j-bitcoin
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Comprehensive JavaScript/TypeScript Bitcoin (BTC) wallet library with custodial and non-custodial support, hierarchical deterministic keys, threshold signatures, and advanced cryptographic features
518 lines (441 loc) • 68.4 kB
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<title>src/wallet/non-custodial.js - J-Bitcoin - Bitcoin Wallet Library</title>
<meta name="description" content="JavaScript/TypeScript Bitcoin wallet library with HD wallets, threshold signatures, and BIP compliance" />
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<h2><a href="index.html">Home</a></h2><h2><a href="https://github.com/yfbsei/J-Bitcoin" target="_blank" class="menu-item home-link" id="home-link" >🏠 Home</a></h2><h2><a href="https://github.com/yfbsei/J-Bitcoin" target="_blank" class="menu-item github-link" id="github-link" >📚 GitHub</a></h2><h2><a href="https://www.npmjs.com/package/j-bitcoin" target="_blank" class="menu-item npm-link" id="npm-link" >📦 NPM</a></h2><h2><a href="https://github.com/yfbsei/J-Bitcoin/tree/main/examples" target="_blank" class="menu-item examples-link" id="examples-link" >🔧 Examples</a></h2><h2><a href="https://github.com/yfbsei/J-Bitcoin/blob/main/CHANGELOG.md" target="_blank" class="menu-item changelog-link" id="changelog-link" >📊 Changelog</a></h2><h3>Classes</h3><ul><li><a href="BIP143.html">BIP143</a><ul class='methods'><li data-type='method' style='display: none;'><a href="BIP143.html#.calculate">calculate</a></li><li data-type='method' style='display: none;'><a href="BIP143.html#.forP2WPKH">forP2WPKH</a></li><li data-type='method' style='display: none;'><a href="BIP143.html#.hashOutputs">hashOutputs</a></li><li data-type='method' style='display: none;'><a href="BIP143.html#.hashPrevouts">hashPrevouts</a></li><li data-type='method' style='display: none;'><a href="BIP143.html#.hashSequence">hashSequence</a></li></ul></li><li><a href="BIP322.html">BIP322</a><ul class='methods'><li data-type='method' style='display: none;'><a href="BIP322.html#.createToSign">createToSign</a></li><li data-type='method' style='display: none;'><a href="BIP322.html#.createToSpend">createToSpend</a></li><li data-type='method' style='display: none;'><a href="BIP322.html#.hashMessage">hashMessage</a></li><li data-type='method' style='display: none;'><a href="BIP322.html#.sign">sign</a></li><li data-type='method' style='display: none;'><a href="BIP322.html#.signLegacy">signLegacy</a></li><li data-type='method' style='display: none;'><a href="BIP322.html#.verify">verify</a></li><li data-type='method' style='display: none;'><a href="BIP322.html#.verifyLegacy">verifyLegacy</a></li></ul></li><li><a href="BIP322Error.html">BIP322Error</a></li><li><a href="BIP341.html">BIP341</a><ul class='methods'><li data-type='method' style='display: none;'><a href="BIP341.html#.calculate">calculate</a></li><li data-type='method' style='display: none;'><a href="BIP341.html#.forScriptPath">forScriptPath</a></li><li data-type='method' style='display: none;'><a href="BIP341.html#.shaAmounts">shaAmounts</a></li><li data-type='method' style='display: none;'><a href="BIP341.html#.shaOutputs">shaOutputs</a></li><li data-type='method' style='display: none;'><a href="BIP341.html#.shaPrevouts">shaPrevouts</a></li><li data-type='method' style='display: none;'><a href="BIP341.html#.shaScriptPubkeys">shaScriptPubkeys</a></li><li data-type='method' style='display: none;'><a href="BIP341.html#.shaSequences">shaSequences</a></li></ul></li><li><a href="BIP49.html">BIP49</a><ul class='methods'><li data-type='method' style='display: none;'><a href="BIP49.html#.createRedeemScript">createRedeemScript</a></li><li data-type='method' style='display: none;'><a href="BIP49.html#.createScriptPubKey">createScriptPubKey</a></li><li data-type='method' style='display: none;'><a href="BIP49.html#.getAccountPath">getAccountPath</a></li><li data-type='method' style='display: none;'><a href="BIP49.html#.getDerivationPath">getDerivationPath</a></li><li data-type='method' style='display: none;'><a href="BIP49.html#.toAddress">toAddress</a></li></ul></li><li><a href="CustodialWallet.html">CustodialWallet</a><ul class='methods'><li data-type='method' style='display: none;'><a href="CustodialWallet.html#canSign">canSign</a></li><li data-type='method' style='display: none;'><a href="CustodialWallet.html#clearCache">clearCache</a></li><li data-type='method' style='display: none;'><a href="CustodialWallet.html#createTransaction">createTransaction</a></li><li data-type='method' style='display: none;'><a href="CustodialWallet.html#deriveAddress">deriveAddress</a></li><li data-type='method' style='display: none;'><a href="CustodialWallet.html#destroy">destroy</a></li><li data-type='method' style='display: none;'><a href="CustodialWallet.html#exportWIF">exportWIF</a></li><li data-type='method' style='display: none;'><a href="CustodialWallet.html#getAddresses">getAddresses</a></li><li data-type='method' style='display: none;'><a href="CustodialWallet.html#getChangeAddress">getChangeAddress</a></li><li data-type='method' style='display: none;'><a href="CustodialWallet.html#getExtendedPrivateKey">getExtendedPrivateKey</a></li><li data-type='method' style='display: none;'><a href="CustodialWallet.html#getExtendedPublicKey">getExtendedPublicKey</a></li><li data-type='method' style='display: none;'><a href="CustodialWallet.html#getMnemonic">getMnemonic</a></li><li data-type='method' style='display: none;'><a href="CustodialWallet.html#getNetwork">getNetwork</a></li><li data-type='method' style='display: none;'><a href="CustodialWallet.html#getReceivingAddress">getReceivingAddress</a></li><li data-type='method' style='display: none;'><a href="CustodialWallet.html#signMessage">signMessage</a></li><li data-type='method' style='display: none;'><a href="CustodialWallet.html#signMessageBIP322">signMessageBIP322</a></li><li data-type='method' style='display: none;'><a href="CustodialWallet.html#signTransaction">signTransaction</a></li><li data-type='method' style='display: none;'><a href="CustodialWallet.html#toJSON">toJSON</a></li><li data-type='method' style='display: none;'><a href="CustodialWallet.html#verifyMessage">verifyMessage</a></li><li data-type='method' style='display: none;'><a href="CustodialWallet.html#.createNew">createNew</a></li><li data-type='method' style='display: none;'><a href="CustodialWallet.html#.fromExtendedKey">fromExtendedKey</a></li><li data-type='method' style='display: none;'><a href="CustodialWallet.html#.fromMnemonic">fromMnemonic</a></li><li data-type='method' style='display: none;'><a href="CustodialWallet.html#.fromSeed">fromSeed</a></li><li data-type='method' style='display: none;'><a href="CustodialWallet.html#.fromWIF">fromWIF</a></li></ul></li><li></li><li><a href="CustodialWalletError.html">CustodialWalletError</a></li><li></li><li><a href="DecodingError.html">DecodingError</a></li><li><a href="ECDSAError.html">ECDSAError</a></li><li></li><li><a href="EncodingError.html">EncodingError</a></li><li><a href="JVRSS.html">JVRSS</a><ul class='methods'><li data-type='method' style='display: none;'><a href="JVRSS.html#broadcastObfuscatedCoefficients">broadcastObfuscatedCoefficients</a></li><li data-type='method' style='display: none;'><a href="JVRSS.html#calculateSharedPublicKey">calculateSharedPublicKey</a></li><li data-type='method' style='display: none;'><a href="JVRSS.html#calculateShares">calculateShares</a></li><li data-type='method' style='display: none;'><a href="JVRSS.html#clear">clear</a></li><li data-type='method' style='display: none;'><a href="JVRSS.html#distributePolynomialPoints">distributePolynomialPoints</a></li><li data-type='method' style='display: none;'><a href="JVRSS.html#generatePolynomials">generatePolynomials</a></li><li data-type='method' style='display: none;'><a href="JVRSS.html#getParticipant">getParticipant</a></li><li data-type='method' style='display: none;'><a href="JVRSS.html#getSharesForInterpolation">getSharesForInterpolation</a></li><li data-type='method' style='display: none;'><a href="JVRSS.html#reconstructSecret">reconstructSecret</a></li><li data-type='method' style='display: none;'><a href="JVRSS.html#runProtocol">runProtocol</a></li><li data-type='method' style='display: none;'><a href="JVRSS.html#verifyAllShares">verifyAllShares</a></li></ul></li><li><a href="JVRSSError.html">JVRSSError</a></li><li><a href="LegacySighash.html">LegacySighash</a><ul class='methods'><li data-type='method' style='display: none;'><a href="LegacySighash.html#.calculate">calculate</a></li></ul></li><li><a href="MPCError.html">MPCError</a></li><li><a href="NonCustodialWallet.html">NonCustodialWallet</a><ul class='methods'><li data-type='method' style='display: none;'><a href="NonCustodialWallet.html#_exportShares">_exportShares</a></li><li data-type='method' style='display: none;'><a href="NonCustodialWallet.html#_reconstructPublicKey">_reconstructPublicKey</a></li><li data-type='method' style='display: none;'><a href="NonCustodialWallet.html#canSign">canSign</a></li><li data-type='method' style='display: none;'><a href="NonCustodialWallet.html#canSignHD">canSignHD</a></li><li data-type='method' style='display: none;'><a href="NonCustodialWallet.html#clear">clear</a></li><li data-type='method' style='display: none;'><a href="NonCustodialWallet.html#clearAddressCache">clearAddressCache</a></li><li data-type='method' style='display: none;'><a href="NonCustodialWallet.html#createTransaction">createTransaction</a></li><li data-type='method' style='display: none;'><a href="NonCustodialWallet.html#deriveAddress">deriveAddress</a></li><li data-type='method' style='display: none;'><a href="NonCustodialWallet.html#destroy">destroy</a></li><li data-type='method' style='display: none;'><a href="NonCustodialWallet.html#exportShares">exportShares</a></li><li data-type='method' style='display: none;'><a href="NonCustodialWallet.html#exportWIF">exportWIF</a></li><li data-type='method' style='display: none;'><a href="NonCustodialWallet.html#generateEphemeralKeys">generateEphemeralKeys</a></li><li data-type='method' style='display: none;'><a href="NonCustodialWallet.html#getAddress">getAddress</a></li><li data-type='method' style='display: none;'><a href="NonCustodialWallet.html#getAddressCount">getAddressCount</a></li><li data-type='method' style='display: none;'><a href="NonCustodialWallet.html#getAddresses">getAddresses</a></li><li data-type='method' style='display: none;'><a href="NonCustodialWallet.html#getChangeAddress">getChangeAddress</a></li><li data-type='method' style='display: none;'><a href="NonCustodialWallet.html#getExtendedPrivateKey">getExtendedPrivateKey</a></li><li data-type='method' style='display: none;'><a href="NonCustodialWallet.html#getExtendedPublicKey">getExtendedPublicKey</a></li><li data-type='method' style='display: none;'><a href="NonCustodialWallet.html#getMnemonic">getMnemonic</a></li><li data-type='method' style='display: none;'><a href="NonCustodialWallet.html#getNetwork">getNetwork</a></li><li data-type='method' style='display: none;'><a href="NonCustodialWallet.html#getPublicKey">getPublicKey</a></li><li data-type='method' style='display: none;'><a href="NonCustodialWallet.html#getReceivingAddress">getReceivingAddress</a></li><li data-type='method' style='display: none;'><a href="NonCustodialWallet.html#getShare">getShare</a></li><li data-type='method' style='display: none;'><a href="NonCustodialWallet.html#getShares">getShares</a></li><li data-type='method' style='display: none;'><a href="NonCustodialWallet.html#getThresholdConfig">getThresholdConfig</a></li><li data-type='method' style='display: none;'><a href="NonCustodialWallet.html#hasHD">hasHD</a></li><li data-type='method' style='display: none;'><a href="NonCustodialWallet.html#initialize">initialize</a></li><li data-type='method' style='display: none;'><a href="NonCustodialWallet.html#listAddresses">listAddresses</a></li><li data-type='method' style='display: none;'><a href="NonCustodialWallet.html#sign">sign</a></li><li data-type='method' style='display: none;'><a href="NonCustodialWallet.html#signMessage">signMessage</a></li><li data-type='method' style='display: none;'><a href="NonCustodialWallet.html#signMessageBIP322">signMessageBIP322</a></li><li data-type='method' style='display: none;'><a href="NonCustodialWallet.html#signMessageHD">signMessageHD</a></li><li data-type='method' style='display: none;'><a href="NonCustodialWallet.html#signTransaction">signTransaction</a></li><li data-type='method' style='display: none;'><a href="NonCustodialWallet.html#toJSON">toJSON</a></li><li data-type='method' style='display: none;'><a href="NonCustodialWallet.html#verify">verify</a></li><li data-type='method' style='display: none;'><a href="NonCustodialWallet.html#verifyMessageHD">verifyMessageHD</a></li><li data-type='method' style='display: none;'><a href="NonCustodialWallet.html#.createNew">createNew</a></li><li data-type='method' style='display: none;'><a href="NonCustodialWallet.html#.createNewHD">createNewHD</a></li><li data-type='method' style='display: none;'><a href="NonCustodialWallet.html#.fromExtendedKey">fromExtendedKey</a></li><li data-type='method' style='display: none;'><a href="NonCustodialWallet.html#.fromMnemonic">fromMnemonic</a></li><li data-type='method' style='display: none;'><a href="NonCustodialWallet.html#.fromSeed">fromSeed</a></li><li data-type='method' style='display: none;'><a href="NonCustodialWallet.html#.fromShares">fromShares</a></li><li data-type='method' style='display: none;'><a href="NonCustodialWallet.html#.fromWIF">fromWIF</a></li><li data-type='method' style='display: none;'><a href="NonCustodialWallet.html#.importShares">importShares</a></li></ul></li><li><a href="Participant.html">Participant</a><ul class='methods'><li data-type='method' style='display: none;'><a href="Participant.html#calculateKeyShare">calculateKeyShare</a></li><li data-type='method' style='display: none;'><a href="Participant.html#clear">clear</a></li><li data-type='method' style='display: none;'><a href="Participant.html#evaluateAt">evaluateAt</a></li><li data-type='method' style='display: none;'><a href="Participant.html#generatePolynomial">generatePolynomial</a></li><li data-type='method' style='display: none;'><a href="Participant.html#generateSignatureShare">generateSignatureShare</a></li><li data-type='method' style='display: none;'><a href="Participant.html#getBlindingShare">getBlindingShare</a></li><li data-type='method' style='display: none;'><a href="Participant.html#getKeyShare">getKeyShare</a></li><li data-type='method' style='display: none;'><a href="Participant.html#getKeySharePublicKey">getKeySharePublicKey</a></li><li data-type='method' style='display: none;'><a href="Participant.html#getNextEphemeralKey">getNextEphemeralKey</a></li><li data-type='method' style='display: none;'><a href="Participant.html#getObfuscatedCoefficients">getObfuscatedCoefficients</a></li><li data-type='method' style='display: none;'><a href="Participant.html#getPolynomialPointFor">getPolynomialPointFor</a></li><li data-type='method' style='display: none;'><a href="Participant.html#receivePolynomialPoint">receivePolynomialPoint</a></li><li data-type='method' style='display: none;'><a href="Participant.html#setBlindingShare">setBlindingShare</a></li><li data-type='method' style='display: none;'><a href="Participant.html#storeEphemeralKey">storeEphemeralKey</a></li><li data-type='method' style='display: none;'><a href="Participant.html#verifyPolynomialPoint">verifyPolynomialPoint</a></li></ul></li><li><a href="ParticipantError.html">ParticipantError</a></li><li><a href="ParticipantShare.html">ParticipantShare</a></li><li><a href="Polynomial.html">Polynomial</a><ul class='methods'><li data-type='method' style='display: none;'><a href="Polynomial.html#clear">clear</a></li><li data-type='method' style='display: none;'><a href="Polynomial.html#evaluate">evaluate</a></li><li data-type='method' style='display: none;'><a href="Polynomial.html#generateShares">generateShares</a></li><li data-type='method' style='display: none;'><a href="Polynomial.html#getCoefficients">getCoefficients</a></li><li data-type='method' style='display: none;'><a href="Polynomial.html#getSecret">getSecret</a></li><li data-type='method' style='display: none;'><a href="Polynomial.html#.interpolate">interpolate</a></li><li data-type='method' style='display: none;'><a href="Polynomial.html#.lagrangeCoefficient">lagrangeCoefficient</a></li><li data-type='method' style='display: none;'><a href="Polynomial.html#.reconstructSecret">reconstructSecret</a></li></ul></li><li><a href="PolynomialError.html">PolynomialError</a></li><li><a href="Schnorr.html">Schnorr</a><ul class='methods'><li data-type='method' style='display: none;'><a href="Schnorr.html#sign">sign</a></li></ul></li><li><a href="SchnorrError.html">SchnorrError</a></li><li></li><li><a href="ScriptBuilder.html">ScriptBuilder</a><ul class='methods'><li data-type='method' style='display: none;'><a href="ScriptBuilder.html#addOp">addOp</a></li><li data-type='method' style='display: none;'><a href="ScriptBuilder.html#build">build</a></li><li data-type='method' style='display: none;'><a href="ScriptBuilder.html#pushData">pushData</a></li><li data-type='method' style='display: none;'><a href="ScriptBuilder.html#pushNumber">pushNumber</a></li><li data-type='method' style='display: none;'><a href="ScriptBuilder.html#reset">reset</a></li><li data-type='method' style='display: none;'><a href="ScriptBuilder.html#.createCLTV">createCLTV</a></li><li data-type='method' style='display: none;'><a href="ScriptBuilder.html#.createCSV">createCSV</a></li><li data-type='method' style='display: none;'><a href="ScriptBuilder.html#.createMultisig">createMultisig</a></li><li data-type='method' style='display: none;'><a href="ScriptBuilder.html#.createOpReturn">createOpReturn</a></li><li data-type='method' style='display: none;'><a href="ScriptBuilder.html#.createP2PKH">createP2PKH</a></li><li data-type='method' style='display: none;'><a href="ScriptBuilder.html#.createP2PKHFromPubkey">createP2PKHFromPubkey</a></li><li data-type='method' style='display: none;'><a href="ScriptBuilder.html#.createP2PKHScriptSig">createP2PKHScriptSig</a></li><li data-type='method' style='display: none;'><a href="ScriptBuilder.html#.createP2SH">createP2SH</a></li><li data-type='method' style='display: none;'><a href="ScriptBuilder.html#.createP2SHScriptSig">createP2SHScriptSig</a></li><li data-type='method' style='display: none;'><a href="ScriptBuilder.html#.createP2TR">createP2TR</a></li><li data-type='method' style='display: none;'><a href="ScriptBuilder.html#.createP2WPKH">createP2WPKH</a></li><li data-type='method' style='display: none;'><a href="ScriptBuilder.html#.createP2WPKHFromPubkey">createP2WPKHFromPubkey</a></li><li data-type='method' style='display: none;'><a href="ScriptBuilder.html#.createP2WSH">createP2WSH</a></li><li data-type='method' style='display: none;'><a href="ScriptBuilder.html#.detectType">detectType</a></li><li data-type='method' style='display: none;'><a href="ScriptBuilder.html#.disassemble">disassemble</a></li><li data-type='method' style='display: none;'><a href="ScriptBuilder.html#.parse">parse</a></li></ul></li><li><a href="ScriptError.html">ScriptError</a></li><li><a href="SighashCalculator.html">SighashCalculator</a><ul class='methods'><li data-type='method' style='display: none;'><a href="SighashCalculator.html#.calculate">calculate</a></li></ul></li><li><a href="SighashError.html">SighashError</a></li><li><a href="TaggedHash.html">TaggedHash</a><ul class='methods'><li data-type='method' style='display: none;'><a href="TaggedHash.html#.create">create</a></li></ul></li><li><a href="ThresholdSignatureError.html">ThresholdSignatureError</a></li><li><a href="ThresholdSignatureScheme.html">ThresholdSignatureScheme</a><ul class='methods'><li data-type='method' style='display: none;'><a href="ThresholdSignatureScheme.html#clear">clear</a></li><li data-type='method' style='display: none;'><a href="ThresholdSignatureScheme.html#generateEphemeralKeys">generateEphemeralKeys</a></li><li data-type='method' style='display: none;'><a href="ThresholdSignatureScheme.html#generateSharedPrivateKey">generateSharedPrivateKey</a></li><li data-type='method' style='display: none;'><a href="ThresholdSignatureScheme.html#getConfig">getConfig</a></li><li data-type='method' style='display: none;'><a href="ThresholdSignatureScheme.html#getNextEphemeralKey">getNextEphemeralKey</a></li><li data-type='method' style='display: none;'><a href="ThresholdSignatureScheme.html#getPublicKey">getPublicKey</a></li><li data-type='method' style='display: none;'><a href="ThresholdSignatureScheme.html#sign">sign</a></li><li data-type='method' style='display: none;'><a href="ThresholdSignatureScheme.html#signMessage">signMessage</a></li><li data-type='method' style='display: none;'><a href="ThresholdSignatureScheme.html#verify">verify</a></li></ul></li><li><a href="TransactionBuilder.html">TransactionBuilder</a><ul class='methods'><li data-type='method' style='display: none;'><a href="TransactionBuilder.html#addInput">addInput</a></li><li data-type='method' style='display: none;'><a href="TransactionBuilder.html#addOpReturn">addOpReturn</a></li><li data-type='method' style='display: none;'><a href="TransactionBuilder.html#addOutput">addOutput</a></li><li data-type='method' style='display: none;'><a href="TransactionBuilder.html#addWitness">addWitness</a></li><li data-type='method' style='display: none;'><a href="TransactionBuilder.html#build">build</a></li><li data-type='method' style='display: none;'><a href="TransactionBuilder.html#calculateFee">calculateFee</a></li><li data-type='method' style='display: none;'><a href="TransactionBuilder.html#clone">clone</a></li><li data-type='method' style='display: none;'><a href="TransactionBuilder.html#enableRBF">enableRBF</a></li><li data-type='method' style='display: none;'><a href="TransactionBuilder.html#getTxid">getTxid</a></li><li data-type='method' style='display: none;'><a href="TransactionBuilder.html#getVirtualSize">getVirtualSize</a></li><li data-type='method' style='display: none;'><a href="TransactionBuilder.html#getWeight">getWeight</a></li><li data-type='method' style='display: none;'><a href="TransactionBuilder.html#getWtxid">getWtxid</a></li><li data-type='method' style='display: none;'><a href="TransactionBuilder.html#isFullySigned">isFullySigned</a></li><li data-type='method' style='display: none;'><a href="TransactionBuilder.html#reset">reset</a></li><li data-type='method' style='display: none;'><a href="TransactionBuilder.html#serialize">serialize</a></li><li data-type='method' style='display: none;'><a href="TransactionBuilder.html#setInputSequence">setInputSequence</a></li><li data-type='method' style='display: none;'><a href="TransactionBuilder.html#setLocktime">setLocktime</a></li><li data-type='method' style='display: none;'><a href="TransactionBuilder.html#setVersion">setVersion</a></li><li data-type='method' style='display: none;'><a href="TransactionBuilder.html#signAllInputs">signAllInputs</a></li><li data-type='method' style='display: none;'><a href="TransactionBuilder.html#signInput">signInput</a></li><li data-type='method' style='display: none;'><a href="TransactionBuilder.html#signInputs">signInputs</a></li><li data-type='method' style='display: none;'><a href="TransactionBuilder.html#toHex">toHex</a></li></ul></li><li></li><li><a href="TransactionBuilderError.html">TransactionBuilderError</a></li><li><a href="TransactionParseError.html">TransactionParseError</a></li><li><a href="TransactionParser.html">TransactionParser</a><ul class='methods'><li data-type='method' style='display: none;'><a href="TransactionParser.html#.fromBuffer">fromBuffer</a></li><li data-type='method' style='display: none;'><a href="TransactionParser.html#.fromHex">fromHex</a></li><li data-type='method' style='display: none;'><a href="TransactionParser.html#.getTxid">getTxid</a></li><li data-type='method' style='display: none;'><a href="TransactionParser.html#.serializeWithoutWitness">serializeWithoutWitness</a></li></ul></li><li><a href="ValidationError.html">ValidationError</a></li><li><a href="WitnessBuilder.html">WitnessBuilder</a><ul class='methods'><li data-type='method' style='display: none;'><a href="WitnessBuilder.html#.buildControlBlock">buildControlBlock</a></li><li data-type='method' style='display: none;'><a href="WitnessBuilder.html#.buildP2TRKeyPath">buildP2TRKeyPath</a></li><li data-type='method' style='display: none;'><a href="WitnessBuilder.html#.buildP2TRScriptPath">buildP2TRScriptPath</a></li><li data-type='method' style='display: none;'><a href="WitnessBuilder.html#.buildP2WPKH">buildP2WPKH</a></li><li data-type='method' style='display: none;'><a href="WitnessBuilder.html#.buildP2WSH">buildP2WSH</a></li><li data-type='method' style='display: none;'><a href="WitnessBuilder.html#.buildP2WSHMultisig">buildP2WSHMultisig</a></li><li data-type='method' style='display: none;'><a href="WitnessBuilder.html#.calculateTapbranchHash">calculateTapbranchHash</a></li><li data-type='method' style='display: none;'><a href="WitnessBuilder.html#.calculateTapleafHash">calculateTapleafHash</a></li><li data-type='method' style='display: none;'><a href="WitnessBuilder.html#.calculateTaptweak">calculateTaptweak</a></li><li data-type='method' style='display: none;'><a href="WitnessBuilder.html#.parse">parse</a></li><li data-type='method' style='display: none;'><a href="WitnessBuilder.html#.serialize">serialize</a></li><li data-type='method' style='display: none;'><a href="WitnessBuilder.html#.validate">validate</a></li></ul></li><li><a href="WitnessError.html">WitnessError</a></li></ul><h3>Namespaces</h3><ul><li><a href="BECH32.html">BECH32</a><ul class='methods'><li data-type='method' style='display: none;'><a href="BECH32.html#.decode">decode</a></li><li data-type='method' style='display: none;'><a href="BECH32.html#.getAddressType">getAddressType</a></li><li data-type='method' style='display: none;'><a href="BECH32.html#.getPrefix">getPrefix</a></li><li data-type='method' style='display: none;'><a href="BECH32.html#.to_P2TR">to_P2TR</a></li><li data-type='method' style='display: none;'><a href="BECH32.html#.to_P2WPKH">to_P2WPKH</a></li><li data-type='method' style='display: none;'><a href="BECH32.html#.to_P2WSH">to_P2WSH</a></li><li data-type='method' style='display: none;'><a href="BECH32.html#.validate">validate</a></li></ul></li><li><a href="BIP39.html">BIP39</a><ul class='methods'><li data-type='method' style='display: none;'><a href="BIP39.html#.deriveSeed">deriveSeed</a></li><li data-type='method' style='display: none;'><a href="BIP39.html#.generateMnemonic">generateMnemonic</a></li><li data-type='method' style='display: none;'><a href="BIP39.html#.getWordList">getWordList</a></li><li data-type='method' style='display: none;'><a href="BIP39.html#.mnemonicToEntropy">mnemonicToEntropy</a></li><li data-type='method' style='display: none;'><a href="BIP39.html#.validateChecksum">validateChecksum</a></li><li data-type='method' style='display: none;'><a href="BIP39.html#.validateMnemonic">validateMnemonic</a></li></ul></li><li><a href="ECDSA.html">ECDSA</a><ul class='methods'><li data-type='method' style='display: none;'><a href="ECDSA.html#.getPublicKey">getPublicKey</a></li><li data-type='method' style='display: none;'><a href="ECDSA.html#.recoverPublicKey">recoverPublicKey</a></li><li data-type='method' style='display: none;'><a href="ECDSA.html#.sign">sign</a></li><li data-type='method' style='display: none;'><a href="ECDSA.html#.signMessage">signMessage</a></li><li data-type='method' style='display: none;'><a href="ECDSA.html#.verify">verify</a></li><li data-type='method' style='display: none;'><a href="ECDSA.html#.verifyMessage">verifyMessage</a></li></ul></li></ul><h3>Global</h3><ul><li><a href="global.html#ADDRESS_FORMATS">ADDRESS_FORMATS</a></li><li><a href="global.html#ADDRESS_TYPE_PURPOSE">ADDRESS_TYPE_PURPOSE</a></li><li><a href="global.html#ADDSS">ADDSS</a></li><li><a href="global.html#BECH32_PREFIXES">BECH32_PREFIXES</a></li><li><a href="global.html#BIP322_CONSTANTS">BIP322_CONSTANTS</a></li><li><a href="global.html#BIP32_CONSTANTS">BIP32_CONSTANTS</a></li><li><a href="global.html#BIP340_CONSTANTS">BIP340_CONSTANTS</a></li><li><a href="global.html#BIP39_CONSTANTS">BIP39_CONSTANTS</a></li><li><a href="global.html#BIP44_CONSTANTS">BIP44_CONSTANTS</a></li><li><a href="global.html#BIP49_CONSTANTS">BIP49_CONSTANTS</a></li><li><a href="global.html#BIP_COMPLIANCE">BIP_COMPLIANCE</a></li><li><a href="global.html#BIP_PURPOSES">BIP_PURPOSES</a></li><li><a href="global.html#CRYPTO_CONSTANTS">CRYPTO_CONSTANTS</a></li><li><a href="global.html#CURVE_ORDER">CURVE_ORDER</a></li><li><a href="global.html#ENCODING_CONSTANTS">ENCODING_CONSTANTS</a></li><li><a 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<div id="main">
<h1 class="page-title">src/wallet/non-custodial.js</h1>
<section>
<article>
<pre class="prettyprint source linenums"><code>/**
* @fileoverview Non-Custodial Wallet with Threshold Signature Scheme
* @description Implements a non-custodial wallet using the nChain TSS protocol
* for distributed key management and threshold signing.
* @version 1.0.0
* @author yfbsei
* @license ISC
*/
import { secp256k1 } from '@noble/curves/secp256k1';
import BN from 'bn.js';
import {
ThresholdSignatureScheme,
createThresholdScheme,
Polynomial,
CURVE_ORDER
} from '../core/crypto/signatures/threshold/index.js';
// HD Derivation imports
import { BIP39 } from '../bip/bip39/mnemonic.js';
import { generateMasterKey } from '../bip/bip32/master-key.js';
import { derive } from '../bip/bip32/derive.js';
import { BECH32 } from '../bip/BIP173-BIP350.js';
import { encodeP2PKH, encodeP2SH, encodeWIF, hash160 } from '../encoding/address/encode.js';
import { decodeWIFPrivateKey } from '../encoding/address/decode.js';
import { ScriptBuilder } from '../transaction/script-builder.js';
import { TransactionBuilder } from '../transaction/builder.js';
import { BIP322 } from '../transaction/message-signing.js';
import { ECDSA } from '../core/crypto/signatures/ecdsa.js';
import { THRESHOLD_CONSTANTS } from '../core/constants.js';
/**
* Address type mapping to BIP purpose
* @constant {Object}
*/
const ADDRESS_TYPE_PURPOSE = {
legacy: 44, // BIP44 - P2PKH
'wrapped-segwit': 49, // BIP49 - P2SH-P2WPKH
segwit: 84, // BIP84 - P2WPKH
taproot: 86 // BIP86 - P2TR
};
class NonCustodialWalletError extends Error {
constructor(message, solution = 'Check threshold configuration') {
super(message);
this.name = 'NonCustodialWalletError';
this.solution = solution;
this.timestamp = new Date().toISOString();
}
}
/**
* Represents a participant's key share for export/import
*/
class ParticipantShare {
constructor(index, keyShare, publicKeyShare = null) {
this.index = index;
this.keyShare = keyShare instanceof BN ? keyShare : new BN(keyShare, 'hex');
this.publicKeyShare = publicKeyShare;
}
toJSON() {
return {
index: this.index,
keyShare: this.keyShare.toString('hex'),
publicKeyShare: this.publicKeyShare ? this.publicKeyShare.toString('hex') : null
};
}
static fromJSON(json) {
return new ParticipantShare(
json.index,
json.keyShare,
json.publicKeyShare ? Buffer.from(json.publicKeyShare, 'hex') : null
);
}
}
/**
* Non-Custodial Wallet using nChain Threshold Signature Scheme
*
* This wallet distributes key management across multiple participants,
* requiring a threshold number to sign transactions.
*
* Parameters:
* - n: Total number of participants
* - t: Threshold polynomial degree (t+1 to reconstruct, 2t+1 to sign)
*
* Common configurations:
* - 2-of-3: n=3, t=1 (3 participants, 3 needed to sign)
* - 3-of-5: n=5, t=2 (5 participants, 5 needed to sign)
*
* Note: Due to the INVSS protocol, signing requires 2t+1 participants.
*/
class NonCustodialWallet {
/**
* Create a new non-custodial wallet
* @param {string} network - 'main' or 'test'
* @param {number} n - Total number of participants
* @param {number} t - Threshold polynomial degree
*/
constructor(network, n, t) {
// Validate parameters
if (n < 2) {
throw new NonCustodialWalletError(
'Need at least 2 participants',
'Increase participant count'
);
}
if (t < 1) {
throw new NonCustodialWalletError(
'Threshold degree must be at least 1',
'Increase threshold'
);
}
// Signing requires 2t+1 participants
if (2 * t + 1 > n) {
throw new NonCustodialWalletError(
`Signing requires ${2 * t + 1} participants (2t+1), but only ${n} available`,
'Increase participants or decrease threshold'
);
}
if (n > THRESHOLD_CONSTANTS.MAX_PARTICIPANTS) {
throw new NonCustodialWalletError(
`Participants cannot exceed ${THRESHOLD_CONSTANTS.MAX_PARTICIPANTS}`,
'Reduce participant count'
);
}
this.network = network === 'main' ? 'main' : 'test';
this.n = n;
this.t = t;
this.signingThreshold = 2 * t + 1;
this.reconstructionThreshold = t + 1;
// TSS scheme instance
this.scheme = null;
// Exported shares for backup/distribution
this.exportedShares = [];
// Aggregate public key
this.aggregatePublicKey = null;
// HD Wallet properties
/** @type {Object|null} BIP32 master keys (extendedPrivateKey, extendedPublicKey) */
this.masterKeys = null;
/** @type {string|null} BIP39 mnemonic phrase */
this.mnemonic = null;
/** @type {Map<string, Object>} Cache of derived addresses */
this.derivedAddresses = new Map();
this.version = '2.0.0';
this.created = Date.now();
}
/**
* Create a new wallet with fresh key generation
* @param {string} network - Network type
* @param {number} n - Total participants (default 3)
* @param {number} t - Threshold degree (default 1, meaning 3-of-3 for signing)
* @param {number} ephemeralKeyCount - Pre-generated ephemeral keys
* @returns {{wallet: NonCustodialWallet, shares: Array}} Wallet and shares
*/
static createNew(network = 'main', n = 3, t = 1, ephemeralKeyCount = 10) {
const wallet = new NonCustodialWallet(network, n, t);
wallet.initialize(ephemeralKeyCount);
return {
wallet,
shares: wallet.getShares(),
config: wallet.getThresholdConfig()
};
}
/**
* Create a new HD wallet with fresh mnemonic and TSS key generation
* @param {string} network - Network type ('main' or 'test')
* @param {number} n - Total participants (default 3)
* @param {number} t - Threshold degree (default 1)
* @param {number} strength - Mnemonic strength (128, 160, 192, 224, 256)
* @param {number} ephemeralKeyCount - Pre-generated ephemeral keys
* @returns {{wallet: NonCustodialWallet, mnemonic: string, shares: Array, config: Object}}
*/
static createNewHD(network = 'main', n = 3, t = 1, strength = 256, ephemeralKeyCount = 10) {
try {
const mnemonicResult = BIP39.generateMnemonic(strength);
const mnemonic = mnemonicResult.mnemonic;
const seed = BIP39.deriveSeed(mnemonic);
const [masterKeys] = generateMasterKey(seed, network);
const wallet = new NonCustodialWallet(network, n, t);
wallet.masterKeys = masterKeys;
wallet.mnemonic = mnemonic;
wallet.initialize(ephemeralKeyCount);
return {
wallet,
mnemonic,
shares: wallet.getShares(),
config: wallet.getThresholdConfig()
};
} catch (error) {
throw new NonCustodialWalletError(
`Failed to create HD wallet: ${error.message}`,
'Ensure crypto module is available'
);
}
}
/**
* Restore an HD wallet from a BIP39 mnemonic phrase
* @param {string} network - Network type ('main' or 'test')
* @param {string} mnemonic - BIP39 mnemonic phrase (12-24 words)
* @param {number} n - Total participants
* @param {number} t - Threshold degree
* @param {string} passphrase - Optional BIP39 passphrase
* @param {number} ephemeralKeyCount - Pre-generated ephemeral keys
* @returns {NonCustodialWallet} Restored wallet
*/
static fromMnemonic(network, mnemonic, n = 3, t = 1, passphrase = '', ephemeralKeyCount = 10) {
try {
if (!BIP39.validateChecksum(mnemonic)) {
throw new Error('Invalid mnemonic checksum');
}
const seed = BIP39.deriveSeed(mnemonic, passphrase);
const [masterKeys] = generateMasterKey(seed, network);
const wallet = new NonCustodialWallet(network, n, t);
wallet.masterKeys = masterKeys;
wallet.mnemonic = mnemonic;
wallet.initialize(ephemeralKeyCount);
return wallet;
} catch (error) {
throw new NonCustodialWalletError(
`Failed to restore wallet from mnemonic: ${error.message}`,
'Verify mnemonic phrase is correct'
);
}
}
/**
* Create an HD wallet from a raw seed
* @param {string} network - Network type ('main' or 'test')
* @param {string|Buffer} seed - 64-byte seed as hex string or Buffer
* @param {number} n - Total participants
* @param {number} t - Threshold degree
* @param {number} ephemeralKeyCount - Pre-generated ephemeral keys
* @returns {NonCustodialWallet} Wallet instance
*/
static fromSeed(network, seed, n = 3, t = 1, ephemeralKeyCount = 10) {
try {
const [masterKeys] = generateMasterKey(seed, network);
const wallet = new NonCustodialWallet(network, n, t);
wallet.masterKeys = masterKeys;
wallet.initialize(ephemeralKeyCount);
return wallet;
} catch (error) {
throw new NonCustodialWalletError(
`Failed to create wallet from seed: ${error.message}`,
'Verify seed is valid hex string'
);
}
}
/**
* Create a wallet from an extended key (xprv/xpub/tprv/tpub)
* Note: TSS is still used for signing; HD is for address derivation only
* @param {string} network - Network type ('main' or 'test')
* @param {string} extendedKey - BIP32 extended key
* @param {number} n - Total participants
* @param {number} t - Threshold degree
* @param {number} ephemeralKeyCount - Pre-generated ephemeral keys
* @returns {NonCustodialWallet} Wallet instance
*/
static fromExtendedKey(network, extendedKey, n = 3, t = 1, ephemeralKeyCount = 10) {
try {
const masterKeys = {
extendedPrivateKey: extendedKey.startsWith('xprv') || extendedKey.startsWith('tprv')
? extendedKey
: null,
extendedPublicKey: extendedKey.startsWith('xpub') || extendedKey.startsWith('tpub')
? extendedKey
: null
};
if (!masterKeys.extendedPrivateKey && !masterKeys.extendedPublicKey) {
throw new Error('Invalid extended key format');
}
const wallet = new NonCustodialWallet(network, n, t);
wallet.masterKeys = masterKeys;
wallet.initialize(ephemeralKeyCount);
return wallet;
} catch (error) {
throw new NonCustodialWalletError(
`Failed to create wallet from extended key: ${error.message}`,
'Verify extended key format'
);
}
}
/**
* Create a wallet from a WIF private key (single-key mode for HD addresses)
* Note: TSS is still used for aggregate key; WIF enables single-key HD derivation
* @param {string} wif - WIF-encoded private key
* @param {number} n - Total participants for TSS
* @param {number} t - Threshold degree
* @param {number} ephemeralKeyCount - Pre-generated ephemeral keys
* @returns {NonCustodialWallet} Wallet instance
*/
static fromWIF(wif, n = 3, t = 1, ephemeralKeyCount = 10) {
try {
const decoded = decodeWIFPrivateKey(wif);
const wallet = new NonCustodialWallet(decoded.network, n, t);
// Store single key info for single-key mode
wallet.masterKeys = {
extendedPrivateKey: null,
extendedPublicKey: null,
singlePrivateKey: decoded.privateKey,
compressed: decoded.compressed
};
wallet._singleKeyMode = true;
wallet.initialize(ephemeralKeyCount);
return wallet;
} catch (error) {
throw new NonCustodialWalletError(
`Failed to import WIF: ${error.message}`,
'Verify WIF format is correct'
);
}
}
/**
* Initialize the wallet with TSS key generation
* @param {number} ephemeralKeyCount - Number of ephemeral keys to pre-generate
*/
initialize(ephemeralKeyCount = 10) {
// Create and initialize the threshold scheme
this.scheme = createThresholdScheme(this.n, this.t, ephemeralKeyCount);
this.aggregatePublicKey = this.scheme.getPublicKey();
// Export shares for distribution
this._exportShares();
}
/**
* Export shares from the internal scheme for backup
*/
_exportShares() {
if (!this.scheme) return;
this.exportedShares = this.scheme.privateKeyShares.map(share =>
new ParticipantShare(
share.index,
share.keyShare,
share.publicKeyShare
)
);
}
/**
* Restore wallet from exported shares (limited functionality)
* Note: Full signing requires the complete JVRSS state
* @param {string} network - Network type
* @param {Array} shares - Exported shares
* @param {number} t - Threshold degree
* @returns {NonCustodialWallet} Restored wallet
*/
static fromShares(network, shares, t) {
const n = shares.length;
const wallet = new NonCustodialWallet(network, n, t);
wallet.exportedShares = shares.map(s =>
s instanceof ParticipantShare ? s : ParticipantShare.fromJSON(s)
);
// Reconstruct public key from shares
wallet._reconstructPublicKey();
return wallet;
}
/**
* Reconstruct the aggregate public key from shares
*/
_reconstructPublicKey() {
if (this.exportedShares.length < this.reconstructionThreshold) {
throw new NonCustodialWalletError(
`Need at least ${this.reconstructionThreshold} shares to reconstruct`,
'Provide more shares'
);
}
const selectedShares = this.exportedShares.slice(0, this.reconstructionThreshold);
const secret = Polynomial.reconstructSecret(
selectedShares.map(s => ({ x: new BN(s.index), y: s.keyShare }))
);
const secretBuffer = secret.toArrayLike(Buffer, 'be', 32);
this.aggregatePublicKey = Buffer.from(
secp256k1.getPublicKey(secretBuffer, true)
);
}
/**
* Get wallet address
* @param {string} type - 'segwit' or 'taproot'
* @returns {string} Bitcoin address
*/
getAddress(type = 'segwit') {
if (!this.aggregatePublicKey) {
throw new NonCustodialWalletError('Wallet not initialized');
}
const publicKeyHex = this.aggregatePublicKey.toString('hex');
switch (type) {
case 'taproot':
const xOnlyPubKey = this.aggregatePublicKey.slice(1);
return BECH32.to_P2TR(xOnlyPubKey, this.network);
case 'segwit':
default:
return BECH32.to_P2WPKH(publicKeyHex, this.network);
}
}
/**
* Derive an HD address at the specified BIP path
* Requires HD wallet initialization via createNewHD(), fromMnemonic(), or fromSeed()
* @param {number} account - Account index (hardened)
* @param {number} change - Change index (0=external/receiving, 1=internal/change)
* @param {number} index - Address index
* @param {string} type - Address type ('legacy', 'wrapped-segwit', 'segwit', 'taproot')
* @returns {Object} Derived address details
*/
deriveAddress(account = 0, change = 0, index = 0, type = 'segwit') {
if (!this.masterKeys) {
throw new NonCustodialWalletError(
'HD derivation not available',
'Use createNewHD(), fromMnemonic(), or fromSeed() for HD support'
);
}
// Handle single-key mode (WIF import)
if (this._singleKeyMode) {
return this._deriveSingleKeyAddress(type);
}
const cacheKey = `${type}:${account}:${change}:${index}`;
if (this.derivedAddresses.has(cacheKey)) {
return this.derivedAddresses.get(cacheKey);