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Add FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION in PoW check

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To avoid PoW being a blocker for fuzz tests,
`FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION` is used in fuzz builds to
bypass the actual PoW validation in `CheckProofOfWork`. It's
replaced with a check on the last byte of the hash, which allows the
fuzzer to quickly generate (in)valid blocks by checking a single bit,
rather than performing the full PoW computation.

If PoW is the target of a fuzz test, then it should call
`CheckProofOfWorkImpl`.
This commit is contained in:
marcofleon 2024-08-13 11:42:59 +01:00
parent a3f6f5acd8
commit a0eaa4749f
4 changed files with 14 additions and 2 deletions
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2
src/test/fuzz/integer.cpp
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@ -69,7 +69,7 @@ FUZZ_TARGET(integer, .init = initialize_integer)
const bool b = fuzzed_data_provider.ConsumeBool();
const Consensus::Params& consensus_params = Params().GetConsensus();
(void)CheckProofOfWork(u256, u32, consensus_params);
(void)CheckProofOfWorkImpl(u256, u32, consensus_params);
if (u64 <= MAX_MONEY) {
const uint64_t compressed_money_amount = CompressAmount(u64);
assert(u64 == DecompressAmount(compressed_money_amount));