3 // mnemonics is populated as required by getLanguage
4 var mnemonics
= { "english": new Mnemonic("english") };
5 var mnemonic
= mnemonics
["english"];
7 var bip32RootKey
= null;
8 var bip32ExtendedKey
= null;
9 var network
= bitcoin
.networks
.bitcoin
;
10 var addressRowTemplate
= $("#address-row-template");
13 var showAddress
= true;
14 var showPrivKey
= true;
16 var phraseChangeTimeoutEvent
= null;
17 var rootKeyChangedTimeoutEvent
= null;
20 DOM
.network
= $(".network");
21 DOM
.phraseNetwork
= $("#network-phrase");
22 DOM
.phrase
= $(".phrase");
23 DOM
.passphrase
= $(".passphrase");
24 DOM
.generate
= $(".generate");
25 DOM
.seed
= $(".seed");
26 DOM
.rootKey
= $(".root-key");
27 DOM
.extendedPrivKey
= $(".extended-priv-key");
28 DOM
.extendedPubKey
= $(".extended-pub-key");
29 DOM
.bip32tab
= $("#bip32-tab");
30 DOM
.bip44tab
= $("#bip44-tab");
31 DOM
.bip32panel
= $("#bip32");
32 DOM
.bip44panel
= $("#bip44");
33 DOM
.bip32path
= $("#bip32-path");
34 DOM
.bip44path
= $("#bip44-path");
35 DOM
.bip44purpose
= $("#bip44 .purpose");
36 DOM
.bip44coin
= $("#bip44 .coin");
37 DOM
.bip44account
= $("#bip44 .account");
38 DOM
.bip44change
= $("#bip44 .change");
39 DOM
.strength
= $(".strength");
40 DOM
.hardenedAddresses
= $(".hardened-addresses");
41 DOM
.addresses
= $(".addresses");
42 DOM
.rowsToAdd
= $(".rows-to-add");
43 DOM
.more
= $(".more");
44 DOM
.feedback
= $(".feedback");
45 DOM
.tab
= $(".derivation-type a");
46 DOM
.indexToggle
= $(".index-toggle");
47 DOM
.addressToggle
= $(".address-toggle");
48 DOM
.privateKeyToggle
= $(".private-key-toggle");
49 DOM
.languages
= $(".languages a");
53 DOM
.network
.on("change", networkChanged
);
54 DOM
.phrase
.on("input", delayedPhraseChanged
);
55 DOM
.passphrase
.on("input", delayedPhraseChanged
);
56 DOM
.generate
.on("click", generateClicked
);
57 DOM
.more
.on("click", showMore
);
58 DOM
.rootKey
.on("input", delayedRootKeyChanged
);
59 DOM
.bip32path
.on("input", calcForDerivationPath
);
60 DOM
.bip44purpose
.on("input", calcForDerivationPath
);
61 DOM
.bip44coin
.on("input", calcForDerivationPath
);
62 DOM
.bip44account
.on("input", calcForDerivationPath
);
63 DOM
.bip44change
.on("input", calcForDerivationPath
);
64 DOM
.tab
.on("shown.bs.tab", calcForDerivationPath
);
65 DOM
.hardenedAddresses
.on("change", calcForDerivationPath
);
66 DOM
.indexToggle
.on("click", toggleIndexes
);
67 DOM
.addressToggle
.on("click", toggleAddresses
);
68 DOM
.privateKeyToggle
.on("click", togglePrivateKeys
);
69 DOM
.languages
.on("click", languageChanged
);
72 hideValidationError();
73 populateNetworkSelect();
78 function networkChanged(e
) {
79 var networkIndex
= e
.target
.value
;
80 networks
[networkIndex
].onSelect();
89 function delayedPhraseChanged() {
90 hideValidationError();
92 if (phraseChangeTimeoutEvent
!= null) {
93 clearTimeout(phraseChangeTimeoutEvent
);
95 phraseChangeTimeoutEvent
= setTimeout(phraseChanged
, 400);
98 function phraseChanged() {
100 hideValidationError();
101 setMnemonicLanguage();
102 // Get the mnemonic phrase
103 var phrase
= DOM
.phrase
.val();
104 var errorText
= findPhraseErrors(phrase
);
106 showValidationError(errorText
);
109 // Calculate and display
110 var passphrase
= DOM
.passphrase
.val();
111 calcBip32RootKeyFromSeed(phrase
, passphrase
);
112 calcForDerivationPath();
116 function delayedRootKeyChanged() {
117 // Warn if there is an existing mnemonic or passphrase.
118 if (DOM
.phrase
.val().length
> 0 || DOM
.passphrase
.val().length
> 0) {
119 if (!confirm("This will clear existing mnemonic and passphrase")) {
120 DOM
.rootKey
.val(bip32RootKey
);
124 hideValidationError();
126 // Clear existing mnemonic and passphrase
128 DOM
.passphrase
.val("");
130 if (rootKeyChangedTimeoutEvent
!= null) {
131 clearTimeout(rootKeyChangedTimeoutEvent
);
133 rootKeyChangedTimeoutEvent
= setTimeout(rootKeyChanged
, 400);
136 function rootKeyChanged() {
138 hideValidationError();
139 // Validate the root key TODO
140 var rootKeyBase58
= DOM
.rootKey
.val();
141 var errorText
= validateRootKey(rootKeyBase58
);
143 showValidationError(errorText
);
146 // Calculate and display
147 calcBip32RootKeyFromBase58(rootKeyBase58
);
148 calcForDerivationPath();
152 function calcForDerivationPath() {
154 hideValidationError();
155 // Get the derivation path
156 var derivationPath
= getDerivationPath();
157 var errorText
= findDerivationPathErrors(derivationPath
);
159 showValidationError(errorText
);
162 calcBip32ExtendedKey(derivationPath
);
167 function generateClicked() {
170 setTimeout(function() {
171 setMnemonicLanguage();
172 var phrase
= generateRandomPhrase();
180 function languageChanged() {
181 setTimeout(function() {
182 setMnemonicLanguage();
183 if (DOM
.phrase
.val().length
> 0) {
184 var newPhrase
= convertPhraseToNewLanguage();
185 DOM
.phrase
.val(newPhrase
);
189 DOM
.generate
.trigger("click");
194 function toggleIndexes() {
195 showIndex
= !showIndex
;
196 $("td.index span").toggleClass("invisible");
199 function toggleAddresses() {
200 showAddress
= !showAddress
;
201 $("td.address span").toggleClass("invisible");
204 function togglePrivateKeys() {
205 showPrivKey
= !showPrivKey
;
206 $("td.privkey span").toggleClass("invisible");
211 function generateRandomPhrase() {
212 if (!hasStrongRandom()) {
213 var errorText
= "This browser does not support strong randomness";
214 showValidationError(errorText
);
217 var numWords
= parseInt(DOM
.strength
.val());
218 var strength
= numWords
/ 3 * 32;
219 var words
= mnemonic
.generate(strength
);
220 DOM
.phrase
.val(words
);
224 function calcBip32RootKeyFromSeed(phrase
, passphrase
) {
225 seed
= mnemonic
.toSeed(phrase
, passphrase
);
226 bip32RootKey
= bitcoin
.HDNode
.fromSeedHex(seed
, network
);
229 function calcBip32RootKeyFromBase58(rootKeyBase58
) {
230 bip32RootKey
= bitcoin
.HDNode
.fromBase58(rootKeyBase58
, network
);
233 function calcBip32ExtendedKey(path
) {
234 bip32ExtendedKey
= bip32RootKey
;
235 // Derive the key from the path
236 var pathBits
= path
.split("/");
237 for (var i
=0; i
<pathBits
.length
; i
++) {
238 var bit
= pathBits
[i
];
239 var index
= parseInt(bit
);
243 var hardened
= bit
[bit
.length
-1] == "'";
245 bip32ExtendedKey
= bip32ExtendedKey
.deriveHardened(index
);
248 bip32ExtendedKey
= bip32ExtendedKey
.derive(index
);
253 function showValidationError(errorText
) {
259 function hideValidationError() {
265 function findPhraseErrors(phrase
) {
266 // TODO make this right
267 // Preprocess the words
268 phrase
= mnemonic
.normalizeString(phrase
);
269 var words
= phraseToWordArray(phrase
);
271 for (var i
=0; i
<words
.length
; i
++) {
273 var language
= getLanguage();
274 if (WORDLISTS
[language
].indexOf(word
) == -1) {
275 console
.log("Finding closest match to " + word
);
276 var nearestWord
= findNearestWord(word
);
277 return word
+ " not in wordlist, did you mean " + nearestWord
+ "?";
280 // Check the words are valid
281 var properPhrase
= wordArrayToPhrase(words
);
282 var isValid
= mnemonic
.check(properPhrase
);
284 return "Invalid mnemonic";
289 function validateRootKey(rootKeyBase58
) {
291 bitcoin
.HDNode
.fromBase58(rootKeyBase58
);
294 return "Invalid root key";
299 function getDerivationPath() {
300 if (DOM
.bip44tab
.hasClass("active")) {
301 var purpose
= parseIntNoNaN(DOM
.bip44purpose
.val(), 44);
302 var coin
= parseIntNoNaN(DOM
.bip44coin
.val(), 0);
303 var account
= parseIntNoNaN(DOM
.bip44account
.val(), 0);
304 var change
= parseIntNoNaN(DOM
.bip44change
.val(), 0);
306 path
+= purpose
+ "'/";
308 path
+= account
+ "'/";
310 DOM
.bip44path
.val(path
);
311 var derivationPath
= DOM
.bip44path
.val();
312 console
.log("Using derivation path from BIP44 tab: " + derivationPath
);
313 return derivationPath
;
315 else if (DOM
.bip32tab
.hasClass("active")) {
316 var derivationPath
= DOM
.bip32path
.val();
317 console
.log("Using derivation path from BIP32 tab: " + derivationPath
);
318 return derivationPath
;
321 console
.log("Unknown derivation path");
325 function findDerivationPathErrors(path
) {
326 // TODO is not perfect but is better than nothing
328 // https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki#test-vectors
330 // https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki#extended-keys
331 var maxDepth
= 255; // TODO verify this!!
332 var maxIndexValue
= Math
.pow(2, 31); // TODO verify this!!
333 if (path
[0] != "m") {
334 return "First character must be 'm'";
336 if (path
.length
> 1) {
337 if (path
[1] != "/") {
338 return "Separator must be '/'";
340 var indexes
= path
.split("/");
341 if (indexes
.length
> maxDepth
) {
342 return "Derivation depth is " + indexes
.length
+ ", must be less than " + maxDepth
;
344 for (var depth
= 1; depth
<indexes
.length
; depth
++) {
345 var index
= indexes
[depth
];
346 var invalidChars
= index
.replace(/^[0-9]+'?$/g, "")
347 if (invalidChars
.length
> 0) {
348 return "Invalid characters " + invalidChars
+ " found at depth " + depth
;
350 var indexValue
= parseInt(index
.replace("'", ""));
352 return "Invalid number at depth " + depth
;
354 if (indexValue
> maxIndexValue
) {
355 return "Value of " + indexValue
+ " at depth " + depth
+ " must be less than " + maxIndexValue
;
362 function displayBip32Info() {
365 var rootKey
= bip32RootKey
.toBase58();
366 DOM
.rootKey
.val(rootKey
);
367 var extendedPrivKey
= bip32ExtendedKey
.toBase58();
368 DOM
.extendedPrivKey
.val(extendedPrivKey
);
369 var extendedPubKey
= bip32ExtendedKey
.toBase58(false);
370 DOM
.extendedPubKey
.val(extendedPubKey
);
371 // Display the addresses and privkeys
372 clearAddressesList();
373 displayAddresses(0, 20);
376 function displayAddresses(start
, total
) {
377 for (var i
=0; i
<total
; i
++) {
378 var index
= i
+ start
;
383 function TableRow(index
) {
385 var useHardenedAddresses
= DOM
.hardenedAddresses
.prop("checked");
391 function calculateValues() {
392 setTimeout(function() {
394 if (useHardenedAddresses
) {
395 key
= bip32ExtendedKey
.deriveHardened(index
);
398 key
= bip32ExtendedKey
.derive(index
);
400 var address
= key
.getAddress().toString();
401 var privkey
= key
.privKey
.toWIF(network
);
402 var indexText
= getDerivationPath() + "/" + index
;
403 if (useHardenedAddresses
) {
404 indexText
= indexText
+ "'";
406 addAddressToList(indexText
, address
, privkey
);
414 function showMore() {
415 var start
= DOM
.addresses
.children().length
;
416 var rowsToAdd
= parseInt(DOM
.rowsToAdd
.val());
417 if (isNaN(rowsToAdd
)) {
419 DOM
.rowsToAdd
.val("20");
421 if (rowsToAdd
> 200) {
422 var msg
= "Generating " + rowsToAdd
+ " rows could take a while. ";
423 msg
+= "Do you want to continue?";
428 displayAddresses(start
, rowsToAdd
);
431 function clearDisplay() {
432 clearAddressesList();
434 hideValidationError();
437 function clearAddressesList() {
438 DOM
.addresses
.empty();
441 function clearKey() {
443 DOM
.extendedPrivKey
.val("");
444 DOM
.extendedPubKey
.val("");
447 function addAddressToList(indexText
, address
, privkey
) {
448 var row
= $(addressRowTemplate
.html());
450 var indexCell
= row
.find(".index span");
451 var addressCell
= row
.find(".address span");
452 var privkeyCell
= row
.find(".privkey span");
454 indexCell
.text(indexText
);
455 addressCell
.text(address
);
456 privkeyCell
.text(privkey
);
459 indexCell
.addClass("invisible");
462 addressCell
.addClass("invisible");
465 privkeyCell
.addClass("invisible");
467 DOM
.addresses
.append(row
);
470 function hasStrongRandom() {
471 return 'crypto' in window
&& window
['crypto'] !== null;
474 function disableForms() {
475 $("form").on("submit", function(e
) {
480 function parseIntNoNaN(val
, defaultVal
) {
481 var v
= parseInt(val
);
488 function showPending() {
490 .text("Calculating...")
494 function findNearestWord(word
) {
495 var language
= getLanguage();
496 var words
= WORDLISTS
[language
];
497 var minDistance
= 99;
498 var closestWord
= words
[0];
499 for (var i
=0; i
<words
.length
; i
++) {
500 var comparedTo
= words
[i
];
501 var distance
= Levenshtein
.get(word
, comparedTo
);
502 if (distance
< minDistance
) {
503 closestWord
= comparedTo
;
504 minDistance
= distance
;
510 function hidePending() {
516 function populateNetworkSelect() {
517 for (var i
=0; i
<networks
.length
; i
++) {
518 var network
= networks
[i
];
519 var option
= $("<option>");
520 option
.attr("value", i
);
521 option
.text(network
.name
);
522 DOM
.phraseNetwork
.append(option
);
526 function getLanguage() {
527 var defaultLanguage
= "english";
528 // Try to get from existing phrase
529 var language
= getLanguageFromPhrase();
530 // Try to get from url if not from phrase
531 if (language
.length
== 0) {
532 language
= getLanguageFromUrl();
534 // Default to English if no other option
535 if (language
.length
== 0) {
536 language
= defaultLanguage
;
541 function getLanguageFromPhrase(phrase
) {
542 // Check if how many words from existing phrase match a language.
545 phrase
= DOM
.phrase
.val();
547 if (phrase
.length
> 0) {
548 var words
= phraseToWordArray(phrase
);
549 var languageMatches
= {};
550 for (l
in WORDLISTS
) {
551 // Track how many words match in this language
552 languageMatches
[l
] = 0;
553 for (var i
=0; i
<words
.length
; i
++) {
554 var wordInLanguage
= WORDLISTS
[l
].indexOf(words
[i
]) > -1;
555 if (wordInLanguage
) {
556 languageMatches
[l
]++;
559 // Find languages with most word matches.
560 // This is made difficult due to commonalities between Chinese
561 // simplified vs traditional.
563 var mostMatchedLanguages
= [];
564 for (var l
in languageMatches
) {
565 var numMatches
= languageMatches
[l
];
566 if (numMatches
> mostMatches
) {
567 mostMatches
= numMatches
;
568 mostMatchedLanguages
= [l
];
570 else if (numMatches
== mostMatches
) {
571 mostMatchedLanguages
.push(l
);
575 if (mostMatchedLanguages
.length
> 0) {
576 // Use first language and warn if multiple detected
577 language
= mostMatchedLanguages
[0];
578 if (mostMatchedLanguages
.length
> 1) {
579 console
.warn("Multiple possible languages");
580 console
.warn(mostMatchedLanguages
);
587 function getLanguageFromUrl() {
588 return window
.location
.hash
.substring(1);
591 function setMnemonicLanguage() {
592 var language
= getLanguage();
593 // Load the bip39 mnemonic generator for this language if required
594 if (!(language
in mnemonics
)) {
595 mnemonics
[language
] = new Mnemonic(language
);
597 mnemonic
= mnemonics
[language
];
600 function convertPhraseToNewLanguage() {
601 var oldLanguage
= getLanguageFromPhrase();
602 var newLanguage
= getLanguageFromUrl();
603 var oldPhrase
= DOM
.phrase
.val();
604 var oldWords
= phraseToWordArray(oldPhrase
);
606 for (var i
=0; i
<oldWords
.length
; i
++) {
607 var oldWord
= oldWords
[i
];
608 var index
= WORDLISTS
[oldLanguage
].indexOf(oldWord
);
609 var newWord
= WORDLISTS
[newLanguage
][index
];
610 newWords
.push(newWord
);
612 newPhrase
= wordArrayToPhrase(newWords
);
616 // TODO look at jsbip39 - mnemonic.splitWords
617 function phraseToWordArray(phrase
) {
618 var words
= phrase
.split(/\s/g);
620 for (var i
=0; i
<words
.length
; i
++) {
622 if (word
.length
> 0) {
629 // TODO look at jsbip39 - mnemonic.joinWords
630 function wordArrayToPhrase(words
) {
631 var phrase
= words
.join(" ");
632 var language
= getLanguageFromPhrase(phrase
);
633 if (language
== "japanese") {
634 phrase
= words
.join("\u3000");
642 onSelect: function() {
643 network
= bitcoin
.networks
.bitcoin
;
644 DOM
.bip44coin
.val(0);
648 name: "Bitcoin Testnet",
649 onSelect: function() {
650 network
= bitcoin
.networks
.testnet
;
651 DOM
.bip44coin
.val(1);
656 onSelect: function() {
657 network
= bitcoin
.networks
.litecoin
;
658 DOM
.bip44coin
.val(2);
663 onSelect: function() {
664 network
= bitcoin
.networks
.dogecoin
;
665 DOM
.bip44coin
.val(3);
670 onSelect: function() {
671 network
= bitcoin
.networks
.shadow
;
672 DOM
.bip44coin
.val(35);
676 name: "ShadowCash Testnet",
677 onSelect: function() {
678 network
= bitcoin
.networks
.shadowtn
;
679 DOM
.bip44coin
.val(1);
684 onSelect: function() {
685 network
= bitcoin
.networks
.viacoin
;
686 DOM
.bip44coin
.val(14);
690 name: "Viacoin Testnet",
691 onSelect: function() {
692 network
= bitcoin
.networks
.viacointestnet
;
693 DOM
.bip44coin
.val(1);
698 onSelect: function() {
699 network
= bitcoin
.networks
.jumbucks
;
700 DOM
.bip44coin
.val(26);
705 onSelect: function() {
706 network
= bitcoin
.networks
.clam
;
707 DOM
.bip44coin
.val(23);
712 onSelect: function() {
713 network
= bitcoin
.networks
.dash
;
714 DOM
.bip44coin
.val(5);
719 onSelect: function() {
720 network
= bitcoin
.networks
.namecoin
;
721 DOM
.bip44coin
.val(7);
726 onSelect: function() {
727 network
= bitcoin
.networks
.peercoin
;
728 DOM
.bip44coin
.val(6);