Armory: cleaned up example

examples/Armory.js

@@ -1,42 +1,33 @@
 var Armory = require('../lib/Armory');
 var Address = require('../lib/Address');
-var Point = require('../lib/Point');
-var bignum = require('bignum');
-var Key = require('../lib/Key');
-
-// Chain code can be generated from paper backup
-// on brainwallet.org/#chains
-//
-// Paper backup used for testing:
-//
-// aagh hjfj sihk ietj giik wwai awtd uodh hnji
-// soss uaku egod utai itos fijj ihgi jhau jtoo
-var chaincode = '84ac14bc4b388b33da099a0b4ee3b507284d99e1476639e36e5ca5e6af86481e';
 
 // Initial public key can be retrieved from paper backup
-//var PublicX = '9df5 23e7 18b9 1f59 a790 2d46 999f 9357 ccf8 7208 24d4 3076 4516 b809 f7ab ce4e'
-//var PublicY = '66ba 5d21 4682 0dae 401d 9506 8437 2516 79f9 0c56 4186 cc50 07df c6d0 6989 1ff4';
-//var pubkey = '04' + PublicX.split(' ').join('') + PublicY.split(' ').join('');
-//console.log(pubkey);
+
+var PublicX = '9df5 23e7 18b9 1f59 a790 2d46 999f 9357 ccf8 7208 24d4 3076 4516 b809 f7ab ce4e';
+var PublicY = '66ba 5d21 4682 0dae 401d 9506 8437 2516 79f9 0c56 4186 cc50 07df c6d0 6989 1ff4';
+var pubkey = '04' + PublicX.split(' ').join('') + PublicY.split(' ').join('');
 
 
-// mmm... can't figure out how to arrive at same pubkey as brainwallet
-var pubkey = '045a09a3286873a72f164476bde9d1d8e5c2bc044e35aa47eb6e798e325a86417f7c35b61d9905053533e0b4f2a26eca0330aadf21c638969e45aaace50e4c0c87';
+// Chain code can be generated by entering paper backup
+// on brainwallet.org/#chains or by using Armory.fromSeed() below
+
+var chaincode = '84ac14bc4b388b33da099a0b4ee3b507284d99e1476639e36e5ca5e6af86481e';
 
 var armory = new Armory(chaincode, pubkey);
 
 var pubkey;
 for (var i = 0; i < 5; i++) {
-  armory = armory.next();
   console.log(Address.fromPubKey(armory.pubkey).as('base58'));
+  armory = armory.next();
 }
 
-// Derive stuff from root cod
+// Derive first public key and chain code from seed
 var seed = [
   'aagh hjfj sihk ietj giik wwai awtd uodh hnji',
   'soss uaku egod utai itos fijj ihgi jhau jtoo'
 ].join('\n');
 
-console.log(seed);
 
-console.log(Armory.fromSeed(seed));
+var a = Armory.fromSeed(seed);
+
+console.log(Address.fromPubKey(a.next().pubkey).as('base58'));

lib/Armory.js

@@ -1,4 +1,5 @@
 var Point = require('./browser/Point'),
+  Key = require('./Key'),
   buffertools = require('buffertools'),
   sha256 = require('../util').sha256,
   twoSha256 = require('../util').twoSha256,
@@ -73,7 +74,13 @@ Armory.decodeSeed = function (seed) {
 // Derive chain code from root key
 Armory.fromSeed = function (seed) {
   var res = Armory.decodeSeed(seed);
-  return res;
+  // generate first public key
+  var key = new Key();
+  key.private = res.privKey;
+  key.compressed = false;
+  key.regenerateSync();
+
+  return new Armory(res.chainCode, key.public);
 };
 
 Armory.deriveChaincode = function (root) {