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script/sign: signing support for Miniscripts with hash preimage challenges

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Preimages must be externally provided (typically, via a PSBT).
This commit is contained in:
Antoine Poinsot
2021-12-04 14:39:24 +01:00
parent a2f81b6a8f
commit 560e62b1e2
9 changed files with 109 additions and 37 deletions
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6
src/test/fuzz/script_sign.cpp
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@@ -109,10 +109,12 @@ FUZZ_TARGET_INIT(script_sign, initialize_script_sign)
CMutableTransaction script_tx_to = tx_to;
CMutableTransaction sign_transaction_tx_to = tx_to;
if (n_in < tx_to.vin.size() && tx_to.vin[n_in].prevout.n < tx_from.vout.size()) {
(void)SignSignature(provider, tx_from, tx_to, n_in, fuzzed_data_provider.ConsumeIntegral<int>());
SignatureData empty;
(void)SignSignature(provider, tx_from, tx_to, n_in, fuzzed_data_provider.ConsumeIntegral<int>(), empty);
}
if (n_in < script_tx_to.vin.size()) {
(void)SignSignature(provider, ConsumeScript(fuzzed_data_provider), script_tx_to, n_in, ConsumeMoney(fuzzed_data_provider), fuzzed_data_provider.ConsumeIntegral<int>());
SignatureData empty;
(void)SignSignature(provider, ConsumeScript(fuzzed_data_provider), script_tx_to, n_in, ConsumeMoney(fuzzed_data_provider), fuzzed_data_provider.ConsumeIntegral<int>(), empty);
MutableTransactionSignatureCreator signature_creator{tx_to, n_in, ConsumeMoney(fuzzed_data_provider), fuzzed_data_provider.ConsumeIntegral<int>()};
std::vector<unsigned char> vch_sig;
CKeyID address;