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