+ 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() {
+ hideEntropyFeedback();
+ // 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 binaryStr = bits.substring(0, bitsToUse);
+ // 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 hideEntropyFeedback() {
+ DOM.entropyFeedback.addClass("hidden");
+ DOM.entropyFiltered.text("");
+ DOM.entropyType.text("");
+ DOM.entropyStrength.text("");
+ DOM.entropyEventCount.text("");
+ DOM.entropyBits.text("");
+ DOM.entropyBitsPerEvent.text("");
+ }
+
+ function showEntropyFeedback(entropy) {
+ var strength = "extremely weak";
+ if (entropy.binaryStr.length >= 64) {
+ strength = "very weak";
+ }
+ if (entropy.binaryStr.length >= 96) {
+ strength = "weak";
+ }
+ if (entropy.binaryStr.length >= 128) {
+ strength = "strong";
+ }
+ if (entropy.binaryStr.length >= 160) {
+ strength = "very strong";
+ }
+ if (entropy.binaryStr.length >= 192) {
+ strength = "extremely strong";
+ }
+ var bitsStr = entropy.binaryStr.length;
+ if (entropy.base.asInt != 2) {
+ bitsStr += " (" + entropy.binaryStr + ")";
+ }
+ DOM.entropyFiltered.text(entropy.cleanStr);
+ DOM.entropyType.text(entropy.base.str);
+ DOM.entropyStrength.text(strength);
+ DOM.entropyEventCount.text(entropy.base.ints.length);
+ DOM.entropyBits.text(bitsStr);
+ DOM.entropyBitsPerEvent.text(Math.log2(entropy.base.asInt).toFixed(2));
+ DOM.entropyFeedback.removeClass("hidden");
+ }
+
+ 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);
+ },
+ },
+ ]
+