66 lines
2.3 KiB
JavaScript
66 lines
2.3 KiB
JavaScript
var assert = require('assert')
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var bitcoin = require('../../')
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var blockchain = new (require('cb-helloblock'))('testnet')
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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 key = bitcoin.ECKey.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(key, message)
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assert.equal(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 an OP_RETURN transaction', function(done) {
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this.timeout(20000)
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var key = bitcoin.ECKey.fromWIF("L1uyy5qTuGrVXrmrsvHWHgVzW9kKdrp27wBC7Vs6nZDTF2BRUVwy")
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var address = key.pub.getAddress(bitcoin.networks.testnet).toString()
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blockchain.addresses.__faucetWithdraw(address, 2e4, function(err) {
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if (err) return done(err)
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blockchain.addresses.unspents(address, function(err, unspents) {
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if (err) return done(err)
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var tx = new bitcoin.TransactionBuilder()
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var data = new Buffer('cafedeadbeef', 'hex')
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var dataScript = bitcoin.scripts.nullDataOutput(data)
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var unspent = unspents.pop()
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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, key)
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var txBuilt = tx.build()
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blockchain.transactions.propagate(txBuilt.toHex(), function(err) {
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if (err) return done(err)
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// check that the message was propagated
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blockchain.transactions.get(txBuilt.getId(), function(err, transaction) {
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if (err) return done(err)
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var actual = bitcoin.Transaction.fromHex(transaction.txHex)
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var dataScript2 = actual.outs[0].script
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var data2 = dataScript2.chunks[1]
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assert.deepEqual(dataScript, dataScript2)
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assert.deepEqual(data, data2)
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done()
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})
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})
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})
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})
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})
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})
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