144 lines
4.9 KiB
JavaScript
144 lines
4.9 KiB
JavaScript
/* global describe, it, beforeEach */
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var assert = require('assert')
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var bitcoin = require('../../')
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var blockchain = require('./_blockchain')
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describe('bitcoinjs-lib (advanced)', function () {
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it('can sign a Bitcoin message', function () {
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var keyPair = bitcoin.ECPair.fromWIF('5KYZdUEo39z3FPrtuX2QbbwGnNP5zTd7yyr2SC1j299sBCnWjss')
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var message = 'This is an example of a signed message.'
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var signature = bitcoin.message.sign(keyPair, message)
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assert.strictEqual(signature.toString('base64'), 'G9L5yLFjti0QTHhPyFrZCT1V/MMnBtXKmoiKDZ78NDBjERki6ZTQZdSMCtkgoNmp17By9ItJr8o7ChX0XxY91nk=')
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})
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it('can verify a Bitcoin message', function () {
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var address = '1HZwkjkeaoZfTSaJxDw6aKkxp45agDiEzN'
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var signature = 'HJLQlDWLyb1Ef8bQKEISzFbDAKctIlaqOpGbrk3YVtRsjmC61lpE5ErkPRUFtDKtx98vHFGUWlFhsh3DiW6N0rE'
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var message = 'This is an example of a signed message.'
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assert(bitcoin.message.verify(address, signature, message))
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})
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it('can create a transaction using OP_RETURN', function (done) {
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this.timeout(30000)
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var network = bitcoin.networks.testnet
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var keyPair = bitcoin.ECPair.makeRandom({ network: network })
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var address = keyPair.getAddress()
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blockchain.t.faucet(address, 2e4, function (err, unspent) {
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if (err) return done(err)
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var tx = new bitcoin.TransactionBuilder(network)
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var data = new Buffer('bitcoinjs-lib')
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var dataScript = bitcoin.script.nullDataOutput(data)
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tx.addInput(unspent.txId, unspent.vout)
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tx.addOutput(dataScript, 1000)
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tx.sign(0, keyPair)
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var txRaw = tx.build()
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blockchain.t.transactions.propagate(txRaw.toHex(), done)
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})
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})
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describe('can create transactions using OP_CHECKLOCKTIMEVERIFY', function (done) {
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var network = bitcoin.networks.testnet
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var alice = bitcoin.ECPair.fromWIF('cScfkGjbzzoeewVWmU2hYPUHeVGJRDdFt7WhmrVVGkxpmPP8BHWe', network)
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var bob = bitcoin.ECPair.fromWIF('cMkopUXKWsEzAjfa1zApksGRwjVpJRB3831qM9W4gKZsLwjHXA9x', network)
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// now - 3 hours
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var threeHoursAgo = Math.floor(Date.now() / 1000) - (3600 * 3)
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var redeemScript = bitcoin.script.compile([
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bitcoin.opcodes.OP_IF,
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bitcoin.script.number.encode(threeHoursAgo),
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bitcoin.opcodes.OP_CHECKLOCKTIMEVERIFY,
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bitcoin.opcodes.OP_DROP,
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bitcoin.opcodes.OP_ELSE,
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bob.getPublicKeyBuffer(),
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bitcoin.opcodes.OP_CHECKSIGVERIFY,
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bitcoin.opcodes.OP_ENDIF,
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alice.getPublicKeyBuffer(),
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bitcoin.opcodes.OP_CHECKSIG
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])
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var scriptPubKey = bitcoin.script.scriptHashOutput(bitcoin.crypto.hash160(redeemScript))
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var txId
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beforeEach(function (done) {
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this.timeout(10000)
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blockchain.t.faucet(alice.getAddress(), 2e4, function (err, unspent) {
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if (err) return done(err)
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// build the transaction
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var tx = new bitcoin.TransactionBuilder(network)
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tx.addInput(unspent.txId, unspent.vout)
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tx.addOutput(scriptPubKey, 1e4)
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tx.sign(0, alice)
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var txRaw = tx.build()
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txId = txRaw.getId()
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blockchain.t.transactions.propagate(txRaw.toHex(), done)
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})
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})
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// expiry past, {Alice's signature} OP_TRUE
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it('where Alice can redeem after the expiry is past', function (done) {
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this.timeout(30000)
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var tx2 = new bitcoin.TransactionBuilder(network)
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// tx2.setLockTime(threeHoursAgo) // TODO
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tx2.addInput(txId, 0, 0xfffffffe)
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tx2.addOutput(alice.getAddress(), 1000)
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var tx2Raw = tx2.buildIncomplete()
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tx2Raw.locktime = threeHoursAgo // TODO
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var hashType = bitcoin.Transaction.SIGHASH_ALL
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var signatureHash = tx2Raw.hashForSignature(0, redeemScript, hashType)
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var signature = alice.sign(signatureHash)
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var redeemScriptSig = bitcoin.script.scriptHashInput([
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signature.toScriptSignature(hashType), bitcoin.opcodes.OP_TRUE
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], redeemScript)
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tx2Raw.setInputScript(0, redeemScriptSig)
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blockchain.t.transactions.propagate(tx2Raw.toHex(), done)
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})
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// {Bob's signature} {Alice's signature} OP_FALSE
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it('where Alice and Bob can redeem at any time', function (done) {
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this.timeout(30000)
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var tx2 = new bitcoin.TransactionBuilder(network)
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// tx2.setLockTime(threeHoursAgo) // TODO
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tx2.addInput(txId, 0, 0xfffffffe)
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tx2.addOutput(alice.getAddress(), 1000)
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var tx2Raw = tx2.buildIncomplete()
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tx2Raw.locktime = threeHoursAgo // TODO
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var hashType = bitcoin.Transaction.SIGHASH_ALL
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var signatureHash = tx2Raw.hashForSignature(0, redeemScript, hashType)
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var signatureA = alice.sign(signatureHash)
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var signatureB = bob.sign(signatureHash)
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var redeemScriptSig = bitcoin.script.scriptHashInput([
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signatureA.toScriptSignature(hashType), signatureB.toScriptSignature(hashType), bitcoin.opcodes.OP_FALSE
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], redeemScript)
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tx2Raw.setInputScript(0, redeemScriptSig)
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blockchain.t.transactions.propagate(tx2Raw.toHex(), done)
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})
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})
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})
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