a, 12, 20, T32);
-#undef SET
-
- /* Round 3. */
- /* Let [abcd k s t] denote the operation
- a = b + ((a + H(b,c,d) + X[k] + T[i]) <<< s). */
-#define H(x, y, z) ((x) ^ (y) ^ (z))
-#define SET(a, b, c, d, k, s, Ti)\
- t = a + H(b,c,d) + X[k] + Ti;\
- a = ROTATE_LEFT(t, s) + b
- /* Do the following 16 operations. */
- SET(a, b, c, d, 5, 4, T33);
- SET(d, a, b, c, 8, 11, T34);
- SET(c, d, a, b, 11, 16, T35);
- SET(b, c, d, a, 14, 23, T36);
- SET(a, b, c, d, 1, 4, T37);
- SET(d, a, b, c, 4, 11, T38);
- SET(c, d, a, b, 7, 16, T39);
- SET(b, c, d, a, 10, 23, T40);
- SET(a, b, c, d, 13, 4, T41);
- SET(d, a, b, c, 0, 11, T42);
- SET(c, d, a, b, 3, 16, T43);
- SET(b, c, d, a, 6, 23, T44);
- SET(a, b, c, d, 9, 4, T45);
- SET(d, a, b, c, 12, 11, T46);
- SET(c, d, a, b, 15, 16, T47);
- SET(b, c, d, a, 2, 23, T48);
-#undef SET
-
- /* Round 4. */
- /* Let [abcd k s t] denote the operation
- a = b + ((a + I(b,c,d) + X[k] + T[i]) <<< s). */
-#define I(x, y, z) ((y) ^ ((x) | ~(z)))
-#define SET(a, b, c, d, k, s, Ti)\
- t = a + I(b,c,d) + X[k] + Ti;\
- a = ROTATE_LEFT(t, s) + b
- /* Do the following 16 operations. */
- SET(a, b, c, d, 0, 6, T49);
- SET(d, a, b, c, 7, 10, T50);
- SET(c, d, a, b, 14, 15, T51);
- SET(b, c, d, a, 5, 21, T52);
- SET(a, b, c, d, 12, 6, T53);
- SET(d, a, b, c, 3, 10, T54);
- SET(c, d, a, b, 10, 15, T55);
- SET(b, c, d, a, 1, 21, T56);
- SET(a, b, c, d, 8, 6, T57);
- SET(d, a, b, c, 15, 10, T58);
- SET(c, d, a, b, 6, 15, T59);
- SET(b, c, d, a, 13, 21, T60);
- SET(a, b, c, d, 4, 6, T61);
- SET(d, a, b, c, 11, 10, T62);
- SET(c, d, a, b, 2, 15, T63);
- SET(b, c, d, a, 9, 21, T64);
-#undef SET
-
- /* Then perform the following additions. (That is increment each
- of the four registers by the value it had before this block
- was started.) */
- pms->abcd[0] += a;
- pms->abcd[1] += b;
- pms->abcd[2] += c;
- pms->abcd[3] += d;
-}
-
-void
-md5_init(md5_state_t *pms)
-{
- pms->count[0] = pms->count[1] = 0;
- pms->abcd[0] = 0x67452301;
- pms->abcd[1] = /*0xefcdab89*/ T_MASK ^ 0x10325476;
- pms->abcd[2] = /*0x98badcfe*/ T_MASK ^ 0x67452301;
- pms->abcd[3] = 0x10325476;
-}
-
-void
-md5_append(md5_state_t *pms, const md5_byte_t *data, int nbytes)
-{
- const md5_byte_t *p = data;
- int left = nbytes;
- int offset = (pms->count[0] >> 3) & 63;
- md5_word_t nbits = (md5_word_t)(nbytes << 3);
-
- if (nbytes <= 0)
- return;
-
- /* Update the message length. */
- pms->count[1] += nbytes >> 29;
- pms->count[0] += nbits;
- if (pms->count[0] < nbits)
- pms->count[1]++;
-
- /* Process an initial partial block. */
- if (offset) {
- int copy = (offset + nbytes > 64 ? 64 - offset : nbytes);
-
- memcpy(pms->buf + offset, p, copy);
- if (offset + copy < 64)
- return;
- p += copy;
- left -= copy;
- md5_process(pms, pms->buf);
- }
-
- /* Process full blocks. */
- for (; left >= 64; p += 64, left -= 64)
- md5_process(pms, p);
-
- /* Process a final partial block. */
- if (left)
- memcpy(pms->buf, p, left);
-}
-
-void
-md5_finish(md5_state_t *pms, md5_byte_t digest[16])
-{
- static const md5_byte_t pad[64] = {
- 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
- };
- md5_byte_t data[8];
- int i;
-
- /* Save the length before padding. */
- for (i = 0; i < 8; ++i)
- data[i] = (md5_byte_t)(pms->count[i >> 2] >> ((i & 3) << 3));
- /* Pad to 56 bytes mod 64. */
- md5_append(pms, pad, ((55 - (pms->count[0] >> 3)) & 63) + 1);
- /* Append the length. */
- md5_append(pms, data, 8);
- for (i = 0; i < 16; ++i)
- digest[i] = (md5_byte_t)(pms->abcd[i >> 2] >> ((i & 3) << 3));
-}
-
-namespace {
- template<typename SourceType>
- ByteArray getMD5Hash(const SourceType& data) {
- ByteArray digest;
- digest.resize(16);
-
- md5_state_t state;
- md5_init(&state);
- md5_append(&state, reinterpret_cast<const md5_byte_t*>(vecptr(data)), data.size());
- md5_finish(&state, reinterpret_cast<md5_byte_t*>(vecptr(digest)));
-
- return digest;
- }
-}
-
-MD5::MD5() {
- state = new md5_state_t;
- md5_init(state);
-}
-
-MD5::~MD5() {
- delete state;
-}
-
-MD5& MD5::update(const std::vector<unsigned char>& input) {
- md5_append(state, reinterpret_cast<const md5_byte_t*>(vecptr(input)), input.size());
- return *this;
-}
-
-std::vector<unsigned char> MD5::getHash() {
- ByteArray digest;
- digest.resize(16);
- md5_finish(state, reinterpret_cast<md5_byte_t*>(vecptr(digest)));
- return digest;
-}
-
-ByteArray MD5::getHash(const ByteArray& data) {
- return getMD5Hash(data);
-}
-
-ByteArray MD5::getHash(const SafeByteArray& data) {
- return getMD5Hash(data);
-}
-
-bool MD5::isAllowedForCrypto() {
-#ifdef SWIFTEN_PLATFORM_WIN32
- return !WindowsRegistry::isFIPSEnabled();
-#else
- return true;
-#endif
-}
-
-}