(function() {
- var mnemonic = new Mnemonic("english");
+ // mnemonics is populated as required by getLanguage
+ var mnemonics = { "english": new Mnemonic("english") };
+ var mnemonic = mnemonics["english"];
+ var seed = null
var bip32RootKey = null;
var bip32ExtendedKey = null;
- var network = Bitcoin.networks.bitcoin;
+ var network = bitcoin.networks.bitcoin;
var addressRowTemplate = $("#address-row-template");
var showIndex = true;
var showAddress = true;
+ var showPubKey = true;
var showPrivKey = true;
+ var entropyChangeTimeoutEvent = null;
var phraseChangeTimeoutEvent = null;
+ var rootKeyChangedTimeoutEvent = null;
var DOM = {};
DOM.network = $(".network");
DOM.phraseNetwork = $("#network-phrase");
+ DOM.useEntropy = $(".use-entropy");
+ DOM.entropyContainer = $(".entropy-container");
+ DOM.entropy = $(".entropy");
+ DOM.entropyFiltered = DOM.entropyContainer.find(".filtered");
+ DOM.entropyType = DOM.entropyContainer.find(".type");
+ DOM.entropyStrength = DOM.entropyContainer.find(".strength");
+ DOM.entropyEventCount = DOM.entropyContainer.find(".event-count");
+ DOM.entropyBits = DOM.entropyContainer.find(".bits");
+ DOM.entropyBitsPerEvent = DOM.entropyContainer.find(".bits-per-event");
+ DOM.entropyWordCount = DOM.entropyContainer.find(".word-count");
+ DOM.entropyBinary = DOM.entropyContainer.find(".binary");
+ DOM.entropyMnemonicLength = DOM.entropyContainer.find(".mnemonic-length");
DOM.phrase = $(".phrase");
DOM.passphrase = $(".passphrase");
+ DOM.generateContainer = $(".generate-container");
DOM.generate = $(".generate");
+ DOM.seed = $(".seed");
DOM.rootKey = $(".root-key");
DOM.extendedPrivKey = $(".extended-priv-key");
DOM.extendedPubKey = $(".extended-pub-key");
DOM.bip44coin = $("#bip44 .coin");
DOM.bip44account = $("#bip44 .account");
DOM.bip44change = $("#bip44 .change");
- DOM.strength = $(".strength");
+ DOM.generatedStrength = $(".generate-container .strength");
+ DOM.hardenedAddresses = $(".hardened-addresses");
DOM.addresses = $(".addresses");
DOM.rowsToAdd = $(".rows-to-add");
DOM.more = $(".more");
DOM.tab = $(".derivation-type a");
DOM.indexToggle = $(".index-toggle");
DOM.addressToggle = $(".address-toggle");
+ DOM.publicKeyToggle = $(".public-key-toggle");
DOM.privateKeyToggle = $(".private-key-toggle");
-
- var derivationPath = DOM.bip44path.val();
+ DOM.languages = $(".languages a");
function init() {
// Events
DOM.network.on("change", networkChanged);
+ DOM.useEntropy.on("change", setEntropyVisibility);
+ DOM.entropy.on("input", delayedEntropyChanged);
+ DOM.entropyMnemonicLength.on("change", entropyChanged);
DOM.phrase.on("input", delayedPhraseChanged);
DOM.passphrase.on("input", delayedPhraseChanged);
DOM.generate.on("click", generateClicked);
DOM.more.on("click", showMore);
- DOM.bip32path.on("input", bip32Changed);
- DOM.bip44purpose.on("input", bip44Changed);
- DOM.bip44coin.on("input", bip44Changed);
- DOM.bip44account.on("input", bip44Changed);
- DOM.bip44change.on("input", bip44Changed);
- DOM.tab.on("click", tabClicked);
+ DOM.rootKey.on("input", delayedRootKeyChanged);
+ DOM.bip32path.on("input", calcForDerivationPath);
+ DOM.bip44purpose.on("input", calcForDerivationPath);
+ DOM.bip44coin.on("input", calcForDerivationPath);
+ DOM.bip44account.on("input", calcForDerivationPath);
+ DOM.bip44change.on("input", calcForDerivationPath);
+ DOM.tab.on("shown.bs.tab", calcForDerivationPath);
+ DOM.hardenedAddresses.on("change", calcForDerivationPath);
DOM.indexToggle.on("click", toggleIndexes);
DOM.addressToggle.on("click", toggleAddresses);
+ DOM.publicKeyToggle.on("click", togglePublicKeys);
DOM.privateKeyToggle.on("click", togglePrivateKeys);
+ DOM.languages.on("click", languageChanged);
disableForms();
hidePending();
hideValidationError();
+ populateNetworkSelect();
}
// Event handlers
function networkChanged(e) {
- var n = e.target.value;
- if (n == "bitcoin") {
- network = Bitcoin.networks.bitcoin;
- DOM.bip44coin.val(0);
+ var networkIndex = e.target.value;
+ networks[networkIndex].onSelect();
+ if (seed != null) {
+ phraseChanged();
}
- else if (n == "bitcoin-testnet") {
- network = Bitcoin.networks.testnet;
- DOM.bip44coin.val(1);
+ else {
+ rootKeyChanged();
}
- else if (n == "litecoin") {
- network = Bitcoin.networks.litecoin;
- DOM.bip44coin.val(2);
+ }
+
+ function setEntropyVisibility() {
+ if (isUsingOwnEntropy()) {
+ DOM.entropyContainer.removeClass("hidden");
+ DOM.generateContainer.addClass("hidden");
+ DOM.phrase.prop("readonly", true);
+ DOM.entropy.focus();
+ entropyChanged();
}
- else if (n == "dogecoin") {
- network = Bitcoin.networks.dogecoin;
- var UNOFFICIAL_BIP44_COIN = 9999;
- DOM.bip44coin.val(UNOFFICIAL_BIP44_COIN); // This coin is not in BIP44
+ else {
+ DOM.entropyContainer.addClass("hidden");
+ DOM.generateContainer.removeClass("hidden");
+ DOM.phrase.prop("readonly", false);
+ hidePending();
}
- setBip44DerivationPath();
- delayedPhraseChanged();
}
function delayedPhraseChanged() {
function phraseChanged() {
showPending();
hideValidationError();
+ setMnemonicLanguage();
// Get the mnemonic phrase
var phrase = DOM.phrase.val();
- var passphrase = DOM.passphrase.val();
var errorText = findPhraseErrors(phrase);
if (errorText) {
showValidationError(errorText);
return;
}
- // Get the derivation path
- var errorText = findDerivationPathErrors();
+ // Calculate and display
+ var passphrase = DOM.passphrase.val();
+ calcBip32RootKeyFromSeed(phrase, passphrase);
+ calcForDerivationPath();
+ hidePending();
+ }
+
+ function delayedEntropyChanged() {
+ hideValidationError();
+ showPending();
+ if (entropyChangeTimeoutEvent != null) {
+ clearTimeout(entropyChangeTimeoutEvent);
+ }
+ entropyChangeTimeoutEvent = setTimeout(entropyChanged, 400);
+ }
+
+ function entropyChanged() {
+ // If blank entropy, clear mnemonic, addresses, errors
+ if (DOM.entropy.val().trim().length == 0) {
+ clearDisplay();
+ clearEntropyFeedback();
+ DOM.phrase.val("");
+ showValidationError("Blank entropy");
+ return;
+ }
+ // Get the current phrase to detect changes
+ var phrase = DOM.phrase.val();
+ // Set the phrase from the entropy
+ setMnemonicFromEntropy();
+ // Recalc addresses if the phrase has changed
+ var newPhrase = DOM.phrase.val();
+ if (newPhrase != phrase) {
+ if (newPhrase.length == 0) {
+ clearDisplay();
+ }
+ else {
+ phraseChanged();
+ }
+ }
+ else {
+ hidePending();
+ }
+ }
+
+ function delayedRootKeyChanged() {
+ // Warn if there is an existing mnemonic or passphrase.
+ if (DOM.phrase.val().length > 0 || DOM.passphrase.val().length > 0) {
+ if (!confirm("This will clear existing mnemonic and passphrase")) {
+ DOM.rootKey.val(bip32RootKey);
+ return
+ }
+ }
+ hideValidationError();
+ showPending();
+ // Clear existing mnemonic and passphrase
+ DOM.phrase.val("");
+ DOM.passphrase.val("");
+ seed = null;
+ if (rootKeyChangedTimeoutEvent != null) {
+ clearTimeout(rootKeyChangedTimeoutEvent);
+ }
+ rootKeyChangedTimeoutEvent = setTimeout(rootKeyChanged, 400);
+ }
+
+ function rootKeyChanged() {
+ showPending();
+ hideValidationError();
+ // Validate the root key TODO
+ var rootKeyBase58 = DOM.rootKey.val();
+ var errorText = validateRootKey(rootKeyBase58);
if (errorText) {
showValidationError(errorText);
return;
}
// Calculate and display
- calcBip32Seed(phrase, passphrase, derivationPath);
+ calcBip32RootKeyFromBase58(rootKeyBase58);
+ calcForDerivationPath();
+ hidePending();
+ }
+
+ function calcForDerivationPath() {
+ showPending();
+ hideValidationError();
+ // Get the derivation path
+ var derivationPath = getDerivationPath();
+ var errorText = findDerivationPathErrors(derivationPath);
+ if (errorText) {
+ showValidationError(errorText);
+ return;
+ }
+ calcBip32ExtendedKey(derivationPath);
displayBip32Info();
hidePending();
}
function generateClicked() {
+ if (isUsingOwnEntropy()) {
+ return;
+ }
clearDisplay();
showPending();
setTimeout(function() {
+ setMnemonicLanguage();
var phrase = generateRandomPhrase();
if (!phrase) {
return;
}, 50);
}
- function tabClicked(e) {
- var activePath = $(e.target.getAttribute("href") + " .path");
- derivationPath = activePath.val();
- derivationChanged();
- }
-
- function derivationChanged() {
- delayedPhraseChanged();
- }
-
- function bip32Changed() {
- derivationPath = DOM.bip32path.val();
- derivationChanged();
- }
-
- function bip44Changed() {
- setBip44DerivationPath();
- derivationPath = DOM.bip44path.val();
- derivationChanged();
+ function languageChanged() {
+ setTimeout(function() {
+ setMnemonicLanguage();
+ if (DOM.phrase.val().length > 0) {
+ var newPhrase = convertPhraseToNewLanguage();
+ DOM.phrase.val(newPhrase);
+ phraseChanged();
+ }
+ else {
+ DOM.generate.trigger("click");
+ }
+ }, 50);
}
function toggleIndexes() {
$("td.address span").toggleClass("invisible");
}
+ function togglePublicKeys() {
+ showPubKey = !showPubKey;
+ $("td.pubkey span").toggleClass("invisible");
+ }
+
function togglePrivateKeys() {
showPrivKey = !showPrivKey;
$("td.privkey span").toggleClass("invisible");
showValidationError(errorText);
return;
}
- var numWords = parseInt(DOM.strength.val());
- // Check strength is an integer
- if (isNaN(numWords)) {
- DOM.strength.val("12");
- numWords = 12;
- }
- // Check strength is a multiple of 32, if not round it down
- if (numWords % 3 != 0) {
- numWords = Math.floor(numWords / 3) * 3;
- DOM.strength.val(numWords);
- }
- // Check strength is at least 32
- if (numWords == 0) {
- numWords = 3;
- DOM.strength.val(numWords);
- }
+ var numWords = parseInt(DOM.generatedStrength.val());
var strength = numWords / 3 * 32;
var words = mnemonic.generate(strength);
DOM.phrase.val(words);
return words;
}
- function calcBip32Seed(phrase, passphrase, path) {
- var seed = mnemonic.toSeed(phrase, passphrase);
- bip32RootKey = Bitcoin.HDNode.fromSeedHex(seed, network);
+ function calcBip32RootKeyFromSeed(phrase, passphrase) {
+ seed = mnemonic.toSeed(phrase, passphrase);
+ bip32RootKey = bitcoin.HDNode.fromSeedHex(seed, network);
+ }
+
+ function calcBip32RootKeyFromBase58(rootKeyBase58) {
+ bip32RootKey = bitcoin.HDNode.fromBase58(rootKeyBase58, network);
+ }
+
+ function calcBip32ExtendedKey(path) {
bip32ExtendedKey = bip32RootKey;
// Derive the key from the path
var pathBits = path.split("/");
}
function findPhraseErrors(phrase) {
- // TODO make this right
// Preprocess the words
phrase = mnemonic.normalizeString(phrase);
- var parts = phrase.split(" ");
- var proper = [];
- for (var i=0; i<parts.length; i++) {
- var part = parts[i];
- if (part.length > 0) {
- // TODO check that lowercasing is always valid to do
- proper.push(part.toLowerCase());
+ var words = phraseToWordArray(phrase);
+ // Detect blank phrase
+ if (words.length == 0) {
+ return "Blank mnemonic";
+ }
+ // Check each word
+ for (var i=0; i<words.length; i++) {
+ var word = words[i];
+ var language = getLanguage();
+ if (WORDLISTS[language].indexOf(word) == -1) {
+ console.log("Finding closest match to " + word);
+ var nearestWord = findNearestWord(word);
+ return word + " not in wordlist, did you mean " + nearestWord + "?";
}
}
- // TODO some levenstein on the words
- var properPhrase = proper.join(' ');
// Check the words are valid
+ var properPhrase = wordArrayToPhrase(words);
var isValid = mnemonic.check(properPhrase);
if (!isValid) {
return "Invalid mnemonic";
return false;
}
+ function validateRootKey(rootKeyBase58) {
+ try {
+ bitcoin.HDNode.fromBase58(rootKeyBase58);
+ }
+ catch (e) {
+ return "Invalid root key";
+ }
+ return "";
+ }
+
+ function getDerivationPath() {
+ if (DOM.bip44tab.hasClass("active")) {
+ var purpose = parseIntNoNaN(DOM.bip44purpose.val(), 44);
+ var coin = parseIntNoNaN(DOM.bip44coin.val(), 0);
+ var account = parseIntNoNaN(DOM.bip44account.val(), 0);
+ var change = parseIntNoNaN(DOM.bip44change.val(), 0);
+ var path = "m/";
+ path += purpose + "'/";
+ path += coin + "'/";
+ path += account + "'/";
+ path += change;
+ DOM.bip44path.val(path);
+ var derivationPath = DOM.bip44path.val();
+ console.log("Using derivation path from BIP44 tab: " + derivationPath);
+ return derivationPath;
+ }
+ else if (DOM.bip32tab.hasClass("active")) {
+ var derivationPath = DOM.bip32path.val();
+ console.log("Using derivation path from BIP32 tab: " + derivationPath);
+ return derivationPath;
+ }
+ else {
+ console.log("Unknown derivation path");
+ }
+ }
+
function findDerivationPathErrors(path) {
- // TODO
+ // TODO is not perfect but is better than nothing
+ // Inspired by
+ // https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki#test-vectors
+ // and
+ // https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki#extended-keys
+ var maxDepth = 255; // TODO verify this!!
+ var maxIndexValue = Math.pow(2, 31); // TODO verify this!!
+ if (path[0] != "m") {
+ return "First character must be 'm'";
+ }
+ if (path.length > 1) {
+ if (path[1] != "/") {
+ return "Separator must be '/'";
+ }
+ var indexes = path.split("/");
+ if (indexes.length > maxDepth) {
+ return "Derivation depth is " + indexes.length + ", must be less than " + maxDepth;
+ }
+ for (var depth = 1; depth<indexes.length; depth++) {
+ var index = indexes[depth];
+ var invalidChars = index.replace(/^[0-9]+'?$/g, "")
+ if (invalidChars.length > 0) {
+ return "Invalid characters " + invalidChars + " found at depth " + depth;
+ }
+ var indexValue = parseInt(index.replace("'", ""));
+ if (isNaN(depth)) {
+ return "Invalid number at depth " + depth;
+ }
+ if (indexValue > maxIndexValue) {
+ return "Value of " + indexValue + " at depth " + depth + " must be less than " + maxIndexValue;
+ }
+ }
+ }
return false;
}
function displayBip32Info() {
// Display the key
+ DOM.seed.val(seed);
var rootKey = bip32RootKey.toBase58();
DOM.rootKey.val(rootKey);
var extendedPrivKey = bip32ExtendedKey.toBase58();
function TableRow(index) {
+ var useHardenedAddresses = DOM.hardenedAddresses.prop("checked");
+
function init() {
calculateValues();
}
function calculateValues() {
setTimeout(function() {
- var key = bip32ExtendedKey.derive(index);
+ var key = "";
+ if (useHardenedAddresses) {
+ key = bip32ExtendedKey.deriveHardened(index);
+ }
+ else {
+ key = bip32ExtendedKey.derive(index);
+ }
var address = key.getAddress().toString();
var privkey = key.privKey.toWIF(network);
- addAddressToList(index, address, privkey);
+ var pubkey = key.pubKey.toHex();
+ var indexText = getDerivationPath() + "/" + index;
+ if (useHardenedAddresses) {
+ indexText = indexText + "'";
+ }
+ addAddressToList(indexText, address, pubkey, privkey);
}, 50)
}
DOM.extendedPubKey.val("");
}
- function addAddressToList(index, address, privkey) {
+ function addAddressToList(indexText, address, pubkey, privkey) {
var row = $(addressRowTemplate.html());
// Elements
var indexCell = row.find(".index span");
var addressCell = row.find(".address span");
+ var pubkeyCell = row.find(".pubkey span");
var privkeyCell = row.find(".privkey span");
// Content
- indexCell.text(index);
+ indexCell.text(indexText);
addressCell.text(address);
+ pubkeyCell.text(pubkey);
privkeyCell.text(privkey);
// Visibility
if (!showIndex) {
if (!showAddress) {
addressCell.addClass("invisible");
}
+ if (!showPubKey) {
+ pubkeyCell.addClass("invisible");
+ }
if (!showPrivKey) {
- privkeCell.addClass("invisible");
+ privkeyCell.addClass("invisible");
}
DOM.addresses.append(row);
}
});
}
- function setBip44DerivationPath() {
- var purpose = parseIntNoNaN(DOM.bip44purpose.val(), 44);
- var coin = parseIntNoNaN(DOM.bip44coin.val(), 0);
- var account = parseIntNoNaN(DOM.bip44account.val(), 0);
- var change = parseIntNoNaN(DOM.bip44change.val(), 0);
- var path = "m/";
- path += purpose + "'/";
- path += coin + "'/";
- path += account + "'/";
- path += change;
- DOM.bip44path.val(path);
- }
-
function parseIntNoNaN(val, defaultVal) {
var v = parseInt(val);
if (isNaN(v)) {
.show();
}
+ function findNearestWord(word) {
+ var language = getLanguage();
+ var words = WORDLISTS[language];
+ var minDistance = 99;
+ var closestWord = words[0];
+ for (var i=0; i<words.length; i++) {
+ var comparedTo = words[i];
+ var distance = Levenshtein.get(word, comparedTo);
+ if (distance < minDistance) {
+ closestWord = comparedTo;
+ minDistance = distance;
+ }
+ }
+ return closestWord;
+ }
+
function hidePending() {
DOM.feedback
.text("")
.hide();
}
+ function populateNetworkSelect() {
+ for (var i=0; i<networks.length; i++) {
+ var network = networks[i];
+ var option = $("<option>");
+ option.attr("value", i);
+ option.text(network.name);
+ DOM.phraseNetwork.append(option);
+ }
+ }
+
+ function getLanguage() {
+ var defaultLanguage = "english";
+ // Try to get from existing phrase
+ var language = getLanguageFromPhrase();
+ // Try to get from url if not from phrase
+ if (language.length == 0) {
+ language = getLanguageFromUrl();
+ }
+ // Default to English if no other option
+ if (language.length == 0) {
+ language = defaultLanguage;
+ }
+ return language;
+ }
+
+ function getLanguageFromPhrase(phrase) {
+ // Check if how many words from existing phrase match a language.
+ var language = "";
+ if (!phrase) {
+ phrase = DOM.phrase.val();
+ }
+ if (phrase.length > 0) {
+ var words = phraseToWordArray(phrase);
+ var languageMatches = {};
+ for (l in WORDLISTS) {
+ // Track how many words match in this language
+ languageMatches[l] = 0;
+ for (var i=0; i<words.length; i++) {
+ var wordInLanguage = WORDLISTS[l].indexOf(words[i]) > -1;
+ if (wordInLanguage) {
+ languageMatches[l]++;
+ }
+ }
+ // Find languages with most word matches.
+ // This is made difficult due to commonalities between Chinese
+ // simplified vs traditional.
+ var mostMatches = 0;
+ var mostMatchedLanguages = [];
+ for (var l in languageMatches) {
+ var numMatches = languageMatches[l];
+ if (numMatches > mostMatches) {
+ mostMatches = numMatches;
+ mostMatchedLanguages = [l];
+ }
+ else if (numMatches == mostMatches) {
+ mostMatchedLanguages.push(l);
+ }
+ }
+ }
+ if (mostMatchedLanguages.length > 0) {
+ // Use first language and warn if multiple detected
+ language = mostMatchedLanguages[0];
+ if (mostMatchedLanguages.length > 1) {
+ console.warn("Multiple possible languages");
+ console.warn(mostMatchedLanguages);
+ }
+ }
+ }
+ return language;
+ }
+
+ function getLanguageFromUrl() {
+ for (var language in WORDLISTS) {
+ if (window.location.hash.indexOf(language) > -1) {
+ return language;
+ }
+ }
+ return "";
+ }
+
+ function setMnemonicLanguage() {
+ var language = getLanguage();
+ // Load the bip39 mnemonic generator for this language if required
+ if (!(language in mnemonics)) {
+ mnemonics[language] = new Mnemonic(language);
+ }
+ mnemonic = mnemonics[language];
+ }
+
+ function convertPhraseToNewLanguage() {
+ var oldLanguage = getLanguageFromPhrase();
+ var newLanguage = getLanguageFromUrl();
+ var oldPhrase = DOM.phrase.val();
+ var oldWords = phraseToWordArray(oldPhrase);
+ var newWords = [];
+ for (var i=0; i<oldWords.length; i++) {
+ var oldWord = oldWords[i];
+ var index = WORDLISTS[oldLanguage].indexOf(oldWord);
+ var newWord = WORDLISTS[newLanguage][index];
+ newWords.push(newWord);
+ }
+ newPhrase = wordArrayToPhrase(newWords);
+ return newPhrase;
+ }
+
+ // TODO look at jsbip39 - mnemonic.splitWords
+ function phraseToWordArray(phrase) {
+ var words = phrase.split(/\s/g);
+ var noBlanks = [];
+ for (var i=0; i<words.length; i++) {
+ var word = words[i];
+ if (word.length > 0) {
+ noBlanks.push(word);
+ }
+ }
+ return noBlanks;
+ }
+
+ // TODO look at jsbip39 - mnemonic.joinWords
+ function wordArrayToPhrase(words) {
+ var phrase = words.join(" ");
+ var language = getLanguageFromPhrase(phrase);
+ if (language == "japanese") {
+ phrase = words.join("\u3000");
+ }
+ return phrase;
+ }
+
+ function isUsingOwnEntropy() {
+ return DOM.useEntropy.prop("checked");
+ }
+
+ function setMnemonicFromEntropy() {
+ clearEntropyFeedback();
+ // Get entropy value
+ var entropyStr = DOM.entropy.val();
+ // Work out minimum base for entropy
+ var entropy = Entropy.fromString(entropyStr);
+ if (entropy.binaryStr.length == 0) {
+ return;
+ }
+ // Show entropy details
+ showEntropyFeedback(entropy);
+ // Use entropy hash if not using raw entropy
+ var bits = entropy.binaryStr;
+ var mnemonicLength = DOM.entropyMnemonicLength.val();
+ if (mnemonicLength != "raw") {
+ // Get bits by hashing entropy with SHA256
+ var hash = sjcl.hash.sha256.hash(entropy.cleanStr);
+ var hex = sjcl.codec.hex.fromBits(hash);
+ bits = BigInteger.parse(hex, 16).toString(2);
+ for (var i=0; i<256-bits.length; i++) {
+ bits = "0" + bits;
+ }
+ // Truncate hash to suit number of words
+ mnemonicLength = parseInt(mnemonicLength);
+ var numberOfBits = 32 * mnemonicLength / 3;
+ bits = bits.substring(0, numberOfBits);
+ }
+ // Discard trailing entropy
+ var bitsToUse = Math.floor(bits.length / 32) * 32;
+ var start = bits.length - bitsToUse;
+ var binaryStr = bits.substring(start);
+ // Convert entropy string to numeric array
+ var entropyArr = [];
+ for (var i=0; i<binaryStr.length / 8; i++) {
+ var byteAsBits = binaryStr.substring(i*8, i*8+8);
+ var entropyByte = parseInt(byteAsBits, 2);
+ entropyArr.push(entropyByte)
+ }
+ // Convert entropy array to mnemonic
+ var phrase = mnemonic.toMnemonic(entropyArr);
+ // Set the mnemonic in the UI
+ DOM.phrase.val(phrase);
+ }
+
+ function clearEntropyFeedback() {
+ DOM.entropyStrength.text("...");
+ DOM.entropyType.text("");
+ DOM.entropyWordCount.text("0");
+ DOM.entropyEventCount.text("0");
+ DOM.entropyBitsPerEvent.text("0");
+ DOM.entropyBits.text("0");
+ DOM.entropyFiltered.html(" ");
+ DOM.entropyBinary.html(" ");
+ }
+
+ function showEntropyFeedback(entropy) {
+ var numberOfBits = entropy.binaryStr.length;
+ var strength = "extremely weak";
+ if (numberOfBits >= 64) {
+ strength = "very weak";
+ }
+ if (numberOfBits >= 96) {
+ strength = "weak";
+ }
+ if (numberOfBits >= 128) {
+ strength = "strong";
+ }
+ if (numberOfBits >= 160) {
+ strength = "very strong";
+ }
+ if (numberOfBits >= 192) {
+ strength = "extremely strong";
+ }
+ // If time to crack is less than one day, and password is considered
+ // strong or better based on the number of bits, rename strength to
+ // 'easily cracked'.
+ try {
+ var z = zxcvbn(entropy.base.parts.join(""));
+ var timeToCrack = z.crack_times_seconds.offline_fast_hashing_1e10_per_second;
+ if (timeToCrack < 86400 && entropy.binaryStr.length >= 128) {
+ strength = "easily cracked";
+ if (z.feedback.warning != "") {
+ strength = strength + " - " + z.feedback.warning;
+ };
+ }
+ }
+ catch (e) {
+ strength = "unknown";
+ console.log("Error detecting entropy strength with zxcvbn:");
+ console.log(e);
+ }
+ var entropyTypeStr = getEntropyTypeStr(entropy);
+ var wordCount = Math.floor(numberOfBits / 32) * 3;
+ var bitsPerEvent = Math.log2(entropy.base.asInt).toFixed(2);
+ if (entropy.base.asInt == 52) {
+ bitsPerEvent = bitsPerEvent + " (or less)";
+ }
+ DOM.entropyFiltered.html(entropy.cleanHtml);
+ DOM.entropyType.text(entropyTypeStr);
+ DOM.entropyStrength.text(strength);
+ DOM.entropyEventCount.text(entropy.base.ints.length);
+ DOM.entropyBits.text(numberOfBits);
+ DOM.entropyWordCount.text(wordCount);
+ DOM.entropyBinary.text(entropy.binaryStr);
+ DOM.entropyBitsPerEvent.text(bitsPerEvent);
+ }
+
+ function getEntropyTypeStr(entropy) {
+ var typeStr = entropy.base.str;
+ // Add some detail if these are cards
+ if (entropy.base.asInt == 52) {
+ var cardDetail = []; // array of message strings
+ // Detect duplicates
+ var dupes = [];
+ var dupeTracker = {};
+ for (var i=0; i<entropy.base.parts.length; i++) {
+ var card = entropy.base.parts[i];
+ var cardUpper = card.toUpperCase();
+ if (cardUpper in dupeTracker) {
+ dupes.push(card);
+ }
+ dupeTracker[cardUpper] = true;
+ }
+ if (dupes.length > 0) {
+ var dupeWord = "duplicates";
+ if (dupes.length == 1) {
+ dupeWord = "duplicate";
+ }
+ var msg = dupes.length + " " + dupeWord + ": " + dupes.slice(0,3).join(" ");
+ if (dupes.length > 3) {
+ msg += "...";
+ }
+ cardDetail.push(msg);
+ }
+ // Detect full deck
+ var uniqueCards = [];
+ for (var uniqueCard in dupeTracker) {
+ uniqueCards.push(uniqueCard);
+ }
+ if (uniqueCards.length == 52) {
+ cardDetail.unshift("full deck");
+ }
+ // Detect missing cards
+ var values = "A23456789TJQK";
+ var suits = "CDHS";
+ var missingCards = [];
+ for (var i=0; i<suits.length; i++) {
+ for (var j=0; j<values.length; j++) {
+ var card = values[j] + suits[i];
+ if (!(card in dupeTracker)) {
+ missingCards.push(card);
+ }
+ }
+ }
+ // Display missing cards if six or less, ie clearly going for full deck
+ if (missingCards.length > 0 && missingCards.length <= 6) {
+ var msg = missingCards.length + " missing: " + missingCards.slice(0,3).join(" ");
+ if (missingCards.length > 3) {
+ msg += "...";
+ }
+ cardDetail.push(msg);
+ }
+ // Add card details to typeStr
+ if (cardDetail.length > 0) {
+ typeStr += " (" + cardDetail.join(", ") + ")";
+ }
+ }
+ return typeStr;
+ }
+
+ var networks = [
+ {
+ name: "Bitcoin",
+ onSelect: function() {
+ network = bitcoin.networks.bitcoin;
+ DOM.bip44coin.val(0);
+ },
+ },
+ {
+ name: "Bitcoin Testnet",
+ onSelect: function() {
+ network = bitcoin.networks.testnet;
+ DOM.bip44coin.val(1);
+ },
+ },
+ {
+ name: "Litecoin",
+ onSelect: function() {
+ network = bitcoin.networks.litecoin;
+ DOM.bip44coin.val(2);
+ },
+ },
+ {
+ name: "Dogecoin",
+ onSelect: function() {
+ network = bitcoin.networks.dogecoin;
+ DOM.bip44coin.val(3);
+ },
+ },
+ {
+ name: "ShadowCash",
+ onSelect: function() {
+ network = bitcoin.networks.shadow;
+ DOM.bip44coin.val(35);
+ },
+ },
+ {
+ name: "ShadowCash Testnet",
+ onSelect: function() {
+ network = bitcoin.networks.shadowtn;
+ DOM.bip44coin.val(1);
+ },
+ },
+ {
+ name: "Viacoin",
+ onSelect: function() {
+ network = bitcoin.networks.viacoin;
+ DOM.bip44coin.val(14);
+ },
+ },
+ {
+ name: "Viacoin Testnet",
+ onSelect: function() {
+ network = bitcoin.networks.viacointestnet;
+ DOM.bip44coin.val(1);
+ },
+ },
+ {
+ name: "Jumbucks",
+ onSelect: function() {
+ network = bitcoin.networks.jumbucks;
+ DOM.bip44coin.val(26);
+ },
+ },
+ {
+ name: "CLAM",
+ onSelect: function() {
+ network = bitcoin.networks.clam;
+ DOM.bip44coin.val(23);
+ },
+ },
+ {
+ name: "DASH",
+ onSelect: function() {
+ network = bitcoin.networks.dash;
+ DOM.bip44coin.val(5);
+ },
+ },
+ {
+ name: "Namecoin",
+ onSelect: function() {
+ network = bitcoin.networks.namecoin;
+ DOM.bip44coin.val(7);
+ },
+ },
+ {
+ name: "Peercoin",
+ onSelect: function() {
+ network = bitcoin.networks.peercoin;
+ DOM.bip44coin.val(6);
+ },
+ },
+ ]
+
init();
})();