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 showPubKey
= true;
15 var showPrivKey
= true;
18 var entropyChangeTimeoutEvent
= null;
19 var phraseChangeTimeoutEvent
= null;
20 var rootKeyChangedTimeoutEvent
= null;
22 var generationProcesses
= [];
25 DOM
.network
= $(".network");
26 DOM
.phraseNetwork
= $("#network-phrase");
27 DOM
.useEntropy
= $(".use-entropy");
28 DOM
.entropyContainer
= $(".entropy-container");
29 DOM
.entropy
= $(".entropy");
30 DOM
.entropyFiltered
= DOM
.entropyContainer
.find(".filtered");
31 DOM
.entropyType
= DOM
.entropyContainer
.find(".type");
32 DOM
.entropyStrength
= DOM
.entropyContainer
.find(".strength");
33 DOM
.entropyEventCount
= DOM
.entropyContainer
.find(".event-count");
34 DOM
.entropyBits
= DOM
.entropyContainer
.find(".bits");
35 DOM
.entropyBitsPerEvent
= DOM
.entropyContainer
.find(".bits-per-event");
36 DOM
.entropyWordCount
= DOM
.entropyContainer
.find(".word-count");
37 DOM
.entropyBinary
= DOM
.entropyContainer
.find(".binary");
38 DOM
.entropyMnemonicLength
= DOM
.entropyContainer
.find(".mnemonic-length");
39 DOM
.phrase
= $(".phrase");
40 DOM
.passphrase
= $(".passphrase");
41 DOM
.generateContainer
= $(".generate-container");
42 DOM
.generate
= $(".generate");
43 DOM
.seed
= $(".seed");
44 DOM
.rootKey
= $(".root-key");
45 DOM
.extendedPrivKey
= $(".extended-priv-key");
46 DOM
.extendedPubKey
= $(".extended-pub-key");
47 DOM
.bip32tab
= $("#bip32-tab");
48 DOM
.bip44tab
= $("#bip44-tab");
49 DOM
.bip32panel
= $("#bip32");
50 DOM
.bip44panel
= $("#bip44");
51 DOM
.bip32path
= $("#bip32-path");
52 DOM
.bip44path
= $("#bip44-path");
53 DOM
.bip44purpose
= $("#bip44 .purpose");
54 DOM
.bip44coin
= $("#bip44 .coin");
55 DOM
.bip44account
= $("#bip44 .account");
56 DOM
.bip44accountXprv
= $("#bip44 .account-xprv");
57 DOM
.bip44accountXpub
= $("#bip44 .account-xpub");
58 DOM
.bip44change
= $("#bip44 .change");
59 DOM
.generatedStrength
= $(".generate-container .strength");
60 DOM
.hardenedAddresses
= $(".hardened-addresses");
61 DOM
.addresses
= $(".addresses");
62 DOM
.rowsToAdd
= $(".rows-to-add");
63 DOM
.more
= $(".more");
64 DOM
.feedback
= $(".feedback");
65 DOM
.tab
= $(".derivation-type a");
66 DOM
.indexToggle
= $(".index-toggle");
67 DOM
.addressToggle
= $(".address-toggle");
68 DOM
.publicKeyToggle
= $(".public-key-toggle");
69 DOM
.privateKeyToggle
= $(".private-key-toggle");
70 DOM
.languages
= $(".languages a");
71 DOM
.qrContainer
= $(".qr-container");
72 DOM
.qrHider
= DOM
.qrContainer
.find(".qr-hider");
73 DOM
.qrImage
= DOM
.qrContainer
.find(".qr-image");
74 DOM
.qrHint
= DOM
.qrContainer
.find(".qr-hint");
75 DOM
.showQrEls
= $("[data-show-qr]");
79 DOM
.network
.on("change", networkChanged
);
80 DOM
.useEntropy
.on("change", setEntropyVisibility
);
81 DOM
.entropy
.on("input", delayedEntropyChanged
);
82 DOM
.entropyMnemonicLength
.on("change", entropyChanged
);
83 DOM
.phrase
.on("input", delayedPhraseChanged
);
84 DOM
.passphrase
.on("input", delayedPhraseChanged
);
85 DOM
.generate
.on("click", generateClicked
);
86 DOM
.more
.on("click", showMore
);
87 DOM
.rootKey
.on("input", delayedRootKeyChanged
);
88 DOM
.bip32path
.on("input", calcForDerivationPath
);
89 DOM
.bip44purpose
.on("input", calcForDerivationPath
);
90 DOM
.bip44coin
.on("input", calcForDerivationPath
);
91 DOM
.bip44account
.on("input", calcForDerivationPath
);
92 DOM
.bip44change
.on("input", calcForDerivationPath
);
93 DOM
.tab
.on("shown.bs.tab", calcForDerivationPath
);
94 DOM
.hardenedAddresses
.on("change", calcForDerivationPath
);
95 DOM
.indexToggle
.on("click", toggleIndexes
);
96 DOM
.addressToggle
.on("click", toggleAddresses
);
97 DOM
.publicKeyToggle
.on("click", togglePublicKeys
);
98 DOM
.privateKeyToggle
.on("click", togglePrivateKeys
);
99 DOM
.languages
.on("click", languageChanged
);
100 setQrEvents(DOM
.showQrEls
);
103 hideValidationError();
104 populateNetworkSelect();
109 function networkChanged(e
) {
110 var networkIndex
= e
.target
.value
;
111 networks
[networkIndex
].onSelect();
120 function setEntropyVisibility() {
121 if (isUsingOwnEntropy()) {
122 DOM
.entropyContainer
.removeClass("hidden");
123 DOM
.generateContainer
.addClass("hidden");
124 DOM
.phrase
.prop("readonly", true);
129 DOM
.entropyContainer
.addClass("hidden");
130 DOM
.generateContainer
.removeClass("hidden");
131 DOM
.phrase
.prop("readonly", false);
136 function delayedPhraseChanged() {
137 hideValidationError();
139 if (phraseChangeTimeoutEvent
!= null) {
140 clearTimeout(phraseChangeTimeoutEvent
);
142 phraseChangeTimeoutEvent
= setTimeout(phraseChanged
, 400);
145 function phraseChanged() {
147 hideValidationError();
148 setMnemonicLanguage();
149 // Get the mnemonic phrase
150 var phrase
= DOM
.phrase
.val();
151 var errorText
= findPhraseErrors(phrase
);
153 showValidationError(errorText
);
156 // Calculate and display
157 var passphrase
= DOM
.passphrase
.val();
158 calcBip32RootKeyFromSeed(phrase
, passphrase
);
159 calcForDerivationPath();
163 function delayedEntropyChanged() {
164 hideValidationError();
166 if (entropyChangeTimeoutEvent
!= null) {
167 clearTimeout(entropyChangeTimeoutEvent
);
169 entropyChangeTimeoutEvent
= setTimeout(entropyChanged
, 400);
172 function entropyChanged() {
173 // If blank entropy, clear mnemonic, addresses, errors
174 if (DOM
.entropy
.val().trim().length
== 0) {
176 clearEntropyFeedback();
178 showValidationError("Blank entropy");
181 // Get the current phrase to detect changes
182 var phrase
= DOM
.phrase
.val();
183 // Set the phrase from the entropy
184 setMnemonicFromEntropy();
185 // Recalc addresses if the phrase has changed
186 var newPhrase
= DOM
.phrase
.val();
187 if (newPhrase
!= phrase
) {
188 if (newPhrase
.length
== 0) {
200 function delayedRootKeyChanged() {
201 // Warn if there is an existing mnemonic or passphrase.
202 if (DOM
.phrase
.val().length
> 0 || DOM
.passphrase
.val().length
> 0) {
203 if (!confirm("This will clear existing mnemonic and passphrase")) {
204 DOM
.rootKey
.val(bip32RootKey
);
208 hideValidationError();
210 // Clear existing mnemonic and passphrase
212 DOM
.passphrase
.val("");
214 if (rootKeyChangedTimeoutEvent
!= null) {
215 clearTimeout(rootKeyChangedTimeoutEvent
);
217 rootKeyChangedTimeoutEvent
= setTimeout(rootKeyChanged
, 400);
220 function rootKeyChanged() {
222 hideValidationError();
223 // Validate the root key TODO
224 var rootKeyBase58
= DOM
.rootKey
.val();
225 var errorText
= validateRootKey(rootKeyBase58
);
227 showValidationError(errorText
);
230 // Calculate and display
231 calcBip32RootKeyFromBase58(rootKeyBase58
);
232 calcForDerivationPath();
235 function calcForDerivationPath() {
237 clearAddressesList();
238 hideValidationError();
239 // Get the derivation path
240 var derivationPath
= getDerivationPath();
241 var errorText
= findDerivationPathErrors(derivationPath
);
243 showValidationError(errorText
);
246 bip32ExtendedKey
= calcBip32ExtendedKey(derivationPath
);
247 if (bip44TabSelected()) {
254 function generateClicked() {
255 if (isUsingOwnEntropy()) {
260 setTimeout(function() {
261 setMnemonicLanguage();
262 var phrase
= generateRandomPhrase();
270 function languageChanged() {
271 setTimeout(function() {
272 setMnemonicLanguage();
273 if (DOM
.phrase
.val().length
> 0) {
274 var newPhrase
= convertPhraseToNewLanguage();
275 DOM
.phrase
.val(newPhrase
);
279 DOM
.generate
.trigger("click");
284 function toggleIndexes() {
285 showIndex
= !showIndex
;
286 $("td.index span").toggleClass("invisible");
289 function toggleAddresses() {
290 showAddress
= !showAddress
;
291 $("td.address span").toggleClass("invisible");
294 function togglePublicKeys() {
295 showPubKey
= !showPubKey
;
296 $("td.pubkey span").toggleClass("invisible");
299 function togglePrivateKeys() {
300 showPrivKey
= !showPrivKey
;
301 $("td.privkey span").toggleClass("invisible");
306 function generateRandomPhrase() {
307 if (!hasStrongRandom()) {
308 var errorText
= "This browser does not support strong randomness";
309 showValidationError(errorText
);
312 var numWords
= parseInt(DOM
.generatedStrength
.val());
313 var strength
= numWords
/ 3 * 32;
314 var words
= mnemonic
.generate(strength
);
315 DOM
.phrase
.val(words
);
319 function calcBip32RootKeyFromSeed(phrase
, passphrase
) {
320 seed
= mnemonic
.toSeed(phrase
, passphrase
);
321 bip32RootKey
= bitcoin
.HDNode
.fromSeedHex(seed
, network
);
324 function calcBip32RootKeyFromBase58(rootKeyBase58
) {
325 bip32RootKey
= bitcoin
.HDNode
.fromBase58(rootKeyBase58
, network
);
328 function calcBip32ExtendedKey(path
) {
329 // Check there's a root key to derive from
333 var extendedKey
= bip32RootKey
;
334 // Derive the key from the path
335 var pathBits
= path
.split("/");
336 for (var i
=0; i
<pathBits
.length
; i
++) {
337 var bit
= pathBits
[i
];
338 var index
= parseInt(bit
);
342 var hardened
= bit
[bit
.length
-1] == "'";
343 var isPriv
= "privKey" in extendedKey
;
344 var invalidDerivationPath
= hardened
&& !isPriv
;
345 if (invalidDerivationPath
) {
349 extendedKey
= extendedKey
.deriveHardened(index
);
352 extendedKey
= extendedKey
.derive(index
);
358 function showValidationError(errorText
) {
364 function hideValidationError() {
370 function findPhraseErrors(phrase
) {
371 // Preprocess the words
372 phrase
= mnemonic
.normalizeString(phrase
);
373 var words
= phraseToWordArray(phrase
);
374 // Detect blank phrase
375 if (words
.length
== 0) {
376 return "Blank mnemonic";
379 for (var i
=0; i
<words
.length
; i
++) {
381 var language
= getLanguage();
382 if (WORDLISTS
[language
].indexOf(word
) == -1) {
383 console
.log("Finding closest match to " + word
);
384 var nearestWord
= findNearestWord(word
);
385 return word
+ " not in wordlist, did you mean " + nearestWord
+ "?";
388 // Check the words are valid
389 var properPhrase
= wordArrayToPhrase(words
);
390 var isValid
= mnemonic
.check(properPhrase
);
392 return "Invalid mnemonic";
397 function validateRootKey(rootKeyBase58
) {
399 bitcoin
.HDNode
.fromBase58(rootKeyBase58
);
402 return "Invalid root key";
407 function getDerivationPath() {
408 if (bip44TabSelected()) {
409 var purpose
= parseIntNoNaN(DOM
.bip44purpose
.val(), 44);
410 var coin
= parseIntNoNaN(DOM
.bip44coin
.val(), 0);
411 var account
= parseIntNoNaN(DOM
.bip44account
.val(), 0);
412 var change
= parseIntNoNaN(DOM
.bip44change
.val(), 0);
414 path
+= purpose
+ "'/";
416 path
+= account
+ "'/";
418 DOM
.bip44path
.val(path
);
419 var derivationPath
= DOM
.bip44path
.val();
420 console
.log("Using derivation path from BIP44 tab: " + derivationPath
);
421 return derivationPath
;
423 else if (bip32TabSelected()) {
424 var derivationPath
= DOM
.bip32path
.val();
425 console
.log("Using derivation path from BIP32 tab: " + derivationPath
);
426 return derivationPath
;
429 console
.log("Unknown derivation path");
433 function findDerivationPathErrors(path
) {
434 // TODO is not perfect but is better than nothing
436 // https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki#test-vectors
438 // https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki#extended-keys
439 var maxDepth
= 255; // TODO verify this!!
440 var maxIndexValue
= Math
.pow(2, 31); // TODO verify this!!
441 if (path
[0] != "m") {
442 return "First character must be 'm'";
444 if (path
.length
> 1) {
445 if (path
[1] != "/") {
446 return "Separator must be '/'";
448 var indexes
= path
.split("/");
449 if (indexes
.length
> maxDepth
) {
450 return "Derivation depth is " + indexes
.length
+ ", must be less than " + maxDepth
;
452 for (var depth
= 1; depth
<indexes
.length
; depth
++) {
453 var index
= indexes
[depth
];
454 var invalidChars
= index
.replace(/^[0-9]+'?$/g, "")
455 if (invalidChars
.length
> 0) {
456 return "Invalid characters " + invalidChars
+ " found at depth " + depth
;
458 var indexValue
= parseInt(index
.replace("'", ""));
460 return "Invalid number at depth " + depth
;
462 if (indexValue
> maxIndexValue
) {
463 return "Value of " + indexValue
+ " at depth " + depth
+ " must be less than " + maxIndexValue
;
467 // Check root key exists or else derivation path is useless!
469 return "No root key";
471 // Check no hardened derivation path when using xpub keys
472 var hardened
= path
.indexOf("'") > -1;
473 var isXpubkey
= !("privKey" in bip32RootKey
);
474 if (hardened
&& isXpubkey
) {
475 return "Hardened derivation path is invalid with xpub key";
480 function displayBip44Info() {
481 // Get the derivation path for the account
482 var purpose
= parseIntNoNaN(DOM
.bip44purpose
.val(), 44);
483 var coin
= parseIntNoNaN(DOM
.bip44coin
.val(), 0);
484 var account
= parseIntNoNaN(DOM
.bip44account
.val(), 0);
486 path
+= purpose
+ "'/";
488 path
+= account
+ "'/";
489 // Calculate the account extended keys
490 var accountExtendedKey
= calcBip32ExtendedKey(path
);
491 var accountXprv
= accountExtendedKey
.toBase58();
492 var accountXpub
= accountExtendedKey
.toBase58(false);
493 // Display the extended keys
494 DOM
.bip44accountXprv
.val(accountXprv
);
495 DOM
.bip44accountXpub
.val(accountXpub
);
498 function displayBip32Info() {
501 var rootKey
= bip32RootKey
.toBase58();
502 DOM
.rootKey
.val(rootKey
);
503 var xprvkeyB58
= "NA";
504 if (bip32ExtendedKey
.privKey
) {
505 xprvkeyB58
= bip32ExtendedKey
.toBase58();
507 var extendedPrivKey
= xprvkeyB58
;
508 DOM
.extendedPrivKey
.val(extendedPrivKey
);
509 var extendedPubKey
= bip32ExtendedKey
.toBase58(false);
510 DOM
.extendedPubKey
.val(extendedPubKey
);
511 // Display the addresses and privkeys
512 clearAddressesList();
513 displayAddresses(0, 20);
516 function displayAddresses(start
, total
) {
517 generationProcesses
.push(new (function() {
521 this.stop = function() {
522 for (var i
=0; i
<rows
.length
; i
++) {
523 rows
[i
].shouldGenerate
= false;
527 for (var i
=0; i
<total
; i
++) {
528 var index
= i
+ start
;
529 rows
.push(new TableRow(index
));
535 function TableRow(index
) {
538 this.shouldGenerate
= true;
539 var useHardenedAddresses
= DOM
.hardenedAddresses
.prop("checked");
545 function calculateValues() {
546 setTimeout(function() {
547 if (!self
.shouldGenerate
) {
551 if (useHardenedAddresses
) {
552 key
= bip32ExtendedKey
.deriveHardened(index
);
555 key
= bip32ExtendedKey
.derive(index
);
557 var address
= key
.getAddress().toString();
560 privkey
= key
.privKey
.toWIF(network
);
562 var pubkey
= key
.pubKey
.toHex();
563 var indexText
= getDerivationPath() + "/" + index
;
564 if (useHardenedAddresses
) {
565 indexText
= indexText
+ "'";
567 // Ethereum values are different
568 if (networks
[DOM
.network
.val()].name
== "Ethereum") {
569 var privKeyBuffer
= key
.privKey
.d
.toBuffer();
570 privkey
= privKeyBuffer
.toString('hex');
571 var addressBuffer
= ethUtil
.privateToAddress(privKeyBuffer
);
572 var hexAddress
= addressBuffer
.toString('hex');
573 var checksumAddress
= ethUtil
.toChecksumAddress(hexAddress
);
574 address
= ethUtil
.addHexPrefix(checksumAddress
);
576 addAddressToList(indexText
, address
, pubkey
, privkey
);
584 function showMore() {
585 var start
= DOM
.addresses
.children().length
;
586 var rowsToAdd
= parseInt(DOM
.rowsToAdd
.val());
587 if (isNaN(rowsToAdd
)) {
589 DOM
.rowsToAdd
.val("20");
591 if (rowsToAdd
> 200) {
592 var msg
= "Generating " + rowsToAdd
+ " rows could take a while. ";
593 msg
+= "Do you want to continue?";
598 displayAddresses(start
, rowsToAdd
);
601 function clearDisplay() {
602 clearAddressesList();
604 hideValidationError();
607 function clearAddressesList() {
608 DOM
.addresses
.empty();
612 function stopGenerating() {
613 while (generationProcesses
.length
> 0) {
614 var generation
= generationProcesses
.shift();
619 function clearKey() {
621 DOM
.extendedPrivKey
.val("");
622 DOM
.extendedPubKey
.val("");
625 function addAddressToList(indexText
, address
, pubkey
, privkey
) {
626 var row
= $(addressRowTemplate
.html());
628 var indexCell
= row
.find(".index span");
629 var addressCell
= row
.find(".address span");
630 var pubkeyCell
= row
.find(".pubkey span");
631 var privkeyCell
= row
.find(".privkey span");
633 indexCell
.text(indexText
);
634 addressCell
.text(address
);
635 pubkeyCell
.text(pubkey
);
636 privkeyCell
.text(privkey
);
639 indexCell
.addClass("invisible");
642 addressCell
.addClass("invisible");
645 pubkeyCell
.addClass("invisible");
648 privkeyCell
.addClass("invisible");
650 DOM
.addresses
.append(row
);
651 var rowShowQrEls
= row
.find("[data-show-qr]");
652 setQrEvents(rowShowQrEls
);
655 function hasStrongRandom() {
656 return 'crypto' in window
&& window
['crypto'] !== null;
659 function disableForms() {
660 $("form").on("submit", function(e
) {
665 function parseIntNoNaN(val
, defaultVal
) {
666 var v
= parseInt(val
);
673 function showPending() {
675 .text("Calculating...")
679 function findNearestWord(word
) {
680 var language
= getLanguage();
681 var words
= WORDLISTS
[language
];
682 var minDistance
= 99;
683 var closestWord
= words
[0];
684 for (var i
=0; i
<words
.length
; i
++) {
685 var comparedTo
= words
[i
];
686 if (comparedTo
.indexOf(word
) == 0) {
689 var distance
= Levenshtein
.get(word
, comparedTo
);
690 if (distance
< minDistance
) {
691 closestWord
= comparedTo
;
692 minDistance
= distance
;
698 function hidePending() {
704 function populateNetworkSelect() {
705 for (var i
=0; i
<networks
.length
; i
++) {
706 var network
= networks
[i
];
707 var option
= $("<option>");
708 option
.attr("value", i
);
709 option
.text(network
.name
);
710 DOM
.phraseNetwork
.append(option
);
714 function getLanguage() {
715 var defaultLanguage
= "english";
716 // Try to get from existing phrase
717 var language
= getLanguageFromPhrase();
718 // Try to get from url if not from phrase
719 if (language
.length
== 0) {
720 language
= getLanguageFromUrl();
722 // Default to English if no other option
723 if (language
.length
== 0) {
724 language
= defaultLanguage
;
729 function getLanguageFromPhrase(phrase
) {
730 // Check if how many words from existing phrase match a language.
733 phrase
= DOM
.phrase
.val();
735 if (phrase
.length
> 0) {
736 var words
= phraseToWordArray(phrase
);
737 var languageMatches
= {};
738 for (l
in WORDLISTS
) {
739 // Track how many words match in this language
740 languageMatches
[l
] = 0;
741 for (var i
=0; i
<words
.length
; i
++) {
742 var wordInLanguage
= WORDLISTS
[l
].indexOf(words
[i
]) > -1;
743 if (wordInLanguage
) {
744 languageMatches
[l
]++;
747 // Find languages with most word matches.
748 // This is made difficult due to commonalities between Chinese
749 // simplified vs traditional.
751 var mostMatchedLanguages
= [];
752 for (var l
in languageMatches
) {
753 var numMatches
= languageMatches
[l
];
754 if (numMatches
> mostMatches
) {
755 mostMatches
= numMatches
;
756 mostMatchedLanguages
= [l
];
758 else if (numMatches
== mostMatches
) {
759 mostMatchedLanguages
.push(l
);
763 if (mostMatchedLanguages
.length
> 0) {
764 // Use first language and warn if multiple detected
765 language
= mostMatchedLanguages
[0];
766 if (mostMatchedLanguages
.length
> 1) {
767 console
.warn("Multiple possible languages");
768 console
.warn(mostMatchedLanguages
);
775 function getLanguageFromUrl() {
776 for (var language
in WORDLISTS
) {
777 if (window
.location
.hash
.indexOf(language
) > -1) {
784 function setMnemonicLanguage() {
785 var language
= getLanguage();
786 // Load the bip39 mnemonic generator for this language if required
787 if (!(language
in mnemonics
)) {
788 mnemonics
[language
] = new Mnemonic(language
);
790 mnemonic
= mnemonics
[language
];
793 function convertPhraseToNewLanguage() {
794 var oldLanguage
= getLanguageFromPhrase();
795 var newLanguage
= getLanguageFromUrl();
796 var oldPhrase
= DOM
.phrase
.val();
797 var oldWords
= phraseToWordArray(oldPhrase
);
799 for (var i
=0; i
<oldWords
.length
; i
++) {
800 var oldWord
= oldWords
[i
];
801 var index
= WORDLISTS
[oldLanguage
].indexOf(oldWord
);
802 var newWord
= WORDLISTS
[newLanguage
][index
];
803 newWords
.push(newWord
);
805 newPhrase
= wordArrayToPhrase(newWords
);
809 // TODO look at jsbip39 - mnemonic.splitWords
810 function phraseToWordArray(phrase
) {
811 var words
= phrase
.split(/\s/g);
813 for (var i
=0; i
<words
.length
; i
++) {
815 if (word
.length
> 0) {
822 // TODO look at jsbip39 - mnemonic.joinWords
823 function wordArrayToPhrase(words
) {
824 var phrase
= words
.join(" ");
825 var language
= getLanguageFromPhrase(phrase
);
826 if (language
== "japanese") {
827 phrase
= words
.join("\u3000");
832 function isUsingOwnEntropy() {
833 return DOM
.useEntropy
.prop("checked");
836 function setMnemonicFromEntropy() {
837 clearEntropyFeedback();
839 var entropyStr
= DOM
.entropy
.val();
840 // Work out minimum base for entropy
841 var entropy
= Entropy
.fromString(entropyStr
);
842 if (entropy
.binaryStr
.length
== 0) {
845 // Show entropy details
846 showEntropyFeedback(entropy
);
847 // Use entropy hash if not using raw entropy
848 var bits
= entropy
.binaryStr
;
849 var mnemonicLength
= DOM
.entropyMnemonicLength
.val();
850 if (mnemonicLength
!= "raw") {
851 // Get bits by hashing entropy with SHA256
852 var hash
= sjcl
.hash
.sha256
.hash(entropy
.cleanStr
);
853 var hex
= sjcl
.codec
.hex
.fromBits(hash
);
854 bits
= BigInteger
.parse(hex
, 16).toString(2);
855 while (bits
.length
% 256 != 0) {
858 // Truncate hash to suit number of words
859 mnemonicLength
= parseInt(mnemonicLength
);
860 var numberOfBits
= 32 * mnemonicLength
/ 3;
861 bits
= bits
.substring(0, numberOfBits
);
863 // Discard trailing entropy
864 var bitsToUse
= Math
.floor(bits
.length
/ 32) * 32;
865 var start
= bits
.length
- bitsToUse
;
866 var binaryStr
= bits
.substring(start
);
867 // Convert entropy string to numeric array
869 for (var i
=0; i
<binaryStr
.length
/ 8; i
++) {
870 var byteAsBits
= binaryStr
.substring(i
*8, i
*8+8);
871 var entropyByte
= parseInt(byteAsBits
, 2);
872 entropyArr
.push(entropyByte
)
874 // Convert entropy array to mnemonic
875 var phrase
= mnemonic
.toMnemonic(entropyArr
);
876 // Set the mnemonic in the UI
877 DOM
.phrase
.val(phrase
);
880 function clearEntropyFeedback() {
881 DOM
.entropyStrength
.text("...");
882 DOM
.entropyType
.text("");
883 DOM
.entropyWordCount
.text("0");
884 DOM
.entropyEventCount
.text("0");
885 DOM
.entropyBitsPerEvent
.text("0");
886 DOM
.entropyBits
.text("0");
887 DOM
.entropyFiltered
.html(" ");
888 DOM
.entropyBinary
.html(" ");
891 function showEntropyFeedback(entropy
) {
892 var numberOfBits
= entropy
.binaryStr
.length
;
893 var strength
= "extremely weak";
894 if (numberOfBits
>= 64) {
895 strength
= "very weak";
897 if (numberOfBits
>= 96) {
900 if (numberOfBits
>= 128) {
903 if (numberOfBits
>= 160) {
904 strength
= "very strong";
906 if (numberOfBits
>= 192) {
907 strength
= "extremely strong";
909 // If time to crack is less than one day, and password is considered
910 // strong or better based on the number of bits, rename strength to
913 var z
= zxcvbn(entropy
.base
.parts
.join(""));
914 var timeToCrack
= z
.crack_times_seconds
.offline_fast_hashing_1e10_per_second
;
915 if (timeToCrack
< 86400 && entropy
.binaryStr
.length
>= 128) {
916 strength
= "easily cracked";
917 if (z
.feedback
.warning
!= "") {
918 strength
= strength
+ " - " + z
.feedback
.warning
;
923 strength
= "unknown";
924 console
.log("Error detecting entropy strength with zxcvbn:");
927 var entropyTypeStr
= getEntropyTypeStr(entropy
);
928 var wordCount
= Math
.floor(numberOfBits
/ 32) * 3;
929 var bitsPerEvent
= entropy
.bitsPerEvent
.toFixed(2);
930 DOM
.entropyFiltered
.html(entropy
.cleanHtml
);
931 DOM
.entropyType
.text(entropyTypeStr
);
932 DOM
.entropyStrength
.text(strength
);
933 DOM
.entropyEventCount
.text(entropy
.base
.ints
.length
);
934 DOM
.entropyBits
.text(numberOfBits
);
935 DOM
.entropyWordCount
.text(wordCount
);
936 DOM
.entropyBinary
.text(entropy
.binaryStr
);
937 DOM
.entropyBitsPerEvent
.text(bitsPerEvent
);
940 function getEntropyTypeStr(entropy
) {
941 var typeStr
= entropy
.base
.str
;
942 // Add some detail if these are cards
943 if (entropy
.base
.asInt
== 52) {
944 var cardDetail
= []; // array of message strings
947 var dupeTracker
= {};
948 for (var i
=0; i
<entropy
.base
.parts
.length
; i
++) {
949 var card
= entropy
.base
.parts
[i
];
950 var cardUpper
= card
.toUpperCase();
951 if (cardUpper
in dupeTracker
) {
954 dupeTracker
[cardUpper
] = true;
956 if (dupes
.length
> 0) {
957 var dupeWord
= "duplicates";
958 if (dupes
.length
== 1) {
959 dupeWord
= "duplicate";
961 var msg
= dupes
.length
+ " " + dupeWord
+ ": " + dupes
.slice(0,3).join(" ");
962 if (dupes
.length
> 3) {
965 cardDetail
.push(msg
);
968 var uniqueCards
= [];
969 for (var uniqueCard
in dupeTracker
) {
970 uniqueCards
.push(uniqueCard
);
972 if (uniqueCards
.length
== 52) {
973 cardDetail
.unshift("full deck");
975 // Detect missing cards
976 var values
= "A23456789TJQK";
978 var missingCards
= [];
979 for (var i
=0; i
<suits
.length
; i
++) {
980 for (var j
=0; j
<values
.length
; j
++) {
981 var card
= values
[j
] + suits
[i
];
982 if (!(card
in dupeTracker
)) {
983 missingCards
.push(card
);
987 // Display missing cards if six or less, ie clearly going for full deck
988 if (missingCards
.length
> 0 && missingCards
.length
<= 6) {
989 var msg
= missingCards
.length
+ " missing: " + missingCards
.slice(0,3).join(" ");
990 if (missingCards
.length
> 3) {
993 cardDetail
.push(msg
);
995 // Add card details to typeStr
996 if (cardDetail
.length
> 0) {
997 typeStr
+= " (" + cardDetail
.join(", ") + ")";
1003 function setQrEvents(els
) {
1004 els
.on("mouseenter", createQr
);
1005 els
.on("mouseleave", destroyQr
);
1006 els
.on("click", toggleQr
);
1009 function createQr(e
) {
1010 var content
= e
.target
.textContent
|| e
.target
.value
;
1013 DOM
.qrImage
.qrcode({width: size
, height: size
, text: content
});
1015 DOM
.qrHider
.addClass("hidden");
1018 DOM
.qrHider
.removeClass("hidden");
1020 DOM
.qrContainer
.removeClass("hidden");
1024 function destroyQr() {
1025 DOM
.qrImage
.text("");
1026 DOM
.qrContainer
.addClass("hidden");
1029 function toggleQr() {
1031 DOM
.qrHider
.toggleClass("hidden");
1032 DOM
.qrHint
.toggleClass("hidden");
1035 function bip44TabSelected() {
1036 return DOM
.bip44tab
.hasClass("active");
1039 function bip32TabSelected() {
1040 return DOM
.bip32tab
.hasClass("active");
1046 onSelect: function() {
1047 network
= bitcoin
.networks
.bitcoin
;
1048 DOM
.bip44coin
.val(0);
1052 name: "Bitcoin Testnet",
1053 onSelect: function() {
1054 network
= bitcoin
.networks
.testnet
;
1055 DOM
.bip44coin
.val(1);
1060 onSelect: function() {
1061 network
= bitcoin
.networks
.litecoin
;
1062 DOM
.bip44coin
.val(2);
1067 onSelect: function() {
1068 network
= bitcoin
.networks
.dogecoin
;
1069 DOM
.bip44coin
.val(3);
1074 onSelect: function() {
1075 network
= bitcoin
.networks
.shadow
;
1076 DOM
.bip44coin
.val(35);
1080 name: "ShadowCash Testnet",
1081 onSelect: function() {
1082 network
= bitcoin
.networks
.shadowtn
;
1083 DOM
.bip44coin
.val(1);
1088 onSelect: function() {
1089 network
= bitcoin
.networks
.viacoin
;
1090 DOM
.bip44coin
.val(14);
1094 name: "Viacoin Testnet",
1095 onSelect: function() {
1096 network
= bitcoin
.networks
.viacointestnet
;
1097 DOM
.bip44coin
.val(1);
1102 onSelect: function() {
1103 network
= bitcoin
.networks
.jumbucks
;
1104 DOM
.bip44coin
.val(26);
1109 onSelect: function() {
1110 network
= bitcoin
.networks
.clam
;
1111 DOM
.bip44coin
.val(23);
1116 onSelect: function() {
1117 network
= bitcoin
.networks
.dash
;
1118 DOM
.bip44coin
.val(5);
1123 onSelect: function() {
1124 network
= bitcoin
.networks
.namecoin
;
1125 DOM
.bip44coin
.val(7);
1130 onSelect: function() {
1131 network
= bitcoin
.networks
.peercoin
;
1132 DOM
.bip44coin
.val(6);
1137 onSelect: function() {
1138 network
= bitcoin
.networks
.bitcoin
;
1139 DOM
.bip44coin
.val(60);