From cb4a46e7fbe62d788e66ed6121c717a2d22a4d7c Mon Sep 17 00:00:00 2001 From: watcherhd Date: Thu, 21 Apr 2011 14:14:52 +0000 Subject: svn.miranda.im is moving to a new home! git-svn-id: http://miranda-plugins.googlecode.com/svn/trunk@7 e753b5eb-9565-29b2-b5c5-2cc6f99dfbcb --- cryptopp/crypto/md5mac.cpp | 166 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 166 insertions(+) create mode 100644 cryptopp/crypto/md5mac.cpp (limited to 'cryptopp/crypto/md5mac.cpp') diff --git a/cryptopp/crypto/md5mac.cpp b/cryptopp/crypto/md5mac.cpp new file mode 100644 index 0000000..f5c90c3 --- /dev/null +++ b/cryptopp/crypto/md5mac.cpp @@ -0,0 +1,166 @@ +// md5mac.cpp - modified by Wei Dai from Colin Plumb's public domain md5.c +// any modifications are placed in the public domain + +#include "pch.h" +#include "md5mac.h" +#include "misc.h" + +NAMESPACE_BEGIN(CryptoPP) + +const word32 MD5MAC_Base::T[12] = + { 0xac45ef97,0xcd430f29,0x551b7e45,0x3411801c, + 0x96ce77b1,0x7c8e722e,0x0aab5a5f,0x18be4336, + 0x21b4219d,0x4db987bc,0xbd279da2,0xc3d75bc7 }; + +void MD5MAC_Base::UncheckedSetKey(const byte *userKey, unsigned int keylength, const NameValuePairs &) +{ + const word32 zeros[4] = {0,0,0,0}; + + for (unsigned i=0, j; i<3; i++) + { + m_key[4*i+0] = 0x67452301L; + m_key[4*i+1] = 0xefcdab89L; + m_key[4*i+2] = 0x98badcfeL; + m_key[4*i+3] = 0x10325476L; + + memcpy(m_data, userKey, KEYLENGTH); + CorrectEndianess(m_data, m_data, KEYLENGTH); + for (j=0; j<3; j++) + memcpy(m_data+4+4*j, T+((i+j)%3)*4, 16); + Transform(m_key+4*i, m_data, zeros); + + for (j=0; j<3; j++) + memcpy(m_data+4*j, T+((i+j)%3)*4, 16); + memcpy(m_data+12, userKey, KEYLENGTH); + CorrectEndianess(m_data+12, m_data+12, KEYLENGTH); + Transform(m_key+4*i, m_data, zeros); + } + + Init(); +} + +void MD5MAC_Base::Init() +{ + m_digest[0] = m_key[0]; + m_digest[1] = m_key[1]; + m_digest[2] = m_key[2]; + m_digest[3] = m_key[3]; +} + +void MD5MAC_Base::TruncatedFinal(byte *hash, size_t size) +{ + ThrowIfInvalidTruncatedSize(size); + + PadLastBlock(56); + CorrectEndianess(m_data, m_data, 56); + + m_data[14] = GetBitCountLo(); + m_data[15] = GetBitCountHi(); + + Transform(m_digest, m_data, m_key+4); + + unsigned i; + for (i=0; i<4; i++) + m_data[i] = m_key[8+i]; + for (i=0; i<12; i++) + m_data[i+4] = T[i] ^ m_key[8+i%4]; + Transform(m_digest, m_data, m_key+4); + + CorrectEndianess(m_digest, m_digest, DIGESTSIZE); + memcpy(hash, m_digest, size); + + Restart(); // reinit for next use +} + +void MD5MAC_Base::Transform(word32 *digest, const word32 *in, const word32 *key) +{ +#define F1(x, y, z) ((z ^ (x & (y ^ z))) + key[0]) +#define F2(x, y, z) ((y ^ (z & (x ^ y))) + key[1]) +#define F3(x, y, z) ((x ^ y ^ z) + key[2]) +#define F4(x, y, z) ((y ^ (x | ~z)) + key[3]) + +#define MD5STEP(f, w, x, y, z, data, s) \ + w = rotlFixed(w + f(x, y, z) + data, s) + x + + word32 a, b, c, d; + + a=digest[0]; + b=digest[1]; + c=digest[2]; + d=digest[3]; + + MD5STEP(F1, a, b, c, d, in[0] + 0xd76aa478, 7); + MD5STEP(F1, d, a, b, c, in[1] + 0xe8c7b756, 12); + MD5STEP(F1, c, d, a, b, in[2] + 0x242070db, 17); + MD5STEP(F1, b, c, d, a, in[3] + 0xc1bdceee, 22); + MD5STEP(F1, a, b, c, d, in[4] + 0xf57c0faf, 7); + MD5STEP(F1, d, a, b, c, in[5] + 0x4787c62a, 12); + MD5STEP(F1, c, d, a, b, in[6] + 0xa8304613, 17); + MD5STEP(F1, b, c, d, a, in[7] + 0xfd469501, 22); + MD5STEP(F1, a, b, c, d, in[8] + 0x698098d8, 7); + MD5STEP(F1, d, a, b, c, in[9] + 0x8b44f7af, 12); + MD5STEP(F1, c, d, a, b, in[10] + 0xffff5bb1, 17); + MD5STEP(F1, b, c, d, a, in[11] + 0x895cd7be, 22); + MD5STEP(F1, a, b, c, d, in[12] + 0x6b901122, 7); + MD5STEP(F1, d, a, b, c, in[13] + 0xfd987193, 12); + MD5STEP(F1, c, d, a, b, in[14] + 0xa679438e, 17); + MD5STEP(F1, b, c, d, a, in[15] + 0x49b40821, 22); + + MD5STEP(F2, a, b, c, d, in[1] + 0xf61e2562, 5); + MD5STEP(F2, d, a, b, c, in[6] + 0xc040b340, 9); + MD5STEP(F2, c, d, a, b, in[11] + 0x265e5a51, 14); + MD5STEP(F2, b, c, d, a, in[0] + 0xe9b6c7aa, 20); + MD5STEP(F2, a, b, c, d, in[5] + 0xd62f105d, 5); + MD5STEP(F2, d, a, b, c, in[10] + 0x02441453, 9); + MD5STEP(F2, c, d, a, b, in[15] + 0xd8a1e681, 14); + MD5STEP(F2, b, c, d, a, in[4] + 0xe7d3fbc8, 20); + MD5STEP(F2, a, b, c, d, in[9] + 0x21e1cde6, 5); + MD5STEP(F2, d, a, b, c, in[14] + 0xc33707d6, 9); + MD5STEP(F2, c, d, a, b, in[3] + 0xf4d50d87, 14); + MD5STEP(F2, b, c, d, a, in[8] + 0x455a14ed, 20); + MD5STEP(F2, a, b, c, d, in[13] + 0xa9e3e905, 5); + MD5STEP(F2, d, a, b, c, in[2] + 0xfcefa3f8, 9); + MD5STEP(F2, c, d, a, b, in[7] + 0x676f02d9, 14); + MD5STEP(F2, b, c, d, a, in[12] + 0x8d2a4c8a, 20); + + MD5STEP(F3, a, b, c, d, in[5] + 0xfffa3942, 4); + MD5STEP(F3, d, a, b, c, in[8] + 0x8771f681, 11); + MD5STEP(F3, c, d, a, b, in[11] + 0x6d9d6122, 16); + MD5STEP(F3, b, c, d, a, in[14] + 0xfde5380c, 23); + MD5STEP(F3, a, b, c, d, in[1] + 0xa4beea44, 4); + MD5STEP(F3, d, a, b, c, in[4] + 0x4bdecfa9, 11); + MD5STEP(F3, c, d, a, b, in[7] + 0xf6bb4b60, 16); + MD5STEP(F3, b, c, d, a, in[10] + 0xbebfbc70, 23); + MD5STEP(F3, a, b, c, d, in[13] + 0x289b7ec6, 4); + MD5STEP(F3, d, a, b, c, in[0] + 0xeaa127fa, 11); + MD5STEP(F3, c, d, a, b, in[3] + 0xd4ef3085, 16); + MD5STEP(F3, b, c, d, a, in[6] + 0x04881d05, 23); + MD5STEP(F3, a, b, c, d, in[9] + 0xd9d4d039, 4); + MD5STEP(F3, d, a, b, c, in[12] + 0xe6db99e5, 11); + MD5STEP(F3, c, d, a, b, in[15] + 0x1fa27cf8, 16); + MD5STEP(F3, b, c, d, a, in[2] + 0xc4ac5665, 23); + + MD5STEP(F4, a, b, c, d, in[0] + 0xf4292244, 6); + MD5STEP(F4, d, a, b, c, in[7] + 0x432aff97, 10); + MD5STEP(F4, c, d, a, b, in[14] + 0xab9423a7, 15); + MD5STEP(F4, b, c, d, a, in[5] + 0xfc93a039, 21); + MD5STEP(F4, a, b, c, d, in[12] + 0x655b59c3, 6); + MD5STEP(F4, d, a, b, c, in[3] + 0x8f0ccc92, 10); + MD5STEP(F4, c, d, a, b, in[10] + 0xffeff47d, 15); + MD5STEP(F4, b, c, d, a, in[1] + 0x85845dd1, 21); + MD5STEP(F4, a, b, c, d, in[8] + 0x6fa87e4f, 6); + MD5STEP(F4, d, a, b, c, in[15] + 0xfe2ce6e0, 10); + MD5STEP(F4, c, d, a, b, in[6] + 0xa3014314, 15); + MD5STEP(F4, b, c, d, a, in[13] + 0x4e0811a1, 21); + MD5STEP(F4, a, b, c, d, in[4] + 0xf7537e82, 6); + MD5STEP(F4, d, a, b, c, in[11] + 0xbd3af235, 10); + MD5STEP(F4, c, d, a, b, in[2] + 0x2ad7d2bb, 15); + MD5STEP(F4, b, c, d, a, in[9] + 0xeb86d391, 21); + + digest[0]+=a; + digest[1]+=b; + digest[2]+=c; + digest[3]+=d; +} + +NAMESPACE_END -- cgit v1.2.3