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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 | ||
17 | var entropyChangeTimeoutEvent = null; | |
18 | var phraseChangeTimeoutEvent = null; | |
19 | var rootKeyChangedTimeoutEvent = null; | |
20 | ||
21 | var DOM = {}; | |
22 | DOM.network = $(".network"); | |
23 | DOM.phraseNetwork = $("#network-phrase"); | |
24 | DOM.useEntropy = $(".use-entropy"); | |
25 | DOM.entropyContainer = $(".entropy-container"); | |
26 | DOM.entropy = $(".entropy"); | |
27 | DOM.entropyFeedback = $(".entropy-feedback"); | |
28 | DOM.entropyFiltered = DOM.entropyFeedback.find(".filtered"); | |
29 | DOM.entropyType = DOM.entropyFeedback.find(".type"); | |
30 | DOM.entropyStrength = DOM.entropyFeedback.find(".strength"); | |
31 | DOM.entropyEventCount = DOM.entropyFeedback.find(".event-count"); | |
32 | DOM.entropyBits = DOM.entropyFeedback.find(".bits"); | |
33 | DOM.entropyBitsPerEvent = DOM.entropyFeedback.find(".bits-per-event"); | |
34 | DOM.entropyMnemonicLength = DOM.entropyFeedback.find(".mnemonic-length"); | |
35 | DOM.phrase = $(".phrase"); | |
36 | DOM.passphrase = $(".passphrase"); | |
37 | DOM.generateContainer = $(".generate-container"); | |
38 | DOM.generate = $(".generate"); | |
39 | DOM.seed = $(".seed"); | |
40 | DOM.rootKey = $(".root-key"); | |
41 | DOM.extendedPrivKey = $(".extended-priv-key"); | |
42 | DOM.extendedPubKey = $(".extended-pub-key"); | |
43 | DOM.bip32tab = $("#bip32-tab"); | |
44 | DOM.bip44tab = $("#bip44-tab"); | |
45 | DOM.bip32panel = $("#bip32"); | |
46 | DOM.bip44panel = $("#bip44"); | |
47 | DOM.bip32path = $("#bip32-path"); | |
48 | DOM.bip44path = $("#bip44-path"); | |
49 | DOM.bip44purpose = $("#bip44 .purpose"); | |
50 | DOM.bip44coin = $("#bip44 .coin"); | |
51 | DOM.bip44account = $("#bip44 .account"); | |
52 | DOM.bip44change = $("#bip44 .change"); | |
53 | DOM.generatedStrength = $(".generate-container .strength"); | |
54 | DOM.hardenedAddresses = $(".hardened-addresses"); | |
55 | DOM.addresses = $(".addresses"); | |
56 | DOM.rowsToAdd = $(".rows-to-add"); | |
57 | DOM.more = $(".more"); | |
58 | DOM.feedback = $(".feedback"); | |
59 | DOM.tab = $(".derivation-type a"); | |
60 | DOM.indexToggle = $(".index-toggle"); | |
61 | DOM.addressToggle = $(".address-toggle"); | |
62 | DOM.publicKeyToggle = $(".public-key-toggle"); | |
63 | DOM.privateKeyToggle = $(".private-key-toggle"); | |
64 | DOM.languages = $(".languages a"); | |
65 | ||
66 | function init() { | |
67 | // Events | |
68 | DOM.network.on("change", networkChanged); | |
69 | DOM.useEntropy.on("change", setEntropyVisibility); | |
70 | DOM.entropy.on("input", delayedEntropyChanged); | |
71 | DOM.entropyMnemonicLength.on("change", entropyChanged); | |
72 | DOM.phrase.on("input", delayedPhraseChanged); | |
73 | DOM.passphrase.on("input", delayedPhraseChanged); | |
74 | DOM.generate.on("click", generateClicked); | |
75 | DOM.more.on("click", showMore); | |
76 | DOM.rootKey.on("input", delayedRootKeyChanged); | |
77 | DOM.bip32path.on("input", calcForDerivationPath); | |
78 | DOM.bip44purpose.on("input", calcForDerivationPath); | |
79 | DOM.bip44coin.on("input", calcForDerivationPath); | |
80 | DOM.bip44account.on("input", calcForDerivationPath); | |
81 | DOM.bip44change.on("input", calcForDerivationPath); | |
82 | DOM.tab.on("shown.bs.tab", calcForDerivationPath); | |
83 | DOM.hardenedAddresses.on("change", calcForDerivationPath); | |
84 | DOM.indexToggle.on("click", toggleIndexes); | |
85 | DOM.addressToggle.on("click", toggleAddresses); | |
86 | DOM.publicKeyToggle.on("click", togglePublicKeys); | |
87 | DOM.privateKeyToggle.on("click", togglePrivateKeys); | |
88 | DOM.languages.on("click", languageChanged); | |
89 | disableForms(); | |
90 | hidePending(); | |
91 | hideValidationError(); | |
92 | populateNetworkSelect(); | |
93 | } | |
94 | ||
95 | // Event handlers | |
96 | ||
97 | function networkChanged(e) { | |
98 | var networkIndex = e.target.value; | |
99 | networks[networkIndex].onSelect(); | |
100 | if (seed != null) { | |
101 | phraseChanged(); | |
102 | } | |
103 | else { | |
104 | rootKeyChanged(); | |
105 | } | |
106 | } | |
107 | ||
108 | function setEntropyVisibility() { | |
109 | if (isUsingOwnEntropy()) { | |
110 | DOM.entropyContainer.removeClass("hidden"); | |
111 | DOM.generateContainer.addClass("hidden"); | |
112 | DOM.phrase.prop("readonly", true); | |
113 | DOM.entropy.focus(); | |
114 | entropyChanged(); | |
115 | } | |
116 | else { | |
117 | DOM.entropyContainer.addClass("hidden"); | |
118 | DOM.generateContainer.removeClass("hidden"); | |
119 | DOM.phrase.prop("readonly", false); | |
120 | hidePending(); | |
121 | } | |
122 | } | |
123 | ||
124 | function delayedPhraseChanged() { | |
125 | hideValidationError(); | |
126 | showPending(); | |
127 | if (phraseChangeTimeoutEvent != null) { | |
128 | clearTimeout(phraseChangeTimeoutEvent); | |
129 | } | |
130 | phraseChangeTimeoutEvent = setTimeout(phraseChanged, 400); | |
131 | } | |
132 | ||
133 | function phraseChanged() { | |
134 | showPending(); | |
135 | hideValidationError(); | |
136 | setMnemonicLanguage(); | |
137 | // Get the mnemonic phrase | |
138 | var phrase = DOM.phrase.val(); | |
139 | var errorText = findPhraseErrors(phrase); | |
140 | if (errorText) { | |
141 | showValidationError(errorText); | |
142 | return; | |
143 | } | |
144 | // Calculate and display | |
145 | var passphrase = DOM.passphrase.val(); | |
146 | calcBip32RootKeyFromSeed(phrase, passphrase); | |
147 | calcForDerivationPath(); | |
148 | hidePending(); | |
149 | } | |
150 | ||
151 | function delayedEntropyChanged() { | |
152 | hideValidationError(); | |
153 | showPending(); | |
154 | if (entropyChangeTimeoutEvent != null) { | |
155 | clearTimeout(entropyChangeTimeoutEvent); | |
156 | } | |
157 | entropyChangeTimeoutEvent = setTimeout(entropyChanged, 400); | |
158 | } | |
159 | ||
160 | function entropyChanged() { | |
161 | // If blank entropy, clear mnemonic, addresses, errors | |
162 | if (DOM.entropy.val().trim().length == 0) { | |
163 | clearDisplay(); | |
164 | hideEntropyFeedback(); | |
165 | DOM.phrase.val(""); | |
166 | showValidationError("Blank entropy"); | |
167 | return; | |
168 | } | |
169 | // Get the current phrase to detect changes | |
170 | var phrase = DOM.phrase.val(); | |
171 | // Set the phrase from the entropy | |
172 | setMnemonicFromEntropy(); | |
173 | // Recalc addresses if the phrase has changed | |
174 | var newPhrase = DOM.phrase.val(); | |
175 | if (newPhrase != phrase) { | |
176 | if (newPhrase.length == 0) { | |
177 | clearDisplay(); | |
178 | } | |
179 | else { | |
180 | phraseChanged(); | |
181 | } | |
182 | } | |
183 | else { | |
184 | hidePending(); | |
185 | } | |
186 | } | |
187 | ||
188 | function delayedRootKeyChanged() { | |
189 | // Warn if there is an existing mnemonic or passphrase. | |
190 | if (DOM.phrase.val().length > 0 || DOM.passphrase.val().length > 0) { | |
191 | if (!confirm("This will clear existing mnemonic and passphrase")) { | |
192 | DOM.rootKey.val(bip32RootKey); | |
193 | return | |
194 | } | |
195 | } | |
196 | hideValidationError(); | |
197 | showPending(); | |
198 | // Clear existing mnemonic and passphrase | |
199 | DOM.phrase.val(""); | |
200 | DOM.passphrase.val(""); | |
201 | seed = null; | |
202 | if (rootKeyChangedTimeoutEvent != null) { | |
203 | clearTimeout(rootKeyChangedTimeoutEvent); | |
204 | } | |
205 | rootKeyChangedTimeoutEvent = setTimeout(rootKeyChanged, 400); | |
206 | } | |
207 | ||
208 | function rootKeyChanged() { | |
209 | showPending(); | |
210 | hideValidationError(); | |
211 | // Validate the root key TODO | |
212 | var rootKeyBase58 = DOM.rootKey.val(); | |
213 | var errorText = validateRootKey(rootKeyBase58); | |
214 | if (errorText) { | |
215 | showValidationError(errorText); | |
216 | return; | |
217 | } | |
218 | // Calculate and display | |
219 | calcBip32RootKeyFromBase58(rootKeyBase58); | |
220 | calcForDerivationPath(); | |
221 | hidePending(); | |
222 | } | |
223 | ||
224 | function calcForDerivationPath() { | |
225 | showPending(); | |
226 | hideValidationError(); | |
227 | // Get the derivation path | |
228 | var derivationPath = getDerivationPath(); | |
229 | var errorText = findDerivationPathErrors(derivationPath); | |
230 | if (errorText) { | |
231 | showValidationError(errorText); | |
232 | return; | |
233 | } | |
234 | calcBip32ExtendedKey(derivationPath); | |
235 | displayBip32Info(); | |
236 | hidePending(); | |
237 | } | |
238 | ||
239 | function generateClicked() { | |
240 | if (isUsingOwnEntropy()) { | |
241 | return; | |
242 | } | |
243 | clearDisplay(); | |
244 | showPending(); | |
245 | setTimeout(function() { | |
246 | setMnemonicLanguage(); | |
247 | var phrase = generateRandomPhrase(); | |
248 | if (!phrase) { | |
249 | return; | |
250 | } | |
251 | phraseChanged(); | |
252 | }, 50); | |
253 | } | |
254 | ||
255 | function languageChanged() { | |
256 | setTimeout(function() { | |
257 | setMnemonicLanguage(); | |
258 | if (DOM.phrase.val().length > 0) { | |
259 | var newPhrase = convertPhraseToNewLanguage(); | |
260 | DOM.phrase.val(newPhrase); | |
261 | phraseChanged(); | |
262 | } | |
263 | else { | |
264 | DOM.generate.trigger("click"); | |
265 | } | |
266 | }, 50); | |
267 | } | |
268 | ||
269 | function toggleIndexes() { | |
270 | showIndex = !showIndex; | |
271 | $("td.index span").toggleClass("invisible"); | |
272 | } | |
273 | ||
274 | function toggleAddresses() { | |
275 | showAddress = !showAddress; | |
276 | $("td.address span").toggleClass("invisible"); | |
277 | } | |
278 | ||
279 | function togglePublicKeys() { | |
280 | showPubKey = !showPubKey; | |
281 | $("td.pubkey span").toggleClass("invisible"); | |
282 | } | |
283 | ||
284 | function togglePrivateKeys() { | |
285 | showPrivKey = !showPrivKey; | |
286 | $("td.privkey span").toggleClass("invisible"); | |
287 | } | |
288 | ||
289 | // Private methods | |
290 | ||
291 | function generateRandomPhrase() { | |
292 | if (!hasStrongRandom()) { | |
293 | var errorText = "This browser does not support strong randomness"; | |
294 | showValidationError(errorText); | |
295 | return; | |
296 | } | |
297 | var numWords = parseInt(DOM.generatedStrength.val()); | |
298 | var strength = numWords / 3 * 32; | |
299 | var words = mnemonic.generate(strength); | |
300 | DOM.phrase.val(words); | |
301 | return words; | |
302 | } | |
303 | ||
304 | function calcBip32RootKeyFromSeed(phrase, passphrase) { | |
305 | seed = mnemonic.toSeed(phrase, passphrase); | |
306 | bip32RootKey = bitcoin.HDNode.fromSeedHex(seed, network); | |
307 | } | |
308 | ||
309 | function calcBip32RootKeyFromBase58(rootKeyBase58) { | |
310 | bip32RootKey = bitcoin.HDNode.fromBase58(rootKeyBase58, network); | |
311 | } | |
312 | ||
313 | function calcBip32ExtendedKey(path) { | |
314 | bip32ExtendedKey = bip32RootKey; | |
315 | // Derive the key from the path | |
316 | var pathBits = path.split("/"); | |
317 | for (var i=0; i<pathBits.length; i++) { | |
318 | var bit = pathBits[i]; | |
319 | var index = parseInt(bit); | |
320 | if (isNaN(index)) { | |
321 | continue; | |
322 | } | |
323 | var hardened = bit[bit.length-1] == "'"; | |
324 | if (hardened) { | |
325 | bip32ExtendedKey = bip32ExtendedKey.deriveHardened(index); | |
326 | } | |
327 | else { | |
328 | bip32ExtendedKey = bip32ExtendedKey.derive(index); | |
329 | } | |
330 | } | |
331 | } | |
332 | ||
333 | function showValidationError(errorText) { | |
334 | DOM.feedback | |
335 | .text(errorText) | |
336 | .show(); | |
337 | } | |
338 | ||
339 | function hideValidationError() { | |
340 | DOM.feedback | |
341 | .text("") | |
342 | .hide(); | |
343 | } | |
344 | ||
345 | function findPhraseErrors(phrase) { | |
346 | // Preprocess the words | |
347 | phrase = mnemonic.normalizeString(phrase); | |
348 | var words = phraseToWordArray(phrase); | |
349 | // Detect blank phrase | |
350 | if (words.length == 0) { | |
351 | return "Blank mnemonic"; | |
352 | } | |
353 | // Check each word | |
354 | for (var i=0; i<words.length; i++) { | |
355 | var word = words[i]; | |
356 | var language = getLanguage(); | |
357 | if (WORDLISTS[language].indexOf(word) == -1) { | |
358 | console.log("Finding closest match to " + word); | |
359 | var nearestWord = findNearestWord(word); | |
360 | return word + " not in wordlist, did you mean " + nearestWord + "?"; | |
361 | } | |
362 | } | |
363 | // Check the words are valid | |
364 | var properPhrase = wordArrayToPhrase(words); | |
365 | var isValid = mnemonic.check(properPhrase); | |
366 | if (!isValid) { | |
367 | return "Invalid mnemonic"; | |
368 | } | |
369 | return false; | |
370 | } | |
371 | ||
372 | function validateRootKey(rootKeyBase58) { | |
373 | try { | |
374 | bitcoin.HDNode.fromBase58(rootKeyBase58); | |
375 | } | |
376 | catch (e) { | |
377 | return "Invalid root key"; | |
378 | } | |
379 | return ""; | |
380 | } | |
381 | ||
382 | function getDerivationPath() { | |
383 | if (DOM.bip44tab.hasClass("active")) { | |
384 | var purpose = parseIntNoNaN(DOM.bip44purpose.val(), 44); | |
385 | var coin = parseIntNoNaN(DOM.bip44coin.val(), 0); | |
386 | var account = parseIntNoNaN(DOM.bip44account.val(), 0); | |
387 | var change = parseIntNoNaN(DOM.bip44change.val(), 0); | |
388 | var path = "m/"; | |
389 | path += purpose + "'/"; | |
390 | path += coin + "'/"; | |
391 | path += account + "'/"; | |
392 | path += change; | |
393 | DOM.bip44path.val(path); | |
394 | var derivationPath = DOM.bip44path.val(); | |
395 | console.log("Using derivation path from BIP44 tab: " + derivationPath); | |
396 | return derivationPath; | |
397 | } | |
398 | else if (DOM.bip32tab.hasClass("active")) { | |
399 | var derivationPath = DOM.bip32path.val(); | |
400 | console.log("Using derivation path from BIP32 tab: " + derivationPath); | |
401 | return derivationPath; | |
402 | } | |
403 | else { | |
404 | console.log("Unknown derivation path"); | |
405 | } | |
406 | } | |
407 | ||
408 | function findDerivationPathErrors(path) { | |
409 | // TODO is not perfect but is better than nothing | |
410 | // Inspired by | |
411 | // https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki#test-vectors | |
412 | // and | |
413 | // https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki#extended-keys | |
414 | var maxDepth = 255; // TODO verify this!! | |
415 | var maxIndexValue = Math.pow(2, 31); // TODO verify this!! | |
416 | if (path[0] != "m") { | |
417 | return "First character must be 'm'"; | |
418 | } | |
419 | if (path.length > 1) { | |
420 | if (path[1] != "/") { | |
421 | return "Separator must be '/'"; | |
422 | } | |
423 | var indexes = path.split("/"); | |
424 | if (indexes.length > maxDepth) { | |
425 | return "Derivation depth is " + indexes.length + ", must be less than " + maxDepth; | |
426 | } | |
427 | for (var depth = 1; depth<indexes.length; depth++) { | |
428 | var index = indexes[depth]; | |
429 | var invalidChars = index.replace(/^[0-9]+'?$/g, "") | |
430 | if (invalidChars.length > 0) { | |
431 | return "Invalid characters " + invalidChars + " found at depth " + depth; | |
432 | } | |
433 | var indexValue = parseInt(index.replace("'", "")); | |
434 | if (isNaN(depth)) { | |
435 | return "Invalid number at depth " + depth; | |
436 | } | |
437 | if (indexValue > maxIndexValue) { | |
438 | return "Value of " + indexValue + " at depth " + depth + " must be less than " + maxIndexValue; | |
439 | } | |
440 | } | |
441 | } | |
442 | return false; | |
443 | } | |
444 | ||
445 | function displayBip32Info() { | |
446 | // Display the key | |
447 | DOM.seed.val(seed); | |
448 | var rootKey = bip32RootKey.toBase58(); | |
449 | DOM.rootKey.val(rootKey); | |
450 | var extendedPrivKey = bip32ExtendedKey.toBase58(); | |
451 | DOM.extendedPrivKey.val(extendedPrivKey); | |
452 | var extendedPubKey = bip32ExtendedKey.toBase58(false); | |
453 | DOM.extendedPubKey.val(extendedPubKey); | |
454 | // Display the addresses and privkeys | |
455 | clearAddressesList(); | |
456 | displayAddresses(0, 20); | |
457 | } | |
458 | ||
459 | function displayAddresses(start, total) { | |
460 | for (var i=0; i<total; i++) { | |
461 | var index = i + start; | |
462 | new TableRow(index); | |
463 | } | |
464 | } | |
465 | ||
466 | function TableRow(index) { | |
467 | ||
468 | var useHardenedAddresses = DOM.hardenedAddresses.prop("checked"); | |
469 | ||
470 | function init() { | |
471 | calculateValues(); | |
472 | } | |
473 | ||
474 | function calculateValues() { | |
475 | setTimeout(function() { | |
476 | var key = ""; | |
477 | if (useHardenedAddresses) { | |
478 | key = bip32ExtendedKey.deriveHardened(index); | |
479 | } | |
480 | else { | |
481 | key = bip32ExtendedKey.derive(index); | |
482 | } | |
483 | var address = key.getAddress().toString(); | |
484 | var privkey = key.privKey.toWIF(network); | |
485 | var pubkey = key.pubKey.toHex(); | |
486 | var indexText = getDerivationPath() + "/" + index; | |
487 | if (useHardenedAddresses) { | |
488 | indexText = indexText + "'"; | |
489 | } | |
490 | addAddressToList(indexText, address, pubkey, privkey); | |
491 | }, 50) | |
492 | } | |
493 | ||
494 | init(); | |
495 | ||
496 | } | |
497 | ||
498 | function showMore() { | |
499 | var start = DOM.addresses.children().length; | |
500 | var rowsToAdd = parseInt(DOM.rowsToAdd.val()); | |
501 | if (isNaN(rowsToAdd)) { | |
502 | rowsToAdd = 20; | |
503 | DOM.rowsToAdd.val("20"); | |
504 | } | |
505 | if (rowsToAdd > 200) { | |
506 | var msg = "Generating " + rowsToAdd + " rows could take a while. "; | |
507 | msg += "Do you want to continue?"; | |
508 | if (!confirm(msg)) { | |
509 | return; | |
510 | } | |
511 | } | |
512 | displayAddresses(start, rowsToAdd); | |
513 | } | |
514 | ||
515 | function clearDisplay() { | |
516 | clearAddressesList(); | |
517 | clearKey(); | |
518 | hideValidationError(); | |
519 | } | |
520 | ||
521 | function clearAddressesList() { | |
522 | DOM.addresses.empty(); | |
523 | } | |
524 | ||
525 | function clearKey() { | |
526 | DOM.rootKey.val(""); | |
527 | DOM.extendedPrivKey.val(""); | |
528 | DOM.extendedPubKey.val(""); | |
529 | } | |
530 | ||
531 | function addAddressToList(indexText, address, pubkey, privkey) { | |
532 | var row = $(addressRowTemplate.html()); | |
533 | // Elements | |
534 | var indexCell = row.find(".index span"); | |
535 | var addressCell = row.find(".address span"); | |
536 | var pubkeyCell = row.find(".pubkey span"); | |
537 | var privkeyCell = row.find(".privkey span"); | |
538 | // Content | |
539 | indexCell.text(indexText); | |
540 | addressCell.text(address); | |
541 | pubkeyCell.text(pubkey); | |
542 | privkeyCell.text(privkey); | |
543 | // Visibility | |
544 | if (!showIndex) { | |
545 | indexCell.addClass("invisible"); | |
546 | } | |
547 | if (!showAddress) { | |
548 | addressCell.addClass("invisible"); | |
549 | } | |
550 | if (!showPubKey) { | |
551 | pubkeyCell.addClass("invisible"); | |
552 | } | |
553 | if (!showPrivKey) { | |
554 | privkeyCell.addClass("invisible"); | |
555 | } | |
556 | DOM.addresses.append(row); | |
557 | } | |
558 | ||
559 | function hasStrongRandom() { | |
560 | return 'crypto' in window && window['crypto'] !== null; | |
561 | } | |
562 | ||
563 | function disableForms() { | |
564 | $("form").on("submit", function(e) { | |
565 | e.preventDefault(); | |
566 | }); | |
567 | } | |
568 | ||
569 | function parseIntNoNaN(val, defaultVal) { | |
570 | var v = parseInt(val); | |
571 | if (isNaN(v)) { | |
572 | return defaultVal; | |
573 | } | |
574 | return v; | |
575 | } | |
576 | ||
577 | function showPending() { | |
578 | DOM.feedback | |
579 | .text("Calculating...") | |
580 | .show(); | |
581 | } | |
582 | ||
583 | function findNearestWord(word) { | |
584 | var language = getLanguage(); | |
585 | var words = WORDLISTS[language]; | |
586 | var minDistance = 99; | |
587 | var closestWord = words[0]; | |
588 | for (var i=0; i<words.length; i++) { | |
589 | var comparedTo = words[i]; | |
590 | var distance = Levenshtein.get(word, comparedTo); | |
591 | if (distance < minDistance) { | |
592 | closestWord = comparedTo; | |
593 | minDistance = distance; | |
594 | } | |
595 | } | |
596 | return closestWord; | |
597 | } | |
598 | ||
599 | function hidePending() { | |
600 | DOM.feedback | |
601 | .text("") | |
602 | .hide(); | |
603 | } | |
604 | ||
605 | function populateNetworkSelect() { | |
606 | for (var i=0; i<networks.length; i++) { | |
607 | var network = networks[i]; | |
608 | var option = $("<option>"); | |
609 | option.attr("value", i); | |
610 | option.text(network.name); | |
611 | DOM.phraseNetwork.append(option); | |
612 | } | |
613 | } | |
614 | ||
615 | function getLanguage() { | |
616 | var defaultLanguage = "english"; | |
617 | // Try to get from existing phrase | |
618 | var language = getLanguageFromPhrase(); | |
619 | // Try to get from url if not from phrase | |
620 | if (language.length == 0) { | |
621 | language = getLanguageFromUrl(); | |
622 | } | |
623 | // Default to English if no other option | |
624 | if (language.length == 0) { | |
625 | language = defaultLanguage; | |
626 | } | |
627 | return language; | |
628 | } | |
629 | ||
630 | function getLanguageFromPhrase(phrase) { | |
631 | // Check if how many words from existing phrase match a language. | |
632 | var language = ""; | |
633 | if (!phrase) { | |
634 | phrase = DOM.phrase.val(); | |
635 | } | |
636 | if (phrase.length > 0) { | |
637 | var words = phraseToWordArray(phrase); | |
638 | var languageMatches = {}; | |
639 | for (l in WORDLISTS) { | |
640 | // Track how many words match in this language | |
641 | languageMatches[l] = 0; | |
642 | for (var i=0; i<words.length; i++) { | |
643 | var wordInLanguage = WORDLISTS[l].indexOf(words[i]) > -1; | |
644 | if (wordInLanguage) { | |
645 | languageMatches[l]++; | |
646 | } | |
647 | } | |
648 | // Find languages with most word matches. | |
649 | // This is made difficult due to commonalities between Chinese | |
650 | // simplified vs traditional. | |
651 | var mostMatches = 0; | |
652 | var mostMatchedLanguages = []; | |
653 | for (var l in languageMatches) { | |
654 | var numMatches = languageMatches[l]; | |
655 | if (numMatches > mostMatches) { | |
656 | mostMatches = numMatches; | |
657 | mostMatchedLanguages = [l]; | |
658 | } | |
659 | else if (numMatches == mostMatches) { | |
660 | mostMatchedLanguages.push(l); | |
661 | } | |
662 | } | |
663 | } | |
664 | if (mostMatchedLanguages.length > 0) { | |
665 | // Use first language and warn if multiple detected | |
666 | language = mostMatchedLanguages[0]; | |
667 | if (mostMatchedLanguages.length > 1) { | |
668 | console.warn("Multiple possible languages"); | |
669 | console.warn(mostMatchedLanguages); | |
670 | } | |
671 | } | |
672 | } | |
673 | return language; | |
674 | } | |
675 | ||
676 | function getLanguageFromUrl() { | |
677 | for (var language in WORDLISTS) { | |
678 | if (window.location.hash.indexOf(language) > -1) { | |
679 | return language; | |
680 | } | |
681 | } | |
682 | return ""; | |
683 | } | |
684 | ||
685 | function setMnemonicLanguage() { | |
686 | var language = getLanguage(); | |
687 | // Load the bip39 mnemonic generator for this language if required | |
688 | if (!(language in mnemonics)) { | |
689 | mnemonics[language] = new Mnemonic(language); | |
690 | } | |
691 | mnemonic = mnemonics[language]; | |
692 | } | |
693 | ||
694 | function convertPhraseToNewLanguage() { | |
695 | var oldLanguage = getLanguageFromPhrase(); | |
696 | var newLanguage = getLanguageFromUrl(); | |
697 | var oldPhrase = DOM.phrase.val(); | |
698 | var oldWords = phraseToWordArray(oldPhrase); | |
699 | var newWords = []; | |
700 | for (var i=0; i<oldWords.length; i++) { | |
701 | var oldWord = oldWords[i]; | |
702 | var index = WORDLISTS[oldLanguage].indexOf(oldWord); | |
703 | var newWord = WORDLISTS[newLanguage][index]; | |
704 | newWords.push(newWord); | |
705 | } | |
706 | newPhrase = wordArrayToPhrase(newWords); | |
707 | return newPhrase; | |
708 | } | |
709 | ||
710 | // TODO look at jsbip39 - mnemonic.splitWords | |
711 | function phraseToWordArray(phrase) { | |
712 | var words = phrase.split(/\s/g); | |
713 | var noBlanks = []; | |
714 | for (var i=0; i<words.length; i++) { | |
715 | var word = words[i]; | |
716 | if (word.length > 0) { | |
717 | noBlanks.push(word); | |
718 | } | |
719 | } | |
720 | return noBlanks; | |
721 | } | |
722 | ||
723 | // TODO look at jsbip39 - mnemonic.joinWords | |
724 | function wordArrayToPhrase(words) { | |
725 | var phrase = words.join(" "); | |
726 | var language = getLanguageFromPhrase(phrase); | |
727 | if (language == "japanese") { | |
728 | phrase = words.join("\u3000"); | |
729 | } | |
730 | return phrase; | |
731 | } | |
732 | ||
733 | function isUsingOwnEntropy() { | |
734 | return DOM.useEntropy.prop("checked"); | |
735 | } | |
736 | ||
737 | function setMnemonicFromEntropy() { | |
738 | hideEntropyFeedback(); | |
739 | // Get entropy value | |
740 | var entropyStr = DOM.entropy.val(); | |
741 | // Work out minimum base for entropy | |
742 | var entropy = Entropy.fromString(entropyStr); | |
743 | if (entropy.binaryStr.length == 0) { | |
744 | return; | |
745 | } | |
746 | // Show entropy details | |
747 | showEntropyFeedback(entropy); | |
748 | // Use entropy hash if not using raw entropy | |
749 | var bits = entropy.binaryStr; | |
750 | var mnemonicLength = DOM.entropyMnemonicLength.val(); | |
751 | if (mnemonicLength != "raw") { | |
752 | // Get bits by hashing entropy with SHA256 | |
753 | var hash = sjcl.hash.sha256.hash(entropy.cleanStr); | |
754 | var hex = sjcl.codec.hex.fromBits(hash); | |
755 | bits = BigInteger.parse(hex, 16).toString(2); | |
756 | for (var i=0; i<256-bits.length; i++) { | |
757 | bits = "0" + bits; | |
758 | } | |
759 | // Truncate hash to suit number of words | |
760 | mnemonicLength = parseInt(mnemonicLength); | |
761 | var numberOfBits = 32 * mnemonicLength / 3; | |
762 | bits = bits.substring(0, numberOfBits); | |
763 | } | |
764 | // Discard trailing entropy | |
765 | var bitsToUse = Math.floor(bits.length / 32) * 32; | |
766 | var binaryStr = bits.substring(0, bitsToUse); | |
767 | // Convert entropy string to numeric array | |
768 | var entropyArr = []; | |
769 | for (var i=0; i<binaryStr.length / 8; i++) { | |
770 | var byteAsBits = binaryStr.substring(i*8, i*8+8); | |
771 | var entropyByte = parseInt(byteAsBits, 2); | |
772 | entropyArr.push(entropyByte) | |
773 | } | |
774 | // Convert entropy array to mnemonic | |
775 | var phrase = mnemonic.toMnemonic(entropyArr); | |
776 | // Set the mnemonic in the UI | |
777 | DOM.phrase.val(phrase); | |
778 | } | |
779 | ||
780 | function hideEntropyFeedback() { | |
781 | DOM.entropyFeedback.addClass("hidden"); | |
782 | DOM.entropyFiltered.text(""); | |
783 | DOM.entropyType.text(""); | |
784 | DOM.entropyStrength.text(""); | |
785 | DOM.entropyEventCount.text(""); | |
786 | DOM.entropyBits.text(""); | |
787 | DOM.entropyBitsPerEvent.text(""); | |
788 | } | |
789 | ||
790 | function showEntropyFeedback(entropy) { | |
791 | var strength = "extremely weak"; | |
792 | if (entropy.binaryStr.length >= 64) { | |
793 | strength = "very weak"; | |
794 | } | |
795 | if (entropy.binaryStr.length >= 96) { | |
796 | strength = "weak"; | |
797 | } | |
798 | if (entropy.binaryStr.length >= 128) { | |
799 | strength = "strong"; | |
800 | } | |
801 | if (entropy.binaryStr.length >= 160) { | |
802 | strength = "very strong"; | |
803 | } | |
804 | if (entropy.binaryStr.length >= 192) { | |
805 | strength = "extremely strong"; | |
806 | } | |
807 | var bitsStr = entropy.binaryStr.length; | |
808 | if (entropy.base.asInt != 2) { | |
809 | bitsStr += " (" + entropy.binaryStr + ")"; | |
810 | } | |
811 | DOM.entropyFiltered.text(entropy.cleanStr); | |
812 | DOM.entropyType.text(entropy.base.str); | |
813 | DOM.entropyStrength.text(strength); | |
814 | DOM.entropyEventCount.text(entropy.base.ints.length); | |
815 | DOM.entropyBits.text(bitsStr); | |
816 | DOM.entropyBitsPerEvent.text(Math.log2(entropy.base.asInt).toFixed(2)); | |
817 | DOM.entropyFeedback.removeClass("hidden"); | |
818 | } | |
819 | ||
820 | var networks = [ | |
821 | { | |
822 | name: "Bitcoin", | |
823 | onSelect: function() { | |
824 | network = bitcoin.networks.bitcoin; | |
825 | DOM.bip44coin.val(0); | |
826 | }, | |
827 | }, | |
828 | { | |
829 | name: "Bitcoin Testnet", | |
830 | onSelect: function() { | |
831 | network = bitcoin.networks.testnet; | |
832 | DOM.bip44coin.val(1); | |
833 | }, | |
834 | }, | |
835 | { | |
836 | name: "Litecoin", | |
837 | onSelect: function() { | |
838 | network = bitcoin.networks.litecoin; | |
839 | DOM.bip44coin.val(2); | |
840 | }, | |
841 | }, | |
842 | { | |
843 | name: "Dogecoin", | |
844 | onSelect: function() { | |
845 | network = bitcoin.networks.dogecoin; | |
846 | DOM.bip44coin.val(3); | |
847 | }, | |
848 | }, | |
849 | { | |
850 | name: "ShadowCash", | |
851 | onSelect: function() { | |
852 | network = bitcoin.networks.shadow; | |
853 | DOM.bip44coin.val(35); | |
854 | }, | |
855 | }, | |
856 | { | |
857 | name: "ShadowCash Testnet", | |
858 | onSelect: function() { | |
859 | network = bitcoin.networks.shadowtn; | |
860 | DOM.bip44coin.val(1); | |
861 | }, | |
862 | }, | |
863 | { | |
864 | name: "Viacoin", | |
865 | onSelect: function() { | |
866 | network = bitcoin.networks.viacoin; | |
867 | DOM.bip44coin.val(14); | |
868 | }, | |
869 | }, | |
870 | { | |
871 | name: "Viacoin Testnet", | |
872 | onSelect: function() { | |
873 | network = bitcoin.networks.viacointestnet; | |
874 | DOM.bip44coin.val(1); | |
875 | }, | |
876 | }, | |
877 | { | |
878 | name: "Jumbucks", | |
879 | onSelect: function() { | |
880 | network = bitcoin.networks.jumbucks; | |
881 | DOM.bip44coin.val(26); | |
882 | }, | |
883 | }, | |
884 | { | |
885 | name: "CLAM", | |
886 | onSelect: function() { | |
887 | network = bitcoin.networks.clam; | |
888 | DOM.bip44coin.val(23); | |
889 | }, | |
890 | }, | |
891 | { | |
892 | name: "DASH", | |
893 | onSelect: function() { | |
894 | network = bitcoin.networks.dash; | |
895 | DOM.bip44coin.val(5); | |
896 | }, | |
897 | }, | |
898 | { | |
899 | name: "Namecoin", | |
900 | onSelect: function() { | |
901 | network = bitcoin.networks.namecoin; | |
902 | DOM.bip44coin.val(7); | |
903 | }, | |
904 | }, | |
905 | { | |
906 | name: "Peercoin", | |
907 | onSelect: function() { | |
908 | network = bitcoin.networks.peercoin; | |
909 | DOM.bip44coin.val(6); | |
910 | }, | |
911 | }, | |
912 | ] | |
913 | ||
914 | init(); | |
915 | ||
916 | })(); |