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     var litecoinUseLtub = true;
  18
  19     var entropyChangeTimeoutEvent = null;
  20     var phraseChangeTimeoutEvent = null;
  21     var rootKeyChangedTimeoutEvent = null;
  22
  23     var generationProcesses = [];
  24
  25     var DOM = {};
  26     DOM.network = $(".network");
  27     DOM.bip32Client = $("#bip32-client");
  28     DOM.phraseNetwork = $("#network-phrase");
  29     DOM.useEntropy = $(".use-entropy");
  30     DOM.entropyContainer = $(".entropy-container");
  31     DOM.entropy = $(".entropy");
  32     DOM.entropyFiltered = DOM.entropyContainer.find(".filtered");
  33     DOM.entropyType = DOM.entropyContainer.find(".type");
  34     DOM.entropyCrackTime = DOM.entropyContainer.find(".crack-time");
  35     DOM.entropyEventCount = DOM.entropyContainer.find(".event-count");
  36     DOM.entropyBits = DOM.entropyContainer.find(".bits");
  37     DOM.entropyBitsPerEvent = DOM.entropyContainer.find(".bits-per-event");
  38     DOM.entropyWordCount = DOM.entropyContainer.find(".word-count");
  39     DOM.entropyBinary = DOM.entropyContainer.find(".binary");
  40     DOM.entropyWordIndexes = DOM.entropyContainer.find(".word-indexes");
  41     DOM.entropyChecksum = DOM.entropyContainer.find(".checksum");
  42     DOM.entropyMnemonicLength = DOM.entropyContainer.find(".mnemonic-length");
  43     DOM.entropyFilterWarning = DOM.entropyContainer.find(".filter-warning");
  44     DOM.phrase = $(".phrase");
  45     DOM.passphrase = $(".passphrase");
  46     DOM.generateContainer = $(".generate-container");
  47     DOM.generate = $(".generate");
  48     DOM.seed = $(".seed");
  49     DOM.rootKey = $(".root-key");
  50     DOM.litecoinLtubContainer = $(".litecoin-ltub-container");
  51     DOM.litecoinUseLtub = $(".litecoin-use-ltub");
  52     DOM.extendedPrivKey = $(".extended-priv-key");
  53     DOM.extendedPubKey = $(".extended-pub-key");
  54     DOM.bip32tab = $("#bip32-tab");
  55     DOM.bip44tab = $("#bip44-tab");
  56     DOM.bip49tab = $("#bip49-tab");
  57     DOM.bip84tab = $("#bip84-tab");
  58     DOM.bip141tab = $("#bip141-tab");
  59     DOM.bip32panel = $("#bip32");
  60     DOM.bip44panel = $("#bip44");
  61     DOM.bip49panel = $("#bip49");
  62     DOM.bip32path = $("#bip32-path");
  63     DOM.bip44path = $("#bip44-path");
  64     DOM.bip44purpose = $("#bip44 .purpose");
  65     DOM.bip44coin = $("#bip44 .coin");
  66     DOM.bip44account = $("#bip44 .account");
  67     DOM.bip44accountXprv = $("#bip44 .account-xprv");
  68     DOM.bip44accountXpub = $("#bip44 .account-xpub");
  69     DOM.bip44change = $("#bip44 .change");
  70     DOM.bip49unavailable = $("#bip49 .unavailable");
  71     DOM.bip49available = $("#bip49 .available");
  72     DOM.bip49path = $("#bip49-path");
  73     DOM.bip49purpose = $("#bip49 .purpose");
  74     DOM.bip49coin = $("#bip49 .coin");
  75     DOM.bip49account = $("#bip49 .account");
  76     DOM.bip49accountXprv = $("#bip49 .account-xprv");
  77     DOM.bip49accountXpub = $("#bip49 .account-xpub");
  78     DOM.bip49change = $("#bip49 .change");
  79     DOM.bip84path = $("#bip84-path");
  80     DOM.bip84purpose = $("#bip84 .purpose");
  81     DOM.bip84coin = $("#bip84 .coin");
  82     DOM.bip84account = $("#bip84 .account");
  83     DOM.bip84accountXprv = $("#bip84 .account-xprv");
  84     DOM.bip84accountXpub = $("#bip84 .account-xpub");
  85     DOM.bip84change = $("#bip84 .change");
  86     DOM.bip141unavailable = $("#bip141 .unavailable");
  87     DOM.bip141available = $("#bip141 .available");
  88     DOM.bip141path = $("#bip141-path");
  89     DOM.bip141semantics = $(".bip141-semantics");
  90     DOM.generatedStrength = $(".generate-container .strength");
  91     DOM.hardenedAddresses = $(".hardened-addresses");
  92     DOM.useBitpayAddressesContainer = $(".use-bitpay-addresses-container");
  93     DOM.useBitpayAddresses = $(".use-bitpay-addresses");
  94     DOM.useBip38 = $(".use-bip38");
  95     DOM.bip38Password = $(".bip38-password");
  96     DOM.addresses = $(".addresses");
  97     DOM.csvTab = $("#csv-tab a");
  98     DOM.csv = $(".csv");
  99     DOM.rowsToAdd = $(".rows-to-add");
 100     DOM.more = $(".more");
 101     DOM.moreRowsStartIndex = $(".more-rows-start-index");
 102     DOM.feedback = $(".feedback");
 103     DOM.tab = $(".derivation-type a");
 104     DOM.indexToggle = $(".index-toggle");
 105     DOM.addressToggle = $(".address-toggle");
 106     DOM.publicKeyToggle = $(".public-key-toggle");
 107     DOM.privateKeyToggle = $(".private-key-toggle");
 108     DOM.languages = $(".languages a");
 109     DOM.qrContainer = $(".qr-container");
 110     DOM.qrHider = DOM.qrContainer.find(".qr-hider");
 111     DOM.qrImage = DOM.qrContainer.find(".qr-image");
 112     DOM.qrHint = DOM.qrContainer.find(".qr-hint");
 113     DOM.showQrEls = $("[data-show-qr]");
 114
 115     function init() {
 116         // Events
 117         DOM.network.on("change", networkChanged);
 118         DOM.bip32Client.on("change", bip32ClientChanged);
 119         DOM.useEntropy.on("change", setEntropyVisibility);
 120         DOM.entropy.on("input", delayedEntropyChanged);
 121         DOM.entropyMnemonicLength.on("change", entropyChanged);
 122         DOM.phrase.on("input", delayedPhraseChanged);
 123         DOM.passphrase.on("input", delayedPhraseChanged);
 124         DOM.generate.on("click", generateClicked);
 125         DOM.more.on("click", showMore);
 126         DOM.rootKey.on("input", delayedRootKeyChanged);
 127         DOM.litecoinUseLtub.on("change", litecoinUseLtubChanged);
 128         DOM.bip32path.on("input", calcForDerivationPath);
 129         DOM.bip44account.on("input", calcForDerivationPath);
 130         DOM.bip44change.on("input", calcForDerivationPath);
 131         DOM.bip49account.on("input", calcForDerivationPath);
 132         DOM.bip49change.on("input", calcForDerivationPath);
 133         DOM.bip84account.on("input", calcForDerivationPath);
 134         DOM.bip84change.on("input", calcForDerivationPath);
 135         DOM.bip141path.on("input", calcForDerivationPath);
 136         DOM.bip141semantics.on("change", tabChanged);
 137         DOM.tab.on("shown.bs.tab", tabChanged);
 138         DOM.hardenedAddresses.on("change", calcForDerivationPath);
 139         DOM.useBip38.on("change", calcForDerivationPath);
 140         DOM.bip38Password.on("change", calcForDerivationPath);
 141         DOM.indexToggle.on("click", toggleIndexes);
 142         DOM.addressToggle.on("click", toggleAddresses);
 143         DOM.publicKeyToggle.on("click", togglePublicKeys);
 144         DOM.privateKeyToggle.on("click", togglePrivateKeys);
 145         DOM.csvTab.on("click", updateCsv);
 146         DOM.languages.on("click", languageChanged);
 147         DOM.useBitpayAddresses.on("change", useBitpayAddressesChange);
 148         setQrEvents(DOM.showQrEls);
 149         disableForms();
 150         hidePending();
 151         hideValidationError();
 152         populateNetworkSelect();
 153         populateClientSelect();
 154     }
 155
 156     // Event handlers
 157
 158     function networkChanged(e) {
 159         clearDerivedKeys();
 160         clearAddressesList();
 161         DOM.litecoinLtubContainer.addClass("hidden");
 162         DOM.useBitpayAddressesContainer.addClass("hidden");
 163         var networkIndex = e.target.value;
 164         var network = networks[networkIndex];
 165         network.onSelect();
 166         if (network.segwitAvailable) {
 167             adjustNetworkForSegwit();
 168             showSegwitAvailable();
 169         }
 170         else {
 171             showSegwitUnavailable();
 172         }
 173         if (seed != null) {
 174             phraseChanged();
 175         }
 176         else {
 177             rootKeyChanged();
 178         }
 179     }
 180
 181     function bip32ClientChanged(e) {
 182         var clientIndex = DOM.bip32Client.val();
 183         if (clientIndex == "custom") {
 184             DOM.bip32path.prop("readonly", false);
 185         }
 186         else {
 187             DOM.bip32path.prop("readonly", true);
 188             clients[clientIndex].onSelect();
 189             if (seed != null) {
 190                 phraseChanged();
 191             }
 192             else {
 193                 rootKeyChanged();
 194             }
 195         }
 196     }
 197
 198     function setEntropyVisibility() {
 199         if (isUsingOwnEntropy()) {
 200             DOM.entropyContainer.removeClass("hidden");
 201             DOM.generateContainer.addClass("hidden");
 202             DOM.phrase.prop("readonly", true);
 203             DOM.entropy.focus();
 204             entropyChanged();
 205         }
 206         else {
 207             DOM.entropyContainer.addClass("hidden");
 208             DOM.generateContainer.removeClass("hidden");
 209             DOM.phrase.prop("readonly", false);
 210             hidePending();
 211         }
 212     }
 213
 214     function delayedPhraseChanged() {
 215         hideValidationError();
 216         seed = null;
 217         bip32RootKey = null;
 218         bip32ExtendedKey = null;
 219         clearAddressesList();
 220         showPending();
 221         if (phraseChangeTimeoutEvent != null) {
 222             clearTimeout(phraseChangeTimeoutEvent);
 223         }
 224         phraseChangeTimeoutEvent = setTimeout(phraseChanged, 400);
 225     }
 226
 227     function phraseChanged() {
 228         showPending();
 229         setMnemonicLanguage();
 230         // Get the mnemonic phrase
 231         var phrase = DOM.phrase.val();
 232         var errorText = findPhraseErrors(phrase);
 233         if (errorText) {
 234             showValidationError(errorText);
 235             return;
 236         }
 237         // Calculate and display
 238         var passphrase = DOM.passphrase.val();
 239         calcBip32RootKeyFromSeed(phrase, passphrase);
 240         calcForDerivationPath();
 241         // Show the word indexes
 242         showWordIndexes();
 243     }
 244
 245     function tabChanged() {
 246         showPending();
 247         adjustNetworkForSegwit();
 248         var phrase = DOM.phrase.val();
 249         if (phrase != "") {
 250             // Calculate and display for mnemonic
 251             var errorText = findPhraseErrors(phrase);
 252             if (errorText) {
 253                 showValidationError(errorText);
 254                 return;
 255             }
 256             // Calculate and display
 257             var passphrase = DOM.passphrase.val();
 258             calcBip32RootKeyFromSeed(phrase, passphrase);
 259         }
 260         else {
 261             // Calculate and display for root key
 262             var rootKeyBase58 = DOM.rootKey.val();
 263             var errorText = validateRootKey(rootKeyBase58);
 264             if (errorText) {
 265                 showValidationError(errorText);
 266                 return;
 267             }
 268             // Calculate and display
 269             calcBip32RootKeyFromBase58(rootKeyBase58);
 270         }
 271         calcForDerivationPath();
 272     }
 273
 274     function delayedEntropyChanged() {
 275         hideValidationError();
 276         showPending();
 277         if (entropyChangeTimeoutEvent != null) {
 278             clearTimeout(entropyChangeTimeoutEvent);
 279         }
 280         entropyChangeTimeoutEvent = setTimeout(entropyChanged, 400);
 281     }
 282
 283     function entropyChanged() {
 284         // If blank entropy, clear mnemonic, addresses, errors
 285         if (DOM.entropy.val().trim().length == 0) {
 286             clearDisplay();
 287             clearEntropyFeedback();
 288             DOM.phrase.val("");
 289             showValidationError("Blank entropy");
 290             return;
 291         }
 292         // Get the current phrase to detect changes
 293         var phrase = DOM.phrase.val();
 294         // Set the phrase from the entropy
 295         setMnemonicFromEntropy();
 296         // Recalc addresses if the phrase has changed
 297         var newPhrase = DOM.phrase.val();
 298         if (newPhrase != phrase) {
 299             if (newPhrase.length == 0) {
 300                 clearDisplay();
 301             }
 302             else {
 303                 phraseChanged();
 304             }
 305         }
 306         else {
 307             hidePending();
 308         }
 309     }
 310
 311     function delayedRootKeyChanged() {
 312         // Warn if there is an existing mnemonic or passphrase.
 313         if (DOM.phrase.val().length > 0 || DOM.passphrase.val().length > 0) {
 314             if (!confirm("This will clear existing mnemonic and passphrase")) {
 315                 DOM.rootKey.val(bip32RootKey);
 316                 return
 317             }
 318         }
 319         hideValidationError();
 320         showPending();
 321         // Clear existing mnemonic and passphrase
 322         DOM.phrase.val("");
 323         DOM.passphrase.val("");
 324         seed = null;
 325         if (rootKeyChangedTimeoutEvent != null) {
 326             clearTimeout(rootKeyChangedTimeoutEvent);
 327         }
 328         rootKeyChangedTimeoutEvent = setTimeout(rootKeyChanged, 400);
 329     }
 330
 331     function rootKeyChanged() {
 332         showPending();
 333         hideValidationError();
 334         var rootKeyBase58 = DOM.rootKey.val();
 335         var errorText = validateRootKey(rootKeyBase58);
 336         if (errorText) {
 337             showValidationError(errorText);
 338             return;
 339         }
 340         // Calculate and display
 341         calcBip32RootKeyFromBase58(rootKeyBase58);
 342         calcForDerivationPath();
 343     }
 344
 345     function litecoinUseLtubChanged() {
 346         litecoinUseLtub = DOM.litecoinUseLtub.prop("checked");
 347         if (litecoinUseLtub) {
 348             network = bitcoinjs.bitcoin.networks.litecoin;
 349         }
 350         else {
 351             network = bitcoinjs.bitcoin.networks.litecoinXprv;
 352         }
 353         phraseChanged();
 354     }
 355
 356     function calcForDerivationPath() {
 357         clearDerivedKeys();
 358         clearAddressesList();
 359         showPending();
 360         // Don't show segwit if it's selected but network doesn't support it
 361         if (segwitSelected() && !networkHasSegwit()) {
 362             return;
 363         }
 364         // Get the derivation path
 365         var derivationPath = getDerivationPath();
 366         var errorText = findDerivationPathErrors(derivationPath);
 367         if (errorText) {
 368             showValidationError(errorText);
 369             return;
 370         }
 371         bip32ExtendedKey = calcBip32ExtendedKey(derivationPath);
 372         if (bip44TabSelected()) {
 373             displayBip44Info();
 374         }
 375         else if (bip49TabSelected()) {
 376             displayBip49Info();
 377         }
 378         else if (bip84TabSelected()) {
 379             displayBip84Info();
 380         }
 381         displayBip32Info();
 382     }
 383
 384     function generateClicked() {
 385         if (isUsingOwnEntropy()) {
 386             return;
 387         }
 388         clearDisplay();
 389         showPending();
 390         setTimeout(function() {
 391             setMnemonicLanguage();
 392             var phrase = generateRandomPhrase();
 393             if (!phrase) {
 394                 return;
 395             }
 396             phraseChanged();
 397         }, 50);
 398     }
 399
 400     function languageChanged() {
 401         setTimeout(function() {
 402             setMnemonicLanguage();
 403             if (DOM.phrase.val().length > 0) {
 404                 var newPhrase = convertPhraseToNewLanguage();
 405                 DOM.phrase.val(newPhrase);
 406                 phraseChanged();
 407             }
 408             else {
 409                 DOM.generate.trigger("click");
 410             }
 411         }, 50);
 412     }
 413
 414     function useBitpayAddressesChange() {
 415         setBitcoinCashNetworkValues();
 416         phraseChanged();
 417     }
 418
 419     function toggleIndexes() {
 420         showIndex = !showIndex;
 421         $("td.index span").toggleClass("invisible");
 422     }
 423
 424     function toggleAddresses() {
 425         showAddress = !showAddress;
 426         $("td.address span").toggleClass("invisible");
 427     }
 428
 429     function togglePublicKeys() {
 430         showPubKey = !showPubKey;
 431         $("td.pubkey span").toggleClass("invisible");
 432     }
 433
 434     function togglePrivateKeys() {
 435         showPrivKey = !showPrivKey;
 436         $("td.privkey span").toggleClass("invisible");
 437     }
 438
 439     // Private methods
 440
 441     function generateRandomPhrase() {
 442         if (!hasStrongRandom()) {
 443             var errorText = "This browser does not support strong randomness";
 444             showValidationError(errorText);
 445             return;
 446         }
 447         // get the amount of entropy to use
 448         var numWords = parseInt(DOM.generatedStrength.val());
 449         var strength = numWords / 3 * 32;
 450         var buffer = new Uint8Array(strength / 8);
 451         // create secure entropy
 452         var data = crypto.getRandomValues(buffer);
 453         // show the words
 454         var words = mnemonic.toMnemonic(data);
 455         DOM.phrase.val(words);
 456         // show the entropy
 457         var entropyHex = uint8ArrayToHex(data);
 458         DOM.entropy.val(entropyHex);
 459         // ensure entropy fields are consistent with what is being displayed
 460         DOM.entropyMnemonicLength.val("raw");
 461         return words;
 462     }
 463
 464     function calcBip32RootKeyFromSeed(phrase, passphrase) {
 465         seed = mnemonic.toSeed(phrase, passphrase);
 466         bip32RootKey = bitcoinjs.bitcoin.HDNode.fromSeedHex(seed, network);
 467     }
 468
 469     function calcBip32RootKeyFromBase58(rootKeyBase58) {
 470         bip32RootKey = bitcoinjs.bitcoin.HDNode.fromBase58(rootKeyBase58, network);
 471     }
 472
 473     function calcBip32ExtendedKey(path) {
 474         // Check there's a root key to derive from
 475         if (!bip32RootKey) {
 476             return bip32RootKey;
 477         }
 478         var extendedKey = bip32RootKey;
 479         // Derive the key from the path
 480         var pathBits = path.split("/");
 481         for (var i=0; i<pathBits.length; i++) {
 482             var bit = pathBits[i];
 483             var index = parseInt(bit);
 484             if (isNaN(index)) {
 485                 continue;
 486             }
 487             var hardened = bit[bit.length-1] == "'";
 488             var isPriv = !(extendedKey.isNeutered());
 489             var invalidDerivationPath = hardened && !isPriv;
 490             if (invalidDerivationPath) {
 491                 extendedKey = null;
 492             }
 493             else if (hardened) {
 494                 extendedKey = extendedKey.deriveHardened(index);
 495             }
 496             else {
 497                 extendedKey = extendedKey.derive(index);
 498             }
 499         }
 500         return extendedKey
 501     }
 502
 503     function showValidationError(errorText) {
 504         DOM.feedback
 505             .text(errorText)
 506             .show();
 507     }
 508
 509     function hideValidationError() {
 510         DOM.feedback
 511             .text("")
 512             .hide();
 513     }
 514
 515     function findPhraseErrors(phrase) {
 516         // Preprocess the words
 517         phrase = mnemonic.normalizeString(phrase);
 518         var words = phraseToWordArray(phrase);
 519         // Detect blank phrase
 520         if (words.length == 0) {
 521             return "Blank mnemonic";
 522         }
 523         // Check each word
 524         for (var i=0; i<words.length; i++) {
 525             var word = words[i];
 526             var language = getLanguage();
 527             if (WORDLISTS[language].indexOf(word) == -1) {
 528                 console.log("Finding closest match to " + word);
 529                 var nearestWord = findNearestWord(word);
 530                 return word + " not in wordlist, did you mean " + nearestWord + "?";
 531             }
 532         }
 533         // Check the words are valid
 534         var properPhrase = wordArrayToPhrase(words);
 535         var isValid = mnemonic.check(properPhrase);
 536         if (!isValid) {
 537             return "Invalid mnemonic";
 538         }
 539         return false;
 540     }
 541
 542     function validateRootKey(rootKeyBase58) {
 543         try {
 544             bitcoinjs.bitcoin.HDNode.fromBase58(rootKeyBase58, network);
 545         }
 546         catch (e) {
 547             return "Invalid root key";
 548         }
 549         return "";
 550     }
 551
 552     function getDerivationPath() {
 553         if (bip44TabSelected()) {
 554             var purpose = parseIntNoNaN(DOM.bip44purpose.val(), 44);
 555             var coin = parseIntNoNaN(DOM.bip44coin.val(), 0);
 556             var account = parseIntNoNaN(DOM.bip44account.val(), 0);
 557             var change = parseIntNoNaN(DOM.bip44change.val(), 0);
 558             var path = "m/";
 559             path += purpose + "'/";
 560             path += coin + "'/";
 561             path += account + "'/";
 562             path += change;
 563             DOM.bip44path.val(path);
 564             var derivationPath = DOM.bip44path.val();
 565             console.log("Using derivation path from BIP44 tab: " + derivationPath);
 566             return derivationPath;
 567         }
 568         else if (bip49TabSelected()) {
 569             var purpose = parseIntNoNaN(DOM.bip49purpose.val(), 49);
 570             var coin = parseIntNoNaN(DOM.bip49coin.val(), 0);
 571             var account = parseIntNoNaN(DOM.bip49account.val(), 0);
 572             var change = parseIntNoNaN(DOM.bip49change.val(), 0);
 573             var path = "m/";
 574             path += purpose + "'/";
 575             path += coin + "'/";
 576             path += account + "'/";
 577             path += change;
 578             DOM.bip49path.val(path);
 579             var derivationPath = DOM.bip49path.val();
 580             console.log("Using derivation path from BIP49 tab: " + derivationPath);
 581             return derivationPath;
 582         }
 583         else if (bip84TabSelected()) {
 584             var purpose = parseIntNoNaN(DOM.bip84purpose.val(), 84);
 585             var coin = parseIntNoNaN(DOM.bip84coin.val(), 0);
 586             var account = parseIntNoNaN(DOM.bip84account.val(), 0);
 587             var change = parseIntNoNaN(DOM.bip84change.val(), 0);
 588             var path = "m/";
 589             path += purpose + "'/";
 590             path += coin + "'/";
 591             path += account + "'/";
 592             path += change;
 593             DOM.bip84path.val(path);
 594             var derivationPath = DOM.bip84path.val();
 595             console.log("Using derivation path from BIP84 tab: " + derivationPath);
 596             return derivationPath;
 597         }
 598         else if (bip32TabSelected()) {
 599             var derivationPath = DOM.bip32path.val();
 600             console.log("Using derivation path from BIP32 tab: " + derivationPath);
 601             return derivationPath;
 602         }
 603         else if (bip141TabSelected()) {
 604             var derivationPath = DOM.bip141path.val();
 605             console.log("Using derivation path from BIP141 tab: " + derivationPath);
 606             return derivationPath;
 607         }
 608         else {
 609             console.log("Unknown derivation path");
 610         }
 611     }
 612
 613     function findDerivationPathErrors(path) {
 614         // TODO is not perfect but is better than nothing
 615         // Inspired by
 616         // https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki#test-vectors
 617         // and
 618         // https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki#extended-keys
 619         var maxDepth = 255; // TODO verify this!!
 620         var maxIndexValue = Math.pow(2, 31); // TODO verify this!!
 621         if (path[0] != "m") {
 622             return "First character must be 'm'";
 623         }
 624         if (path.length > 1) {
 625             if (path[1] != "/") {
 626                 return "Separator must be '/'";
 627             }
 628             var indexes = path.split("/");
 629             if (indexes.length > maxDepth) {
 630                 return "Derivation depth is " + indexes.length + ", must be less than " + maxDepth;
 631             }
 632             for (var depth = 1; depth<indexes.length; depth++) {
 633                 var index = indexes[depth];
 634                 var invalidChars = index.replace(/^[0-9]+'?$/g, "")
 635                 if (invalidChars.length > 0) {
 636                     return "Invalid characters " + invalidChars + " found at depth " + depth;
 637                 }
 638                 var indexValue = parseInt(index.replace("'", ""));
 639                 if (isNaN(depth)) {
 640                     return "Invalid number at depth " + depth;
 641                 }
 642                 if (indexValue > maxIndexValue) {
 643                     return "Value of " + indexValue + " at depth " + depth + " must be less than " + maxIndexValue;
 644                 }
 645             }
 646         }
 647         // Check root key exists or else derivation path is useless!
 648         if (!bip32RootKey) {
 649             return "No root key";
 650         }
 651         // Check no hardened derivation path when using xpub keys
 652         var hardenedPath = path.indexOf("'") > -1;
 653         var hardenedAddresses = bip32TabSelected() && DOM.hardenedAddresses.prop("checked");
 654         var hardened = hardenedPath || hardenedAddresses;
 655         var isXpubkey = bip32RootKey.isNeutered();
 656         if (hardened && isXpubkey) {
 657             return "Hardened derivation path is invalid with xpub key";
 658         }
 659         return false;
 660     }
 661
 662     function displayBip44Info() {
 663         // Get the derivation path for the account
 664         var purpose = parseIntNoNaN(DOM.bip44purpose.val(), 44);
 665         var coin = parseIntNoNaN(DOM.bip44coin.val(), 0);
 666         var account = parseIntNoNaN(DOM.bip44account.val(), 0);
 667         var path = "m/";
 668         path += purpose + "'/";
 669         path += coin + "'/";
 670         path += account + "'/";
 671         // Calculate the account extended keys
 672         var accountExtendedKey = calcBip32ExtendedKey(path);
 673         var accountXprv = accountExtendedKey.toBase58();
 674         var accountXpub = accountExtendedKey.neutered().toBase58();
 675         // Display the extended keys
 676         DOM.bip44accountXprv.val(accountXprv);
 677         DOM.bip44accountXpub.val(accountXpub);
 678     }
 679
 680     function displayBip49Info() {
 681         // Get the derivation path for the account
 682         var purpose = parseIntNoNaN(DOM.bip49purpose.val(), 49);
 683         var coin = parseIntNoNaN(DOM.bip49coin.val(), 0);
 684         var account = parseIntNoNaN(DOM.bip49account.val(), 0);
 685         var path = "m/";
 686         path += purpose + "'/";
 687         path += coin + "'/";
 688         path += account + "'/";
 689         // Calculate the account extended keys
 690         var accountExtendedKey = calcBip32ExtendedKey(path);
 691         var accountXprv = accountExtendedKey.toBase58();
 692         var accountXpub = accountExtendedKey.neutered().toBase58();
 693         // Display the extended keys
 694         DOM.bip49accountXprv.val(accountXprv);
 695         DOM.bip49accountXpub.val(accountXpub);
 696     }
 697
 698     function displayBip84Info() {
 699         // Get the derivation path for the account
 700         var purpose = parseIntNoNaN(DOM.bip84purpose.val(), 84);
 701         var coin = parseIntNoNaN(DOM.bip84coin.val(), 0);
 702         var account = parseIntNoNaN(DOM.bip84account.val(), 0);
 703         var path = "m/";
 704         path += purpose + "'/";
 705         path += coin + "'/";
 706         path += account + "'/";
 707         // Calculate the account extended keys
 708         var accountExtendedKey = calcBip32ExtendedKey(path);
 709         var accountXprv = accountExtendedKey.toBase58();
 710         var accountXpub = accountExtendedKey.neutered().toBase58();
 711         // Display the extended keys
 712         DOM.bip84accountXprv.val(accountXprv);
 713         DOM.bip84accountXpub.val(accountXpub);
 714     }
 715
 716     function displayBip32Info() {
 717         // Display the key
 718         DOM.seed.val(seed);
 719         var rootKey = bip32RootKey.toBase58();
 720         DOM.rootKey.val(rootKey);
 721         var xprvkeyB58 = "NA";
 722         if (!bip32ExtendedKey.isNeutered()) {
 723             xprvkeyB58 = bip32ExtendedKey.toBase58();
 724         }
 725         var extendedPrivKey = xprvkeyB58;
 726         DOM.extendedPrivKey.val(extendedPrivKey);
 727         var extendedPubKey = bip32ExtendedKey.neutered().toBase58();
 728         DOM.extendedPubKey.val(extendedPubKey);
 729         // Display the addresses and privkeys
 730         clearAddressesList();
 731         var initialAddressCount = parseInt(DOM.rowsToAdd.val());
 732         displayAddresses(0, initialAddressCount);
 733     }
 734
 735     function displayAddresses(start, total) {
 736         generationProcesses.push(new (function() {
 737
 738             var rows = [];
 739
 740             this.stop = function() {
 741                 for (var i=0; i<rows.length; i++) {
 742                     rows[i].shouldGenerate = false;
 743                 }
 744                 hidePending();
 745             }
 746
 747             for (var i=0; i<total; i++) {
 748                 var index = i + start;
 749                 var isLast = i == total - 1;
 750                 rows.push(new TableRow(index, isLast));
 751             }
 752
 753         })());
 754     }
 755
 756     function segwitSelected() {
 757         return bip49TabSelected() || bip84TabSelected() || bip141TabSelected();
 758     }
 759
 760     function p2wpkhSelected() {
 761         return bip84TabSelected() ||
 762                 bip141TabSelected() && DOM.bip141semantics.val() == "p2wpkh";
 763     }
 764
 765     function p2wpkhInP2shSelected() {
 766         return bip49TabSelected() ||
 767             (bip141TabSelected() && DOM.bip141semantics.val() == "p2wpkh-p2sh");
 768     }
 769
 770     function TableRow(index, isLast) {
 771
 772         var self = this;
 773         this.shouldGenerate = true;
 774         var useHardenedAddresses = DOM.hardenedAddresses.prop("checked");
 775         var useBip38 = DOM.useBip38.prop("checked");
 776         var bip38password = DOM.bip38Password.val();
 777         var isSegwit = segwitSelected();
 778         var segwitAvailable = networkHasSegwit();
 779         var isP2wpkh = p2wpkhSelected();
 780         var isP2wpkhInP2sh = p2wpkhInP2shSelected();
 781
 782         function init() {
 783             calculateValues();
 784         }
 785
 786         function calculateValues() {
 787             setTimeout(function() {
 788                 if (!self.shouldGenerate) {
 789                     return;
 790                 }
 791                 // derive HDkey for this row of the table
 792                 var key = "NA";
 793                 if (useHardenedAddresses) {
 794                     key = bip32ExtendedKey.deriveHardened(index);
 795                 }
 796                 else {
 797                     key = bip32ExtendedKey.derive(index);
 798                 }
 799                 // bip38 requires uncompressed keys
 800                 // see https://github.com/iancoleman/bip39/issues/140#issuecomment-352164035
 801                 var keyPair = key.keyPair;
 802                 var useUncompressed = useBip38;
 803                 if (useUncompressed) {
 804                     keyPair = new bitcoinjs.bitcoin.ECPair(keyPair.d, null, { compressed: false });
 805                 }
 806                 // get address
 807                 var address = keyPair.getAddress().toString();
 808                 // get privkey
 809                 var hasPrivkey = !key.isNeutered();
 810                 var privkey = "NA";
 811                 if (hasPrivkey) {
 812                     privkey = keyPair.toWIF(network);
 813                     // BIP38 encode private key if required
 814                     if (useBip38) {
 815                         privkey = bitcoinjsBip38.encrypt(keyPair.d.toBuffer(), false, bip38password, function(p) {
 816                             console.log("Progressed " + p.percent.toFixed(1) + "% for index " + index);
 817                         });
 818                     }
 819                 }
 820                 // get pubkey
 821                 var pubkey = keyPair.getPublicKeyBuffer().toString('hex');
 822                 var indexText = getDerivationPath() + "/" + index;
 823                 if (useHardenedAddresses) {
 824                     indexText = indexText + "'";
 825                 }
 826                 // Ethereum values are different
 827                 if (networks[DOM.network.val()].name == "ETH - Ethereum") {
 828                     var privKeyBuffer = keyPair.d.toBuffer(32);
 829                     privkey = privKeyBuffer.toString('hex');
 830                     var addressBuffer = ethUtil.privateToAddress(privKeyBuffer);
 831                     var hexAddress = addressBuffer.toString('hex');
 832                     var checksumAddress = ethUtil.toChecksumAddress(hexAddress);
 833                     address = ethUtil.addHexPrefix(checksumAddress);
 834                     privkey = ethUtil.addHexPrefix(privkey);
 835                     pubkey = ethUtil.addHexPrefix(pubkey);
 836                 }
 837                 // Ripple values are different
 838                 if (networks[DOM.network.val()].name == "XRP - Ripple") {
 839                     privkey = convertRipplePriv(privkey);
 840                     address = convertRippleAdrr(address);
 841                 }
 842                 // Segwit addresses are different
 843                 if (isSegwit) {
 844                     if (!segwitAvailable) {
 845                         return;
 846                     }
 847                     if (isP2wpkh) {
 848                         var keyhash = bitcoinjs.bitcoin.crypto.hash160(key.getPublicKeyBuffer());
 849                         var scriptpubkey = bitcoinjs.bitcoin.script.witnessPubKeyHash.output.encode(keyhash);
 850                         address = bitcoinjs.bitcoin.address.fromOutputScript(scriptpubkey, network)
 851                     }
 852                     else if (isP2wpkhInP2sh) {
 853                         var keyhash = bitcoinjs.bitcoin.crypto.hash160(key.getPublicKeyBuffer());
 854                         var scriptsig = bitcoinjs.bitcoin.script.witnessPubKeyHash.output.encode(keyhash);
 855                         var addressbytes = bitcoinjs.bitcoin.crypto.hash160(scriptsig);
 856                         var scriptpubkey = bitcoinjs.bitcoin.script.scriptHash.output.encode(addressbytes);
 857                         address = bitcoinjs.bitcoin.address.fromOutputScript(scriptpubkey, network)
 858                     }
 859                 }
 860                 addAddressToList(indexText, address, pubkey, privkey);
 861                 if (isLast) {
 862                     hidePending();
 863                     updateCsv();
 864                 }
 865             }, 50)
 866         }
 867
 868         init();
 869
 870     }
 871
 872     function showMore() {
 873         var rowsToAdd = parseInt(DOM.rowsToAdd.val());
 874         if (isNaN(rowsToAdd)) {
 875             rowsToAdd = 20;
 876             DOM.rowsToAdd.val("20");
 877         }
 878         var start = parseInt(DOM.moreRowsStartIndex.val())
 879         if (isNaN(start)) {
 880             start = lastIndexInTable() + 1;
 881         }
 882         else {
 883             var newStart = start + rowsToAdd;
 884             DOM.moreRowsStartIndex.val(newStart);
 885         }
 886         if (rowsToAdd > 200) {
 887             var msg = "Generating " + rowsToAdd + " rows could take a while. ";
 888             msg += "Do you want to continue?";
 889             if (!confirm(msg)) {
 890                 return;
 891             }
 892         }
 893         displayAddresses(start, rowsToAdd);
 894     }
 895
 896     function clearDisplay() {
 897         clearAddressesList();
 898         clearKeys();
 899         hideValidationError();
 900     }
 901
 902     function clearAddressesList() {
 903         DOM.addresses.empty();
 904         DOM.csv.val("");
 905         stopGenerating();
 906     }
 907
 908     function stopGenerating() {
 909         while (generationProcesses.length > 0) {
 910             var generation = generationProcesses.shift();
 911             generation.stop();
 912         }
 913     }
 914
 915     function clearKeys() {
 916         clearRootKey();
 917         clearDerivedKeys();
 918     }
 919
 920     function clearRootKey() {
 921         DOM.rootKey.val("");
 922     }
 923
 924     function clearDerivedKeys() {
 925         DOM.extendedPrivKey.val("");
 926         DOM.extendedPubKey.val("");
 927         DOM.bip44accountXprv.val("");
 928         DOM.bip44accountXpub.val("");
 929     }
 930
 931     function addAddressToList(indexText, address, pubkey, privkey) {
 932         var row = $(addressRowTemplate.html());
 933         // Elements
 934         var indexCell = row.find(".index span");
 935         var addressCell = row.find(".address span");
 936         var pubkeyCell = row.find(".pubkey span");
 937         var privkeyCell = row.find(".privkey span");
 938         // Content
 939         indexCell.text(indexText);
 940         addressCell.text(address);
 941         pubkeyCell.text(pubkey);
 942         privkeyCell.text(privkey);
 943         // Visibility
 944         if (!showIndex) {
 945             indexCell.addClass("invisible");
 946         }
 947         if (!showAddress) {
 948             addressCell.addClass("invisible");
 949         }
 950         if (!showPubKey) {
 951             pubkeyCell.addClass("invisible");
 952         }
 953         if (!showPrivKey) {
 954             privkeyCell.addClass("invisible");
 955         }
 956         DOM.addresses.append(row);
 957         var rowShowQrEls = row.find("[data-show-qr]");
 958         setQrEvents(rowShowQrEls);
 959     }
 960
 961     function hasStrongRandom() {
 962         return 'crypto' in window && window['crypto'] !== null;
 963     }
 964
 965     function disableForms() {
 966         $("form").on("submit", function(e) {
 967             e.preventDefault();
 968         });
 969     }
 970
 971     function parseIntNoNaN(val, defaultVal) {
 972         var v = parseInt(val);
 973         if (isNaN(v)) {
 974             return defaultVal;
 975         }
 976         return v;
 977     }
 978
 979     function showPending() {
 980         DOM.feedback
 981             .text("Calculating...")
 982             .show();
 983     }
 984
 985     function findNearestWord(word) {
 986         var language = getLanguage();
 987         var words = WORDLISTS[language];
 988         var minDistance = 99;
 989         var closestWord = words[0];
 990         for (var i=0; i<words.length; i++) {
 991             var comparedTo = words[i];
 992             if (comparedTo.indexOf(word) == 0) {
 993                 return comparedTo;
 994             }
 995             var distance = Levenshtein.get(word, comparedTo);
 996             if (distance < minDistance) {
 997                 closestWord = comparedTo;
 998                 minDistance = distance;
 999             }
1000         }
1001         return closestWord;
1002     }
1003
1004     function hidePending() {
1005         DOM.feedback
1006             .text("")
1007             .hide();
1008     }
1009
1010     function populateNetworkSelect() {
1011         for (var i=0; i<networks.length; i++) {
1012             var network = networks[i];
1013             var option = $("<option>");
1014             option.attr("value", i);
1015             option.text(network.name);
1016             if (network.name == "BTC - Bitcoin") {
1017                 option.prop("selected", true);
1018             }
1019             DOM.phraseNetwork.append(option);
1020         }
1021     }
1022
1023     function populateClientSelect() {
1024         for (var i=0; i<clients.length; i++) {
1025             var client = clients[i];
1026             var option = $("<option>");
1027             option.attr("value", i);
1028             option.text(client.name);
1029             DOM.bip32Client.append(option);
1030         }
1031     }
1032
1033     function getLanguage() {
1034         var defaultLanguage = "english";
1035         // Try to get from existing phrase
1036         var language = getLanguageFromPhrase();
1037         // Try to get from url if not from phrase
1038         if (language.length == 0) {
1039             language = getLanguageFromUrl();
1040         }
1041         // Default to English if no other option
1042         if (language.length == 0) {
1043             language = defaultLanguage;
1044         }
1045         return language;
1046     }
1047
1048     function getLanguageFromPhrase(phrase) {
1049         // Check if how many words from existing phrase match a language.
1050         var language = "";
1051         if (!phrase) {
1052             phrase = DOM.phrase.val();
1053         }
1054         if (phrase.length > 0) {
1055             var words = phraseToWordArray(phrase);
1056             var languageMatches = {};
1057             for (l in WORDLISTS) {
1058                 // Track how many words match in this language
1059                 languageMatches[l] = 0;
1060                 for (var i=0; i<words.length; i++) {
1061                     var wordInLanguage = WORDLISTS[l].indexOf(words[i]) > -1;
1062                     if (wordInLanguage) {
1063                         languageMatches[l]++;
1064                     }
1065                 }
1066                 // Find languages with most word matches.
1067                 // This is made difficult due to commonalities between Chinese
1068                 // simplified vs traditional.
1069                 var mostMatches = 0;
1070                 var mostMatchedLanguages = [];
1071                 for (var l in languageMatches) {
1072                     var numMatches = languageMatches[l];
1073                     if (numMatches > mostMatches) {
1074                         mostMatches = numMatches;
1075                         mostMatchedLanguages = [l];
1076                     }
1077                     else if (numMatches == mostMatches) {
1078                         mostMatchedLanguages.push(l);
1079                     }
1080                 }
1081             }
1082             if (mostMatchedLanguages.length > 0) {
1083                 // Use first language and warn if multiple detected
1084                 language = mostMatchedLanguages[0];
1085                 if (mostMatchedLanguages.length > 1) {
1086                     console.warn("Multiple possible languages");
1087                     console.warn(mostMatchedLanguages);
1088                 }
1089             }
1090         }
1091         return language;
1092     }
1093
1094     function getLanguageFromUrl() {
1095         for (var language in WORDLISTS) {
1096             if (window.location.hash.indexOf(language) > -1) {
1097                 return language;
1098             }
1099         }
1100         return "";
1101     }
1102
1103     function setMnemonicLanguage() {
1104         var language = getLanguage();
1105         // Load the bip39 mnemonic generator for this language if required
1106         if (!(language in mnemonics)) {
1107             mnemonics[language] = new Mnemonic(language);
1108         }
1109         mnemonic = mnemonics[language];
1110     }
1111
1112     function convertPhraseToNewLanguage() {
1113         var oldLanguage = getLanguageFromPhrase();
1114         var newLanguage = getLanguageFromUrl();
1115         var oldPhrase = DOM.phrase.val();
1116         var oldWords = phraseToWordArray(oldPhrase);
1117         var newWords = [];
1118         for (var i=0; i<oldWords.length; i++) {
1119             var oldWord = oldWords[i];
1120             var index = WORDLISTS[oldLanguage].indexOf(oldWord);
1121             var newWord = WORDLISTS[newLanguage][index];
1122             newWords.push(newWord);
1123         }
1124         newPhrase = wordArrayToPhrase(newWords);
1125         return newPhrase;
1126     }
1127
1128     // TODO look at jsbip39 - mnemonic.splitWords
1129     function phraseToWordArray(phrase) {
1130         var words = phrase.split(/\s/g);
1131         var noBlanks = [];
1132         for (var i=0; i<words.length; i++) {
1133             var word = words[i];
1134             if (word.length > 0) {
1135                 noBlanks.push(word);
1136             }
1137         }
1138         return noBlanks;
1139     }
1140
1141     // TODO look at jsbip39 - mnemonic.joinWords
1142     function wordArrayToPhrase(words) {
1143         var phrase = words.join(" ");
1144         var language = getLanguageFromPhrase(phrase);
1145         if (language == "japanese" || language == "korean") {
1146             phrase = words.join("\u3000");
1147         }
1148         return phrase;
1149     }
1150
1151     function isUsingOwnEntropy() {
1152         return DOM.useEntropy.prop("checked");
1153     }
1154
1155     function setMnemonicFromEntropy() {
1156         clearEntropyFeedback();
1157         // Get entropy value
1158         var entropyStr = DOM.entropy.val();
1159         // Work out minimum base for entropy
1160         var entropy = Entropy.fromString(entropyStr);
1161         if (entropy.binaryStr.length == 0) {
1162             return;
1163         }
1164         // Show entropy details
1165         showEntropyFeedback(entropy);
1166         // Use entropy hash if not using raw entropy
1167         var bits = entropy.binaryStr;
1168         var mnemonicLength = DOM.entropyMnemonicLength.val();
1169         if (mnemonicLength != "raw") {
1170             // Get bits by hashing entropy with SHA256
1171             var hash = sjcl.hash.sha256.hash(entropy.cleanStr);
1172             var hex = sjcl.codec.hex.fromBits(hash);
1173             bits = BigInteger.parse(hex, 16).toString(2);
1174             while (bits.length % 256 != 0) {
1175                 bits = "0" + bits;
1176             }
1177             // Truncate hash to suit number of words
1178             mnemonicLength = parseInt(mnemonicLength);
1179             var numberOfBits = 32 * mnemonicLength / 3;
1180             bits = bits.substring(0, numberOfBits);
1181         }
1182         // Discard trailing entropy
1183         var bitsToUse = Math.floor(bits.length / 32) * 32;
1184         var start = bits.length - bitsToUse;
1185         var binaryStr = bits.substring(start);
1186         // Convert entropy string to numeric array
1187         var entropyArr = [];
1188         for (var i=0; i<binaryStr.length / 8; i++) {
1189             var byteAsBits = binaryStr.substring(i*8, i*8+8);
1190             var entropyByte = parseInt(byteAsBits, 2);
1191             entropyArr.push(entropyByte)
1192         }
1193         // Convert entropy array to mnemonic
1194         var phrase = mnemonic.toMnemonic(entropyArr);
1195         // Set the mnemonic in the UI
1196         DOM.phrase.val(phrase);
1197         // Show the word indexes
1198         showWordIndexes();
1199         // Show the checksum
1200         showChecksum();
1201     }
1202
1203     function clearEntropyFeedback() {
1204         DOM.entropyCrackTime.text("...");
1205         DOM.entropyType.text("");
1206         DOM.entropyWordCount.text("0");
1207         DOM.entropyEventCount.text("0");
1208         DOM.entropyBitsPerEvent.text("0");
1209         DOM.entropyBits.text("0");
1210         DOM.entropyFiltered.html("&nbsp;");
1211         DOM.entropyBinary.html("&nbsp;");
1212     }
1213
1214     function showEntropyFeedback(entropy) {
1215         var numberOfBits = entropy.binaryStr.length;
1216         var timeToCrack = "unknown";
1217         try {
1218             var z = zxcvbn(entropy.base.parts.join(""));
1219             timeToCrack = z.crack_times_display.offline_fast_hashing_1e10_per_second;
1220             if (z.feedback.warning != "") {
1221                 timeToCrack = timeToCrack + " - " + z.feedback.warning;
1222             };
1223         }
1224         catch (e) {
1225             console.log("Error detecting entropy strength with zxcvbn:");
1226             console.log(e);
1227         }
1228         var entropyTypeStr = getEntropyTypeStr(entropy);
1229         var wordCount = Math.floor(numberOfBits / 32) * 3;
1230         var bitsPerEvent = entropy.bitsPerEvent.toFixed(2);
1231         var spacedBinaryStr = addSpacesEveryElevenBits(entropy.binaryStr);
1232         DOM.entropyFiltered.html(entropy.cleanHtml);
1233         DOM.entropyType.text(entropyTypeStr);
1234         DOM.entropyCrackTime.text(timeToCrack);
1235         DOM.entropyEventCount.text(entropy.base.ints.length);
1236         DOM.entropyBits.text(numberOfBits);
1237         DOM.entropyWordCount.text(wordCount);
1238         DOM.entropyBinary.text(spacedBinaryStr);
1239         DOM.entropyBitsPerEvent.text(bitsPerEvent);
1240         // detect and warn of filtering
1241         var rawNoSpaces = DOM.entropy.val().replace(/\s/g, "");
1242         var cleanNoSpaces = entropy.cleanStr.replace(/\s/g, "");
1243         var isFiltered = rawNoSpaces.length != cleanNoSpaces.length;
1244         if (isFiltered) {
1245             DOM.entropyFilterWarning.removeClass('hidden');
1246         }
1247         else {
1248             DOM.entropyFilterWarning.addClass('hidden');
1249         }
1250     }
1251
1252     function getEntropyTypeStr(entropy) {
1253         var typeStr = entropy.base.str;
1254         // Add some detail if these are cards
1255         if (entropy.base.asInt == 52) {
1256             var cardDetail = []; // array of message strings
1257             // Detect duplicates
1258             var dupes = [];
1259             var dupeTracker = {};
1260             for (var i=0; i<entropy.base.parts.length; i++) {
1261                 var card = entropy.base.parts[i];
1262                 var cardUpper = card.toUpperCase();
1263                 if (cardUpper in dupeTracker) {
1264                     dupes.push(card);
1265                 }
1266                 dupeTracker[cardUpper] = true;
1267             }
1268             if (dupes.length > 0) {
1269                 var dupeWord = "duplicates";
1270                 if (dupes.length == 1) {
1271                     dupeWord = "duplicate";
1272                 }
1273                 var msg = dupes.length + " " + dupeWord + ": " + dupes.slice(0,3).join(" ");
1274                 if (dupes.length > 3) {
1275                     msg += "...";
1276                 }
1277                 cardDetail.push(msg);
1278             }
1279             // Detect full deck
1280             var uniqueCards = [];
1281             for (var uniqueCard in dupeTracker) {
1282                 uniqueCards.push(uniqueCard);
1283             }
1284             if (uniqueCards.length == 52) {
1285                 cardDetail.unshift("full deck");
1286             }
1287             // Detect missing cards
1288             var values = "A23456789TJQK";
1289             var suits = "CDHS";
1290             var missingCards = [];
1291             for (var i=0; i<suits.length; i++) {
1292                 for (var j=0; j<values.length; j++) {
1293                     var card = values[j] + suits[i];
1294                     if (!(card in dupeTracker)) {
1295                         missingCards.push(card);
1296                     }
1297                 }
1298             }
1299             // Display missing cards if six or less, ie clearly going for full deck
1300             if (missingCards.length > 0 && missingCards.length <= 6) {
1301                 var msg = missingCards.length + " missing: " + missingCards.slice(0,3).join(" ");
1302                 if (missingCards.length > 3) {
1303                     msg += "...";
1304                 }
1305                 cardDetail.push(msg);
1306             }
1307             // Add card details to typeStr
1308             if (cardDetail.length > 0) {
1309                 typeStr += " (" + cardDetail.join(", ") + ")";
1310             }
1311         }
1312         return typeStr;
1313     }
1314
1315     function setQrEvents(els) {
1316         els.on("mouseenter", createQr);
1317         els.on("mouseleave", destroyQr);
1318         els.on("click", toggleQr);
1319     }
1320
1321     function createQr(e) {
1322         var content = e.target.textContent || e.target.value;
1323         if (content) {
1324             var qrEl = kjua({
1325                 text: content,
1326                 render: "canvas",
1327                 size: 310,
1328                 ecLevel: 'H',
1329             });
1330             DOM.qrImage.append(qrEl);
1331             if (!showQr) {
1332                 DOM.qrHider.addClass("hidden");
1333             }
1334             else {
1335                 DOM.qrHider.removeClass("hidden");
1336             }
1337             DOM.qrContainer.removeClass("hidden");
1338         }
1339     }
1340
1341     function destroyQr() {
1342         DOM.qrImage.text("");
1343         DOM.qrContainer.addClass("hidden");
1344     }
1345
1346     function toggleQr() {
1347         showQr = !showQr;
1348         DOM.qrHider.toggleClass("hidden");
1349         DOM.qrHint.toggleClass("hidden");
1350     }
1351
1352     function bip44TabSelected() {
1353         return DOM.bip44tab.hasClass("active");
1354     }
1355
1356     function bip32TabSelected() {
1357         return DOM.bip32tab.hasClass("active");
1358     }
1359
1360     function networkHasSegwit() {
1361         return networks[DOM.network.val()].segwitAvailable;
1362     }
1363
1364     function bip49TabSelected() {
1365         return DOM.bip49tab.hasClass("active");
1366     }
1367
1368     function bip84TabSelected() {
1369         return DOM.bip84tab.hasClass("active");
1370     }
1371
1372     function bip141TabSelected() {
1373         return DOM.bip141tab.hasClass("active");
1374     }
1375
1376     function setHdCoin(coinValue) {
1377         DOM.bip44coin.val(coinValue);
1378         DOM.bip49coin.val(coinValue);
1379         DOM.bip84coin.val(coinValue);
1380     }
1381
1382     function showSegwitAvailable() {
1383         DOM.bip49unavailable.addClass("hidden");
1384         DOM.bip49available.removeClass("hidden");
1385         DOM.bip141unavailable.addClass("hidden");
1386         DOM.bip141available.removeClass("hidden");
1387     }
1388
1389     function showSegwitUnavailable() {
1390         DOM.bip49available.addClass("hidden");
1391         DOM.bip49unavailable.removeClass("hidden");
1392         DOM.bip141available.addClass("hidden");
1393         DOM.bip141unavailable.removeClass("hidden");
1394     }
1395
1396     function useBitpayAddresses() {
1397         return !(DOM.useBitpayAddresses.prop("checked"));
1398     }
1399
1400     function setBitcoinCashNetworkValues() {
1401         if (useBitpayAddresses()) {
1402             network = bitcoinjs.bitcoin.networks.bitcoin;
1403         }
1404         else {
1405             network = bitcoinjs.bitcoin.networks.bitcoinCashBitbpay;
1406         }
1407     }
1408
1409     function adjustNetworkForSegwit() {
1410         // If segwit is selected the xpub/xprv prefixes need to be adjusted
1411         // to avoid accidentally importing BIP49 xpub to BIP44 watch only
1412         // wallet.
1413         // See https://github.com/iancoleman/bip39/issues/125
1414         var segwitNetworks = null;
1415         // if a segwit network is alread selected, need to use base network to
1416         // look up new parameters
1417         if ("baseNetwork" in network) {
1418             network = bitcoinjs.bitcoin.networks[network.baseNetwork];
1419         }
1420         // choose the right segwit params
1421         if (p2wpkhSelected() && "p2wpkh" in network) {
1422             network = network.p2wpkh;
1423         }
1424         else if (p2wpkhInP2shSelected() && "p2wpkhInP2sh" in network) {
1425             network = network.p2wpkhInP2sh;
1426         }
1427     }
1428
1429     function lastIndexInTable() {
1430         var pathText = DOM.addresses.find(".index").last().text();
1431         var pathBits = pathText.split("/");
1432         var lastBit = pathBits[pathBits.length-1];
1433         var lastBitClean = lastBit.replace("'", "");
1434         return parseInt(lastBitClean);
1435     }
1436
1437     function uint8ArrayToHex(a) {
1438         var s = ""
1439         for (var i=0; i<a.length; i++) {
1440             var h = a[i].toString(16);
1441             while (h.length < 2) {
1442                 h = "0" + h;
1443             }
1444             s = s + h;
1445         }
1446         return s;
1447     }
1448
1449     function showWordIndexes() {
1450         var phrase = DOM.phrase.val();
1451         var words = phraseToWordArray(phrase);
1452         var wordIndexes = [];
1453         var language = getLanguage();
1454         for (var i=0; i<words.length; i++) {
1455             var word = words[i];
1456             var wordIndex = WORDLISTS[language].indexOf(word);
1457             wordIndexes.push(wordIndex);
1458         }
1459         var wordIndexesStr = wordIndexes.join(", ");
1460         DOM.entropyWordIndexes.text(wordIndexesStr);
1461     }
1462
1463     function showChecksum() {
1464         var phrase = DOM.phrase.val();
1465         var words = phraseToWordArray(phrase);
1466         var checksumBitlength = words.length / 3;
1467         var checksum = "";
1468         var binaryStr = "";
1469         var language = getLanguage();
1470         for (var i=words.length-1; i>=0; i--) {
1471             var word = words[i];
1472             var wordIndex = WORDLISTS[language].indexOf(word);
1473             var wordBinary = wordIndex.toString(2);
1474             while (wordBinary.length < 11) {
1475                 wordBinary = "0" + wordBinary;
1476             }
1477             var binaryStr = wordBinary + binaryStr;
1478             if (binaryStr.length >= checksumBitlength) {
1479                 var start = binaryStr.length - checksumBitlength;
1480                 var end = binaryStr.length;
1481                 checksum = binaryStr.substring(start, end);
1482                 // add spaces so the last group is 11 bits, not the first
1483                 checksum = checksum.split("").reverse().join("")
1484                 checksum = addSpacesEveryElevenBits(checksum);
1485                 checksum = checksum.split("").reverse().join("")
1486                 break;
1487             }
1488         }
1489         DOM.entropyChecksum.text(checksum);
1490     }
1491
1492     function updateCsv() {
1493         var tableCsv = "path,address,public key,private key\n";
1494         var rows = DOM.addresses.find("tr");
1495         for (var i=0; i<rows.length; i++) {
1496             var row = $(rows[i]);
1497             var cells = row.find("td");
1498             for (var j=0; j<cells.length; j++) {
1499                 var cell = $(cells[j]);
1500                 if (!cell.children().hasClass("invisible")) {
1501                     tableCsv = tableCsv + cell.text();
1502                 }
1503                 if (j != cells.length - 1) {
1504                     tableCsv = tableCsv + ",";
1505                 }
1506             }
1507             tableCsv = tableCsv + "\n";
1508         }
1509         DOM.csv.val(tableCsv);
1510     }
1511
1512     function addSpacesEveryElevenBits(binaryStr) {
1513         return binaryStr.match(/.{1,11}/g).join(" ");
1514     }
1515
1516     var networks = [
1517         {
1518             name: "AXE - Axe",
1519             segwitAvailable: false,
1520             onSelect: function() {
1521                 network = bitcoinjs.bitcoin.networks.axe;
1522                 setHdCoin(0);
1523             },
1524         },
1525         {
1526             name: "BCH - Bitcoin Cash",
1527             segwitAvailable: false,
1528             onSelect: function() {
1529                 DOM.useBitpayAddressesContainer.removeClass("hidden");
1530                 setBitcoinCashNetworkValues();
1531                 setHdCoin(145);
1532             },
1533         },
1534         {
1535             name: "BLK - BlackCoin",
1536             segwitAvailable: false,
1537             onSelect: function() {
1538                 network = bitcoinjs.bitcoin.networks.blackcoin;
1539                 setHdCoin(10);
1540             },
1541         },
1542         {
1543             name: "BTC - Bitcoin",
1544             segwitAvailable: true,
1545             onSelect: function() {
1546                 network = bitcoinjs.bitcoin.networks.bitcoin;
1547                 setHdCoin(0);
1548             },
1549         },
1550         {
1551             name: "BTC - Bitcoin Testnet",
1552             segwitAvailable: true,
1553             onSelect: function() {
1554                 network = bitcoinjs.bitcoin.networks.testnet;
1555                 setHdCoin(1);
1556             },
1557         },
1558         {
1559             name: "BTG - Bitcoin Gold",
1560             segwitAvailable: true,
1561             onSelect: function() {
1562                 network = bitcoinjs.bitcoin.networks.bgold;
1563                 setHdCoin(0);
1564             },
1565         },
1566         {
1567             name: "CLAM - Clams",
1568             segwitAvailable: false,
1569             onSelect: function() {
1570                 network = bitcoinjs.bitcoin.networks.clam;
1571                 setHdCoin(23);
1572             },
1573         },
1574         {
1575             name: "CRW - Crown",
1576             segwitAvailable: false,
1577             onSelect: function() {
1578                 network = bitcoinjs.bitcoin.networks.crown;
1579                 setHdCoin(72);
1580             },
1581         },
1582         {
1583             name: "DASH - Dash",
1584             segwitAvailable: false,
1585             onSelect: function() {
1586                 network = bitcoinjs.bitcoin.networks.dash;
1587                 setHdCoin(5);
1588             },
1589         },
1590         {
1591             name: "DASH - Dash Testnet",
1592             segwitAvailable: false,
1593             onSelect: function() {
1594                 network = bitcoinjs.bitcoin.networks.dashtn;
1595                 setHdCoin(1);
1596             },
1597         },
1598         {
1599             name: "DNR - Denarius",
1600             segwitAvailable: false,
1601             onSelect: function() {
1602                 network = bitcoinjs.bitcoin.networks.denarius;
1603                 setHdCoin(0);
1604             },
1605         },
1606         {
1607             name: "DOGE - Dogecoin",
1608             segwitAvailable: false,
1609             onSelect: function() {
1610                 network = bitcoinjs.bitcoin.networks.dogecoin;
1611                 setHdCoin(3);
1612             },
1613         },
1614         {
1615             name: "ETH - Ethereum",
1616             segwitAvailable: false,
1617             onSelect: function() {
1618                 network = bitcoinjs.bitcoin.networks.bitcoin;
1619                 setHdCoin(60);
1620             },
1621         },
1622         {
1623             name: "FJC - Fujicoin",
1624             segwitAvailable: false,
1625             onSelect: function() {
1626                 network = bitcoinjs.bitcoin.networks.fujicoin;
1627                 setHdCoin(75);
1628             },
1629         },
1630         {
1631             name: "GAME - GameCredits",
1632             segwitAvailable: false,
1633             onSelect: function() {
1634                 network = bitcoinjs.bitcoin.networks.game;
1635                 setHdCoin(101);
1636             },
1637         },
1638         {
1639             name: "JBS - Jumbucks",
1640             segwitAvailable: false,
1641             onSelect: function() {
1642                 network = bitcoinjs.bitcoin.networks.jumbucks;
1643                 setHdCoin(26);
1644             },
1645         },
1646         {
1647             name: "KMD - Komodo",
1648             bip49available: false,
1649             onSelect: function() {
1650                 network = bitcoinjs.bitcoin.networks.komodo;
1651                 setHdCoin(141);
1652             },
1653         },
1654         {
1655             name: "LTC - Litecoin",
1656             segwitAvailable: true,
1657             onSelect: function() {
1658                 network = bitcoinjs.bitcoin.networks.litecoin;
1659                 setHdCoin(2);
1660                 DOM.litecoinLtubContainer.removeClass("hidden");
1661             },
1662         },
1663         {
1664             name: "MAZA - Maza",
1665             segwitAvailable: false,
1666             onSelect: function() {
1667                 network = bitcoinjs.bitcoin.networks.maza;
1668                 setHdCoin(13);
1669             },
1670         },
1671         {
1672             name: "MONA - Monacoin",
1673             segwitAvailable: true,
1674             onSelect: function() {
1675                 network = bitcoinjs.bitcoin.networks.monacoin,
1676                 setHdCoin(22);
1677             },
1678         },
1679         {
1680             name: "NMC - Namecoin",
1681             segwitAvailable: false,
1682             onSelect: function() {
1683                 network = bitcoinjs.bitcoin.networks.namecoin;
1684                 setHdCoin(7);
1685             },
1686         },
1687         {
1688             name: "ONX - Onixcoin",
1689             segwitAvailable: false,
1690             onSelect: function() {
1691                 network = bitcoinjs.bitcoin.networks.onixcoin;
1692                 setHdCoin(174);
1693             },
1694         },
1695         {
1696             name: "PIVX - PIVX",
1697             segwitAvailable: false,
1698             onSelect: function() {
1699                 network = bitcoinjs.bitcoin.networks.pivx;
1700                 setHdCoin(119);
1701             },
1702         },
1703         {
1704             name: "PIVX - PIVX Testnet",
1705             segwitAvailable: false,
1706             onSelect: function() {
1707                 network = bitcoinjs.bitcoin.networks.pivxtestnet;
1708                 setHdCoin(1);
1709             },
1710         },
1711         {
1712             name: "PPC - Peercoin",
1713             segwitAvailable: false,
1714             onSelect: function() {
1715                 network = bitcoinjs.bitcoin.networks.peercoin;
1716                 setHdCoin(6);
1717             },
1718         },
1719         {
1720             name: "SDC - ShadowCash",
1721             segwitAvailable: false,
1722             onSelect: function() {
1723                 network = bitcoinjs.bitcoin.networks.shadow;
1724                 setHdCoin(35);
1725             },
1726         },
1727         {
1728             name: "SDC - ShadowCash Testnet",
1729             segwitAvailable: false,
1730             onSelect: function() {
1731                 network = bitcoinjs.bitcoin.networks.shadowtn;
1732                 setHdCoin(1);
1733             },
1734         },
1735         {
1736             name: "SLM - Slimcoin",
1737             segwitAvailable: false,
1738             onSelect: function() {
1739                 network = bitcoinjs.bitcoin.networks.slimcoin;
1740                 setHdCoin(63);
1741             },
1742         },
1743         {
1744             name: "SLM - Slimcoin Testnet",
1745             segwitAvailable: false,
1746             onSelect: function() {
1747                 network = bitcoinjs.bitcoin.networks.slimcointn;
1748                 setHdCoin(111);
1749             },
1750         },
1751         {
1752             name: "USNBT - NuBits",
1753             segwitAvailable: false,
1754             onSelect: function() {
1755                 network = bitcoinjs.bitcoin.networks.nubits;
1756                 setHdCoin(12);
1757             },
1758         },
1759         {
1760             name: "VIA - Viacoin",
1761             segwitAvailable: false,
1762             onSelect: function() {
1763                 network = bitcoinjs.bitcoin.networks.viacoin;
1764                 setHdCoin(14);
1765             },
1766         },
1767         {
1768             name: "VIA - Viacoin Testnet",
1769             segwitAvailable: false,
1770             onSelect: function() {
1771                 network = bitcoinjs.bitcoin.networks.viacointestnet;
1772                 setHdCoin(1);
1773             },
1774         },
1775         {
1776             name: "XMY - Myriadcoin",
1777             segwitAvailable: false,
1778             onSelect: function() {
1779                 network = bitcoinjs.bitcoin.networks.myriadcoin;
1780                 setHdCoin(90);
1781             },
1782         },
1783         {
1784             name: "XRP - Ripple",
1785             segwitAvailable: false,
1786             onSelect: function() {
1787                 network = bitcoinjs.bitcoin.networks.bitcoin;
1788                 setHdCoin(144);
1789             },
1790         },
1791     ]
1792
1793     var clients = [
1794         {
1795             name: "Bitcoin Core",
1796             onSelect: function() {
1797                 DOM.bip32path.val("m/0'/0'");
1798                 DOM.hardenedAddresses.prop('checked', true);
1799             },
1800         },
1801         {
1802             name: "blockchain.info",
1803             onSelect: function() {
1804                 DOM.bip32path.val("m/44'/0'/0'");
1805                 DOM.hardenedAddresses.prop('checked', false);
1806             },
1807         },
1808         {
1809             name: "MultiBit HD",
1810             onSelect: function() {
1811                 DOM.bip32path.val("m/0'/0");
1812                 DOM.hardenedAddresses.prop('checked', false);
1813             },
1814         }
1815     ]
1816
1817     init();
1818
1819 })();