LCOV - code coverage report
Current view: top level - src/crypto - ripemd160.cpp (source / functions) Hit Total Coverage
Test: fuzz_coverage.info Lines: 0 237 0.0 %
Date: 2023-09-26 12:08:55 Functions: 0 23 0.0 %

          Line data    Source code
       1             : // Copyright (c) 2014-2019 The Bitcoin Core developers
       2             : // Distributed under the MIT software license, see the accompanying
       3             : // file COPYING or http://www.opensource.org/licenses/mit-license.php.
       4             : 
       5             : #include <crypto/ripemd160.h>
       6             : 
       7             : #include <crypto/common.h>
       8             : 
       9             : #include <string.h>
      10             : 
      11             : // Internal implementation code.
      12             : namespace
      13             : {
      14             : /// Internal RIPEMD-160 implementation.
      15             : namespace ripemd160
      16             : {
      17           0 : uint32_t inline f1(uint32_t x, uint32_t y, uint32_t z) { return x ^ y ^ z; }
      18           0 : uint32_t inline f2(uint32_t x, uint32_t y, uint32_t z) { return (x & y) | (~x & z); }
      19           0 : uint32_t inline f3(uint32_t x, uint32_t y, uint32_t z) { return (x | ~y) ^ z; }
      20           0 : uint32_t inline f4(uint32_t x, uint32_t y, uint32_t z) { return (x & z) | (y & ~z); }
      21           0 : uint32_t inline f5(uint32_t x, uint32_t y, uint32_t z) { return x ^ (y | ~z); }
      22             : 
      23             : /** Initialize RIPEMD-160 state. */
      24           0 : void inline Initialize(uint32_t* s)
      25             : {
      26           0 :     s[0] = 0x67452301ul;
      27           0 :     s[1] = 0xEFCDAB89ul;
      28           0 :     s[2] = 0x98BADCFEul;
      29           0 :     s[3] = 0x10325476ul;
      30           0 :     s[4] = 0xC3D2E1F0ul;
      31           0 : }
      32             : 
      33           0 : uint32_t inline rol(uint32_t x, int i) { return (x << i) | (x >> (32 - i)); }
      34             : 
      35           0 : 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)
      36             : {
      37           0 :     a = rol(a + f + x + k, r) + e;
      38           0 :     c = rol(c, 10);
      39           0 : }
      40             : 
      41           0 : 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); }
      42           0 : 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); }
      43           0 : 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); }
      44           0 : 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); }
      45           0 : 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); }
      46             : 
      47           0 : 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); }
      48           0 : 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); }
      49           0 : 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); }
      50           0 : 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); }
      51           0 : 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); }
      52             : 
      53             : /** Perform a RIPEMD-160 transformation, processing a 64-byte chunk. */
      54           0 : void Transform(uint32_t* s, const unsigned char* chunk)
      55             : {
      56           0 :     uint32_t a1 = s[0], b1 = s[1], c1 = s[2], d1 = s[3], e1 = s[4];
      57           0 :     uint32_t a2 = a1, b2 = b1, c2 = c1, d2 = d1, e2 = e1;
      58           0 :     uint32_t w0 = ReadLE32(chunk + 0), w1 = ReadLE32(chunk + 4), w2 = ReadLE32(chunk + 8), w3 = ReadLE32(chunk + 12);
      59           0 :     uint32_t w4 = ReadLE32(chunk + 16), w5 = ReadLE32(chunk + 20), w6 = ReadLE32(chunk + 24), w7 = ReadLE32(chunk + 28);
      60           0 :     uint32_t w8 = ReadLE32(chunk + 32), w9 = ReadLE32(chunk + 36), w10 = ReadLE32(chunk + 40), w11 = ReadLE32(chunk + 44);
      61           0 :     uint32_t w12 = ReadLE32(chunk + 48), w13 = ReadLE32(chunk + 52), w14 = ReadLE32(chunk + 56), w15 = ReadLE32(chunk + 60);
      62             : 
      63           0 :     R11(a1, b1, c1, d1, e1, w0, 11);
      64           0 :     R12(a2, b2, c2, d2, e2, w5, 8);
      65           0 :     R11(e1, a1, b1, c1, d1, w1, 14);
      66           0 :     R12(e2, a2, b2, c2, d2, w14, 9);
      67           0 :     R11(d1, e1, a1, b1, c1, w2, 15);
      68           0 :     R12(d2, e2, a2, b2, c2, w7, 9);
      69           0 :     R11(c1, d1, e1, a1, b1, w3, 12);
      70           0 :     R12(c2, d2, e2, a2, b2, w0, 11);
      71           0 :     R11(b1, c1, d1, e1, a1, w4, 5);
      72           0 :     R12(b2, c2, d2, e2, a2, w9, 13);
      73           0 :     R11(a1, b1, c1, d1, e1, w5, 8);
      74           0 :     R12(a2, b2, c2, d2, e2, w2, 15);
      75           0 :     R11(e1, a1, b1, c1, d1, w6, 7);
      76           0 :     R12(e2, a2, b2, c2, d2, w11, 15);
      77           0 :     R11(d1, e1, a1, b1, c1, w7, 9);
      78           0 :     R12(d2, e2, a2, b2, c2, w4, 5);
      79           0 :     R11(c1, d1, e1, a1, b1, w8, 11);
      80           0 :     R12(c2, d2, e2, a2, b2, w13, 7);
      81           0 :     R11(b1, c1, d1, e1, a1, w9, 13);
      82           0 :     R12(b2, c2, d2, e2, a2, w6, 7);
      83           0 :     R11(a1, b1, c1, d1, e1, w10, 14);
      84           0 :     R12(a2, b2, c2, d2, e2, w15, 8);
      85           0 :     R11(e1, a1, b1, c1, d1, w11, 15);
      86           0 :     R12(e2, a2, b2, c2, d2, w8, 11);
      87           0 :     R11(d1, e1, a1, b1, c1, w12, 6);
      88           0 :     R12(d2, e2, a2, b2, c2, w1, 14);
      89           0 :     R11(c1, d1, e1, a1, b1, w13, 7);
      90           0 :     R12(c2, d2, e2, a2, b2, w10, 14);
      91           0 :     R11(b1, c1, d1, e1, a1, w14, 9);
      92           0 :     R12(b2, c2, d2, e2, a2, w3, 12);
      93           0 :     R11(a1, b1, c1, d1, e1, w15, 8);
      94           0 :     R12(a2, b2, c2, d2, e2, w12, 6);
      95             : 
      96           0 :     R21(e1, a1, b1, c1, d1, w7, 7);
      97           0 :     R22(e2, a2, b2, c2, d2, w6, 9);
      98           0 :     R21(d1, e1, a1, b1, c1, w4, 6);
      99           0 :     R22(d2, e2, a2, b2, c2, w11, 13);
     100           0 :     R21(c1, d1, e1, a1, b1, w13, 8);
     101           0 :     R22(c2, d2, e2, a2, b2, w3, 15);
     102           0 :     R21(b1, c1, d1, e1, a1, w1, 13);
     103           0 :     R22(b2, c2, d2, e2, a2, w7, 7);
     104           0 :     R21(a1, b1, c1, d1, e1, w10, 11);
     105           0 :     R22(a2, b2, c2, d2, e2, w0, 12);
     106           0 :     R21(e1, a1, b1, c1, d1, w6, 9);
     107           0 :     R22(e2, a2, b2, c2, d2, w13, 8);
     108           0 :     R21(d1, e1, a1, b1, c1, w15, 7);
     109           0 :     R22(d2, e2, a2, b2, c2, w5, 9);
     110           0 :     R21(c1, d1, e1, a1, b1, w3, 15);
     111           0 :     R22(c2, d2, e2, a2, b2, w10, 11);
     112           0 :     R21(b1, c1, d1, e1, a1, w12, 7);
     113           0 :     R22(b2, c2, d2, e2, a2, w14, 7);
     114           0 :     R21(a1, b1, c1, d1, e1, w0, 12);
     115           0 :     R22(a2, b2, c2, d2, e2, w15, 7);
     116           0 :     R21(e1, a1, b1, c1, d1, w9, 15);
     117           0 :     R22(e2, a2, b2, c2, d2, w8, 12);
     118           0 :     R21(d1, e1, a1, b1, c1, w5, 9);
     119           0 :     R22(d2, e2, a2, b2, c2, w12, 7);
     120           0 :     R21(c1, d1, e1, a1, b1, w2, 11);
     121           0 :     R22(c2, d2, e2, a2, b2, w4, 6);
     122           0 :     R21(b1, c1, d1, e1, a1, w14, 7);
     123           0 :     R22(b2, c2, d2, e2, a2, w9, 15);
     124           0 :     R21(a1, b1, c1, d1, e1, w11, 13);
     125           0 :     R22(a2, b2, c2, d2, e2, w1, 13);
     126           0 :     R21(e1, a1, b1, c1, d1, w8, 12);
     127           0 :     R22(e2, a2, b2, c2, d2, w2, 11);
     128             : 
     129           0 :     R31(d1, e1, a1, b1, c1, w3, 11);
     130           0 :     R32(d2, e2, a2, b2, c2, w15, 9);
     131           0 :     R31(c1, d1, e1, a1, b1, w10, 13);
     132           0 :     R32(c2, d2, e2, a2, b2, w5, 7);
     133           0 :     R31(b1, c1, d1, e1, a1, w14, 6);
     134           0 :     R32(b2, c2, d2, e2, a2, w1, 15);
     135           0 :     R31(a1, b1, c1, d1, e1, w4, 7);
     136           0 :     R32(a2, b2, c2, d2, e2, w3, 11);
     137           0 :     R31(e1, a1, b1, c1, d1, w9, 14);
     138           0 :     R32(e2, a2, b2, c2, d2, w7, 8);
     139           0 :     R31(d1, e1, a1, b1, c1, w15, 9);
     140           0 :     R32(d2, e2, a2, b2, c2, w14, 6);
     141           0 :     R31(c1, d1, e1, a1, b1, w8, 13);
     142           0 :     R32(c2, d2, e2, a2, b2, w6, 6);
     143           0 :     R31(b1, c1, d1, e1, a1, w1, 15);
     144           0 :     R32(b2, c2, d2, e2, a2, w9, 14);
     145           0 :     R31(a1, b1, c1, d1, e1, w2, 14);
     146           0 :     R32(a2, b2, c2, d2, e2, w11, 12);
     147           0 :     R31(e1, a1, b1, c1, d1, w7, 8);
     148           0 :     R32(e2, a2, b2, c2, d2, w8, 13);
     149           0 :     R31(d1, e1, a1, b1, c1, w0, 13);
     150           0 :     R32(d2, e2, a2, b2, c2, w12, 5);
     151           0 :     R31(c1, d1, e1, a1, b1, w6, 6);
     152           0 :     R32(c2, d2, e2, a2, b2, w2, 14);
     153           0 :     R31(b1, c1, d1, e1, a1, w13, 5);
     154           0 :     R32(b2, c2, d2, e2, a2, w10, 13);
     155           0 :     R31(a1, b1, c1, d1, e1, w11, 12);
     156           0 :     R32(a2, b2, c2, d2, e2, w0, 13);
     157           0 :     R31(e1, a1, b1, c1, d1, w5, 7);
     158           0 :     R32(e2, a2, b2, c2, d2, w4, 7);
     159           0 :     R31(d1, e1, a1, b1, c1, w12, 5);
     160           0 :     R32(d2, e2, a2, b2, c2, w13, 5);
     161             : 
     162           0 :     R41(c1, d1, e1, a1, b1, w1, 11);
     163           0 :     R42(c2, d2, e2, a2, b2, w8, 15);
     164           0 :     R41(b1, c1, d1, e1, a1, w9, 12);
     165           0 :     R42(b2, c2, d2, e2, a2, w6, 5);
     166           0 :     R41(a1, b1, c1, d1, e1, w11, 14);
     167           0 :     R42(a2, b2, c2, d2, e2, w4, 8);
     168           0 :     R41(e1, a1, b1, c1, d1, w10, 15);
     169           0 :     R42(e2, a2, b2, c2, d2, w1, 11);
     170           0 :     R41(d1, e1, a1, b1, c1, w0, 14);
     171           0 :     R42(d2, e2, a2, b2, c2, w3, 14);
     172           0 :     R41(c1, d1, e1, a1, b1, w8, 15);
     173           0 :     R42(c2, d2, e2, a2, b2, w11, 14);
     174           0 :     R41(b1, c1, d1, e1, a1, w12, 9);
     175           0 :     R42(b2, c2, d2, e2, a2, w15, 6);
     176           0 :     R41(a1, b1, c1, d1, e1, w4, 8);
     177           0 :     R42(a2, b2, c2, d2, e2, w0, 14);
     178           0 :     R41(e1, a1, b1, c1, d1, w13, 9);
     179           0 :     R42(e2, a2, b2, c2, d2, w5, 6);
     180           0 :     R41(d1, e1, a1, b1, c1, w3, 14);
     181           0 :     R42(d2, e2, a2, b2, c2, w12, 9);
     182           0 :     R41(c1, d1, e1, a1, b1, w7, 5);
     183           0 :     R42(c2, d2, e2, a2, b2, w2, 12);
     184           0 :     R41(b1, c1, d1, e1, a1, w15, 6);
     185           0 :     R42(b2, c2, d2, e2, a2, w13, 9);
     186           0 :     R41(a1, b1, c1, d1, e1, w14, 8);
     187           0 :     R42(a2, b2, c2, d2, e2, w9, 12);
     188           0 :     R41(e1, a1, b1, c1, d1, w5, 6);
     189           0 :     R42(e2, a2, b2, c2, d2, w7, 5);
     190           0 :     R41(d1, e1, a1, b1, c1, w6, 5);
     191           0 :     R42(d2, e2, a2, b2, c2, w10, 15);
     192           0 :     R41(c1, d1, e1, a1, b1, w2, 12);
     193           0 :     R42(c2, d2, e2, a2, b2, w14, 8);
     194             : 
     195           0 :     R51(b1, c1, d1, e1, a1, w4, 9);
     196           0 :     R52(b2, c2, d2, e2, a2, w12, 8);
     197           0 :     R51(a1, b1, c1, d1, e1, w0, 15);
     198           0 :     R52(a2, b2, c2, d2, e2, w15, 5);
     199           0 :     R51(e1, a1, b1, c1, d1, w5, 5);
     200           0 :     R52(e2, a2, b2, c2, d2, w10, 12);
     201           0 :     R51(d1, e1, a1, b1, c1, w9, 11);
     202           0 :     R52(d2, e2, a2, b2, c2, w4, 9);
     203           0 :     R51(c1, d1, e1, a1, b1, w7, 6);
     204           0 :     R52(c2, d2, e2, a2, b2, w1, 12);
     205           0 :     R51(b1, c1, d1, e1, a1, w12, 8);
     206           0 :     R52(b2, c2, d2, e2, a2, w5, 5);
     207           0 :     R51(a1, b1, c1, d1, e1, w2, 13);
     208           0 :     R52(a2, b2, c2, d2, e2, w8, 14);
     209           0 :     R51(e1, a1, b1, c1, d1, w10, 12);
     210           0 :     R52(e2, a2, b2, c2, d2, w7, 6);
     211           0 :     R51(d1, e1, a1, b1, c1, w14, 5);
     212           0 :     R52(d2, e2, a2, b2, c2, w6, 8);
     213           0 :     R51(c1, d1, e1, a1, b1, w1, 12);
     214           0 :     R52(c2, d2, e2, a2, b2, w2, 13);
     215           0 :     R51(b1, c1, d1, e1, a1, w3, 13);
     216           0 :     R52(b2, c2, d2, e2, a2, w13, 6);
     217           0 :     R51(a1, b1, c1, d1, e1, w8, 14);
     218           0 :     R52(a2, b2, c2, d2, e2, w14, 5);
     219           0 :     R51(e1, a1, b1, c1, d1, w11, 11);
     220           0 :     R52(e2, a2, b2, c2, d2, w0, 15);
     221           0 :     R51(d1, e1, a1, b1, c1, w6, 8);
     222           0 :     R52(d2, e2, a2, b2, c2, w3, 13);
     223           0 :     R51(c1, d1, e1, a1, b1, w15, 5);
     224           0 :     R52(c2, d2, e2, a2, b2, w9, 11);
     225           0 :     R51(b1, c1, d1, e1, a1, w13, 6);
     226           0 :     R52(b2, c2, d2, e2, a2, w11, 11);
     227             : 
     228           0 :     uint32_t t = s[0];
     229           0 :     s[0] = s[1] + c1 + d2;
     230           0 :     s[1] = s[2] + d1 + e2;
     231           0 :     s[2] = s[3] + e1 + a2;
     232           0 :     s[3] = s[4] + a1 + b2;
     233           0 :     s[4] = t + b1 + c2;
     234           0 : }
     235             : 
     236             : } // namespace ripemd160
     237             : 
     238             : } // namespace
     239             : 
     240             : ////// RIPEMD160
     241             : 
     242           0 : CRIPEMD160::CRIPEMD160()
     243             : {
     244           0 :     ripemd160::Initialize(s);
     245           0 : }
     246             : 
     247           0 : CRIPEMD160& CRIPEMD160::Write(const unsigned char* data, size_t len)
     248             : {
     249           0 :     const unsigned char* end = data + len;
     250           0 :     size_t bufsize = bytes % 64;
     251           0 :     if (bufsize && bufsize + len >= 64) {
     252             :         // Fill the buffer, and process it.
     253           0 :         memcpy(buf + bufsize, data, 64 - bufsize);
     254           0 :         bytes += 64 - bufsize;
     255           0 :         data += 64 - bufsize;
     256           0 :         ripemd160::Transform(s, buf);
     257           0 :         bufsize = 0;
     258           0 :     }
     259           0 :     while (end - data >= 64) {
     260             :         // Process full chunks directly from the source.
     261           0 :         ripemd160::Transform(s, data);
     262           0 :         bytes += 64;
     263           0 :         data += 64;
     264             :     }
     265           0 :     if (end > data) {
     266             :         // Fill the buffer with what remains.
     267           0 :         memcpy(buf + bufsize, data, end - data);
     268           0 :         bytes += end - data;
     269           0 :     }
     270           0 :     return *this;
     271             : }
     272             : 
     273           0 : void CRIPEMD160::Finalize(unsigned char hash[OUTPUT_SIZE])
     274             : {
     275             :     static const unsigned char pad[64] = {0x80};
     276             :     unsigned char sizedesc[8];
     277           0 :     WriteLE64(sizedesc, bytes << 3);
     278           0 :     Write(pad, 1 + ((119 - (bytes % 64)) % 64));
     279           0 :     Write(sizedesc, 8);
     280           0 :     WriteLE32(hash, s[0]);
     281           0 :     WriteLE32(hash + 4, s[1]);
     282           0 :     WriteLE32(hash + 8, s[2]);
     283           0 :     WriteLE32(hash + 12, s[3]);
     284           0 :     WriteLE32(hash + 16, s[4]);
     285           0 : }
     286             : 
     287           0 : CRIPEMD160& CRIPEMD160::Reset()
     288             : {
     289           0 :     bytes = 0;
     290           0 :     ripemd160::Initialize(s);
     291           0 :     return *this;
     292             : }

Generated by: LCOV version 1.14