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SideChain: stricter checks in get_difficulty

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SChernykh 2023-03-24 13:23:20 +01:00
parent eef90da7ae
commit 645de31fe3
1 changed files with 5 additions and 1 deletions
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6
src/side_chain.cpp
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@ -1201,7 +1201,11 @@ bool SideChain::get_difficulty(const PoolBlock* tip, std::vector<DifficultyData>
std::nth_element(tmpTimestamps.begin(), tmpTimestamps.begin() + index2, tmpTimestamps.end());
const uint64_t timestamp2 = oldest_timestamp + tmpTimestamps[index2];
const uint64_t delta_t = (timestamp2 > timestamp1) ? (timestamp2 - timestamp1) : 1;
// Make a reasonable assumption that each block has higher timestamp, so delta_t can't be less than delta_index
// Because if it is, someone is trying to mess with timestamps
// In reality, delta_t ~ delta_index*10 (sidechain block time)
const uint64_t delta_index = (index2 > index1) ? (index2 - index1) : 1U;
const uint64_t delta_t = (timestamp2 > timestamp1 + delta_index) ? (timestamp2 - timestamp1) : delta_index;
difficulty_type diff1{ std::numeric_limits<uint64_t>::max(), std::numeric_limits<uint64_t>::max() };
difficulty_type diff2{ 0, 0 };