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1 : : // Copyright (c) 2013-2021 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 <clientversion.h>
6 : : #include <crypto/siphash.h>
7 : : #include <hash.h>
8 : : #include <test/util/random.h>
9 : : #include <test/util/setup_common.h>
10 : : #include <util/strencodings.h>
11 : :
12 : : #include <boost/test/unit_test.hpp>
13 : :
14 : : BOOST_AUTO_TEST_SUITE(hash_tests)
15 : :
16 [ + - + - : 7 : BOOST_AUTO_TEST_CASE(murmurhash3)
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17 : : {
18 : :
19 : : #define T(expected, seed, data) BOOST_CHECK_EQUAL(MurmurHash3(seed, ParseHex(data)), expected)
20 : :
21 : : // Test MurmurHash3 with various inputs. Of course this is retested in the
22 : : // bloom filter tests - they would fail if MurmurHash3() had any problems -
23 : : // but is useful for those trying to implement Bitcoin libraries as a
24 : : // source of test data for their MurmurHash3() primitive during
25 : : // development.
26 : : //
27 : : // The magic number 0xFBA4C795 comes from CBloomFilter::Hash()
28 : :
29 [ + - + - ]: 1 : T(0x00000000U, 0x00000000, "");
30 [ + - + - ]: 1 : T(0x6a396f08U, 0xFBA4C795, "");
31 [ + - + - ]: 1 : T(0x81f16f39U, 0xffffffff, "");
32 : :
33 [ + - + - ]: 1 : T(0x514e28b7U, 0x00000000, "00");
34 [ + - + - ]: 1 : T(0xea3f0b17U, 0xFBA4C795, "00");
35 [ + - + - ]: 1 : T(0xfd6cf10dU, 0x00000000, "ff");
36 : :
37 [ + - + - ]: 1 : T(0x16c6b7abU, 0x00000000, "0011");
38 [ + - + - ]: 1 : T(0x8eb51c3dU, 0x00000000, "001122");
39 [ + - + - ]: 1 : T(0xb4471bf8U, 0x00000000, "00112233");
40 [ + - + - ]: 1 : T(0xe2301fa8U, 0x00000000, "0011223344");
41 [ + - + - ]: 1 : T(0xfc2e4a15U, 0x00000000, "001122334455");
42 [ + - + - ]: 1 : T(0xb074502cU, 0x00000000, "00112233445566");
43 [ + - + - ]: 1 : T(0x8034d2a0U, 0x00000000, "0011223344556677");
44 [ + - + - ]: 1 : T(0xb4698defU, 0x00000000, "001122334455667788");
45 : :
46 : : #undef T
47 : 1 : }
48 : :
49 : : /*
50 : : SipHash-2-4 output with
51 : : k = 00 01 02 ...
52 : : and
53 : : in = (empty string)
54 : : in = 00 (1 byte)
55 : : in = 00 01 (2 bytes)
56 : : in = 00 01 02 (3 bytes)
57 : : ...
58 : : in = 00 01 02 ... 3e (63 bytes)
59 : :
60 : : from: https://131002.net/siphash/siphash24.c
61 : : */
62 : : uint64_t siphash_4_2_testvec[] = {
63 : : 0x726fdb47dd0e0e31, 0x74f839c593dc67fd, 0x0d6c8009d9a94f5a, 0x85676696d7fb7e2d,
64 : : 0xcf2794e0277187b7, 0x18765564cd99a68d, 0xcbc9466e58fee3ce, 0xab0200f58b01d137,
65 : : 0x93f5f5799a932462, 0x9e0082df0ba9e4b0, 0x7a5dbbc594ddb9f3, 0xf4b32f46226bada7,
66 : : 0x751e8fbc860ee5fb, 0x14ea5627c0843d90, 0xf723ca908e7af2ee, 0xa129ca6149be45e5,
67 : : 0x3f2acc7f57c29bdb, 0x699ae9f52cbe4794, 0x4bc1b3f0968dd39c, 0xbb6dc91da77961bd,
68 : : 0xbed65cf21aa2ee98, 0xd0f2cbb02e3b67c7, 0x93536795e3a33e88, 0xa80c038ccd5ccec8,
69 : : 0xb8ad50c6f649af94, 0xbce192de8a85b8ea, 0x17d835b85bbb15f3, 0x2f2e6163076bcfad,
70 : : 0xde4daaaca71dc9a5, 0xa6a2506687956571, 0xad87a3535c49ef28, 0x32d892fad841c342,
71 : : 0x7127512f72f27cce, 0xa7f32346f95978e3, 0x12e0b01abb051238, 0x15e034d40fa197ae,
72 : : 0x314dffbe0815a3b4, 0x027990f029623981, 0xcadcd4e59ef40c4d, 0x9abfd8766a33735c,
73 : : 0x0e3ea96b5304a7d0, 0xad0c42d6fc585992, 0x187306c89bc215a9, 0xd4a60abcf3792b95,
74 : : 0xf935451de4f21df2, 0xa9538f0419755787, 0xdb9acddff56ca510, 0xd06c98cd5c0975eb,
75 : : 0xe612a3cb9ecba951, 0xc766e62cfcadaf96, 0xee64435a9752fe72, 0xa192d576b245165a,
76 : : 0x0a8787bf8ecb74b2, 0x81b3e73d20b49b6f, 0x7fa8220ba3b2ecea, 0x245731c13ca42499,
77 : : 0xb78dbfaf3a8d83bd, 0xea1ad565322a1a0b, 0x60e61c23a3795013, 0x6606d7e446282b93,
78 : : 0x6ca4ecb15c5f91e1, 0x9f626da15c9625f3, 0xe51b38608ef25f57, 0x958a324ceb064572
79 : : };
80 : :
81 [ + - + - : 7 : BOOST_AUTO_TEST_CASE(siphash)
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82 : : {
83 : 1 : CSipHasher hasher(0x0706050403020100ULL, 0x0F0E0D0C0B0A0908ULL);
84 [ + - ]: 1 : BOOST_CHECK_EQUAL(hasher.Finalize(), 0x726fdb47dd0e0e31ull);
85 : 1 : static const unsigned char t0[1] = {0};
86 : 1 : hasher.Write(t0);
87 [ + - ]: 1 : BOOST_CHECK_EQUAL(hasher.Finalize(), 0x74f839c593dc67fdull);
88 : 1 : static const unsigned char t1[7] = {1,2,3,4,5,6,7};
89 : 1 : hasher.Write(t1);
90 [ + - ]: 1 : BOOST_CHECK_EQUAL(hasher.Finalize(), 0x93f5f5799a932462ull);
91 : 1 : hasher.Write(0x0F0E0D0C0B0A0908ULL);
92 [ + - ]: 1 : BOOST_CHECK_EQUAL(hasher.Finalize(), 0x3f2acc7f57c29bdbull);
93 : 1 : static const unsigned char t2[2] = {16,17};
94 : 1 : hasher.Write(t2);
95 [ + - ]: 1 : BOOST_CHECK_EQUAL(hasher.Finalize(), 0x4bc1b3f0968dd39cull);
96 : 1 : static const unsigned char t3[9] = {18,19,20,21,22,23,24,25,26};
97 : 1 : hasher.Write(t3);
98 [ + - ]: 1 : BOOST_CHECK_EQUAL(hasher.Finalize(), 0x2f2e6163076bcfadull);
99 : 1 : static const unsigned char t4[5] = {27,28,29,30,31};
100 : 1 : hasher.Write(t4);
101 [ + - ]: 1 : BOOST_CHECK_EQUAL(hasher.Finalize(), 0x7127512f72f27cceull);
102 : 1 : hasher.Write(0x2726252423222120ULL);
103 [ + - ]: 1 : BOOST_CHECK_EQUAL(hasher.Finalize(), 0x0e3ea96b5304a7d0ull);
104 : 1 : hasher.Write(0x2F2E2D2C2B2A2928ULL);
105 [ + - ]: 1 : BOOST_CHECK_EQUAL(hasher.Finalize(), 0xe612a3cb9ecba951ull);
106 : :
107 [ + - ]: 1 : BOOST_CHECK_EQUAL(SipHashUint256(0x0706050403020100ULL, 0x0F0E0D0C0B0A0908ULL, uint256{"1f1e1d1c1b1a191817161514131211100f0e0d0c0b0a09080706050403020100"}), 0x7127512f72f27cceull);
108 : :
109 : : // Check test vectors from spec, one byte at a time
110 : 1 : CSipHasher hasher2(0x0706050403020100ULL, 0x0F0E0D0C0B0A0908ULL);
111 [ + + ]: 65 : for (uint8_t x=0; x<std::size(siphash_4_2_testvec); ++x)
112 : : {
113 [ + - ]: 64 : BOOST_CHECK_EQUAL(hasher2.Finalize(), siphash_4_2_testvec[x]);
114 : 64 : hasher2.Write(Span{&x, 1});
115 : : }
116 : : // Check test vectors from spec, eight bytes at a time
117 : 1 : CSipHasher hasher3(0x0706050403020100ULL, 0x0F0E0D0C0B0A0908ULL);
118 [ + + ]: 9 : for (uint8_t x=0; x<std::size(siphash_4_2_testvec); x+=8)
119 : : {
120 [ + - ]: 8 : BOOST_CHECK_EQUAL(hasher3.Finalize(), siphash_4_2_testvec[x]);
121 : 8 : hasher3.Write(uint64_t(x)|(uint64_t(x+1)<<8)|(uint64_t(x+2)<<16)|(uint64_t(x+3)<<24)|
122 : 8 : (uint64_t(x+4)<<32)|(uint64_t(x+5)<<40)|(uint64_t(x+6)<<48)|(uint64_t(x+7)<<56));
123 : : }
124 : :
125 : 1 : HashWriter ss{};
126 : 1 : CMutableTransaction tx;
127 : : // Note these tests were originally written with tx.version=1
128 : : // and the test would be affected by default tx version bumps if not fixed.
129 : 1 : tx.version = 1;
130 [ + - ]: 1 : ss << TX_WITH_WITNESS(tx);
131 [ + - + - : 1 : BOOST_CHECK_EQUAL(SipHashUint256(1, 2, ss.GetHash()), 0x79751e980c2a0a35ULL);
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132 : :
133 : : // Check consistency between CSipHasher and SipHashUint256[Extra].
134 : 1 : FastRandomContext ctx;
135 [ + + ]: 17 : for (int i = 0; i < 16; ++i) {
136 : 16 : uint64_t k1 = ctx.rand64();
137 : 16 : uint64_t k2 = ctx.rand64();
138 : 16 : uint256 x = InsecureRand256();
139 : 16 : uint32_t n = ctx.rand32();
140 : 16 : uint8_t nb[4];
141 : 16 : WriteLE32(nb, n);
142 [ + - ]: 16 : CSipHasher sip256(k1, k2);
143 [ + - ]: 16 : sip256.Write(x);
144 : 16 : CSipHasher sip288 = sip256;
145 [ + - ]: 16 : sip288.Write(nb);
146 [ + - + - : 16 : BOOST_CHECK_EQUAL(SipHashUint256(k1, k2, x), sip256.Finalize());
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147 [ + - + - : 16 : BOOST_CHECK_EQUAL(SipHashUint256Extra(k1, k2, x, n), sip288.Finalize());
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148 : : }
149 : 2 : }
150 : :
151 : : BOOST_AUTO_TEST_SUITE_END()
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