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Merge a993a7c675 into merged_master (Elements PR #960)

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Several conflicts in the C++ code related to the new `flags` parameter
to `CheckSignature` and the corresponding function being renamed upstream
to `CheckSignatureECDSA`.

Several conflicts in the test harness as Steven sorta pulled the new
upstream ECKey module into the Python code, and the actual upstream
code was slightly different. Also needed to update the feature_taproot
code to always use the non-RANGEPROOF sighash since dynafed is not
enabled in the Taproot test.

Also had to pull the `set_wif` method out of `ECKey` and inline it because
otherwise it triggers a "circular inclusion" error between script.py (which
would pull in `base58_to_bytes` from address.py) and address.py (which now
pulls in some taproot EC related stuff from script.py).

Noticed that #960 does not test the "sighash rangeproof flag set but no
witnesses" case.
This commit is contained in:
Andrew Poelstra 2021-03-25 23:46:21 +00:00
commit 22cf380984
18 changed files with 410 additions and 65 deletions
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2
src/bench/verify_script.cpp
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@ -45,7 +45,7 @@ static void VerifyScriptBench(benchmark::Bench& bench)
txSpend.witness.vtxinwit.resize(1);
CScriptWitness& witness = txSpend.witness.vtxinwit[0].scriptWitness;
witness.stack.emplace_back();
key.Sign(SignatureHash(witScriptPubkey, txSpend, 0, SIGHASH_ALL, txCredit.vout[0].nValue, SigVersion::WITNESS_V0), witness.stack.back());
key.Sign(SignatureHash(witScriptPubkey, txSpend, 0, SIGHASH_ALL, txCredit.vout[0].nValue, SigVersion::WITNESS_V0, 0), witness.stack.back());
witness.stack.back().push_back(static_cast<unsigned char>(SIGHASH_ALL));
witness.stack.push_back(ToByteVector(pubkey));