src/js/index.js

   1 (function() {
   2
   3     // mnemonics is populated as required by getLanguage
   4     var mnemonics = { "english": new Mnemonic("english") };
   5     var mnemonic = mnemonics["english"];
   6     var seed = null;
   7     var bip32RootKey = null;
   8     var bip32ExtendedKey = null;
   9     var network = bitcoinjs.bitcoin.networks.bitcoin;
  10     var addressRowTemplate = $("#address-row-template");
  11
  12     var showIndex = true;
  13     var showAddress = true;
  14     var showPubKey = true;
  15     var showPrivKey = true;
  16     var showQr = false;
  17
  18     var entropyChangeTimeoutEvent = null;
  19     var phraseChangeTimeoutEvent = null;
  20     var rootKeyChangedTimeoutEvent = null;
  21
  22     var generationProcesses = [];
  23
  24     var DOM = {};
  25     DOM.network = $(".network");
  26     DOM.bip32Client = $("#bip32-client");
  27     DOM.phraseNetwork = $("#network-phrase");
  28     DOM.useEntropy = $(".use-entropy");
  29     DOM.entropyContainer = $(".entropy-container");
  30     DOM.entropy = $(".entropy");
  31     DOM.entropyFiltered = DOM.entropyContainer.find(".filtered");
  32     DOM.entropyType = DOM.entropyContainer.find(".type");
  33     DOM.entropyCrackTime = DOM.entropyContainer.find(".crack-time");
  34     DOM.entropyEventCount = DOM.entropyContainer.find(".event-count");
  35     DOM.entropyBits = DOM.entropyContainer.find(".bits");
  36     DOM.entropyBitsPerEvent = DOM.entropyContainer.find(".bits-per-event");
  37     DOM.entropyWordCount = DOM.entropyContainer.find(".word-count");
  38     DOM.entropyBinary = DOM.entropyContainer.find(".binary");
  39     DOM.entropyMnemonicLength = DOM.entropyContainer.find(".mnemonic-length");
  40     DOM.phrase = $(".phrase");
  41     DOM.passphrase = $(".passphrase");
  42     DOM.generateContainer = $(".generate-container");
  43     DOM.generate = $(".generate");
  44     DOM.seed = $(".seed");
  45     DOM.rootKey = $(".root-key");
  46     DOM.extendedPrivKey = $(".extended-priv-key");
  47     DOM.extendedPubKey = $(".extended-pub-key");
  48     DOM.bip32tab = $("#bip32-tab");
  49     DOM.bip44tab = $("#bip44-tab");
  50     DOM.bip32panel = $("#bip32");
  51     DOM.bip44panel = $("#bip44");
  52     DOM.bip32path = $("#bip32-path");
  53     DOM.bip44path = $("#bip44-path");
  54     DOM.bip44purpose = $("#bip44 .purpose");
  55     DOM.bip44coin = $("#bip44 .coin");
  56     DOM.bip44account = $("#bip44 .account");
  57     DOM.bip44accountXprv = $("#bip44 .account-xprv");
  58     DOM.bip44accountXpub = $("#bip44 .account-xpub");
  59     DOM.bip44change = $("#bip44 .change");
  60     DOM.generatedStrength = $(".generate-container .strength");
  61     DOM.hardenedAddresses = $(".hardened-addresses");
  62     DOM.addresses = $(".addresses");
  63     DOM.rowsToAdd = $(".rows-to-add");
  64     DOM.more = $(".more");
  65     DOM.feedback = $(".feedback");
  66     DOM.tab = $(".derivation-type a");
  67     DOM.indexToggle = $(".index-toggle");
  68     DOM.addressToggle = $(".address-toggle");
  69     DOM.publicKeyToggle = $(".public-key-toggle");
  70     DOM.privateKeyToggle = $(".private-key-toggle");
  71     DOM.languages = $(".languages a");
  72     DOM.qrContainer = $(".qr-container");
  73     DOM.qrHider = DOM.qrContainer.find(".qr-hider");
  74     DOM.qrImage = DOM.qrContainer.find(".qr-image");
  75     DOM.qrHint = DOM.qrContainer.find(".qr-hint");
  76     DOM.showQrEls = $("[data-show-qr]");
  77
  78     function init() {
  79         // Events
  80         DOM.network.on("change", networkChanged);
  81         DOM.bip32Client.on("change", bip32ClientChanged);
  82         DOM.useEntropy.on("change", setEntropyVisibility);
  83         DOM.entropy.on("input", delayedEntropyChanged);
  84         DOM.entropyMnemonicLength.on("change", entropyChanged);
  85         DOM.phrase.on("input", delayedPhraseChanged);
  86         DOM.passphrase.on("input", delayedPhraseChanged);
  87         DOM.generate.on("click", generateClicked);
  88         DOM.more.on("click", showMore);
  89         DOM.rootKey.on("input", delayedRootKeyChanged);
  90         DOM.bip32path.on("input", calcForDerivationPath);
  91         DOM.bip44account.on("input", calcForDerivationPath);
  92         DOM.bip44change.on("input", calcForDerivationPath);
  93         DOM.tab.on("shown.bs.tab", calcForDerivationPath);
  94         DOM.hardenedAddresses.on("change", calcForDerivationPath);
  95         DOM.indexToggle.on("click", toggleIndexes);
  96         DOM.addressToggle.on("click", toggleAddresses);
  97         DOM.publicKeyToggle.on("click", togglePublicKeys);
  98         DOM.privateKeyToggle.on("click", togglePrivateKeys);
  99         DOM.languages.on("click", languageChanged);
 100         setQrEvents(DOM.showQrEls);
 101         disableForms();
 102         hidePending();
 103         hideValidationError();
 104         populateNetworkSelect();
 105         populateClientSelect();
 106     }
 107
 108     // Event handlers
 109
 110     function networkChanged(e) {
 111         var networkIndex = e.target.value;
 112         networks[networkIndex].onSelect();
 113         if (seed != null) {
 114             phraseChanged();
 115         }
 116         else {
 117             rootKeyChanged();
 118         }
 119     }
 120
 121     function bip32ClientChanged(e) {
 122         var clientIndex = DOM.bip32Client.val();
 123         if (clientIndex == "custom") {
 124             DOM.bip32path.prop("readonly", false);
 125         }
 126         else {
 127             DOM.bip32path.prop("readonly", true);
 128             clients[clientIndex].onSelect();
 129             if (seed != null) {
 130                 phraseChanged();
 131             }
 132             else {
 133                 rootKeyChanged();
 134             }
 135         }
 136     }
 137
 138     function setEntropyVisibility() {
 139         if (isUsingOwnEntropy()) {
 140             DOM.entropyContainer.removeClass("hidden");
 141             DOM.generateContainer.addClass("hidden");
 142             DOM.phrase.prop("readonly", true);
 143             DOM.entropy.focus();
 144             entropyChanged();
 145         }
 146         else {
 147             DOM.entropyContainer.addClass("hidden");
 148             DOM.generateContainer.removeClass("hidden");
 149             DOM.phrase.prop("readonly", false);
 150             hidePending();
 151         }
 152     }
 153
 154     function delayedPhraseChanged() {
 155         hideValidationError();
 156         showPending();
 157         if (phraseChangeTimeoutEvent != null) {
 158             clearTimeout(phraseChangeTimeoutEvent);
 159         }
 160         phraseChangeTimeoutEvent = setTimeout(phraseChanged, 400);
 161     }
 162
 163     function phraseChanged() {
 164         showPending();
 165         hideValidationError();
 166         setMnemonicLanguage();
 167         // Get the mnemonic phrase
 168         var phrase = DOM.phrase.val();
 169         var errorText = findPhraseErrors(phrase);
 170         if (errorText) {
 171             showValidationError(errorText);
 172             return;
 173         }
 174         // Calculate and display
 175         var passphrase = DOM.passphrase.val();
 176         calcBip32RootKeyFromSeed(phrase, passphrase);
 177         calcForDerivationPath();
 178         hidePending();
 179     }
 180
 181     function delayedEntropyChanged() {
 182         hideValidationError();
 183         showPending();
 184         if (entropyChangeTimeoutEvent != null) {
 185             clearTimeout(entropyChangeTimeoutEvent);
 186         }
 187         entropyChangeTimeoutEvent = setTimeout(entropyChanged, 400);
 188     }
 189
 190     function entropyChanged() {
 191         // If blank entropy, clear mnemonic, addresses, errors
 192         if (DOM.entropy.val().trim().length == 0) {
 193             clearDisplay();
 194             clearEntropyFeedback();
 195             DOM.phrase.val("");
 196             showValidationError("Blank entropy");
 197             return;
 198         }
 199         // Get the current phrase to detect changes
 200         var phrase = DOM.phrase.val();
 201         // Set the phrase from the entropy
 202         setMnemonicFromEntropy();
 203         // Recalc addresses if the phrase has changed
 204         var newPhrase = DOM.phrase.val();
 205         if (newPhrase != phrase) {
 206             if (newPhrase.length == 0) {
 207                 clearDisplay();
 208             }
 209             else {
 210                 phraseChanged();
 211             }
 212         }
 213         else {
 214             hidePending();
 215         }
 216     }
 217
 218     function delayedRootKeyChanged() {
 219         // Warn if there is an existing mnemonic or passphrase.
 220         if (DOM.phrase.val().length > 0 || DOM.passphrase.val().length > 0) {
 221             if (!confirm("This will clear existing mnemonic and passphrase")) {
 222                 DOM.rootKey.val(bip32RootKey);
 223                 return
 224             }
 225         }
 226         hideValidationError();
 227         showPending();
 228         // Clear existing mnemonic and passphrase
 229         DOM.phrase.val("");
 230         DOM.passphrase.val("");
 231         seed = null;
 232         if (rootKeyChangedTimeoutEvent != null) {
 233             clearTimeout(rootKeyChangedTimeoutEvent);
 234         }
 235         rootKeyChangedTimeoutEvent = setTimeout(rootKeyChanged, 400);
 236     }
 237
 238     function rootKeyChanged() {
 239         showPending();
 240         hideValidationError();
 241         // Validate the root key TODO
 242         var rootKeyBase58 = DOM.rootKey.val();
 243         var errorText = validateRootKey(rootKeyBase58);
 244         if (errorText) {
 245             showValidationError(errorText);
 246             return;
 247         }
 248         // Calculate and display
 249         calcBip32RootKeyFromBase58(rootKeyBase58);
 250         calcForDerivationPath();
 251     }
 252
 253     function calcForDerivationPath() {
 254         showPending();
 255         clearAddressesList();
 256         hideValidationError();
 257         // Get the derivation path
 258         var derivationPath = getDerivationPath();
 259         var errorText = findDerivationPathErrors(derivationPath);
 260         if (errorText) {
 261             showValidationError(errorText);
 262             return;
 263         }
 264         bip32ExtendedKey = calcBip32ExtendedKey(derivationPath);
 265         if (bip44TabSelected()) {
 266             displayBip44Info();
 267         }
 268         displayBip32Info();
 269         hidePending();
 270     }
 271
 272     function generateClicked() {
 273         if (isUsingOwnEntropy()) {
 274             return;
 275         }
 276         clearDisplay();
 277         showPending();
 278         setTimeout(function() {
 279             setMnemonicLanguage();
 280             var phrase = generateRandomPhrase();
 281             if (!phrase) {
 282                 return;
 283             }
 284             phraseChanged();
 285         }, 50);
 286     }
 287
 288     function languageChanged() {
 289         setTimeout(function() {
 290             setMnemonicLanguage();
 291             if (DOM.phrase.val().length > 0) {
 292                 var newPhrase = convertPhraseToNewLanguage();
 293                 DOM.phrase.val(newPhrase);
 294                 phraseChanged();
 295             }
 296             else {
 297                 DOM.generate.trigger("click");
 298             }
 299         }, 50);
 300     }
 301
 302     function toggleIndexes() {
 303         showIndex = !showIndex;
 304         $("td.index span").toggleClass("invisible");
 305     }
 306
 307     function toggleAddresses() {
 308         showAddress = !showAddress;
 309         $("td.address span").toggleClass("invisible");
 310     }
 311
 312     function togglePublicKeys() {
 313         showPubKey = !showPubKey;
 314         $("td.pubkey span").toggleClass("invisible");
 315     }
 316
 317     function togglePrivateKeys() {
 318         showPrivKey = !showPrivKey;
 319         $("td.privkey span").toggleClass("invisible");
 320     }
 321
 322     // Private methods
 323
 324     function generateRandomPhrase() {
 325         if (!hasStrongRandom()) {
 326             var errorText = "This browser does not support strong randomness";
 327             showValidationError(errorText);
 328             return;
 329         }
 330         var numWords = parseInt(DOM.generatedStrength.val());
 331         var strength = numWords / 3 * 32;
 332         var words = mnemonic.generate(strength);
 333         DOM.phrase.val(words);
 334         return words;
 335     }
 336
 337     function calcBip32RootKeyFromSeed(phrase, passphrase) {
 338         seed = mnemonic.toSeed(phrase, passphrase);
 339         bip32RootKey = bitcoinjs.bitcoin.HDNode.fromSeedHex(seed, network);
 340     }
 341
 342     function calcBip32RootKeyFromBase58(rootKeyBase58) {
 343         bip32RootKey = bitcoinjs.bitcoin.HDNode.fromBase58(rootKeyBase58, network);
 344     }
 345
 346     function calcBip32ExtendedKey(path) {
 347         // Check there's a root key to derive from
 348         if (!bip32RootKey) {
 349             return bip32RootKey;
 350         }
 351         var extendedKey = bip32RootKey;
 352         // Derive the key from the path
 353         var pathBits = path.split("/");
 354         for (var i=0; i<pathBits.length; i++) {
 355             var bit = pathBits[i];
 356             var index = parseInt(bit);
 357             if (isNaN(index)) {
 358                 continue;
 359             }
 360             var hardened = bit[bit.length-1] == "'";
 361             var isPriv = !(extendedKey.isNeutered());
 362             var invalidDerivationPath = hardened && !isPriv;
 363             if (invalidDerivationPath) {
 364                 extendedKey = null;
 365             }
 366             else if (hardened) {
 367                 extendedKey = extendedKey.deriveHardened(index);
 368             }
 369             else {
 370                 extendedKey = extendedKey.derive(index);
 371             }
 372         }
 373         return extendedKey
 374     }
 375
 376     function showValidationError(errorText) {
 377         DOM.feedback
 378             .text(errorText)
 379             .show();
 380     }
 381
 382     function hideValidationError() {
 383         DOM.feedback
 384             .text("")
 385             .hide();
 386     }
 387
 388     function findPhraseErrors(phrase) {
 389         // Preprocess the words
 390         phrase = mnemonic.normalizeString(phrase);
 391         var words = phraseToWordArray(phrase);
 392         // Detect blank phrase
 393         if (words.length == 0) {
 394             return "Blank mnemonic";
 395         }
 396         // Check each word
 397         for (var i=0; i<words.length; i++) {
 398             var word = words[i];
 399             var language = getLanguage();
 400             if (WORDLISTS[language].indexOf(word) == -1) {
 401                 console.log("Finding closest match to " + word);
 402                 var nearestWord = findNearestWord(word);
 403                 return word + " not in wordlist, did you mean " + nearestWord + "?";
 404             }
 405         }
 406         // Check the words are valid
 407         var properPhrase = wordArrayToPhrase(words);
 408         var isValid = mnemonic.check(properPhrase);
 409         if (!isValid) {
 410             return "Invalid mnemonic";
 411         }
 412         return false;
 413     }
 414
 415     function validateRootKey(rootKeyBase58) {
 416         try {
 417             bitcoinjs.bitcoin.HDNode.fromBase58(rootKeyBase58);
 418         }
 419         catch (e) {
 420             return "Invalid root key";
 421         }
 422         return "";
 423     }
 424
 425     function getDerivationPath() {
 426         if (bip44TabSelected()) {
 427             var purpose = parseIntNoNaN(DOM.bip44purpose.val(), 44);
 428             var coin = parseIntNoNaN(DOM.bip44coin.val(), 0);
 429             var account = parseIntNoNaN(DOM.bip44account.val(), 0);
 430             var change = parseIntNoNaN(DOM.bip44change.val(), 0);
 431             var path = "m/";
 432             path += purpose + "'/";
 433             path += coin + "'/";
 434             path += account + "'/";
 435             path += change;
 436             DOM.bip44path.val(path);
 437             var derivationPath = DOM.bip44path.val();
 438             console.log("Using derivation path from BIP44 tab: " + derivationPath);
 439             return derivationPath;
 440         }
 441         else if (bip32TabSelected()) {
 442             var derivationPath = DOM.bip32path.val();
 443             console.log("Using derivation path from BIP32 tab: " + derivationPath);
 444             return derivationPath;
 445         }
 446         else {
 447             console.log("Unknown derivation path");
 448         }
 449     }
 450
 451     function findDerivationPathErrors(path) {
 452         // TODO is not perfect but is better than nothing
 453         // Inspired by
 454         // https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki#test-vectors
 455         // and
 456         // https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki#extended-keys
 457         var maxDepth = 255; // TODO verify this!!
 458         var maxIndexValue = Math.pow(2, 31); // TODO verify this!!
 459         if (path[0] != "m") {
 460             return "First character must be 'm'";
 461         }
 462         if (path.length > 1) {
 463             if (path[1] != "/") {
 464                 return "Separator must be '/'";
 465             }
 466             var indexes = path.split("/");
 467             if (indexes.length > maxDepth) {
 468                 return "Derivation depth is " + indexes.length + ", must be less than " + maxDepth;
 469             }
 470             for (var depth = 1; depth<indexes.length; depth++) {
 471                 var index = indexes[depth];
 472                 var invalidChars = index.replace(/^[0-9]+'?$/g, "")
 473                 if (invalidChars.length > 0) {
 474                     return "Invalid characters " + invalidChars + " found at depth " + depth;
 475                 }
 476                 var indexValue = parseInt(index.replace("'", ""));
 477                 if (isNaN(depth)) {
 478                     return "Invalid number at depth " + depth;
 479                 }
 480                 if (indexValue > maxIndexValue) {
 481                     return "Value of " + indexValue + " at depth " + depth + " must be less than " + maxIndexValue;
 482                 }
 483             }
 484         }
 485         // Check root key exists or else derivation path is useless!
 486         if (!bip32RootKey) {
 487             return "No root key";
 488         }
 489         // Check no hardened derivation path when using xpub keys
 490         var hardened = path.indexOf("'") > -1;
 491         var isXpubkey = bip32RootKey.isNeutered();
 492         if (hardened && isXpubkey) {
 493             return "Hardened derivation path is invalid with xpub key";
 494         }
 495         return false;
 496     }
 497
 498     function displayBip44Info() {
 499         // Get the derivation path for the account
 500         var purpose = parseIntNoNaN(DOM.bip44purpose.val(), 44);
 501         var coin = parseIntNoNaN(DOM.bip44coin.val(), 0);
 502         var account = parseIntNoNaN(DOM.bip44account.val(), 0);
 503         var path = "m/";
 504         path += purpose + "'/";
 505         path += coin + "'/";
 506         path += account + "'/";
 507         // Calculate the account extended keys
 508         var accountExtendedKey = calcBip32ExtendedKey(path);
 509         var accountXprv = accountExtendedKey.toBase58();
 510         var accountXpub = accountExtendedKey.neutered().toBase58();
 511         // Display the extended keys
 512         DOM.bip44accountXprv.val(accountXprv);
 513         DOM.bip44accountXpub.val(accountXpub);
 514     }
 515
 516     function displayBip32Info() {
 517         // Display the key
 518         DOM.seed.val(seed);
 519         var rootKey = bip32RootKey.toBase58();
 520         DOM.rootKey.val(rootKey);
 521         var xprvkeyB58 = "NA";
 522         if (!bip32ExtendedKey.isNeutered()) {
 523             xprvkeyB58 = bip32ExtendedKey.toBase58();
 524         }
 525         var extendedPrivKey = xprvkeyB58;
 526         DOM.extendedPrivKey.val(extendedPrivKey);
 527         var extendedPubKey = bip32ExtendedKey.neutered().toBase58();
 528         DOM.extendedPubKey.val(extendedPubKey);
 529         // Display the addresses and privkeys
 530         clearAddressesList();
 531         displayAddresses(0, 20);
 532     }
 533
 534     function displayAddresses(start, total) {
 535         generationProcesses.push(new (function() {
 536
 537             var rows = [];
 538
 539             this.stop = function() {
 540                 for (var i=0; i<rows.length; i++) {
 541                     rows[i].shouldGenerate = false;
 542                 }
 543             }
 544
 545             for (var i=0; i<total; i++) {
 546                 var index = i + start;
 547                 rows.push(new TableRow(index));
 548             }
 549
 550         })());
 551     }
 552
 553     function TableRow(index) {
 554
 555         var self = this;
 556         this.shouldGenerate = true;
 557         var useHardenedAddresses = DOM.hardenedAddresses.prop("checked");
 558
 559         function init() {
 560             calculateValues();
 561         }
 562
 563         function calculateValues() {
 564             setTimeout(function() {
 565                 if (!self.shouldGenerate) {
 566                     return;
 567                 }
 568                 var key = "NA";
 569                 if (useHardenedAddresses) {
 570                     key = bip32ExtendedKey.deriveHardened(index);
 571                 }
 572                 else {
 573                     key = bip32ExtendedKey.derive(index);
 574                 }
 575                 var address = key.getAddress().toString();
 576                 var privkey = "NA";
 577                 if (!key.isNeutered()) {
 578                     privkey = key.keyPair.toWIF(network);
 579                 }
 580                 var pubkey = key.getPublicKeyBuffer().toString('hex');
 581                 var indexText = getDerivationPath() + "/" + index;
 582                 if (useHardenedAddresses) {
 583                     indexText = indexText + "'";
 584                 }
 585                 // Ethereum values are different
 586                 if (networks[DOM.network.val()].name == "ETH - Ethereum") {
 587                     var privKeyBuffer = key.keyPair.d.toBuffer();
 588                     privkey = privKeyBuffer.toString('hex');
 589                     var addressBuffer = ethUtil.privateToAddress(privKeyBuffer);
 590                     var hexAddress = addressBuffer.toString('hex');
 591                     var checksumAddress = ethUtil.toChecksumAddress(hexAddress);
 592                     address = ethUtil.addHexPrefix(checksumAddress);
 593                     privkey = ethUtil.addHexPrefix(privkey);
 594                     pubkey = ethUtil.addHexPrefix(pubkey);
 595                 }
 596                 // Ripple values are different
 597                 if (networks[DOM.network.val()].name == "XRP - Ripple") {
 598                     privkey = convertRipplePriv(privkey);
 599                     address = convertRippleAdrr(address);
 600                 }
 601                 addAddressToList(indexText, address, pubkey, privkey);
 602             }, 50)
 603         }
 604
 605         init();
 606
 607     }
 608
 609     function showMore() {
 610         var start = DOM.addresses.children().length;
 611         var rowsToAdd = parseInt(DOM.rowsToAdd.val());
 612         if (isNaN(rowsToAdd)) {
 613             rowsToAdd = 20;
 614             DOM.rowsToAdd.val("20");
 615         }
 616         if (rowsToAdd > 200) {
 617             var msg = "Generating " + rowsToAdd + " rows could take a while. ";
 618             msg += "Do you want to continue?";
 619             if (!confirm(msg)) {
 620                 return;
 621             }
 622         }
 623         displayAddresses(start, rowsToAdd);
 624     }
 625
 626     function clearDisplay() {
 627         clearAddressesList();
 628         clearKeys();
 629         hideValidationError();
 630     }
 631
 632     function clearAddressesList() {
 633         DOM.addresses.empty();
 634         stopGenerating();
 635     }
 636
 637     function stopGenerating() {
 638         while (generationProcesses.length > 0) {
 639             var generation = generationProcesses.shift();
 640             generation.stop();
 641         }
 642     }
 643
 644     function clearKeys() {
 645         clearRootKey();
 646         clearDerivedKeys();
 647     }
 648
 649     function clearRootKey() {
 650         DOM.rootKey.val("");
 651     }
 652
 653     function clearDerivedKeys() {
 654         DOM.extendedPrivKey.val("");
 655         DOM.extendedPubKey.val("");
 656         DOM.bip44accountXprv.val("");
 657         DOM.bip44accountXpub.val("");
 658     }
 659
 660     function addAddressToList(indexText, address, pubkey, privkey) {
 661         var row = $(addressRowTemplate.html());
 662         // Elements
 663         var indexCell = row.find(".index span");
 664         var addressCell = row.find(".address span");
 665         var pubkeyCell = row.find(".pubkey span");
 666         var privkeyCell = row.find(".privkey span");
 667         // Content
 668         indexCell.text(indexText);
 669         addressCell.text(address);
 670         pubkeyCell.text(pubkey);
 671         privkeyCell.text(privkey);
 672         // Visibility
 673         if (!showIndex) {
 674             indexCell.addClass("invisible");
 675         }
 676         if (!showAddress) {
 677             addressCell.addClass("invisible");
 678         }
 679         if (!showPubKey) {
 680             pubkeyCell.addClass("invisible");
 681         }
 682         if (!showPrivKey) {
 683             privkeyCell.addClass("invisible");
 684         }
 685         DOM.addresses.append(row);
 686         var rowShowQrEls = row.find("[data-show-qr]");
 687         setQrEvents(rowShowQrEls);
 688     }
 689
 690     function hasStrongRandom() {
 691         return 'crypto' in window && window['crypto'] !== null;
 692     }
 693
 694     function disableForms() {
 695         $("form").on("submit", function(e) {
 696             e.preventDefault();
 697         });
 698     }
 699
 700     function parseIntNoNaN(val, defaultVal) {
 701         var v = parseInt(val);
 702         if (isNaN(v)) {
 703             return defaultVal;
 704         }
 705         return v;
 706     }
 707
 708     function showPending() {
 709         DOM.feedback
 710             .text("Calculating...")
 711             .show();
 712     }
 713
 714     function findNearestWord(word) {
 715         var language = getLanguage();
 716         var words = WORDLISTS[language];
 717         var minDistance = 99;
 718         var closestWord = words[0];
 719         for (var i=0; i<words.length; i++) {
 720             var comparedTo = words[i];
 721             if (comparedTo.indexOf(word) == 0) {
 722                 return comparedTo;
 723             }
 724             var distance = Levenshtein.get(word, comparedTo);
 725             if (distance < minDistance) {
 726                 closestWord = comparedTo;
 727                 minDistance = distance;
 728             }
 729         }
 730         return closestWord;
 731     }
 732
 733     function hidePending() {
 734         DOM.feedback
 735             .text("")
 736             .hide();
 737     }
 738
 739     function populateNetworkSelect() {
 740         for (var i=0; i<networks.length; i++) {
 741             var network = networks[i];
 742             var option = $("<option>");
 743             option.attr("value", i);
 744             option.text(network.name);
 745             DOM.phraseNetwork.append(option);
 746         }
 747     }
 748
 749     function populateClientSelect() {
 750         for (var i=0; i<clients.length; i++) {
 751             var client = clients[i];
 752             var option = $("<option>");
 753             option.attr("value", i);
 754             option.text(client.name);
 755             DOM.bip32Client.append(option);
 756         }
 757     }
 758
 759     function getLanguage() {
 760         var defaultLanguage = "english";
 761         // Try to get from existing phrase
 762         var language = getLanguageFromPhrase();
 763         // Try to get from url if not from phrase
 764         if (language.length == 0) {
 765             language = getLanguageFromUrl();
 766         }
 767         // Default to English if no other option
 768         if (language.length == 0) {
 769             language = defaultLanguage;
 770         }
 771         return language;
 772     }
 773
 774     function getLanguageFromPhrase(phrase) {
 775         // Check if how many words from existing phrase match a language.
 776         var language = "";
 777         if (!phrase) {
 778             phrase = DOM.phrase.val();
 779         }
 780         if (phrase.length > 0) {
 781             var words = phraseToWordArray(phrase);
 782             var languageMatches = {};
 783             for (l in WORDLISTS) {
 784                 // Track how many words match in this language
 785                 languageMatches[l] = 0;
 786                 for (var i=0; i<words.length; i++) {
 787                     var wordInLanguage = WORDLISTS[l].indexOf(words[i]) > -1;
 788                     if (wordInLanguage) {
 789                         languageMatches[l]++;
 790                     }
 791                 }
 792                 // Find languages with most word matches.
 793                 // This is made difficult due to commonalities between Chinese
 794                 // simplified vs traditional.
 795                 var mostMatches = 0;
 796                 var mostMatchedLanguages = [];
 797                 for (var l in languageMatches) {
 798                     var numMatches = languageMatches[l];
 799                     if (numMatches > mostMatches) {
 800                         mostMatches = numMatches;
 801                         mostMatchedLanguages = [l];
 802                     }
 803                     else if (numMatches == mostMatches) {
 804                         mostMatchedLanguages.push(l);
 805                     }
 806                 }
 807             }
 808             if (mostMatchedLanguages.length > 0) {
 809                 // Use first language and warn if multiple detected
 810                 language = mostMatchedLanguages[0];
 811                 if (mostMatchedLanguages.length > 1) {
 812                     console.warn("Multiple possible languages");
 813                     console.warn(mostMatchedLanguages);
 814                 }
 815             }
 816         }
 817         return language;
 818     }
 819
 820     function getLanguageFromUrl() {
 821         for (var language in WORDLISTS) {
 822             if (window.location.hash.indexOf(language) > -1) {
 823                 return language;
 824             }
 825         }
 826         return "";
 827     }
 828
 829     function setMnemonicLanguage() {
 830         var language = getLanguage();
 831         // Load the bip39 mnemonic generator for this language if required
 832         if (!(language in mnemonics)) {
 833             mnemonics[language] = new Mnemonic(language);
 834         }
 835         mnemonic = mnemonics[language];
 836     }
 837
 838     function convertPhraseToNewLanguage() {
 839         var oldLanguage = getLanguageFromPhrase();
 840         var newLanguage = getLanguageFromUrl();
 841         var oldPhrase = DOM.phrase.val();
 842         var oldWords = phraseToWordArray(oldPhrase);
 843         var newWords = [];
 844         for (var i=0; i<oldWords.length; i++) {
 845             var oldWord = oldWords[i];
 846             var index = WORDLISTS[oldLanguage].indexOf(oldWord);
 847             var newWord = WORDLISTS[newLanguage][index];
 848             newWords.push(newWord);
 849         }
 850         newPhrase = wordArrayToPhrase(newWords);
 851         return newPhrase;
 852     }
 853
 854     // TODO look at jsbip39 - mnemonic.splitWords
 855     function phraseToWordArray(phrase) {
 856         var words = phrase.split(/\s/g);
 857         var noBlanks = [];
 858         for (var i=0; i<words.length; i++) {
 859             var word = words[i];
 860             if (word.length > 0) {
 861                 noBlanks.push(word);
 862             }
 863         }
 864         return noBlanks;
 865     }
 866
 867     // TODO look at jsbip39 - mnemonic.joinWords
 868     function wordArrayToPhrase(words) {
 869         var phrase = words.join(" ");
 870         var language = getLanguageFromPhrase(phrase);
 871         if (language == "japanese") {
 872             phrase = words.join("\u3000");
 873         }
 874         return phrase;
 875     }
 876
 877     function isUsingOwnEntropy() {
 878         return DOM.useEntropy.prop("checked");
 879     }
 880
 881     function setMnemonicFromEntropy() {
 882         clearEntropyFeedback();
 883         // Get entropy value
 884         var entropyStr = DOM.entropy.val();
 885         // Work out minimum base for entropy
 886         var entropy = Entropy.fromString(entropyStr);
 887         if (entropy.binaryStr.length == 0) {
 888             return;
 889         }
 890         // Show entropy details
 891         showEntropyFeedback(entropy);
 892         // Use entropy hash if not using raw entropy
 893         var bits = entropy.binaryStr;
 894         var mnemonicLength = DOM.entropyMnemonicLength.val();
 895         if (mnemonicLength != "raw") {
 896             // Get bits by hashing entropy with SHA256
 897             var hash = sjcl.hash.sha256.hash(entropy.cleanStr);
 898             var hex = sjcl.codec.hex.fromBits(hash);
 899             bits = BigInteger.parse(hex, 16).toString(2);
 900             while (bits.length % 256 != 0) {
 901                 bits = "0" + bits;
 902             }
 903             // Truncate hash to suit number of words
 904             mnemonicLength = parseInt(mnemonicLength);
 905             var numberOfBits = 32 * mnemonicLength / 3;
 906             bits = bits.substring(0, numberOfBits);
 907         }
 908         // Discard trailing entropy
 909         var bitsToUse = Math.floor(bits.length / 32) * 32;
 910         var start = bits.length - bitsToUse;
 911         var binaryStr = bits.substring(start);
 912         // Convert entropy string to numeric array
 913         var entropyArr = [];
 914         for (var i=0; i<binaryStr.length / 8; i++) {
 915             var byteAsBits = binaryStr.substring(i*8, i*8+8);
 916             var entropyByte = parseInt(byteAsBits, 2);
 917             entropyArr.push(entropyByte)
 918         }
 919         // Convert entropy array to mnemonic
 920         var phrase = mnemonic.toMnemonic(entropyArr);
 921         // Set the mnemonic in the UI
 922         DOM.phrase.val(phrase);
 923     }
 924
 925     function clearEntropyFeedback() {
 926         DOM.entropyCrackTime.text("...");
 927         DOM.entropyType.text("");
 928         DOM.entropyWordCount.text("0");
 929         DOM.entropyEventCount.text("0");
 930         DOM.entropyBitsPerEvent.text("0");
 931         DOM.entropyBits.text("0");
 932         DOM.entropyFiltered.html("&nbsp;");
 933         DOM.entropyBinary.html("&nbsp;");
 934     }
 935
 936     function showEntropyFeedback(entropy) {
 937         var numberOfBits = entropy.binaryStr.length;
 938         var timeToCrack = "unknown";
 939         try {
 940             var z = zxcvbn(entropy.base.parts.join(""));
 941             timeToCrack = z.crack_times_display.offline_fast_hashing_1e10_per_second;
 942             if (z.feedback.warning != "") {
 943                 timeToCrack = timeToCrack + " - " + z.feedback.warning;
 944             };
 945         }
 946         catch (e) {
 947             console.log("Error detecting entropy strength with zxcvbn:");
 948             console.log(e);
 949         }
 950         var entropyTypeStr = getEntropyTypeStr(entropy);
 951         var wordCount = Math.floor(numberOfBits / 32) * 3;
 952         var bitsPerEvent = entropy.bitsPerEvent.toFixed(2);
 953         DOM.entropyFiltered.html(entropy.cleanHtml);
 954         DOM.entropyType.text(entropyTypeStr);
 955         DOM.entropyCrackTime.text(timeToCrack);
 956         DOM.entropyEventCount.text(entropy.base.ints.length);
 957         DOM.entropyBits.text(numberOfBits);
 958         DOM.entropyWordCount.text(wordCount);
 959         DOM.entropyBinary.text(entropy.binaryStr);
 960         DOM.entropyBitsPerEvent.text(bitsPerEvent);
 961     }
 962
 963     function getEntropyTypeStr(entropy) {
 964         var typeStr = entropy.base.str;
 965         // Add some detail if these are cards
 966         if (entropy.base.asInt == 52) {
 967             var cardDetail = []; // array of message strings
 968             // Detect duplicates
 969             var dupes = [];
 970             var dupeTracker = {};
 971             for (var i=0; i<entropy.base.parts.length; i++) {
 972                 var card = entropy.base.parts[i];
 973                 var cardUpper = card.toUpperCase();
 974                 if (cardUpper in dupeTracker) {
 975                     dupes.push(card);
 976                 }
 977                 dupeTracker[cardUpper] = true;
 978             }
 979             if (dupes.length > 0) {
 980                 var dupeWord = "duplicates";
 981                 if (dupes.length == 1) {
 982                     dupeWord = "duplicate";
 983                 }
 984                 var msg = dupes.length + " " + dupeWord + ": " + dupes.slice(0,3).join(" ");
 985                 if (dupes.length > 3) {
 986                     msg += "...";
 987                 }
 988                 cardDetail.push(msg);
 989             }
 990             // Detect full deck
 991             var uniqueCards = [];
 992             for (var uniqueCard in dupeTracker) {
 993                 uniqueCards.push(uniqueCard);
 994             }
 995             if (uniqueCards.length == 52) {
 996                 cardDetail.unshift("full deck");
 997             }
 998             // Detect missing cards
 999             var values = "A23456789TJQK";
1000             var suits = "CDHS";
1001             var missingCards = [];
1002             for (var i=0; i<suits.length; i++) {
1003                 for (var j=0; j<values.length; j++) {
1004                     var card = values[j] + suits[i];
1005                     if (!(card in dupeTracker)) {
1006                         missingCards.push(card);
1007                     }
1008                 }
1009             }
1010             // Display missing cards if six or less, ie clearly going for full deck
1011             if (missingCards.length > 0 && missingCards.length <= 6) {
1012                 var msg = missingCards.length + " missing: " + missingCards.slice(0,3).join(" ");
1013                 if (missingCards.length > 3) {
1014                     msg += "...";
1015                 }
1016                 cardDetail.push(msg);
1017             }
1018             // Add card details to typeStr
1019             if (cardDetail.length > 0) {
1020                 typeStr += " (" + cardDetail.join(", ") + ")";
1021             }
1022         }
1023         return typeStr;
1024     }
1025
1026     function setQrEvents(els) {
1027         els.on("mouseenter", createQr);
1028         els.on("mouseleave", destroyQr);
1029         els.on("click", toggleQr);
1030     }
1031
1032     function createQr(e) {
1033         var content = e.target.textContent || e.target.value;
1034         if (content) {
1035             var size = 130;
1036             DOM.qrImage.qrcode({width: size, height: size, text: content});
1037             if (!showQr) {
1038                 DOM.qrHider.addClass("hidden");
1039             }
1040             else {
1041                 DOM.qrHider.removeClass("hidden");
1042             }
1043             DOM.qrContainer.removeClass("hidden");
1044         }
1045     }
1046
1047     function destroyQr() {
1048         DOM.qrImage.text("");
1049         DOM.qrContainer.addClass("hidden");
1050     }
1051
1052     function toggleQr() {
1053         showQr = !showQr;
1054         DOM.qrHider.toggleClass("hidden");
1055         DOM.qrHint.toggleClass("hidden");
1056     }
1057
1058     function bip44TabSelected() {
1059         return DOM.bip44tab.hasClass("active");
1060     }
1061
1062     function bip32TabSelected() {
1063         return DOM.bip32tab.hasClass("active");
1064     }
1065
1066     var networks = [
1067         {
1068             name: "BTC - Bitcoin",
1069             onSelect: function() {
1070                 network = bitcoinjs.bitcoin.networks.bitcoin;
1071                 DOM.bip44coin.val(0);
1072             },
1073         },
1074         {
1075             name: "BTC - Bitcoin Testnet",
1076             onSelect: function() {
1077                 network = bitcoinjs.bitcoin.networks.testnet;
1078                 DOM.bip44coin.val(1);
1079             },
1080         },
1081         {
1082             name: "CLAM - Clams",
1083             onSelect: function() {
1084                 network = bitcoinjs.bitcoin.networks.clam;
1085                 DOM.bip44coin.val(23);
1086             },
1087         },
1088         {
1089             name: "CRW - Crown",
1090             onSelect: function() {
1091                 network = bitcoin.networks.crown;
1092                 DOM.bip44coin.val(72);
1093             },
1094         },
1095         {
1096             name: "DASH - Dash",
1097             onSelect: function() {
1098                 network = bitcoinjs.bitcoin.networks.dash;
1099                 DOM.bip44coin.val(5);
1100             },
1101         },
1102         {
1103             name: "DASH - Dash Testnet",
1104             onSelect: function() {
1105                 network = bitcoinjs.bitcoin.networks.dashtn;
1106                 DOM.bip44coin.val(1);
1107             },
1108         },
1109         {
1110             name: "DOGE - Dogecoin",
1111             onSelect: function() {
1112                 network = bitcoin.networks.dogecoin;
1113                 DOM.bip44coin.val(3);
1114             },
1115         },
1116         {
1117             name: "ETH - Ethereum",
1118             onSelect: function() {
1119                 network = bitcoinjs.bitcoin.networks.bitcoin;
1120                 DOM.bip44coin.val(60);
1121             },
1122         },
1123         {
1124             name: "GAME - GameCredits",
1125             onSelect: function() {
1126                 network = bitcoinjs.bitcoin.networks.game;
1127                 DOM.bip44coin.val(101);
1128             },
1129         },
1130         {
1131             name: "JBS - Jumbucks",
1132             onSelect: function() {
1133                 network = bitcoinjs.bitcoin.networks.jumbucks;
1134                 DOM.bip44coin.val(26);
1135             },
1136         },
1137         {
1138             name: "LTC - Litecoin",
1139             onSelect: function() {
1140                 network = bitcoinjs.bitcoin.networks.litecoin;
1141                 DOM.bip44coin.val(2);
1142             },
1143         },
1144         {
1145             name: "NMC - Namecoin",
1146             onSelect: function() {
1147                 network = bitcoinjs.bitcoin.networks.namecoin;
1148                 DOM.bip44coin.val(7);
1149             },
1150         },
1151         {
1152             name: "PPC - Peercoin",
1153             onSelect: function() {
1154                 network = bitcoinjs.bitcoin.networks.peercoin;
1155                 DOM.bip44coin.val(6);
1156             },
1157         },
1158         {
1159             name: "SDC - ShadowCash",
1160             onSelect: function() {
1161                 network = bitcoinjs.bitcoin.networks.shadow;
1162                 DOM.bip44coin.val(35);
1163             },
1164         },
1165         {
1166             name: "SDC - ShadowCash Testnet",
1167             onSelect: function() {
1168                 network = bitcoinjs.bitcoin.networks.shadowtn;
1169                 DOM.bip44coin.val(1);
1170             },
1171         },
1172         {
1173             name: "SLM - Slimcoin",
1174             onSelect: function() {
1175                 network = bitcoinjs.bitcoin.networks.slimcoin;
1176                 DOM.bip44coin.val(63);
1177             },
1178         },
1179         {
1180             name: "SLM - Slimcoin Testnet",
1181             onSelect: function() {
1182                 network = bitcoinjs.bitcoin.networks.slimcointn;
1183                 DOM.bip44coin.val(111);
1184             },
1185         },
1186         {
1187             name: "VIA - Viacoin",
1188             onSelect: function() {
1189                 network = bitcoinjs.bitcoin.networks.viacoin;
1190                 DOM.bip44coin.val(14);
1191             },
1192         },
1193         {
1194             name: "VIA - Viacoin Testnet",
1195             onSelect: function() {
1196                 network = bitcoinjs.bitcoin.networks.viacointestnet;
1197                 DOM.bip44coin.val(1);
1198             },
1199         },
1200         {
1201             name: "XRP - Ripple",
1202             onSelect: function() {
1203                 network = bitcoin.networks.bitcoin;
1204                 DOM.bip44coin.val(144);
1205             },
1206         }
1207     ]
1208
1209     var clients = [
1210         {
1211             name: "Bitcoin Core",
1212             onSelect: function() {
1213                 DOM.bip32path.val("m/0'/0'");
1214                 DOM.hardenedAddresses.prop('checked', true);
1215             },
1216         },
1217         {
1218             name: "blockchain.info",
1219             onSelect: function() {
1220                 DOM.bip32path.val("m/44'/0'/0'");
1221                 DOM.hardenedAddresses.prop('checked', false);
1222             },
1223         },
1224         {
1225             name: "MultiBit HD",
1226             onSelect: function() {
1227                 DOM.bip32path.val("m/0'/0");
1228                 DOM.hardenedAddresses.prop('checked', false);
1229             },
1230         }
1231     ]
1232
1233     init();
1234
1235 })();