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Differential D19041 Diff 56874 src/random.cpp

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src/random.cpp

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void FastRandomContext::RandomSeed() { void FastRandomContext::RandomSeed() {
uint256 seed = GetRandHash(); uint256 seed = GetRandHash();
rng.SetKey(MakeByteSpan(seed)); rng.SetKey(MakeByteSpan(seed));
requires_seed = false; requires_seed = false;
} }
uint160 FastRandomContext::rand160() noexcept { uint160 FastRandomContext::rand160() noexcept {
if (requires_seed) {
RandomSeed();
}
uint160 ret; uint160 ret;
rng.Keystream(MakeWritableByteSpan(ret)); fillrand(MakeWritableByteSpan(ret));
return ret; return ret;
} }
uint256 FastRandomContext::rand256() noexcept { uint256 FastRandomContext::rand256() noexcept {
if (requires_seed) {
RandomSeed();
}
uint256 ret; uint256 ret;
rng.Keystream(MakeWritableByteSpan(ret)); fillrand(MakeWritableByteSpan(ret));
return ret; return ret;
} }
template <typename B> std::vector<B> FastRandomContext::randbytes(size_t len) { template <typename B> std::vector<B> FastRandomContext::randbytes(size_t len) {
std::vector<B> ret(len); std::vector<B> ret(len);
fillrand(MakeWritableByteSpan(ret)); fillrand(MakeWritableByteSpan(ret));
return ret; return ret;
} }
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