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authorPieter Wuille <pieter.wuille@gmail.com>2017-04-25 11:29:16 -0700
committerPieter Wuille <pieter.wuille@gmail.com>2017-05-26 13:24:25 -0700
commit7e0032290669fae5f52c256856c53038511c7db4 (patch)
tree99c8556e0817c0edb36d86cc3196073407539ae5 /src/test
parente484652fc36ef7135cf08ad380ea7142b6cbadc0 (diff)
Add specialization of SipHash for 256 + 32 bit data
We'll need a version of SipHash for tuples of 256 bits and 32 bits data, when CCoinsViewCache switches from using txids to COutPoints as keys.
Diffstat (limited to 'src/test')
-rw-r--r--src/test/hash_tests.cpp17
1 files changed, 17 insertions, 0 deletions
diff --git a/src/test/hash_tests.cpp b/src/test/hash_tests.cpp
index d8de765db1..bb7e473248 100644
--- a/src/test/hash_tests.cpp
+++ b/src/test/hash_tests.cpp
@@ -128,6 +128,23 @@ BOOST_AUTO_TEST_CASE(siphash)
tx.nVersion = 1;
ss << tx;
BOOST_CHECK_EQUAL(SipHashUint256(1, 2, ss.GetHash()), 0x79751e980c2a0a35ULL);
+
+ // Check consistency between CSipHasher and SipHashUint256[Extra].
+ FastRandomContext ctx;
+ for (int i = 0; i < 16; ++i) {
+ uint64_t k1 = ctx.rand64();
+ uint64_t k2 = ctx.rand64();
+ uint256 x = GetRandHash();
+ uint32_t n = ctx.rand32();
+ uint8_t nb[4];
+ WriteLE32(nb, n);
+ CSipHasher sip256(k1, k2);
+ sip256.Write(x.begin(), 32);
+ CSipHasher sip288 = sip256;
+ sip288.Write(nb, 4);
+ BOOST_CHECK_EQUAL(SipHashUint256(k1, k2, x), sip256.Finalize());
+ BOOST_CHECK_EQUAL(SipHashUint256Extra(k1, k2, x, n), sip288.Finalize());
+ }
}
BOOST_AUTO_TEST_SUITE_END()