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Merge pull request #1430 from bigspider/psbtv0-fix-signing-algo

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PSBTv0: Update Simple Signer Algorithm for SegWitv0 inputs
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kallewoof 2023-03-08 12:57:13 +09:00 committed by GitHub
commit 4e4db8ba12
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1 changed files with 9 additions and 9 deletions
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bip-0174.mediawiki
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@ -718,15 +718,8 @@ sign_non_witness(script_code, i):
if IsMine(key) and IsAcceptable(sighash_type):
sign(non_witness_sighash(script_code, i, input))
for input,i in enumerate(psbt.inputs):
if non_witness_utxo.exists:
assert(sha256d(non_witness_utxo) == psbt.tx.input[i].prevout.hash)
if redeemScript.exists:
assert(non_witness_utxo.vout[psbt.tx.input[i].prevout.n].scriptPubKey == P2SH(redeemScript))
sign_non_witness(redeemScript, i)
else:
sign_non_witness(non_witness_utxo.vout[psbt.tx.input[i].prevout.n].scriptPubKey, i)
else if witness_utxo.exists:
for input, i in enumerate(psbt.inputs):
if witness_utxo.exists:
if redeemScript.exists:
assert(witness_utxo.scriptPubKey == P2SH(redeemScript))
script = redeemScript
@ -737,6 +730,13 @@ for input,i in enumerate(psbt.inputs):
else if IsP2WSH(script):
assert(script == P2WSH(witnessScript))
sign_witness(witnessScript, i)
else if non_witness_utxo.exists:
assert(sha256d(non_witness_utxo) == psbt.tx.input[i].prevout.hash)
if redeemScript.exists:
assert(non_witness_utxo.vout[psbt.tx.input[i].prevout.n].scriptPubKey == P2SH(redeemScript))
sign_non_witness(redeemScript, i)
else:
sign_non_witness(non_witness_utxo.vout[psbt.tx.input[i].prevout.n].scriptPubKey, i)
else:
assert False
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