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;
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
.bip44accountXprv
= $("#bip44 .account-xprv");
55 DOM
.bip44accountXpub
= $("#bip44 .account-xpub");
56 DOM
.bip44change
= $("#bip44 .change");
57 DOM
.generatedStrength
= $(".generate-container .strength");
58 DOM
.hardenedAddresses
= $(".hardened-addresses");
59 DOM
.addresses
= $(".addresses");
60 DOM
.rowsToAdd
= $(".rows-to-add");
61 DOM
.more
= $(".more");
62 DOM
.feedback
= $(".feedback");
63 DOM
.tab
= $(".derivation-type a");
64 DOM
.indexToggle
= $(".index-toggle");
65 DOM
.addressToggle
= $(".address-toggle");
66 DOM
.publicKeyToggle
= $(".public-key-toggle");
67 DOM
.privateKeyToggle
= $(".private-key-toggle");
68 DOM
.languages
= $(".languages a");
69 DOM
.qrContainer
= $(".qr-container");
70 DOM
.qrHider
= DOM
.qrContainer
.find(".qr-hider");
71 DOM
.qrImage
= DOM
.qrContainer
.find(".qr-image");
72 DOM
.qrHint
= DOM
.qrContainer
.find(".qr-hint");
73 DOM
.showQrEls
= $("[data-show-qr]");
77 DOM
.network
.on("change", networkChanged
);
78 DOM
.useEntropy
.on("change", setEntropyVisibility
);
79 DOM
.entropy
.on("input", delayedEntropyChanged
);
80 DOM
.entropyMnemonicLength
.on("change", entropyChanged
);
81 DOM
.phrase
.on("input", delayedPhraseChanged
);
82 DOM
.passphrase
.on("input", delayedPhraseChanged
);
83 DOM
.generate
.on("click", generateClicked
);
84 DOM
.more
.on("click", showMore
);
85 DOM
.rootKey
.on("input", delayedRootKeyChanged
);
86 DOM
.bip32path
.on("input", calcForDerivationPath
);
87 DOM
.bip44purpose
.on("input", calcForDerivationPath
);
88 DOM
.bip44coin
.on("input", calcForDerivationPath
);
89 DOM
.bip44account
.on("input", calcForDerivationPath
);
90 DOM
.bip44change
.on("input", calcForDerivationPath
);
91 DOM
.tab
.on("shown.bs.tab", calcForDerivationPath
);
92 DOM
.hardenedAddresses
.on("change", calcForDerivationPath
);
93 DOM
.indexToggle
.on("click", toggleIndexes
);
94 DOM
.addressToggle
.on("click", toggleAddresses
);
95 DOM
.publicKeyToggle
.on("click", togglePublicKeys
);
96 DOM
.privateKeyToggle
.on("click", togglePrivateKeys
);
97 DOM
.languages
.on("click", languageChanged
);
98 setQrEvents(DOM
.showQrEls
);
101 hideValidationError();
102 populateNetworkSelect();
107 function networkChanged(e
) {
108 var networkIndex
= e
.target
.value
;
109 networks
[networkIndex
].onSelect();
118 function setEntropyVisibility() {
119 if (isUsingOwnEntropy()) {
120 DOM
.entropyContainer
.removeClass("hidden");
121 DOM
.generateContainer
.addClass("hidden");
122 DOM
.phrase
.prop("readonly", true);
127 DOM
.entropyContainer
.addClass("hidden");
128 DOM
.generateContainer
.removeClass("hidden");
129 DOM
.phrase
.prop("readonly", false);
134 function delayedPhraseChanged() {
135 hideValidationError();
137 if (phraseChangeTimeoutEvent
!= null) {
138 clearTimeout(phraseChangeTimeoutEvent
);
140 phraseChangeTimeoutEvent
= setTimeout(phraseChanged
, 400);
143 function phraseChanged() {
145 hideValidationError();
146 setMnemonicLanguage();
147 // Get the mnemonic phrase
148 var phrase
= DOM
.phrase
.val();
149 var errorText
= findPhraseErrors(phrase
);
151 showValidationError(errorText
);
154 // Calculate and display
155 var passphrase
= DOM
.passphrase
.val();
156 calcBip32RootKeyFromSeed(phrase
, passphrase
);
157 calcForDerivationPath();
161 function delayedEntropyChanged() {
162 hideValidationError();
164 if (entropyChangeTimeoutEvent
!= null) {
165 clearTimeout(entropyChangeTimeoutEvent
);
167 entropyChangeTimeoutEvent
= setTimeout(entropyChanged
, 400);
170 function entropyChanged() {
171 // If blank entropy, clear mnemonic, addresses, errors
172 if (DOM
.entropy
.val().trim().length
== 0) {
174 clearEntropyFeedback();
176 showValidationError("Blank entropy");
179 // Get the current phrase to detect changes
180 var phrase
= DOM
.phrase
.val();
181 // Set the phrase from the entropy
182 setMnemonicFromEntropy();
183 // Recalc addresses if the phrase has changed
184 var newPhrase
= DOM
.phrase
.val();
185 if (newPhrase
!= phrase
) {
186 if (newPhrase
.length
== 0) {
198 function delayedRootKeyChanged() {
199 // Warn if there is an existing mnemonic or passphrase.
200 if (DOM
.phrase
.val().length
> 0 || DOM
.passphrase
.val().length
> 0) {
201 if (!confirm("This will clear existing mnemonic and passphrase")) {
202 DOM
.rootKey
.val(bip32RootKey
);
206 hideValidationError();
208 // Clear existing mnemonic and passphrase
210 DOM
.passphrase
.val("");
212 if (rootKeyChangedTimeoutEvent
!= null) {
213 clearTimeout(rootKeyChangedTimeoutEvent
);
215 rootKeyChangedTimeoutEvent
= setTimeout(rootKeyChanged
, 400);
218 function rootKeyChanged() {
220 hideValidationError();
221 // Validate the root key TODO
222 var rootKeyBase58
= DOM
.rootKey
.val();
223 var errorText
= validateRootKey(rootKeyBase58
);
225 showValidationError(errorText
);
228 // Calculate and display
229 calcBip32RootKeyFromBase58(rootKeyBase58
);
230 calcForDerivationPath();
233 function calcForDerivationPath() {
235 clearAddressesList();
236 hideValidationError();
237 // Get the derivation path
238 var derivationPath
= getDerivationPath();
239 var errorText
= findDerivationPathErrors(derivationPath
);
241 showValidationError(errorText
);
244 bip32ExtendedKey
= calcBip32ExtendedKey(derivationPath
);
245 if (bip44TabSelected()) {
252 function generateClicked() {
253 if (isUsingOwnEntropy()) {
258 setTimeout(function() {
259 setMnemonicLanguage();
260 var phrase
= generateRandomPhrase();
268 function languageChanged() {
269 setTimeout(function() {
270 setMnemonicLanguage();
271 if (DOM
.phrase
.val().length
> 0) {
272 var newPhrase
= convertPhraseToNewLanguage();
273 DOM
.phrase
.val(newPhrase
);
277 DOM
.generate
.trigger("click");
282 function toggleIndexes() {
283 showIndex
= !showIndex
;
284 $("td.index span").toggleClass("invisible");
287 function toggleAddresses() {
288 showAddress
= !showAddress
;
289 $("td.address span").toggleClass("invisible");
292 function togglePublicKeys() {
293 showPubKey
= !showPubKey
;
294 $("td.pubkey span").toggleClass("invisible");
297 function togglePrivateKeys() {
298 showPrivKey
= !showPrivKey
;
299 $("td.privkey span").toggleClass("invisible");
304 function generateRandomPhrase() {
305 if (!hasStrongRandom()) {
306 var errorText
= "This browser does not support strong randomness";
307 showValidationError(errorText
);
310 var numWords
= parseInt(DOM
.generatedStrength
.val());
311 var strength
= numWords
/ 3 * 32;
312 var words
= mnemonic
.generate(strength
);
313 DOM
.phrase
.val(words
);
317 function calcBip32RootKeyFromSeed(phrase
, passphrase
) {
318 seed
= mnemonic
.toSeed(phrase
, passphrase
);
319 bip32RootKey
= bitcoin
.HDNode
.fromSeedHex(seed
, network
);
322 function calcBip32RootKeyFromBase58(rootKeyBase58
) {
323 bip32RootKey
= bitcoin
.HDNode
.fromBase58(rootKeyBase58
, network
);
326 function calcBip32ExtendedKey(path
) {
327 var extendedKey
= bip32RootKey
;
328 // Derive the key from the path
329 var pathBits
= path
.split("/");
330 for (var i
=0; i
<pathBits
.length
; i
++) {
331 var bit
= pathBits
[i
];
332 var index
= parseInt(bit
);
336 var hardened
= bit
[bit
.length
-1] == "'";
337 var isPriv
= "privKey" in extendedKey
;
338 var invalidDerivationPath
= hardened
&& !isPriv
;
339 if (invalidDerivationPath
) {
343 extendedKey
= extendedKey
.deriveHardened(index
);
346 extendedKey
= extendedKey
.derive(index
);
352 function showValidationError(errorText
) {
358 function hideValidationError() {
364 function findPhraseErrors(phrase
) {
365 // Preprocess the words
366 phrase
= mnemonic
.normalizeString(phrase
);
367 var words
= phraseToWordArray(phrase
);
368 // Detect blank phrase
369 if (words
.length
== 0) {
370 return "Blank mnemonic";
373 for (var i
=0; i
<words
.length
; i
++) {
375 var language
= getLanguage();
376 if (WORDLISTS
[language
].indexOf(word
) == -1) {
377 console
.log("Finding closest match to " + word
);
378 var nearestWord
= findNearestWord(word
);
379 return word
+ " not in wordlist, did you mean " + nearestWord
+ "?";
382 // Check the words are valid
383 var properPhrase
= wordArrayToPhrase(words
);
384 var isValid
= mnemonic
.check(properPhrase
);
386 return "Invalid mnemonic";
391 function validateRootKey(rootKeyBase58
) {
393 bitcoin
.HDNode
.fromBase58(rootKeyBase58
);
396 return "Invalid root key";
401 function getDerivationPath() {
402 if (bip44TabSelected()) {
403 var purpose
= parseIntNoNaN(DOM
.bip44purpose
.val(), 44);
404 var coin
= parseIntNoNaN(DOM
.bip44coin
.val(), 0);
405 var account
= parseIntNoNaN(DOM
.bip44account
.val(), 0);
406 var change
= parseIntNoNaN(DOM
.bip44change
.val(), 0);
408 path
+= purpose
+ "'/";
410 path
+= account
+ "'/";
412 DOM
.bip44path
.val(path
);
413 var derivationPath
= DOM
.bip44path
.val();
414 console
.log("Using derivation path from BIP44 tab: " + derivationPath
);
415 return derivationPath
;
417 else if (bip32TabSelected()) {
418 var derivationPath
= DOM
.bip32path
.val();
419 console
.log("Using derivation path from BIP32 tab: " + derivationPath
);
420 return derivationPath
;
423 console
.log("Unknown derivation path");
427 function findDerivationPathErrors(path
) {
428 // TODO is not perfect but is better than nothing
430 // https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki#test-vectors
432 // https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki#extended-keys
433 var maxDepth
= 255; // TODO verify this!!
434 var maxIndexValue
= Math
.pow(2, 31); // TODO verify this!!
435 if (path
[0] != "m") {
436 return "First character must be 'm'";
438 if (path
.length
> 1) {
439 if (path
[1] != "/") {
440 return "Separator must be '/'";
442 var indexes
= path
.split("/");
443 if (indexes
.length
> maxDepth
) {
444 return "Derivation depth is " + indexes
.length
+ ", must be less than " + maxDepth
;
446 for (var depth
= 1; depth
<indexes
.length
; depth
++) {
447 var index
= indexes
[depth
];
448 var invalidChars
= index
.replace(/^[0-9]+'?$/g, "")
449 if (invalidChars
.length
> 0) {
450 return "Invalid characters " + invalidChars
+ " found at depth " + depth
;
452 var indexValue
= parseInt(index
.replace("'", ""));
454 return "Invalid number at depth " + depth
;
456 if (indexValue
> maxIndexValue
) {
457 return "Value of " + indexValue
+ " at depth " + depth
+ " must be less than " + maxIndexValue
;
461 // Check no hardened derivation path when using xpub keys
462 var hardened
= path
.indexOf("'") > -1;
463 var isXpubkey
= !("privKey" in bip32RootKey
);
464 if (hardened
&& isXpubkey
) {
465 return "Hardened derivation path is invalid with xpub key";
470 function displayBip44Info() {
471 // Get the derivation path for the account
472 var purpose
= parseIntNoNaN(DOM
.bip44purpose
.val(), 44);
473 var coin
= parseIntNoNaN(DOM
.bip44coin
.val(), 0);
474 var account
= parseIntNoNaN(DOM
.bip44account
.val(), 0);
476 path
+= purpose
+ "'/";
478 path
+= account
+ "'/";
479 // Calculate the account extended keys
480 var accountExtendedKey
= calcBip32ExtendedKey(path
);
481 var accountXprv
= accountExtendedKey
.toBase58();
482 var accountXpub
= accountExtendedKey
.toBase58(false);
483 // Display the extended keys
484 DOM
.bip44accountXprv
.val(accountXprv
);
485 DOM
.bip44accountXpub
.val(accountXpub
);
488 function displayBip32Info() {
491 var rootKey
= bip32RootKey
.toBase58();
492 DOM
.rootKey
.val(rootKey
);
493 var xprvkeyB58
= "NA";
494 if (bip32ExtendedKey
.privKey
) {
495 xprvkeyB58
= bip32ExtendedKey
.toBase58();
497 var extendedPrivKey
= xprvkeyB58
;
498 DOM
.extendedPrivKey
.val(extendedPrivKey
);
499 var extendedPubKey
= bip32ExtendedKey
.toBase58(false);
500 DOM
.extendedPubKey
.val(extendedPubKey
);
501 // Display the addresses and privkeys
502 clearAddressesList();
503 displayAddresses(0, 20);
506 function displayAddresses(start
, total
) {
507 for (var i
=0; i
<total
; i
++) {
508 var index
= i
+ start
;
513 function TableRow(index
) {
515 var useHardenedAddresses
= DOM
.hardenedAddresses
.prop("checked");
521 function calculateValues() {
522 setTimeout(function() {
524 if (useHardenedAddresses
) {
525 key
= bip32ExtendedKey
.deriveHardened(index
);
528 key
= bip32ExtendedKey
.derive(index
);
530 var address
= key
.getAddress().toString();
533 privkey
= key
.privKey
.toWIF(network
);
535 var pubkey
= key
.pubKey
.toHex();
536 var indexText
= getDerivationPath() + "/" + index
;
537 if (useHardenedAddresses
) {
538 indexText
= indexText
+ "'";
540 addAddressToList(indexText
, address
, pubkey
, privkey
);
548 function showMore() {
549 var start
= DOM
.addresses
.children().length
;
550 var rowsToAdd
= parseInt(DOM
.rowsToAdd
.val());
551 if (isNaN(rowsToAdd
)) {
553 DOM
.rowsToAdd
.val("20");
555 if (rowsToAdd
> 200) {
556 var msg
= "Generating " + rowsToAdd
+ " rows could take a while. ";
557 msg
+= "Do you want to continue?";
562 displayAddresses(start
, rowsToAdd
);
565 function clearDisplay() {
566 clearAddressesList();
568 hideValidationError();
571 function clearAddressesList() {
572 DOM
.addresses
.empty();
575 function clearKey() {
577 DOM
.extendedPrivKey
.val("");
578 DOM
.extendedPubKey
.val("");
581 function addAddressToList(indexText
, address
, pubkey
, privkey
) {
582 var row
= $(addressRowTemplate
.html());
584 var indexCell
= row
.find(".index span");
585 var addressCell
= row
.find(".address span");
586 var pubkeyCell
= row
.find(".pubkey span");
587 var privkeyCell
= row
.find(".privkey span");
589 indexCell
.text(indexText
);
590 addressCell
.text(address
);
591 pubkeyCell
.text(pubkey
);
592 privkeyCell
.text(privkey
);
595 indexCell
.addClass("invisible");
598 addressCell
.addClass("invisible");
601 pubkeyCell
.addClass("invisible");
604 privkeyCell
.addClass("invisible");
606 DOM
.addresses
.append(row
);
607 var rowShowQrEls
= row
.find("[data-show-qr]");
608 setQrEvents(rowShowQrEls
);
611 function hasStrongRandom() {
612 return 'crypto' in window
&& window
['crypto'] !== null;
615 function disableForms() {
616 $("form").on("submit", function(e
) {
621 function parseIntNoNaN(val
, defaultVal
) {
622 var v
= parseInt(val
);
629 function showPending() {
631 .text("Calculating...")
635 function findNearestWord(word
) {
636 var language
= getLanguage();
637 var words
= WORDLISTS
[language
];
638 var minDistance
= 99;
639 var closestWord
= words
[0];
640 for (var i
=0; i
<words
.length
; i
++) {
641 var comparedTo
= words
[i
];
642 var distance
= Levenshtein
.get(word
, comparedTo
);
643 if (distance
< minDistance
) {
644 closestWord
= comparedTo
;
645 minDistance
= distance
;
651 function hidePending() {
657 function populateNetworkSelect() {
658 for (var i
=0; i
<networks
.length
; i
++) {
659 var network
= networks
[i
];
660 var option
= $("<option>");
661 option
.attr("value", i
);
662 option
.text(network
.name
);
663 DOM
.phraseNetwork
.append(option
);
667 function getLanguage() {
668 var defaultLanguage
= "english";
669 // Try to get from existing phrase
670 var language
= getLanguageFromPhrase();
671 // Try to get from url if not from phrase
672 if (language
.length
== 0) {
673 language
= getLanguageFromUrl();
675 // Default to English if no other option
676 if (language
.length
== 0) {
677 language
= defaultLanguage
;
682 function getLanguageFromPhrase(phrase
) {
683 // Check if how many words from existing phrase match a language.
686 phrase
= DOM
.phrase
.val();
688 if (phrase
.length
> 0) {
689 var words
= phraseToWordArray(phrase
);
690 var languageMatches
= {};
691 for (l
in WORDLISTS
) {
692 // Track how many words match in this language
693 languageMatches
[l
] = 0;
694 for (var i
=0; i
<words
.length
; i
++) {
695 var wordInLanguage
= WORDLISTS
[l
].indexOf(words
[i
]) > -1;
696 if (wordInLanguage
) {
697 languageMatches
[l
]++;
700 // Find languages with most word matches.
701 // This is made difficult due to commonalities between Chinese
702 // simplified vs traditional.
704 var mostMatchedLanguages
= [];
705 for (var l
in languageMatches
) {
706 var numMatches
= languageMatches
[l
];
707 if (numMatches
> mostMatches
) {
708 mostMatches
= numMatches
;
709 mostMatchedLanguages
= [l
];
711 else if (numMatches
== mostMatches
) {
712 mostMatchedLanguages
.push(l
);
716 if (mostMatchedLanguages
.length
> 0) {
717 // Use first language and warn if multiple detected
718 language
= mostMatchedLanguages
[0];
719 if (mostMatchedLanguages
.length
> 1) {
720 console
.warn("Multiple possible languages");
721 console
.warn(mostMatchedLanguages
);
728 function getLanguageFromUrl() {
729 for (var language
in WORDLISTS
) {
730 if (window
.location
.hash
.indexOf(language
) > -1) {
737 function setMnemonicLanguage() {
738 var language
= getLanguage();
739 // Load the bip39 mnemonic generator for this language if required
740 if (!(language
in mnemonics
)) {
741 mnemonics
[language
] = new Mnemonic(language
);
743 mnemonic
= mnemonics
[language
];
746 function convertPhraseToNewLanguage() {
747 var oldLanguage
= getLanguageFromPhrase();
748 var newLanguage
= getLanguageFromUrl();
749 var oldPhrase
= DOM
.phrase
.val();
750 var oldWords
= phraseToWordArray(oldPhrase
);
752 for (var i
=0; i
<oldWords
.length
; i
++) {
753 var oldWord
= oldWords
[i
];
754 var index
= WORDLISTS
[oldLanguage
].indexOf(oldWord
);
755 var newWord
= WORDLISTS
[newLanguage
][index
];
756 newWords
.push(newWord
);
758 newPhrase
= wordArrayToPhrase(newWords
);
762 // TODO look at jsbip39 - mnemonic.splitWords
763 function phraseToWordArray(phrase
) {
764 var words
= phrase
.split(/\s/g);
766 for (var i
=0; i
<words
.length
; i
++) {
768 if (word
.length
> 0) {
775 // TODO look at jsbip39 - mnemonic.joinWords
776 function wordArrayToPhrase(words
) {
777 var phrase
= words
.join(" ");
778 var language
= getLanguageFromPhrase(phrase
);
779 if (language
== "japanese") {
780 phrase
= words
.join("\u3000");
785 function isUsingOwnEntropy() {
786 return DOM
.useEntropy
.prop("checked");
789 function setMnemonicFromEntropy() {
790 clearEntropyFeedback();
792 var entropyStr
= DOM
.entropy
.val();
793 // Work out minimum base for entropy
794 var entropy
= Entropy
.fromString(entropyStr
);
795 if (entropy
.binaryStr
.length
== 0) {
798 // Show entropy details
799 showEntropyFeedback(entropy
);
800 // Use entropy hash if not using raw entropy
801 var bits
= entropy
.binaryStr
;
802 var mnemonicLength
= DOM
.entropyMnemonicLength
.val();
803 if (mnemonicLength
!= "raw") {
804 // Get bits by hashing entropy with SHA256
805 var hash
= sjcl
.hash
.sha256
.hash(entropy
.cleanStr
);
806 var hex
= sjcl
.codec
.hex
.fromBits(hash
);
807 bits
= BigInteger
.parse(hex
, 16).toString(2);
808 for (var i
=0; i
<256-bits
.length
; i
++) {
811 // Truncate hash to suit number of words
812 mnemonicLength
= parseInt(mnemonicLength
);
813 var numberOfBits
= 32 * mnemonicLength
/ 3;
814 bits
= bits
.substring(0, numberOfBits
);
816 // Discard trailing entropy
817 var bitsToUse
= Math
.floor(bits
.length
/ 32) * 32;
818 var start
= bits
.length
- bitsToUse
;
819 var binaryStr
= bits
.substring(start
);
820 // Convert entropy string to numeric array
822 for (var i
=0; i
<binaryStr
.length
/ 8; i
++) {
823 var byteAsBits
= binaryStr
.substring(i
*8, i
*8+8);
824 var entropyByte
= parseInt(byteAsBits
, 2);
825 entropyArr
.push(entropyByte
)
827 // Convert entropy array to mnemonic
828 var phrase
= mnemonic
.toMnemonic(entropyArr
);
829 // Set the mnemonic in the UI
830 DOM
.phrase
.val(phrase
);
833 function clearEntropyFeedback() {
834 DOM
.entropyStrength
.text("...");
835 DOM
.entropyType
.text("");
836 DOM
.entropyWordCount
.text("0");
837 DOM
.entropyEventCount
.text("0");
838 DOM
.entropyBitsPerEvent
.text("0");
839 DOM
.entropyBits
.text("0");
840 DOM
.entropyFiltered
.html(" ");
841 DOM
.entropyBinary
.html(" ");
844 function showEntropyFeedback(entropy
) {
845 var numberOfBits
= entropy
.binaryStr
.length
;
846 var strength
= "extremely weak";
847 if (numberOfBits
>= 64) {
848 strength
= "very weak";
850 if (numberOfBits
>= 96) {
853 if (numberOfBits
>= 128) {
856 if (numberOfBits
>= 160) {
857 strength
= "very strong";
859 if (numberOfBits
>= 192) {
860 strength
= "extremely strong";
862 // If time to crack is less than one day, and password is considered
863 // strong or better based on the number of bits, rename strength to
866 var z
= zxcvbn(entropy
.base
.parts
.join(""));
867 var timeToCrack
= z
.crack_times_seconds
.offline_fast_hashing_1e10_per_second
;
868 if (timeToCrack
< 86400 && entropy
.binaryStr
.length
>= 128) {
869 strength
= "easily cracked";
870 if (z
.feedback
.warning
!= "") {
871 strength
= strength
+ " - " + z
.feedback
.warning
;
876 strength
= "unknown";
877 console
.log("Error detecting entropy strength with zxcvbn:");
880 var entropyTypeStr
= getEntropyTypeStr(entropy
);
881 var wordCount
= Math
.floor(numberOfBits
/ 32) * 3;
882 var bitsPerEvent
= entropy
.bitsPerEvent
.toFixed(2);
883 DOM
.entropyFiltered
.html(entropy
.cleanHtml
);
884 DOM
.entropyType
.text(entropyTypeStr
);
885 DOM
.entropyStrength
.text(strength
);
886 DOM
.entropyEventCount
.text(entropy
.base
.ints
.length
);
887 DOM
.entropyBits
.text(numberOfBits
);
888 DOM
.entropyWordCount
.text(wordCount
);
889 DOM
.entropyBinary
.text(entropy
.binaryStr
);
890 DOM
.entropyBitsPerEvent
.text(bitsPerEvent
);
893 function getEntropyTypeStr(entropy
) {
894 var typeStr
= entropy
.base
.str
;
895 // Add some detail if these are cards
896 if (entropy
.base
.asInt
== 52) {
897 var cardDetail
= []; // array of message strings
900 var dupeTracker
= {};
901 for (var i
=0; i
<entropy
.base
.parts
.length
; i
++) {
902 var card
= entropy
.base
.parts
[i
];
903 var cardUpper
= card
.toUpperCase();
904 if (cardUpper
in dupeTracker
) {
907 dupeTracker
[cardUpper
] = true;
909 if (dupes
.length
> 0) {
910 var dupeWord
= "duplicates";
911 if (dupes
.length
== 1) {
912 dupeWord
= "duplicate";
914 var msg
= dupes
.length
+ " " + dupeWord
+ ": " + dupes
.slice(0,3).join(" ");
915 if (dupes
.length
> 3) {
918 cardDetail
.push(msg
);
921 var uniqueCards
= [];
922 for (var uniqueCard
in dupeTracker
) {
923 uniqueCards
.push(uniqueCard
);
925 if (uniqueCards
.length
== 52) {
926 cardDetail
.unshift("full deck");
928 // Detect missing cards
929 var values
= "A23456789TJQK";
931 var missingCards
= [];
932 for (var i
=0; i
<suits
.length
; i
++) {
933 for (var j
=0; j
<values
.length
; j
++) {
934 var card
= values
[j
] + suits
[i
];
935 if (!(card
in dupeTracker
)) {
936 missingCards
.push(card
);
940 // Display missing cards if six or less, ie clearly going for full deck
941 if (missingCards
.length
> 0 && missingCards
.length
<= 6) {
942 var msg
= missingCards
.length
+ " missing: " + missingCards
.slice(0,3).join(" ");
943 if (missingCards
.length
> 3) {
946 cardDetail
.push(msg
);
948 // Add card details to typeStr
949 if (cardDetail
.length
> 0) {
950 typeStr
+= " (" + cardDetail
.join(", ") + ")";
956 function setQrEvents(els
) {
957 els
.on("mouseenter", createQr
);
958 els
.on("mouseleave", destroyQr
);
959 els
.on("click", toggleQr
);
962 function createQr(e
) {
963 var content
= e
.target
.textContent
|| e
.target
.value
;
966 DOM
.qrImage
.qrcode({width: size
, height: size
, text: content
});
968 DOM
.qrHider
.addClass("hidden");
971 DOM
.qrHider
.removeClass("hidden");
973 DOM
.qrContainer
.removeClass("hidden");
977 function destroyQr() {
978 DOM
.qrImage
.text("");
979 DOM
.qrContainer
.addClass("hidden");
982 function toggleQr() {
984 DOM
.qrHider
.toggleClass("hidden");
985 DOM
.qrHint
.toggleClass("hidden");
988 function bip44TabSelected() {
989 return DOM
.bip44tab
.hasClass("active");
992 function bip32TabSelected() {
993 return DOM
.bip32tab
.hasClass("active");
999 onSelect: function() {
1000 network
= bitcoin
.networks
.bitcoin
;
1001 DOM
.bip44coin
.val(0);
1005 name: "Bitcoin Testnet",
1006 onSelect: function() {
1007 network
= bitcoin
.networks
.testnet
;
1008 DOM
.bip44coin
.val(1);
1013 onSelect: function() {
1014 network
= bitcoin
.networks
.litecoin
;
1015 DOM
.bip44coin
.val(2);
1020 onSelect: function() {
1021 network
= bitcoin
.networks
.dogecoin
;
1022 DOM
.bip44coin
.val(3);
1027 onSelect: function() {
1028 network
= bitcoin
.networks
.shadow
;
1029 DOM
.bip44coin
.val(35);
1033 name: "ShadowCash Testnet",
1034 onSelect: function() {
1035 network
= bitcoin
.networks
.shadowtn
;
1036 DOM
.bip44coin
.val(1);
1041 onSelect: function() {
1042 network
= bitcoin
.networks
.viacoin
;
1043 DOM
.bip44coin
.val(14);
1047 name: "Viacoin Testnet",
1048 onSelect: function() {
1049 network
= bitcoin
.networks
.viacointestnet
;
1050 DOM
.bip44coin
.val(1);
1055 onSelect: function() {
1056 network
= bitcoin
.networks
.jumbucks
;
1057 DOM
.bip44coin
.val(26);
1062 onSelect: function() {
1063 network
= bitcoin
.networks
.clam
;
1064 DOM
.bip44coin
.val(23);
1069 onSelect: function() {
1070 network
= bitcoin
.networks
.dash
;
1071 DOM
.bip44coin
.val(5);
1076 onSelect: function() {
1077 network
= bitcoin
.networks
.namecoin
;
1078 DOM
.bip44coin
.val(7);
1083 onSelect: function() {
1084 network
= bitcoin
.networks
.peercoin
;
1085 DOM
.bip44coin
.val(6);