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v31.0
src/crypto/ripemd160.cpp
292 строки
11 KB
MarcoFalke
scripted-diff: Bump copyright headers after include changes
03 июн 2025, 16:13
03 июн 2025, 16:13
facb152
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// Copyright (c) 2014-present The Bitcoin Core developers // Distributed under the MIT software license, see the accompanying // file COPYING or http://www.opensource.org/licenses/mit-license.php. #include <crypto/ripemd160.h> #include <crypto/common.h> #include <cstring> // Internal implementation code. namespace { /// Internal RIPEMD-160 implementation. namespace ripemd160 { uint32_t inline f1(uint32_t x, uint32_t y, uint32_t z) { return x ^ y ^ z; } uint32_t inline f2(uint32_t x, uint32_t y, uint32_t z) { return (x & y) | (~x & z); } uint32_t inline f3(uint32_t x, uint32_t y, uint32_t z) { return (x | ~y) ^ z; } uint32_t inline f4(uint32_t x, uint32_t y, uint32_t z) { return (x & z) | (y & ~z); } uint32_t inline f5(uint32_t x, uint32_t y, uint32_t z) { return x ^ (y | ~z); } /** Initialize RIPEMD-160 state. */ void inline Initialize(uint32_t* s) { s[0] = 0x67452301ul; s[1] = 0xEFCDAB89ul; s[2] = 0x98BADCFEul; s[3] = 0x10325476ul; s[4] = 0xC3D2E1F0ul; } uint32_t inline rol(uint32_t x, int i) { return (x << i) | (x >> (32 - i)); } void inline Round(uint32_t& a, uint32_t b, uint32_t& c, uint32_t d, uint32_t e, uint32_t f, uint32_t x, uint32_t k, int r) { a = rol(a + f + x + k, r) + e; c = rol(c, 10); } void inline R11(uint32_t& a, uint32_t b, uint32_t& c, uint32_t d, uint32_t e, uint32_t x, int r) { Round(a, b, c, d, e, f1(b, c, d), x, 0, r); } void inline R21(uint32_t& a, uint32_t b, uint32_t& c, uint32_t d, uint32_t e, uint32_t x, int r) { Round(a, b, c, d, e, f2(b, c, d), x, 0x5A827999ul, r); } void inline R31(uint32_t& a, uint32_t b, uint32_t& c, uint32_t d, uint32_t e, uint32_t x, int r) { Round(a, b, c, d, e, f3(b, c, d), x, 0x6ED9EBA1ul, r); } void inline R41(uint32_t& a, uint32_t b, uint32_t& c, uint32_t d, uint32_t e, uint32_t x, int r) { Round(a, b, c, d, e, f4(b, c, d), x, 0x8F1BBCDCul, r); } void inline R51(uint32_t& a, uint32_t b, uint32_t& c, uint32_t d, uint32_t e, uint32_t x, int r) { Round(a, b, c, d, e, f5(b, c, d), x, 0xA953FD4Eul, r); } void inline R12(uint32_t& a, uint32_t b, uint32_t& c, uint32_t d, uint32_t e, uint32_t x, int r) { Round(a, b, c, d, e, f5(b, c, d), x, 0x50A28BE6ul, r); } void inline R22(uint32_t& a, uint32_t b, uint32_t& c, uint32_t d, uint32_t e, uint32_t x, int r) { Round(a, b, c, d, e, f4(b, c, d), x, 0x5C4DD124ul, r); } void inline R32(uint32_t& a, uint32_t b, uint32_t& c, uint32_t d, uint32_t e, uint32_t x, int r) { Round(a, b, c, d, e, f3(b, c, d), x, 0x6D703EF3ul, r); } void inline R42(uint32_t& a, uint32_t b, uint32_t& c, uint32_t d, uint32_t e, uint32_t x, int r) { Round(a, b, c, d, e, f2(b, c, d), x, 0x7A6D76E9ul, r); } void inline R52(uint32_t& a, uint32_t b, uint32_t& c, uint32_t d, uint32_t e, uint32_t x, int r) { Round(a, b, c, d, e, f1(b, c, d), x, 0, r); } /** Perform a RIPEMD-160 transformation, processing a 64-byte chunk. */ void Transform(uint32_t* s, const unsigned char* chunk) { uint32_t a1 = s[0], b1 = s[1], c1 = s[2], d1 = s[3], e1 = s[4]; uint32_t a2 = a1, b2 = b1, c2 = c1, d2 = d1, e2 = e1; uint32_t w0 = ReadLE32(chunk + 0), w1 = ReadLE32(chunk + 4), w2 = ReadLE32(chunk + 8), w3 = ReadLE32(chunk + 12); uint32_t w4 = ReadLE32(chunk + 16), w5 = ReadLE32(chunk + 20), w6 = ReadLE32(chunk + 24), w7 = ReadLE32(chunk + 28); uint32_t w8 = ReadLE32(chunk + 32), w9 = ReadLE32(chunk + 36), w10 = ReadLE32(chunk + 40), w11 = ReadLE32(chunk + 44); uint32_t w12 = ReadLE32(chunk + 48), w13 = ReadLE32(chunk + 52), w14 = ReadLE32(chunk + 56), w15 = ReadLE32(chunk + 60); R11(a1, b1, c1, d1, e1, w0, 11); R12(a2, b2, c2, d2, e2, w5, 8); R11(e1, a1, b1, c1, d1, w1, 14); R12(e2, a2, b2, c2, d2, w14, 9); R11(d1, e1, a1, b1, c1, w2, 15); R12(d2, e2, a2, b2, c2, w7, 9); R11(c1, d1, e1, a1, b1, w3, 12); R12(c2, d2, e2, a2, b2, w0, 11); R11(b1, c1, d1, e1, a1, w4, 5); R12(b2, c2, d2, e2, a2, w9, 13); R11(a1, b1, c1, d1, e1, w5, 8); R12(a2, b2, c2, d2, e2, w2, 15); R11(e1, a1, b1, c1, d1, w6, 7); R12(e2, a2, b2, c2, d2, w11, 15); R11(d1, e1, a1, b1, c1, w7, 9); R12(d2, e2, a2, b2, c2, w4, 5); R11(c1, d1, e1, a1, b1, w8, 11); R12(c2, d2, e2, a2, b2, w13, 7); R11(b1, c1, d1, e1, a1, w9, 13); R12(b2, c2, d2, e2, a2, w6, 7); R11(a1, b1, c1, d1, e1, w10, 14); R12(a2, b2, c2, d2, e2, w15, 8); R11(e1, a1, b1, c1, d1, w11, 15); R12(e2, a2, b2, c2, d2, w8, 11); R11(d1, e1, a1, b1, c1, w12, 6); R12(d2, e2, a2, b2, c2, w1, 14); R11(c1, d1, e1, a1, b1, w13, 7); R12(c2, d2, e2, a2, b2, w10, 14); R11(b1, c1, d1, e1, a1, w14, 9); R12(b2, c2, d2, e2, a2, w3, 12); R11(a1, b1, c1, d1, e1, w15, 8); R12(a2, b2, c2, d2, e2, w12, 6); R21(e1, a1, b1, c1, d1, w7, 7); R22(e2, a2, b2, c2, d2, w6, 9); R21(d1, e1, a1, b1, c1, w4, 6); R22(d2, e2, a2, b2, c2, w11, 13); R21(c1, d1, e1, a1, b1, w13, 8); R22(c2, d2, e2, a2, b2, w3, 15); R21(b1, c1, d1, e1, a1, w1, 13); R22(b2, c2, d2, e2, a2, w7, 7); R21(a1, b1, c1, d1, e1, w10, 11); R22(a2, b2, c2, d2, e2, w0, 12); R21(e1, a1, b1, c1, d1, w6, 9); R22(e2, a2, b2, c2, d2, w13, 8); R21(d1, e1, a1, b1, c1, w15, 7); R22(d2, e2, a2, b2, c2, w5, 9); R21(c1, d1, e1, a1, b1, w3, 15); R22(c2, d2, e2, a2, b2, w10, 11); R21(b1, c1, d1, e1, a1, w12, 7); R22(b2, c2, d2, e2, a2, w14, 7); R21(a1, b1, c1, d1, e1, w0, 12); R22(a2, b2, c2, d2, e2, w15, 7); R21(e1, a1, b1, c1, d1, w9, 15); R22(e2, a2, b2, c2, d2, w8, 12); R21(d1, e1, a1, b1, c1, w5, 9); R22(d2, e2, a2, b2, c2, w12, 7); R21(c1, d1, e1, a1, b1, w2, 11); R22(c2, d2, e2, a2, b2, w4, 6); R21(b1, c1, d1, e1, a1, w14, 7); R22(b2, c2, d2, e2, a2, w9, 15); R21(a1, b1, c1, d1, e1, w11, 13); R22(a2, b2, c2, d2, e2, w1, 13); R21(e1, a1, b1, c1, d1, w8, 12); R22(e2, a2, b2, c2, d2, w2, 11); R31(d1, e1, a1, b1, c1, w3, 11); R32(d2, e2, a2, b2, c2, w15, 9); R31(c1, d1, e1, a1, b1, w10, 13); R32(c2, d2, e2, a2, b2, w5, 7); R31(b1, c1, d1, e1, a1, w14, 6); R32(b2, c2, d2, e2, a2, w1, 15); R31(a1, b1, c1, d1, e1, w4, 7); R32(a2, b2, c2, d2, e2, w3, 11); R31(e1, a1, b1, c1, d1, w9, 14); R32(e2, a2, b2, c2, d2, w7, 8); R31(d1, e1, a1, b1, c1, w15, 9); R32(d2, e2, a2, b2, c2, w14, 6); R31(c1, d1, e1, a1, b1, w8, 13); R32(c2, d2, e2, a2, b2, w6, 6); R31(b1, c1, d1, e1, a1, w1, 15); R32(b2, c2, d2, e2, a2, w9, 14); R31(a1, b1, c1, d1, e1, w2, 14); R32(a2, b2, c2, d2, e2, w11, 12); R31(e1, a1, b1, c1, d1, w7, 8); R32(e2, a2, b2, c2, d2, w8, 13); R31(d1, e1, a1, b1, c1, w0, 13); R32(d2, e2, a2, b2, c2, w12, 5); R31(c1, d1, e1, a1, b1, w6, 6); R32(c2, d2, e2, a2, b2, w2, 14); R31(b1, c1, d1, e1, a1, w13, 5); R32(b2, c2, d2, e2, a2, w10, 13); R31(a1, b1, c1, d1, e1, w11, 12); R32(a2, b2, c2, d2, e2, w0, 13); R31(e1, a1, b1, c1, d1, w5, 7); R32(e2, a2, b2, c2, d2, w4, 7); R31(d1, e1, a1, b1, c1, w12, 5); R32(d2, e2, a2, b2, c2, w13, 5); R41(c1, d1, e1, a1, b1, w1, 11); R42(c2, d2, e2, a2, b2, w8, 15); R41(b1, c1, d1, e1, a1, w9, 12); R42(b2, c2, d2, e2, a2, w6, 5); R41(a1, b1, c1, d1, e1, w11, 14); R42(a2, b2, c2, d2, e2, w4, 8); R41(e1, a1, b1, c1, d1, w10, 15); R42(e2, a2, b2, c2, d2, w1, 11); R41(d1, e1, a1, b1, c1, w0, 14); R42(d2, e2, a2, b2, c2, w3, 14); R41(c1, d1, e1, a1, b1, w8, 15); R42(c2, d2, e2, a2, b2, w11, 14); R41(b1, c1, d1, e1, a1, w12, 9); R42(b2, c2, d2, e2, a2, w15, 6); R41(a1, b1, c1, d1, e1, w4, 8); R42(a2, b2, c2, d2, e2, w0, 14); R41(e1, a1, b1, c1, d1, w13, 9); R42(e2, a2, b2, c2, d2, w5, 6); R41(d1, e1, a1, b1, c1, w3, 14); R42(d2, e2, a2, b2, c2, w12, 9); R41(c1, d1, e1, a1, b1, w7, 5); R42(c2, d2, e2, a2, b2, w2, 12); R41(b1, c1, d1, e1, a1, w15, 6); R42(b2, c2, d2, e2, a2, w13, 9); R41(a1, b1, c1, d1, e1, w14, 8); R42(a2, b2, c2, d2, e2, w9, 12); R41(e1, a1, b1, c1, d1, w5, 6); R42(e2, a2, b2, c2, d2, w7, 5); R41(d1, e1, a1, b1, c1, w6, 5); R42(d2, e2, a2, b2, c2, w10, 15); R41(c1, d1, e1, a1, b1, w2, 12); R42(c2, d2, e2, a2, b2, w14, 8); R51(b1, c1, d1, e1, a1, w4, 9); R52(b2, c2, d2, e2, a2, w12, 8); R51(a1, b1, c1, d1, e1, w0, 15); R52(a2, b2, c2, d2, e2, w15, 5); R51(e1, a1, b1, c1, d1, w5, 5); R52(e2, a2, b2, c2, d2, w10, 12); R51(d1, e1, a1, b1, c1, w9, 11); R52(d2, e2, a2, b2, c2, w4, 9); R51(c1, d1, e1, a1, b1, w7, 6); R52(c2, d2, e2, a2, b2, w1, 12); R51(b1, c1, d1, e1, a1, w12, 8); R52(b2, c2, d2, e2, a2, w5, 5); R51(a1, b1, c1, d1, e1, w2, 13); R52(a2, b2, c2, d2, e2, w8, 14); R51(e1, a1, b1, c1, d1, w10, 12); R52(e2, a2, b2, c2, d2, w7, 6); R51(d1, e1, a1, b1, c1, w14, 5); R52(d2, e2, a2, b2, c2, w6, 8); R51(c1, d1, e1, a1, b1, w1, 12); R52(c2, d2, e2, a2, b2, w2, 13); R51(b1, c1, d1, e1, a1, w3, 13); R52(b2, c2, d2, e2, a2, w13, 6); R51(a1, b1, c1, d1, e1, w8, 14); R52(a2, b2, c2, d2, e2, w14, 5); R51(e1, a1, b1, c1, d1, w11, 11); R52(e2, a2, b2, c2, d2, w0, 15); R51(d1, e1, a1, b1, c1, w6, 8); R52(d2, e2, a2, b2, c2, w3, 13); R51(c1, d1, e1, a1, b1, w15, 5); R52(c2, d2, e2, a2, b2, w9, 11); R51(b1, c1, d1, e1, a1, w13, 6); R52(b2, c2, d2, e2, a2, w11, 11); uint32_t t = s[0]; s[0] = s[1] + c1 + d2; s[1] = s[2] + d1 + e2; s[2] = s[3] + e1 + a2; s[3] = s[4] + a1 + b2; s[4] = t + b1 + c2; } } // namespace ripemd160 } // namespace ////// RIPEMD160 CRIPEMD160::CRIPEMD160() { ripemd160::Initialize(s); } CRIPEMD160& CRIPEMD160::Write(const unsigned char* data, size_t len) { const unsigned char* end = data + len; size_t bufsize = bytes % 64; if (bufsize && bufsize + len >= 64) { // Fill the buffer, and process it. memcpy(buf + bufsize, data, 64 - bufsize); bytes += 64 - bufsize; data += 64 - bufsize; ripemd160::Transform(s, buf); bufsize = 0; } while (end - data >= 64) { // Process full chunks directly from the source. ripemd160::Transform(s, data); bytes += 64; data += 64; } if (end > data) { // Fill the buffer with what remains. memcpy(buf + bufsize, data, end - data); bytes += end - data; } return *this; } void CRIPEMD160::Finalize(unsigned char hash[OUTPUT_SIZE]) { static const unsigned char pad[64] = {0x80}; unsigned char sizedesc[8]; WriteLE64(sizedesc, bytes << 3); Write(pad, 1 + ((119 - (bytes % 64)) % 64)); Write(sizedesc, 8); WriteLE32(hash, s[0]); WriteLE32(hash + 4, s[1]); WriteLE32(hash + 8, s[2]); WriteLE32(hash + 12, s[3]); WriteLE32(hash + 16, s[4]); } CRIPEMD160& CRIPEMD160::Reset() { bytes = 0; ripemd160::Initialize(s); return *this; }