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Switch FastRandomContext to ChaCha20

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This commit is contained in:
Pieter Wuille
2017-02-15 17:45:22 -08:00
parent e04326fe66
commit 16329224e7
10 changed files with 126 additions and 43 deletions
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21
src/test/random_tests.cpp
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@@ -15,5 +15,24 @@ BOOST_AUTO_TEST_CASE(osrandom_tests)
BOOST_CHECK(Random_SanityCheck());
}
BOOST_AUTO_TEST_SUITE_END()
BOOST_AUTO_TEST_CASE(fastrandom_tests)
{
// Check that deterministic FastRandomContexts are deterministic
FastRandomContext ctx1(true);
FastRandomContext ctx2(true);
BOOST_CHECK_EQUAL(ctx1.rand32(), ctx2.rand32());
BOOST_CHECK_EQUAL(ctx1.rand32(), ctx2.rand32());
BOOST_CHECK_EQUAL(ctx1.rand64(), ctx2.rand64());
BOOST_CHECK_EQUAL(ctx1.randbits(3), ctx2.randbits(3));
BOOST_CHECK_EQUAL(ctx1.randbits(7), ctx2.randbits(7));
BOOST_CHECK_EQUAL(ctx1.rand32(), ctx2.rand32());
BOOST_CHECK_EQUAL(ctx1.randbits(3), ctx2.randbits(3));
// Check that a nondeterministic ones are not
FastRandomContext ctx3;
FastRandomContext ctx4;
BOOST_CHECK(ctx3.rand64() != ctx4.rand64()); // extremely unlikely to be equal
}
BOOST_AUTO_TEST_SUITE_END()