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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 = 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 = true; | |
17 | ||
18 | var entropyChangeTimeoutEvent = null; | |
19 | var phraseChangeTimeoutEvent = null; | |
20 | var rootKeyChangedTimeoutEvent = null; | |
21 | ||
22 | var DOM = {}; | |
23 | DOM.network = $(".network"); | |
24 | DOM.phraseNetwork = $("#network-phrase"); | |
25 | DOM.useEntropy = $(".use-entropy"); | |
26 | DOM.entropyContainer = $(".entropy-container"); | |
27 | DOM.entropy = $(".entropy"); | |
28 | DOM.entropyFiltered = DOM.entropyContainer.find(".filtered"); | |
29 | DOM.entropyType = DOM.entropyContainer.find(".type"); | |
30 | DOM.entropyStrength = DOM.entropyContainer.find(".strength"); | |
31 | DOM.entropyEventCount = DOM.entropyContainer.find(".event-count"); | |
32 | DOM.entropyBits = DOM.entropyContainer.find(".bits"); | |
33 | DOM.entropyBitsPerEvent = DOM.entropyContainer.find(".bits-per-event"); | |
34 | DOM.entropyWordCount = DOM.entropyContainer.find(".word-count"); | |
35 | DOM.entropyBinary = DOM.entropyContainer.find(".binary"); | |
36 | DOM.entropyMnemonicLength = DOM.entropyContainer.find(".mnemonic-length"); | |
37 | DOM.phrase = $(".phrase"); | |
38 | DOM.passphrase = $(".passphrase"); | |
39 | DOM.generateContainer = $(".generate-container"); | |
40 | DOM.generate = $(".generate"); | |
41 | DOM.seed = $(".seed"); | |
42 | DOM.rootKey = $(".root-key"); | |
43 | DOM.extendedPrivKey = $(".extended-priv-key"); | |
44 | DOM.extendedPubKey = $(".extended-pub-key"); | |
45 | DOM.bip32tab = $("#bip32-tab"); | |
46 | DOM.bip44tab = $("#bip44-tab"); | |
47 | DOM.bip32panel = $("#bip32"); | |
48 | DOM.bip44panel = $("#bip44"); | |
49 | DOM.bip32path = $("#bip32-path"); | |
50 | DOM.bip44path = $("#bip44-path"); | |
51 | DOM.bip44purpose = $("#bip44 .purpose"); | |
52 | DOM.bip44coin = $("#bip44 .coin"); | |
53 | DOM.bip44account = $("#bip44 .account"); | |
54 | DOM.bip44change = $("#bip44 .change"); | |
55 | DOM.generatedStrength = $(".generate-container .strength"); | |
56 | DOM.hardenedAddresses = $(".hardened-addresses"); | |
57 | DOM.addresses = $(".addresses"); | |
58 | DOM.rowsToAdd = $(".rows-to-add"); | |
59 | DOM.more = $(".more"); | |
60 | DOM.feedback = $(".feedback"); | |
61 | DOM.tab = $(".derivation-type a"); | |
62 | DOM.indexToggle = $(".index-toggle"); | |
63 | DOM.addressToggle = $(".address-toggle"); | |
64 | DOM.publicKeyToggle = $(".public-key-toggle"); | |
65 | DOM.privateKeyToggle = $(".private-key-toggle"); | |
66 | DOM.languages = $(".languages a"); | |
67 | DOM.qrContainer = $(".qr-container"); | |
68 | DOM.qrImage = DOM.qrContainer.find(".qr-image"); | |
69 | DOM.qrHint = DOM.qrContainer.find(".qr-hint"); | |
70 | DOM.showQrEls = $("[data-show-qr]"); | |
71 | ||
72 | function init() { | |
73 | // Events | |
74 | DOM.network.on("change", networkChanged); | |
75 | DOM.useEntropy.on("change", setEntropyVisibility); | |
76 | DOM.entropy.on("input", delayedEntropyChanged); | |
77 | DOM.entropyMnemonicLength.on("change", entropyChanged); | |
78 | DOM.phrase.on("input", delayedPhraseChanged); | |
79 | DOM.passphrase.on("input", delayedPhraseChanged); | |
80 | DOM.generate.on("click", generateClicked); | |
81 | DOM.more.on("click", showMore); | |
82 | DOM.rootKey.on("input", delayedRootKeyChanged); | |
83 | DOM.bip32path.on("input", calcForDerivationPath); | |
84 | DOM.bip44purpose.on("input", calcForDerivationPath); | |
85 | DOM.bip44coin.on("input", calcForDerivationPath); | |
86 | DOM.bip44account.on("input", calcForDerivationPath); | |
87 | DOM.bip44change.on("input", calcForDerivationPath); | |
88 | DOM.tab.on("shown.bs.tab", calcForDerivationPath); | |
89 | DOM.hardenedAddresses.on("change", calcForDerivationPath); | |
90 | DOM.indexToggle.on("click", toggleIndexes); | |
91 | DOM.addressToggle.on("click", toggleAddresses); | |
92 | DOM.publicKeyToggle.on("click", togglePublicKeys); | |
93 | DOM.privateKeyToggle.on("click", togglePrivateKeys); | |
94 | DOM.languages.on("click", languageChanged); | |
95 | setQrEvents(DOM.showQrEls); | |
96 | disableForms(); | |
97 | hidePending(); | |
98 | hideValidationError(); | |
99 | populateNetworkSelect(); | |
100 | } | |
101 | ||
102 | // Event handlers | |
103 | ||
104 | function networkChanged(e) { | |
105 | var networkIndex = e.target.value; | |
106 | networks[networkIndex].onSelect(); | |
107 | if (seed != null) { | |
108 | phraseChanged(); | |
109 | } | |
110 | else { | |
111 | rootKeyChanged(); | |
112 | } | |
113 | } | |
114 | ||
115 | function setEntropyVisibility() { | |
116 | if (isUsingOwnEntropy()) { | |
117 | DOM.entropyContainer.removeClass("hidden"); | |
118 | DOM.generateContainer.addClass("hidden"); | |
119 | DOM.phrase.prop("readonly", true); | |
120 | DOM.entropy.focus(); | |
121 | entropyChanged(); | |
122 | } | |
123 | else { | |
124 | DOM.entropyContainer.addClass("hidden"); | |
125 | DOM.generateContainer.removeClass("hidden"); | |
126 | DOM.phrase.prop("readonly", false); | |
127 | hidePending(); | |
128 | } | |
129 | } | |
130 | ||
131 | function delayedPhraseChanged() { | |
132 | hideValidationError(); | |
133 | showPending(); | |
134 | if (phraseChangeTimeoutEvent != null) { | |
135 | clearTimeout(phraseChangeTimeoutEvent); | |
136 | } | |
137 | phraseChangeTimeoutEvent = setTimeout(phraseChanged, 400); | |
138 | } | |
139 | ||
140 | function phraseChanged() { | |
141 | showPending(); | |
142 | hideValidationError(); | |
143 | setMnemonicLanguage(); | |
144 | // Get the mnemonic phrase | |
145 | var phrase = DOM.phrase.val(); | |
146 | var errorText = findPhraseErrors(phrase); | |
147 | if (errorText) { | |
148 | showValidationError(errorText); | |
149 | return; | |
150 | } | |
151 | // Calculate and display | |
152 | var passphrase = DOM.passphrase.val(); | |
153 | calcBip32RootKeyFromSeed(phrase, passphrase); | |
154 | calcForDerivationPath(); | |
155 | hidePending(); | |
156 | } | |
157 | ||
158 | function delayedEntropyChanged() { | |
159 | hideValidationError(); | |
160 | showPending(); | |
161 | if (entropyChangeTimeoutEvent != null) { | |
162 | clearTimeout(entropyChangeTimeoutEvent); | |
163 | } | |
164 | entropyChangeTimeoutEvent = setTimeout(entropyChanged, 400); | |
165 | } | |
166 | ||
167 | function entropyChanged() { | |
168 | // If blank entropy, clear mnemonic, addresses, errors | |
169 | if (DOM.entropy.val().trim().length == 0) { | |
170 | clearDisplay(); | |
171 | clearEntropyFeedback(); | |
172 | DOM.phrase.val(""); | |
173 | showValidationError("Blank entropy"); | |
174 | return; | |
175 | } | |
176 | // Get the current phrase to detect changes | |
177 | var phrase = DOM.phrase.val(); | |
178 | // Set the phrase from the entropy | |
179 | setMnemonicFromEntropy(); | |
180 | // Recalc addresses if the phrase has changed | |
181 | var newPhrase = DOM.phrase.val(); | |
182 | if (newPhrase != phrase) { | |
183 | if (newPhrase.length == 0) { | |
184 | clearDisplay(); | |
185 | } | |
186 | else { | |
187 | phraseChanged(); | |
188 | } | |
189 | } | |
190 | else { | |
191 | hidePending(); | |
192 | } | |
193 | } | |
194 | ||
195 | function delayedRootKeyChanged() { | |
196 | // Warn if there is an existing mnemonic or passphrase. | |
197 | if (DOM.phrase.val().length > 0 || DOM.passphrase.val().length > 0) { | |
198 | if (!confirm("This will clear existing mnemonic and passphrase")) { | |
199 | DOM.rootKey.val(bip32RootKey); | |
200 | return | |
201 | } | |
202 | } | |
203 | hideValidationError(); | |
204 | showPending(); | |
205 | // Clear existing mnemonic and passphrase | |
206 | DOM.phrase.val(""); | |
207 | DOM.passphrase.val(""); | |
208 | seed = null; | |
209 | if (rootKeyChangedTimeoutEvent != null) { | |
210 | clearTimeout(rootKeyChangedTimeoutEvent); | |
211 | } | |
212 | rootKeyChangedTimeoutEvent = setTimeout(rootKeyChanged, 400); | |
213 | } | |
214 | ||
215 | function rootKeyChanged() { | |
216 | showPending(); | |
217 | hideValidationError(); | |
218 | // Validate the root key TODO | |
219 | var rootKeyBase58 = DOM.rootKey.val(); | |
220 | var errorText = validateRootKey(rootKeyBase58); | |
221 | if (errorText) { | |
222 | showValidationError(errorText); | |
223 | return; | |
224 | } | |
225 | // Calculate and display | |
226 | calcBip32RootKeyFromBase58(rootKeyBase58); | |
227 | calcForDerivationPath(); | |
228 | hidePending(); | |
229 | } | |
230 | ||
231 | function calcForDerivationPath() { | |
232 | showPending(); | |
233 | hideValidationError(); | |
234 | // Get the derivation path | |
235 | var derivationPath = getDerivationPath(); | |
236 | var errorText = findDerivationPathErrors(derivationPath); | |
237 | if (errorText) { | |
238 | showValidationError(errorText); | |
239 | return; | |
240 | } | |
241 | calcBip32ExtendedKey(derivationPath); | |
242 | displayBip32Info(); | |
243 | hidePending(); | |
244 | } | |
245 | ||
246 | function generateClicked() { | |
247 | if (isUsingOwnEntropy()) { | |
248 | return; | |
249 | } | |
250 | clearDisplay(); | |
251 | showPending(); | |
252 | setTimeout(function() { | |
253 | setMnemonicLanguage(); | |
254 | var phrase = generateRandomPhrase(); | |
255 | if (!phrase) { | |
256 | return; | |
257 | } | |
258 | phraseChanged(); | |
259 | }, 50); | |
260 | } | |
261 | ||
262 | function languageChanged() { | |
263 | setTimeout(function() { | |
264 | setMnemonicLanguage(); | |
265 | if (DOM.phrase.val().length > 0) { | |
266 | var newPhrase = convertPhraseToNewLanguage(); | |
267 | DOM.phrase.val(newPhrase); | |
268 | phraseChanged(); | |
269 | } | |
270 | else { | |
271 | DOM.generate.trigger("click"); | |
272 | } | |
273 | }, 50); | |
274 | } | |
275 | ||
276 | function toggleIndexes() { | |
277 | showIndex = !showIndex; | |
278 | $("td.index span").toggleClass("invisible"); | |
279 | } | |
280 | ||
281 | function toggleAddresses() { | |
282 | showAddress = !showAddress; | |
283 | $("td.address span").toggleClass("invisible"); | |
284 | } | |
285 | ||
286 | function togglePublicKeys() { | |
287 | showPubKey = !showPubKey; | |
288 | $("td.pubkey span").toggleClass("invisible"); | |
289 | } | |
290 | ||
291 | function togglePrivateKeys() { | |
292 | showPrivKey = !showPrivKey; | |
293 | $("td.privkey span").toggleClass("invisible"); | |
294 | } | |
295 | ||
296 | // Private methods | |
297 | ||
298 | function generateRandomPhrase() { | |
299 | if (!hasStrongRandom()) { | |
300 | var errorText = "This browser does not support strong randomness"; | |
301 | showValidationError(errorText); | |
302 | return; | |
303 | } | |
304 | var numWords = parseInt(DOM.generatedStrength.val()); | |
305 | var strength = numWords / 3 * 32; | |
306 | var words = mnemonic.generate(strength); | |
307 | DOM.phrase.val(words); | |
308 | return words; | |
309 | } | |
310 | ||
311 | function calcBip32RootKeyFromSeed(phrase, passphrase) { | |
312 | seed = mnemonic.toSeed(phrase, passphrase); | |
313 | bip32RootKey = bitcoin.HDNode.fromSeedHex(seed, network); | |
314 | } | |
315 | ||
316 | function calcBip32RootKeyFromBase58(rootKeyBase58) { | |
317 | bip32RootKey = bitcoin.HDNode.fromBase58(rootKeyBase58, network); | |
318 | } | |
319 | ||
320 | function calcBip32ExtendedKey(path) { | |
321 | bip32ExtendedKey = bip32RootKey; | |
322 | // Derive the key from the path | |
323 | var pathBits = path.split("/"); | |
324 | for (var i=0; i<pathBits.length; i++) { | |
325 | var bit = pathBits[i]; | |
326 | var index = parseInt(bit); | |
327 | if (isNaN(index)) { | |
328 | continue; | |
329 | } | |
330 | var hardened = bit[bit.length-1] == "'"; | |
331 | if (hardened) { | |
332 | bip32ExtendedKey = bip32ExtendedKey.deriveHardened(index); | |
333 | } | |
334 | else { | |
335 | bip32ExtendedKey = bip32ExtendedKey.derive(index); | |
336 | } | |
337 | } | |
338 | } | |
339 | ||
340 | function showValidationError(errorText) { | |
341 | DOM.feedback | |
342 | .text(errorText) | |
343 | .show(); | |
344 | } | |
345 | ||
346 | function hideValidationError() { | |
347 | DOM.feedback | |
348 | .text("") | |
349 | .hide(); | |
350 | } | |
351 | ||
352 | function findPhraseErrors(phrase) { | |
353 | // Preprocess the words | |
354 | phrase = mnemonic.normalizeString(phrase); | |
355 | var words = phraseToWordArray(phrase); | |
356 | // Detect blank phrase | |
357 | if (words.length == 0) { | |
358 | return "Blank mnemonic"; | |
359 | } | |
360 | // Check each word | |
361 | for (var i=0; i<words.length; i++) { | |
362 | var word = words[i]; | |
363 | var language = getLanguage(); | |
364 | if (WORDLISTS[language].indexOf(word) == -1) { | |
365 | console.log("Finding closest match to " + word); | |
366 | var nearestWord = findNearestWord(word); | |
367 | return word + " not in wordlist, did you mean " + nearestWord + "?"; | |
368 | } | |
369 | } | |
370 | // Check the words are valid | |
371 | var properPhrase = wordArrayToPhrase(words); | |
372 | var isValid = mnemonic.check(properPhrase); | |
373 | if (!isValid) { | |
374 | return "Invalid mnemonic"; | |
375 | } | |
376 | return false; | |
377 | } | |
378 | ||
379 | function validateRootKey(rootKeyBase58) { | |
380 | try { | |
381 | bitcoin.HDNode.fromBase58(rootKeyBase58); | |
382 | } | |
383 | catch (e) { | |
384 | return "Invalid root key"; | |
385 | } | |
386 | return ""; | |
387 | } | |
388 | ||
389 | function getDerivationPath() { | |
390 | if (DOM.bip44tab.hasClass("active")) { | |
391 | var purpose = parseIntNoNaN(DOM.bip44purpose.val(), 44); | |
392 | var coin = parseIntNoNaN(DOM.bip44coin.val(), 0); | |
393 | var account = parseIntNoNaN(DOM.bip44account.val(), 0); | |
394 | var change = parseIntNoNaN(DOM.bip44change.val(), 0); | |
395 | var path = "m/"; | |
396 | path += purpose + "'/"; | |
397 | path += coin + "'/"; | |
398 | path += account + "'/"; | |
399 | path += change; | |
400 | DOM.bip44path.val(path); | |
401 | var derivationPath = DOM.bip44path.val(); | |
402 | console.log("Using derivation path from BIP44 tab: " + derivationPath); | |
403 | return derivationPath; | |
404 | } | |
405 | else if (DOM.bip32tab.hasClass("active")) { | |
406 | var derivationPath = DOM.bip32path.val(); | |
407 | console.log("Using derivation path from BIP32 tab: " + derivationPath); | |
408 | return derivationPath; | |
409 | } | |
410 | else { | |
411 | console.log("Unknown derivation path"); | |
412 | } | |
413 | } | |
414 | ||
415 | function findDerivationPathErrors(path) { | |
416 | // TODO is not perfect but is better than nothing | |
417 | // Inspired by | |
418 | // https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki#test-vectors | |
419 | // and | |
420 | // https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki#extended-keys | |
421 | var maxDepth = 255; // TODO verify this!! | |
422 | var maxIndexValue = Math.pow(2, 31); // TODO verify this!! | |
423 | if (path[0] != "m") { | |
424 | return "First character must be 'm'"; | |
425 | } | |
426 | if (path.length > 1) { | |
427 | if (path[1] != "/") { | |
428 | return "Separator must be '/'"; | |
429 | } | |
430 | var indexes = path.split("/"); | |
431 | if (indexes.length > maxDepth) { | |
432 | return "Derivation depth is " + indexes.length + ", must be less than " + maxDepth; | |
433 | } | |
434 | for (var depth = 1; depth<indexes.length; depth++) { | |
435 | var index = indexes[depth]; | |
436 | var invalidChars = index.replace(/^[0-9]+'?$/g, "") | |
437 | if (invalidChars.length > 0) { | |
438 | return "Invalid characters " + invalidChars + " found at depth " + depth; | |
439 | } | |
440 | var indexValue = parseInt(index.replace("'", "")); | |
441 | if (isNaN(depth)) { | |
442 | return "Invalid number at depth " + depth; | |
443 | } | |
444 | if (indexValue > maxIndexValue) { | |
445 | return "Value of " + indexValue + " at depth " + depth + " must be less than " + maxIndexValue; | |
446 | } | |
447 | } | |
448 | } | |
449 | return false; | |
450 | } | |
451 | ||
452 | function displayBip32Info() { | |
453 | // Display the key | |
454 | DOM.seed.val(seed); | |
455 | var rootKey = bip32RootKey.toBase58(); | |
456 | DOM.rootKey.val(rootKey); | |
457 | var extendedPrivKey = bip32ExtendedKey.toBase58(); | |
458 | DOM.extendedPrivKey.val(extendedPrivKey); | |
459 | var extendedPubKey = bip32ExtendedKey.toBase58(false); | |
460 | DOM.extendedPubKey.val(extendedPubKey); | |
461 | // Display the addresses and privkeys | |
462 | clearAddressesList(); | |
463 | displayAddresses(0, 20); | |
464 | } | |
465 | ||
466 | function displayAddresses(start, total) { | |
467 | for (var i=0; i<total; i++) { | |
468 | var index = i + start; | |
469 | new TableRow(index); | |
470 | } | |
471 | } | |
472 | ||
473 | function TableRow(index) { | |
474 | ||
475 | var useHardenedAddresses = DOM.hardenedAddresses.prop("checked"); | |
476 | ||
477 | function init() { | |
478 | calculateValues(); | |
479 | } | |
480 | ||
481 | function calculateValues() { | |
482 | setTimeout(function() { | |
483 | var key = ""; | |
484 | if (useHardenedAddresses) { | |
485 | key = bip32ExtendedKey.deriveHardened(index); | |
486 | } | |
487 | else { | |
488 | key = bip32ExtendedKey.derive(index); | |
489 | } | |
490 | var address = key.getAddress().toString(); | |
491 | var privkey = key.privKey.toWIF(network); | |
492 | var pubkey = key.pubKey.toHex(); | |
493 | var indexText = getDerivationPath() + "/" + index; | |
494 | if (useHardenedAddresses) { | |
495 | indexText = indexText + "'"; | |
496 | } | |
497 | addAddressToList(indexText, address, pubkey, privkey); | |
498 | }, 50) | |
499 | } | |
500 | ||
501 | init(); | |
502 | ||
503 | } | |
504 | ||
505 | function showMore() { | |
506 | var start = DOM.addresses.children().length; | |
507 | var rowsToAdd = parseInt(DOM.rowsToAdd.val()); | |
508 | if (isNaN(rowsToAdd)) { | |
509 | rowsToAdd = 20; | |
510 | DOM.rowsToAdd.val("20"); | |
511 | } | |
512 | if (rowsToAdd > 200) { | |
513 | var msg = "Generating " + rowsToAdd + " rows could take a while. "; | |
514 | msg += "Do you want to continue?"; | |
515 | if (!confirm(msg)) { | |
516 | return; | |
517 | } | |
518 | } | |
519 | displayAddresses(start, rowsToAdd); | |
520 | } | |
521 | ||
522 | function clearDisplay() { | |
523 | clearAddressesList(); | |
524 | clearKey(); | |
525 | hideValidationError(); | |
526 | } | |
527 | ||
528 | function clearAddressesList() { | |
529 | DOM.addresses.empty(); | |
530 | } | |
531 | ||
532 | function clearKey() { | |
533 | DOM.rootKey.val(""); | |
534 | DOM.extendedPrivKey.val(""); | |
535 | DOM.extendedPubKey.val(""); | |
536 | } | |
537 | ||
538 | function addAddressToList(indexText, address, pubkey, privkey) { | |
539 | var row = $(addressRowTemplate.html()); | |
540 | // Elements | |
541 | var indexCell = row.find(".index span"); | |
542 | var addressCell = row.find(".address span"); | |
543 | var pubkeyCell = row.find(".pubkey span"); | |
544 | var privkeyCell = row.find(".privkey span"); | |
545 | // Content | |
546 | indexCell.text(indexText); | |
547 | addressCell.text(address); | |
548 | pubkeyCell.text(pubkey); | |
549 | privkeyCell.text(privkey); | |
550 | // Visibility | |
551 | if (!showIndex) { | |
552 | indexCell.addClass("invisible"); | |
553 | } | |
554 | if (!showAddress) { | |
555 | addressCell.addClass("invisible"); | |
556 | } | |
557 | if (!showPubKey) { | |
558 | pubkeyCell.addClass("invisible"); | |
559 | } | |
560 | if (!showPrivKey) { | |
561 | privkeyCell.addClass("invisible"); | |
562 | } | |
563 | DOM.addresses.append(row); | |
564 | var rowShowQrEls = row.find("[data-show-qr]"); | |
565 | setQrEvents(rowShowQrEls); | |
566 | } | |
567 | ||
568 | function hasStrongRandom() { | |
569 | return 'crypto' in window && window['crypto'] !== null; | |
570 | } | |
571 | ||
572 | function disableForms() { | |
573 | $("form").on("submit", function(e) { | |
574 | e.preventDefault(); | |
575 | }); | |
576 | } | |
577 | ||
578 | function parseIntNoNaN(val, defaultVal) { | |
579 | var v = parseInt(val); | |
580 | if (isNaN(v)) { | |
581 | return defaultVal; | |
582 | } | |
583 | return v; | |
584 | } | |
585 | ||
586 | function showPending() { | |
587 | DOM.feedback | |
588 | .text("Calculating...") | |
589 | .show(); | |
590 | } | |
591 | ||
592 | function findNearestWord(word) { | |
593 | var language = getLanguage(); | |
594 | var words = WORDLISTS[language]; | |
595 | var minDistance = 99; | |
596 | var closestWord = words[0]; | |
597 | for (var i=0; i<words.length; i++) { | |
598 | var comparedTo = words[i]; | |
599 | var distance = Levenshtein.get(word, comparedTo); | |
600 | if (distance < minDistance) { | |
601 | closestWord = comparedTo; | |
602 | minDistance = distance; | |
603 | } | |
604 | } | |
605 | return closestWord; | |
606 | } | |
607 | ||
608 | function hidePending() { | |
609 | DOM.feedback | |
610 | .text("") | |
611 | .hide(); | |
612 | } | |
613 | ||
614 | function populateNetworkSelect() { | |
615 | for (var i=0; i<networks.length; i++) { | |
616 | var network = networks[i]; | |
617 | var option = $("<option>"); | |
618 | option.attr("value", i); | |
619 | option.text(network.name); | |
620 | DOM.phraseNetwork.append(option); | |
621 | } | |
622 | } | |
623 | ||
624 | function getLanguage() { | |
625 | var defaultLanguage = "english"; | |
626 | // Try to get from existing phrase | |
627 | var language = getLanguageFromPhrase(); | |
628 | // Try to get from url if not from phrase | |
629 | if (language.length == 0) { | |
630 | language = getLanguageFromUrl(); | |
631 | } | |
632 | // Default to English if no other option | |
633 | if (language.length == 0) { | |
634 | language = defaultLanguage; | |
635 | } | |
636 | return language; | |
637 | } | |
638 | ||
639 | function getLanguageFromPhrase(phrase) { | |
640 | // Check if how many words from existing phrase match a language. | |
641 | var language = ""; | |
642 | if (!phrase) { | |
643 | phrase = DOM.phrase.val(); | |
644 | } | |
645 | if (phrase.length > 0) { | |
646 | var words = phraseToWordArray(phrase); | |
647 | var languageMatches = {}; | |
648 | for (l in WORDLISTS) { | |
649 | // Track how many words match in this language | |
650 | languageMatches[l] = 0; | |
651 | for (var i=0; i<words.length; i++) { | |
652 | var wordInLanguage = WORDLISTS[l].indexOf(words[i]) > -1; | |
653 | if (wordInLanguage) { | |
654 | languageMatches[l]++; | |
655 | } | |
656 | } | |
657 | // Find languages with most word matches. | |
658 | // This is made difficult due to commonalities between Chinese | |
659 | // simplified vs traditional. | |
660 | var mostMatches = 0; | |
661 | var mostMatchedLanguages = []; | |
662 | for (var l in languageMatches) { | |
663 | var numMatches = languageMatches[l]; | |
664 | if (numMatches > mostMatches) { | |
665 | mostMatches = numMatches; | |
666 | mostMatchedLanguages = [l]; | |
667 | } | |
668 | else if (numMatches == mostMatches) { | |
669 | mostMatchedLanguages.push(l); | |
670 | } | |
671 | } | |
672 | } | |
673 | if (mostMatchedLanguages.length > 0) { | |
674 | // Use first language and warn if multiple detected | |
675 | language = mostMatchedLanguages[0]; | |
676 | if (mostMatchedLanguages.length > 1) { | |
677 | console.warn("Multiple possible languages"); | |
678 | console.warn(mostMatchedLanguages); | |
679 | } | |
680 | } | |
681 | } | |
682 | return language; | |
683 | } | |
684 | ||
685 | function getLanguageFromUrl() { | |
686 | for (var language in WORDLISTS) { | |
687 | if (window.location.hash.indexOf(language) > -1) { | |
688 | return language; | |
689 | } | |
690 | } | |
691 | return ""; | |
692 | } | |
693 | ||
694 | function setMnemonicLanguage() { | |
695 | var language = getLanguage(); | |
696 | // Load the bip39 mnemonic generator for this language if required | |
697 | if (!(language in mnemonics)) { | |
698 | mnemonics[language] = new Mnemonic(language); | |
699 | } | |
700 | mnemonic = mnemonics[language]; | |
701 | } | |
702 | ||
703 | function convertPhraseToNewLanguage() { | |
704 | var oldLanguage = getLanguageFromPhrase(); | |
705 | var newLanguage = getLanguageFromUrl(); | |
706 | var oldPhrase = DOM.phrase.val(); | |
707 | var oldWords = phraseToWordArray(oldPhrase); | |
708 | var newWords = []; | |
709 | for (var i=0; i<oldWords.length; i++) { | |
710 | var oldWord = oldWords[i]; | |
711 | var index = WORDLISTS[oldLanguage].indexOf(oldWord); | |
712 | var newWord = WORDLISTS[newLanguage][index]; | |
713 | newWords.push(newWord); | |
714 | } | |
715 | newPhrase = wordArrayToPhrase(newWords); | |
716 | return newPhrase; | |
717 | } | |
718 | ||
719 | // TODO look at jsbip39 - mnemonic.splitWords | |
720 | function phraseToWordArray(phrase) { | |
721 | var words = phrase.split(/\s/g); | |
722 | var noBlanks = []; | |
723 | for (var i=0; i<words.length; i++) { | |
724 | var word = words[i]; | |
725 | if (word.length > 0) { | |
726 | noBlanks.push(word); | |
727 | } | |
728 | } | |
729 | return noBlanks; | |
730 | } | |
731 | ||
732 | // TODO look at jsbip39 - mnemonic.joinWords | |
733 | function wordArrayToPhrase(words) { | |
734 | var phrase = words.join(" "); | |
735 | var language = getLanguageFromPhrase(phrase); | |
736 | if (language == "japanese") { | |
737 | phrase = words.join("\u3000"); | |
738 | } | |
739 | return phrase; | |
740 | } | |
741 | ||
742 | function isUsingOwnEntropy() { | |
743 | return DOM.useEntropy.prop("checked"); | |
744 | } | |
745 | ||
746 | function setMnemonicFromEntropy() { | |
747 | clearEntropyFeedback(); | |
748 | // Get entropy value | |
749 | var entropyStr = DOM.entropy.val(); | |
750 | // Work out minimum base for entropy | |
751 | var entropy = Entropy.fromString(entropyStr); | |
752 | if (entropy.binaryStr.length == 0) { | |
753 | return; | |
754 | } | |
755 | // Show entropy details | |
756 | showEntropyFeedback(entropy); | |
757 | // Use entropy hash if not using raw entropy | |
758 | var bits = entropy.binaryStr; | |
759 | var mnemonicLength = DOM.entropyMnemonicLength.val(); | |
760 | if (mnemonicLength != "raw") { | |
761 | // Get bits by hashing entropy with SHA256 | |
762 | var hash = sjcl.hash.sha256.hash(entropy.cleanStr); | |
763 | var hex = sjcl.codec.hex.fromBits(hash); | |
764 | bits = BigInteger.parse(hex, 16).toString(2); | |
765 | for (var i=0; i<256-bits.length; i++) { | |
766 | bits = "0" + bits; | |
767 | } | |
768 | // Truncate hash to suit number of words | |
769 | mnemonicLength = parseInt(mnemonicLength); | |
770 | var numberOfBits = 32 * mnemonicLength / 3; | |
771 | bits = bits.substring(0, numberOfBits); | |
772 | } | |
773 | // Discard trailing entropy | |
774 | var bitsToUse = Math.floor(bits.length / 32) * 32; | |
775 | var start = bits.length - bitsToUse; | |
776 | var binaryStr = bits.substring(start); | |
777 | // Convert entropy string to numeric array | |
778 | var entropyArr = []; | |
779 | for (var i=0; i<binaryStr.length / 8; i++) { | |
780 | var byteAsBits = binaryStr.substring(i*8, i*8+8); | |
781 | var entropyByte = parseInt(byteAsBits, 2); | |
782 | entropyArr.push(entropyByte) | |
783 | } | |
784 | // Convert entropy array to mnemonic | |
785 | var phrase = mnemonic.toMnemonic(entropyArr); | |
786 | // Set the mnemonic in the UI | |
787 | DOM.phrase.val(phrase); | |
788 | } | |
789 | ||
790 | function clearEntropyFeedback() { | |
791 | DOM.entropyStrength.text("..."); | |
792 | DOM.entropyType.text(""); | |
793 | DOM.entropyWordCount.text("0"); | |
794 | DOM.entropyEventCount.text("0"); | |
795 | DOM.entropyBitsPerEvent.text("0"); | |
796 | DOM.entropyBits.text("0"); | |
797 | DOM.entropyFiltered.html(" "); | |
798 | DOM.entropyBinary.html(" "); | |
799 | } | |
800 | ||
801 | function showEntropyFeedback(entropy) { | |
802 | var numberOfBits = entropy.binaryStr.length; | |
803 | var strength = "extremely weak"; | |
804 | if (numberOfBits >= 64) { | |
805 | strength = "very weak"; | |
806 | } | |
807 | if (numberOfBits >= 96) { | |
808 | strength = "weak"; | |
809 | } | |
810 | if (numberOfBits >= 128) { | |
811 | strength = "strong"; | |
812 | } | |
813 | if (numberOfBits >= 160) { | |
814 | strength = "very strong"; | |
815 | } | |
816 | if (numberOfBits >= 192) { | |
817 | strength = "extremely strong"; | |
818 | } | |
819 | // If time to crack is less than one day, and password is considered | |
820 | // strong or better based on the number of bits, rename strength to | |
821 | // 'easily cracked'. | |
822 | try { | |
823 | var z = zxcvbn(entropy.base.parts.join("")); | |
824 | var timeToCrack = z.crack_times_seconds.offline_fast_hashing_1e10_per_second; | |
825 | if (timeToCrack < 86400 && entropy.binaryStr.length >= 128) { | |
826 | strength = "easily cracked"; | |
827 | if (z.feedback.warning != "") { | |
828 | strength = strength + " - " + z.feedback.warning; | |
829 | }; | |
830 | } | |
831 | } | |
832 | catch (e) { | |
833 | strength = "unknown"; | |
834 | console.log("Error detecting entropy strength with zxcvbn:"); | |
835 | console.log(e); | |
836 | } | |
837 | var entropyTypeStr = getEntropyTypeStr(entropy); | |
838 | var wordCount = Math.floor(numberOfBits / 32) * 3; | |
839 | var bitsPerEvent = entropy.bitsPerEvent.toFixed(2); | |
840 | DOM.entropyFiltered.html(entropy.cleanHtml); | |
841 | DOM.entropyType.text(entropyTypeStr); | |
842 | DOM.entropyStrength.text(strength); | |
843 | DOM.entropyEventCount.text(entropy.base.ints.length); | |
844 | DOM.entropyBits.text(numberOfBits); | |
845 | DOM.entropyWordCount.text(wordCount); | |
846 | DOM.entropyBinary.text(entropy.binaryStr); | |
847 | DOM.entropyBitsPerEvent.text(bitsPerEvent); | |
848 | } | |
849 | ||
850 | function getEntropyTypeStr(entropy) { | |
851 | var typeStr = entropy.base.str; | |
852 | // Add some detail if these are cards | |
853 | if (entropy.base.asInt == 52) { | |
854 | var cardDetail = []; // array of message strings | |
855 | // Detect duplicates | |
856 | var dupes = []; | |
857 | var dupeTracker = {}; | |
858 | for (var i=0; i<entropy.base.parts.length; i++) { | |
859 | var card = entropy.base.parts[i]; | |
860 | var cardUpper = card.toUpperCase(); | |
861 | if (cardUpper in dupeTracker) { | |
862 | dupes.push(card); | |
863 | } | |
864 | dupeTracker[cardUpper] = true; | |
865 | } | |
866 | if (dupes.length > 0) { | |
867 | var dupeWord = "duplicates"; | |
868 | if (dupes.length == 1) { | |
869 | dupeWord = "duplicate"; | |
870 | } | |
871 | var msg = dupes.length + " " + dupeWord + ": " + dupes.slice(0,3).join(" "); | |
872 | if (dupes.length > 3) { | |
873 | msg += "..."; | |
874 | } | |
875 | cardDetail.push(msg); | |
876 | } | |
877 | // Detect full deck | |
878 | var uniqueCards = []; | |
879 | for (var uniqueCard in dupeTracker) { | |
880 | uniqueCards.push(uniqueCard); | |
881 | } | |
882 | if (uniqueCards.length == 52) { | |
883 | cardDetail.unshift("full deck"); | |
884 | } | |
885 | // Detect missing cards | |
886 | var values = "A23456789TJQK"; | |
887 | var suits = "CDHS"; | |
888 | var missingCards = []; | |
889 | for (var i=0; i<suits.length; i++) { | |
890 | for (var j=0; j<values.length; j++) { | |
891 | var card = values[j] + suits[i]; | |
892 | if (!(card in dupeTracker)) { | |
893 | missingCards.push(card); | |
894 | } | |
895 | } | |
896 | } | |
897 | // Display missing cards if six or less, ie clearly going for full deck | |
898 | if (missingCards.length > 0 && missingCards.length <= 6) { | |
899 | var msg = missingCards.length + " missing: " + missingCards.slice(0,3).join(" "); | |
900 | if (missingCards.length > 3) { | |
901 | msg += "..."; | |
902 | } | |
903 | cardDetail.push(msg); | |
904 | } | |
905 | // Add card details to typeStr | |
906 | if (cardDetail.length > 0) { | |
907 | typeStr += " (" + cardDetail.join(", ") + ")"; | |
908 | } | |
909 | } | |
910 | return typeStr; | |
911 | } | |
912 | ||
913 | function setQrEvents(els) { | |
914 | els.on("mouseenter", createQr); | |
915 | els.on("mouseleave", destroyQr); | |
916 | els.on("click", toggleQr); | |
917 | } | |
918 | ||
919 | function createQr(e) { | |
920 | var content = e.target.textContent || e.target.value; | |
921 | if (content) { | |
922 | var size = 130; | |
923 | DOM.qrImage.qrcode({width: size, height: size, text: content}); | |
924 | if (!showQr) { | |
925 | DOM.qrImage.addClass("hidden"); | |
926 | } | |
927 | DOM.qrContainer.removeClass("hidden"); | |
928 | } | |
929 | } | |
930 | ||
931 | function destroyQr() { | |
932 | DOM.qrImage.text(""); | |
933 | DOM.qrContainer.addClass("hidden"); | |
934 | } | |
935 | ||
936 | function toggleQr() { | |
937 | showQr = !showQr; | |
938 | DOM.qrImage.toggleClass("hidden"); | |
939 | DOM.qrHint.toggleClass("hidden"); | |
940 | } | |
941 | ||
942 | var networks = [ | |
943 | { | |
944 | name: "Bitcoin", | |
945 | onSelect: function() { | |
946 | network = bitcoin.networks.bitcoin; | |
947 | DOM.bip44coin.val(0); | |
948 | }, | |
949 | }, | |
950 | { | |
951 | name: "Bitcoin Testnet", | |
952 | onSelect: function() { | |
953 | network = bitcoin.networks.testnet; | |
954 | DOM.bip44coin.val(1); | |
955 | }, | |
956 | }, | |
957 | { | |
958 | name: "Litecoin", | |
959 | onSelect: function() { | |
960 | network = bitcoin.networks.litecoin; | |
961 | DOM.bip44coin.val(2); | |
962 | }, | |
963 | }, | |
964 | { | |
965 | name: "Dogecoin", | |
966 | onSelect: function() { | |
967 | network = bitcoin.networks.dogecoin; | |
968 | DOM.bip44coin.val(3); | |
969 | }, | |
970 | }, | |
971 | { | |
972 | name: "ShadowCash", | |
973 | onSelect: function() { | |
974 | network = bitcoin.networks.shadow; | |
975 | DOM.bip44coin.val(35); | |
976 | }, | |
977 | }, | |
978 | { | |
979 | name: "ShadowCash Testnet", | |
980 | onSelect: function() { | |
981 | network = bitcoin.networks.shadowtn; | |
982 | DOM.bip44coin.val(1); | |
983 | }, | |
984 | }, | |
985 | { | |
986 | name: "Viacoin", | |
987 | onSelect: function() { | |
988 | network = bitcoin.networks.viacoin; | |
989 | DOM.bip44coin.val(14); | |
990 | }, | |
991 | }, | |
992 | { | |
993 | name: "Viacoin Testnet", | |
994 | onSelect: function() { | |
995 | network = bitcoin.networks.viacointestnet; | |
996 | DOM.bip44coin.val(1); | |
997 | }, | |
998 | }, | |
999 | { | |
1000 | name: "Jumbucks", | |
1001 | onSelect: function() { | |
1002 | network = bitcoin.networks.jumbucks; | |
1003 | DOM.bip44coin.val(26); | |
1004 | }, | |
1005 | }, | |
1006 | { | |
1007 | name: "CLAM", | |
1008 | onSelect: function() { | |
1009 | network = bitcoin.networks.clam; | |
1010 | DOM.bip44coin.val(23); | |
1011 | }, | |
1012 | }, | |
1013 | { | |
1014 | name: "DASH", | |
1015 | onSelect: function() { | |
1016 | network = bitcoin.networks.dash; | |
1017 | DOM.bip44coin.val(5); | |
1018 | }, | |
1019 | }, | |
1020 | { | |
1021 | name: "Namecoin", | |
1022 | onSelect: function() { | |
1023 | network = bitcoin.networks.namecoin; | |
1024 | DOM.bip44coin.val(7); | |
1025 | }, | |
1026 | }, | |
1027 | { | |
1028 | name: "Peercoin", | |
1029 | onSelect: function() { | |
1030 | network = bitcoin.networks.peercoin; | |
1031 | DOM.bip44coin.val(6); | |
1032 | }, | |
1033 | }, | |
1034 | ] | |
1035 | ||
1036 | init(); | |
1037 | ||
1038 | })(); |