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txbuilder: re-add verification optimizations

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This commit is contained in:
Daniel Cousens 2015-03-13 15:42:13 +11:00
parent 4660b84c2d
commit 6c02e1692a
1 changed files with 7 additions and 1 deletions
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8
src/transaction_builder.js
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@ -373,14 +373,20 @@ TransactionBuilder.prototype.sign = function (index, privKey, redeemScript, hash
// enforce signature order matches public keys // enforce signature order matches public keys
if (input.scriptType === 'multisig' && input.redeemScript && input.signatures.length !== input.pubKeys.length) { if (input.scriptType === 'multisig' && input.redeemScript && input.signatures.length !== input.pubKeys.length) {
// maintain a local copy of unmatched signatures
var unmatched = input.signatures.slice()
input.signatures = input.pubKeys.map(function (pubKey) { input.signatures = input.pubKeys.map(function (pubKey) {
var match var match
// check for any matching signatures // check for any matching signatures
input.signatures.some(function (signature) { unmatched.some(function (signature, i) {
if (!pubKey.verify(signatureHash, signature)) return false if (!pubKey.verify(signatureHash, signature)) return false
match = signature match = signature
// remove matched signature from unmatched
unmatched.splice(i, 1)
return true return true
}) })