Ryan X. Charles
11 years ago
11 changed files with 448 additions and 3 deletions
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var Armory = require('../lib/Armory'); |
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var Address = require('../lib/Address'); |
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// Initial public key can be retrieved from paper backup
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var PublicX = '9df5 23e7 18b9 1f59 a790 2d46 999f 9357 ccf8 7208 24d4 3076 4516 b809 f7ab ce4e'; |
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var PublicY = '66ba 5d21 4682 0dae 401d 9506 8437 2516 79f9 0c56 4186 cc50 07df c6d0 6989 1ff4'; |
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var pubkey = '04' + PublicX.split(' ').join('') + PublicY.split(' ').join(''); |
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// Chain code can be generated by entering paper backup
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// on brainwallet.org/#chains or by using Armory.fromSeed() below
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var chaincode = '84ac14bc4b388b33da099a0b4ee3b507284d99e1476639e36e5ca5e6af86481e'; |
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var armory = new Armory(chaincode, pubkey); |
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console.log('Deriving public keys for'); |
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console.log('------------------------'); |
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console.log('Chain code: %s', chaincode); |
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console.log('Public key: %s', pubkey); |
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console.log(''); |
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for (var i = 0; i < 5; i++) { |
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console.log(Address.fromPubKey(armory.pubkey).as('base58')); |
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armory = armory.next(); |
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} |
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// Derive first public key and chain code from seed
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var seed = [ |
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'aagh hjfj sihk ietj giik wwai awtd uodh hnji', |
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'soss uaku egod utai itos fijj ihgi jhau jtoo' |
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]; |
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console.log(''); |
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console.log(''); |
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console.log('Deriving public keys for'); |
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console.log('------------------------'); |
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console.log('Seed: %s', seed.join(' ')); |
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console.log(''); |
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// skip first public key
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var a = Armory.fromSeed(seed.join('\n')).next(); |
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for (var i = 0; i < 5; i++) { |
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console.log(Address.fromPubKey(a.pubkey).as('base58')); |
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a = a.next(); |
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} |
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var mpk = '045a09a3286873a72f164476bde9d1d8e5c2bc044e35aa47eb6e798e325a86417f7c35b61d9905053533e0b4f2a26eca0330aadf21c638969e45aaace50e4c0c8784ac14bc4b388b33da099a0b4ee3b507284d99e1476639e36e5ca5e6af86481e'; |
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console.log(''); |
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console.log(''); |
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console.log('Deriving public keys for'); |
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console.log('------------------------'); |
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console.log('Master Public Key: %s', mpk); |
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console.log(''); |
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// skip first public key
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var b = Armory.fromMasterPublicKey(mpk).next(); |
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for (var i = 0; i < 5; i++) { |
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console.log(Address.fromPubKey(b.pubkey).as('base58')); |
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b = b.next(); |
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} |
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@ -0,0 +1,58 @@ |
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<!DOCTYPE html> |
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<html> |
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<head> |
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<style> |
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textarea { |
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width: 400px; |
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height: 100px; |
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} |
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</style> |
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</head> |
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<body> |
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<script src="../../browser/bundle.js"></script> |
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Enter you paper wallet seed:<br> |
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<textarea id="seed">aagh hjfj sihk ietj giik wwai awtd uodh hnji |
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soss uaku egod utai itos fijj ihgi jhau jtoo</textarea> |
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<br> |
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<input type="submit" onclick="updateResult()" value="Generate"> |
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<div id="result"></div> |
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<pre id="console"></pre> |
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<script> |
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var bitcore = require('bitcore'), |
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Address = bitcore.Address, |
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Armory = bitcore.Armory; |
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var logs = document.getElementById('console'); |
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function log (msg) { |
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logs.insertAdjacentHTML('beforeend', msg + '\n'); |
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} |
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function clear_log () { |
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logs.innerHTML = ''; |
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} |
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function getSeed() { |
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return document.getElementById('seed').value; |
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} |
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function updateResult () { |
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clear_log(); |
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var seed = getSeed(); |
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var a = Armory.fromSeed(seed); |
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log('Armory MPK: '); |
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log(''); |
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log(''); |
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log('<textarea>' + a.pubkey.toString('hex') + '' + a.chaincode.toString('hex') + '</textarea>'); |
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log(''); |
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log(''); |
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log('Some wallet addresses:'); |
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for (var i = 0; i < 5; i++) { |
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log(Address.fromPubKey(a.pubkey).as('base58')); |
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a = a.next(); |
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} |
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} |
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updateResult(); |
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</script> |
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</body> |
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</html> |
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var Point = require('./Point'), |
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Key = require('./Key'), |
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sha256 = require('../util').sha256, |
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twoSha256 = require('../util').twoSha256; |
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/** |
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* For now, this class can only supports derivation from public key |
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* It doesn't support private key derivation (TODO). |
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* |
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* @example examples/Armory.js |
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*/ |
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function Armory (chaincode, pubkey) { |
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this.chaincode = new Buffer(chaincode, 'hex'); |
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this.pubkey = new Buffer(pubkey, 'hex'); |
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} |
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Armory.prototype.generatePubKey = function () { |
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var pubKey = this.pubkey; |
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var chainCode = this.chaincode; |
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var chainXor = twoSha256(pubKey); |
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for (var i = 0; i < 32; i++) |
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chainXor[i] ^= chainCode[i]; |
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var pt = Point.fromUncompressedPubKey(pubKey); |
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pt = Point.multiply(pt, chainXor); |
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var new_pubkey = pt.toUncompressedPubKey(); |
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return new_pubkey; |
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}; |
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Armory.prototype.next = function () { |
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var next_pubkey = this.generatePubKey(); |
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return new Armory(this.chaincode, next_pubkey); |
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}; |
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/** |
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* PS: MPK here represents the pubkey concatenated |
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* with the chain code. It is an unofficial standard. |
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* |
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* Armory will soon release an officially supported |
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* format: |
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* |
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* https://github.com/etotheipi/BitcoinArmory/issues/204#issuecomment-42217801
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*/ |
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Armory.fromMasterPublicKey = function (mpk) { |
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var pubkey = mpk.substr(0, 130); |
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var chaincode = mpk.substr(130, mpk.length); |
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return new Armory(chaincode, pubkey); |
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}; |
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function decode (str) { |
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var from = '0123456789abcdef'; |
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var to = 'asdfghjkwertuion'; |
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var res = ''; |
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for (var i = 0; i < str.length; i++) |
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res += from.charAt(to.indexOf(str.charAt(i))); |
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return res; |
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} |
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Armory.decodeSeed = function (seed) { |
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var keys = seed.trim().split('\n'); |
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var lines = []; |
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for (var i = 0; i < keys.length; i++) { |
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var k = keys[i].replace(' ',''); |
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var raw = new Buffer(decode(k), 'hex'); |
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var data = raw.slice(0, 16); |
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lines.push(data); |
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} |
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var privKey = Buffer.concat([ lines[0], lines[1] ]); |
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var chainCode = (lines.length==4) ? |
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Buffer.concat([ lines[2], lines[3] ]) : Armory.deriveChaincode(privKey); |
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return { |
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privKey: privKey, |
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chainCode: chainCode |
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}; |
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}; |
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// Derive chain code from root key
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Armory.fromSeed = function (seed) { |
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var res = Armory.decodeSeed(seed); |
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// generate first public key
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var key = new Key(); |
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key.private = res.privKey; |
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key.compressed = false; |
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key.regenerateSync(); |
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return new Armory(res.chainCode, key.public); |
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}; |
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Armory.deriveChaincode = function (root) { |
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var msg = 'Derive Chaincode from Root Key'; |
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var hash = twoSha256(root); |
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var okey = []; |
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var ikey = []; |
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for (var i = 0; i < hash.length; i++) { |
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okey.push(0x5c ^ hash[i]); |
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ikey.push(0x36 ^ hash[i]); |
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} |
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okey = new Buffer(okey); |
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ikey = new Buffer(ikey); |
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var m = new Buffer(msg, 'utf8'); |
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var a = sha256(Buffer.concat([ ikey, m ])); |
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var b = sha256(Buffer.concat([ okey, a ])); |
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return b; |
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}; |
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module.exports = Armory; |
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@ -0,0 +1,92 @@ |
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'use strict'; |
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var chai = chai || require('chai'); |
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var bitcore = bitcore || require('../bitcore'); |
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var should = chai.should(); |
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var Armory = bitcore.Armory; |
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var Address = bitcore.Address; |
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/** |
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* This is the Armory root code that was used to generated the hard coded values in |
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* those tests: |
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*/ |
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var seed = [ |
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'aagh hjfj sihk ietj giik wwai awtd uodh hnji', |
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'soss uaku egod utai itos fijj ihgi jhau jtoo' |
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].join('\n'); |
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/* |
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* It was retrieved by creating a wallet in Armory and creating a paper backup. |
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* |
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* This is the public key as presented on the generated Armory paper wallets: |
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*/ |
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var PublicX = '9df5 23e7 18b9 1f59 a790 2d46 999f 9357 ccf8 7208 24d4 3076 4516 b809 f7ab ce4e'; |
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var PublicY = '66ba 5d21 4682 0dae 401d 9506 8437 2516 79f9 0c56 4186 cc50 07df c6d0 6989 1ff4'; |
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var pubkey = '04' + PublicX.split(' ').join('') + PublicY.split(' ').join(''); |
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/* |
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* This chain code was derived from the seed above: |
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*/ |
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var chaincode = '84ac14bc4b388b33da099a0b4ee3b507284d99e1476639e36e5ca5e6af86481e'; |
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/* |
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* This is some addresses generated from the wallet: |
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*/ |
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var address = [ |
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'1PUzLkds8eHGjHPaW7v7h23bzmHjrRMVqz', |
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'1CGrip2uQUwhP2f3ARfbcrmtdwvWzELRmj', |
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'1BfBauMP4PX1ZBYrqH4K4R8KWrFfskrs7E', |
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'15emDCBVgBJLDP5cKxuwZ4Q77sfqEcwZvC', |
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'16tDJhMYBv1szZgRZCohWrzEvzX2bG7vEQ' |
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]; |
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var instance, fromseed, first; |
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describe('Armory', function() { |
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it('should initialze the main object', function() { |
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should.exist(Armory); |
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}); |
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it('should be able to create instance from chaincode, pubkey', function() { |
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instance = new Armory(chaincode, pubkey); |
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should.exist(instance); |
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}); |
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it('should be able to create instance from seed', function() { |
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fromseed = Armory.fromSeed(seed); |
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should.exist(fromseed); |
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}); |
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it('fromseed should generate the expected chain code', function() { |
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should.equal(fromseed.chaincode.toString('hex'), chaincode.toString('hex')); |
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should.equal(fromseed.chaincode.toString('hex'), instance.chaincode.toString('hex')); |
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}); |
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it('fromseed should be able to generate the first public key', function() { |
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first = fromseed.next(); |
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should.exist(first); |
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}); |
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it('instance created from chaincode,pubkey and the first instance generated by fromseed should match', function() { |
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should.equal(first.pubkey.toString('hex'), instance.pubkey.toString('hex')); |
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should.equal(first.chaincode.toString('hex'), instance.chaincode.toString('hex')); |
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}); |
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it('armory should generate the expected addresses for the given chaincode,pubkey', function() { |
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var addr, a; |
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a = instance; |
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for (var i = 0; i < address.length; i++) { |
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should.equal(Address.fromPubKey(a.pubkey).as('base58'), address[i]); |
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a = a.next(); |
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} |
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}); |
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}); |
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