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author | Lars Knoll <lars.knoll@nokia.com> | 2009-03-23 09:18:55 (GMT) |
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committer | Simon Hausmann <simon.hausmann@nokia.com> | 2009-03-23 09:18:55 (GMT) |
commit | e5fcad302d86d316390c6b0f62759a067313e8a9 (patch) | |
tree | c2afbf6f1066b6ce261f14341cf6d310e5595bc1 /src/3rdparty/sha1 | |
download | Qt-e5fcad302d86d316390c6b0f62759a067313e8a9.zip Qt-e5fcad302d86d316390c6b0f62759a067313e8a9.tar.gz Qt-e5fcad302d86d316390c6b0f62759a067313e8a9.tar.bz2 |
Long live Qt 4.5!
Diffstat (limited to 'src/3rdparty/sha1')
-rw-r--r-- | src/3rdparty/sha1/sha1.cpp | 263 |
1 files changed, 263 insertions, 0 deletions
diff --git a/src/3rdparty/sha1/sha1.cpp b/src/3rdparty/sha1/sha1.cpp new file mode 100644 index 0000000..d270c60 --- /dev/null +++ b/src/3rdparty/sha1/sha1.cpp @@ -0,0 +1,263 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +/* + Based on the public domain implementation of the SHA-1 algorithm + Copyright (C) Dominik Reichl <dominik.reichl@t-online.de> +*/ +#include <QtCore/qendian.h> + +#ifdef Q_CC_MSVC +# include <stdlib.h> +#endif + +QT_BEGIN_NAMESPACE + +// Test Vectors (from FIPS PUB 180-1) +// +// SHA1("abc") = +// A9993E36 4706816A BA3E2571 7850C26C 9CD0D89D +// +// SHA1("abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq") = +// 84983E44 1C3BD26E BAAE4AA1 F95129E5 E54670F1 +// +// SHA1(A million repetitions of "a") = +// 34AA973C D4C4DAA4 F61EEB2B DBAD2731 6534016F +// + + +// #define or #undef this, if you want the to wipe all +// temporary variables after processing +#define SHA1_WIPE_VARIABLES + + +struct Sha1State +{ + quint32 h0; + quint32 h1; + quint32 h2; + quint32 h3; + quint32 h4; + + quint64 messageSize; + unsigned char buffer[64]; +}; + + +typedef union +{ + quint8 bytes[64]; + quint32 words[16]; +} Sha1Chunk; + +static inline quint32 rol32(quint32 value, unsigned int shift) +{ +#ifdef Q_CC_MSVC + return _rotl(value, shift); +#else + return ((value << shift) | (value >> (32 - shift))); +#endif +} + +static inline quint32 sha1Word(Sha1Chunk *chunk, const uint position) +{ + return (chunk->words[position & 0xf] = rol32( chunk->words[(position+13) & 0xf] + ^ chunk->words[(position+ 8) & 0xf] + ^ chunk->words[(position+ 2) & 0xf] + ^ chunk->words[(position) & 0xf], 1)); +} + +static inline void sha1Round0(Sha1Chunk *chunk, const uint position, + quint32 &v, quint32 &w, quint32 &x, quint32 &y, quint32 &z) +{ + z += ((( w & (x ^ y)) ^ y) + chunk->words[position] + 0x5A827999 + rol32(v, 5)); + w = rol32(w, 30); +} + +static inline void sha1Round1(Sha1Chunk *chunk, const uint position, + quint32 &v, quint32 &w, quint32 &x, quint32 &y, quint32 &z) +{ + z += ((( w & (x ^ y)) ^ y) + sha1Word(chunk,position) + 0x5A827999 + rol32(v, 5)); + w = rol32(w, 30); +} + +static inline void sha1Round2(Sha1Chunk *chunk, const uint position, + quint32 &v, quint32 &w, quint32 &x, quint32 &y, quint32 &z) +{ + z += (( w ^ x ^ y) + sha1Word(chunk, position) + 0x6ED9EBA1 + rol32(v, 5)); + w = rol32(w, 30); +} + +static inline void sha1Round3(Sha1Chunk *chunk, const uint position, + quint32 &v, quint32 &w, quint32 &x, quint32 &y, quint32 &z) +{ + z += (((( w | x) & y) | (w & x)) + sha1Word(chunk, position) + 0x8F1BBCDC + rol32(v, 5)); + w = rol32(w, 30); +} + +static inline void sha1Round4(Sha1Chunk *chunk, const uint position, + quint32 &v, quint32 &w, quint32 &x, quint32 &y, quint32 &z) +{ + z += ((w ^ x ^ y) + sha1Word(chunk, position) + 0xCA62C1D6 + rol32(v, 5)); + w = rol32(w, 30); +} + +static inline void sha1ProcessChunk(Sha1State *state, const unsigned char *buffer) +{ + // Copy state[] to working vars + quint32 a = state->h0; + quint32 b = state->h1; + quint32 c = state->h2; + quint32 d = state->h3; + quint32 e = state->h4; + + quint8 chunkBuffer[64]; + memcpy(chunkBuffer, buffer, 64); + + Sha1Chunk *chunk = reinterpret_cast<Sha1Chunk*>(&chunkBuffer); + + for (int i = 0; i < 16; ++i) + chunk->words[i] = qFromBigEndian(chunk->words[i]); + + sha1Round0(chunk, 0, a,b,c,d,e); sha1Round0(chunk, 1, e,a,b,c,d); sha1Round0(chunk, 2, d,e,a,b,c); sha1Round0(chunk, 3, c,d,e,a,b); + sha1Round0(chunk, 4, b,c,d,e,a); sha1Round0(chunk, 5, a,b,c,d,e); sha1Round0(chunk, 6, e,a,b,c,d); sha1Round0(chunk, 7, d,e,a,b,c); + sha1Round0(chunk, 8, c,d,e,a,b); sha1Round0(chunk, 9, b,c,d,e,a); sha1Round0(chunk, 10, a,b,c,d,e); sha1Round0(chunk, 11, e,a,b,c,d); + sha1Round0(chunk, 12, d,e,a,b,c); sha1Round0(chunk, 13, c,d,e,a,b); sha1Round0(chunk, 14, b,c,d,e,a); sha1Round0(chunk, 15, a,b,c,d,e); + sha1Round1(chunk, 16, e,a,b,c,d); sha1Round1(chunk, 17, d,e,a,b,c); sha1Round1(chunk, 18, c,d,e,a,b); sha1Round1(chunk, 19, b,c,d,e,a); + sha1Round2(chunk, 20, a,b,c,d,e); sha1Round2(chunk, 21, e,a,b,c,d); sha1Round2(chunk, 22, d,e,a,b,c); sha1Round2(chunk, 23, c,d,e,a,b); + sha1Round2(chunk, 24, b,c,d,e,a); sha1Round2(chunk, 25, a,b,c,d,e); sha1Round2(chunk, 26, e,a,b,c,d); sha1Round2(chunk, 27, d,e,a,b,c); + sha1Round2(chunk, 28, c,d,e,a,b); sha1Round2(chunk, 29, b,c,d,e,a); sha1Round2(chunk, 30, a,b,c,d,e); sha1Round2(chunk, 31, e,a,b,c,d); + sha1Round2(chunk, 32, d,e,a,b,c); sha1Round2(chunk, 33, c,d,e,a,b); sha1Round2(chunk, 34, b,c,d,e,a); sha1Round2(chunk, 35, a,b,c,d,e); + sha1Round2(chunk, 36, e,a,b,c,d); sha1Round2(chunk, 37, d,e,a,b,c); sha1Round2(chunk, 38, c,d,e,a,b); sha1Round2(chunk, 39, b,c,d,e,a); + sha1Round3(chunk, 40, a,b,c,d,e); sha1Round3(chunk, 41, e,a,b,c,d); sha1Round3(chunk, 42, d,e,a,b,c); sha1Round3(chunk, 43, c,d,e,a,b); + sha1Round3(chunk, 44, b,c,d,e,a); sha1Round3(chunk, 45, a,b,c,d,e); sha1Round3(chunk, 46, e,a,b,c,d); sha1Round3(chunk, 47, d,e,a,b,c); + sha1Round3(chunk, 48, c,d,e,a,b); sha1Round3(chunk, 49, b,c,d,e,a); sha1Round3(chunk, 50, a,b,c,d,e); sha1Round3(chunk, 51, e,a,b,c,d); + sha1Round3(chunk, 52, d,e,a,b,c); sha1Round3(chunk, 53, c,d,e,a,b); sha1Round3(chunk, 54, b,c,d,e,a); sha1Round3(chunk, 55, a,b,c,d,e); + sha1Round3(chunk, 56, e,a,b,c,d); sha1Round3(chunk, 57, d,e,a,b,c); sha1Round3(chunk, 58, c,d,e,a,b); sha1Round3(chunk, 59, b,c,d,e,a); + sha1Round4(chunk, 60, a,b,c,d,e); sha1Round4(chunk, 61, e,a,b,c,d); sha1Round4(chunk, 62, d,e,a,b,c); sha1Round4(chunk, 63, c,d,e,a,b); + sha1Round4(chunk, 64, b,c,d,e,a); sha1Round4(chunk, 65, a,b,c,d,e); sha1Round4(chunk, 66, e,a,b,c,d); sha1Round4(chunk, 67, d,e,a,b,c); + sha1Round4(chunk, 68, c,d,e,a,b); sha1Round4(chunk, 69, b,c,d,e,a); sha1Round4(chunk, 70, a,b,c,d,e); sha1Round4(chunk, 71, e,a,b,c,d); + sha1Round4(chunk, 72, d,e,a,b,c); sha1Round4(chunk, 73, c,d,e,a,b); sha1Round4(chunk, 74, b,c,d,e,a); sha1Round4(chunk, 75, a,b,c,d,e); + sha1Round4(chunk, 76, e,a,b,c,d); sha1Round4(chunk, 77, d,e,a,b,c); sha1Round4(chunk, 78, c,d,e,a,b); sha1Round4(chunk, 79, b,c,d,e,a); + + // Add the working vars back into state + state->h0 += a; + state->h1 += b; + state->h2 += c; + state->h3 += d; + state->h4 += e; + + // Wipe variables +#ifdef SHA1_WIPE_VARIABLES + a = b = c = d = e = 0; + memset(chunkBuffer, 0, 64); +#endif +} + +static inline void sha1InitState(Sha1State *state) +{ + state->h0 = 0x67452301; + state->h1 = 0xEFCDAB89; + state->h2 = 0x98BADCFE; + state->h3 = 0x10325476; + state->h4 = 0xC3D2E1F0; + + state->messageSize = 0; +} + +static inline void sha1Update(Sha1State *state, const unsigned char *data, qint64 len) +{ + quint32 rest = static_cast<quint32>(state->messageSize & Q_UINT64_C(63)); + + quint64 availableData = static_cast<quint64>(len) + static_cast<quint64>(rest); + state->messageSize += len; + + if (availableData < Q_UINT64_C(64)) { + memcpy(&state->buffer[rest], &data[0], len); + + } else { + qint64 i = static_cast<qint64>(64 - rest); + memcpy(&state->buffer[rest], &data[0], static_cast<qint32>(i)); + sha1ProcessChunk(state, state->buffer); + + qint64 lastI = len - ((len + rest) & Q_INT64_C(63)); + for( ; i < lastI; i += 64) + sha1ProcessChunk(state, &data[i]); + + memcpy(&state->buffer[0], &data[i], len - i); + } +} + +static inline void sha1FinalizeState(Sha1State *state) +{ + quint64 messageSize = state->messageSize; + unsigned char sizeInBits[8]; + qToBigEndian(messageSize << 3, sizeInBits); + + sha1Update(state, (const unsigned char *)"\200", 1); + + unsigned char zero[64]; + memset(zero, 0, 64); + if (static_cast<int>(messageSize & 63) > 56 - 1) { + sha1Update(state, zero, 64 - 1 - static_cast<int>(messageSize & 63)); + sha1Update(state, zero, 64 - 8); + } else { + sha1Update(state, zero, 64 - 1 - 8 - static_cast<int>(messageSize & 63)); + } + + sha1Update(state, sizeInBits, 8); +#ifdef SHA1_WIPE_VARIABLES + memset(state->buffer, 0, 64); + memset(zero, 0, 64); + state->messageSize = 0; +#endif +} + +static inline void sha1ToHash(Sha1State *state, unsigned char* buffer) +{ + qToBigEndian(state->h0, buffer); + qToBigEndian(state->h1, buffer + 4); + qToBigEndian(state->h2, buffer + 8); + qToBigEndian(state->h3, buffer + 12); + qToBigEndian(state->h4, buffer + 16); +} + +QT_END_NAMESPACE |