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 // Check there's a root key to derive from
331 var extendedKey
= bip32RootKey
;
332 // Derive the key from the path
333 var pathBits
= path
.split("/");
334 for (var i
=0; i
<pathBits
.length
; i
++) {
335 var bit
= pathBits
[i
];
336 var index
= parseInt(bit
);
340 var hardened
= bit
[bit
.length
-1] == "'";
341 var isPriv
= "privKey" in extendedKey
;
342 var invalidDerivationPath
= hardened
&& !isPriv
;
343 if (invalidDerivationPath
) {
347 extendedKey
= extendedKey
.deriveHardened(index
);
350 extendedKey
= extendedKey
.derive(index
);
356 function showValidationError(errorText
) {
362 function hideValidationError() {
368 function findPhraseErrors(phrase
) {
369 // Preprocess the words
370 phrase
= mnemonic
.normalizeString(phrase
);
371 var words
= phraseToWordArray(phrase
);
372 // Detect blank phrase
373 if (words
.length
== 0) {
374 return "Blank mnemonic";
377 for (var i
=0; i
<words
.length
; i
++) {
379 var language
= getLanguage();
380 if (WORDLISTS
[language
].indexOf(word
) == -1) {
381 console
.log("Finding closest match to " + word
);
382 var nearestWord
= findNearestWord(word
);
383 return word
+ " not in wordlist, did you mean " + nearestWord
+ "?";
386 // Check the words are valid
387 var properPhrase
= wordArrayToPhrase(words
);
388 var isValid
= mnemonic
.check(properPhrase
);
390 return "Invalid mnemonic";
395 function validateRootKey(rootKeyBase58
) {
397 bitcoin
.HDNode
.fromBase58(rootKeyBase58
);
400 return "Invalid root key";
405 function getDerivationPath() {
406 if (bip44TabSelected()) {
407 var purpose
= parseIntNoNaN(DOM
.bip44purpose
.val(), 44);
408 var coin
= parseIntNoNaN(DOM
.bip44coin
.val(), 0);
409 var account
= parseIntNoNaN(DOM
.bip44account
.val(), 0);
410 var change
= parseIntNoNaN(DOM
.bip44change
.val(), 0);
412 path
+= purpose
+ "'/";
414 path
+= account
+ "'/";
416 DOM
.bip44path
.val(path
);
417 var derivationPath
= DOM
.bip44path
.val();
418 console
.log("Using derivation path from BIP44 tab: " + derivationPath
);
419 return derivationPath
;
421 else if (bip32TabSelected()) {
422 var derivationPath
= DOM
.bip32path
.val();
423 console
.log("Using derivation path from BIP32 tab: " + derivationPath
);
424 return derivationPath
;
427 console
.log("Unknown derivation path");
431 function findDerivationPathErrors(path
) {
432 // TODO is not perfect but is better than nothing
434 // https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki#test-vectors
436 // https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki#extended-keys
437 var maxDepth
= 255; // TODO verify this!!
438 var maxIndexValue
= Math
.pow(2, 31); // TODO verify this!!
439 if (path
[0] != "m") {
440 return "First character must be 'm'";
442 if (path
.length
> 1) {
443 if (path
[1] != "/") {
444 return "Separator must be '/'";
446 var indexes
= path
.split("/");
447 if (indexes
.length
> maxDepth
) {
448 return "Derivation depth is " + indexes
.length
+ ", must be less than " + maxDepth
;
450 for (var depth
= 1; depth
<indexes
.length
; depth
++) {
451 var index
= indexes
[depth
];
452 var invalidChars
= index
.replace(/^[0-9]+'?$/g, "")
453 if (invalidChars
.length
> 0) {
454 return "Invalid characters " + invalidChars
+ " found at depth " + depth
;
456 var indexValue
= parseInt(index
.replace("'", ""));
458 return "Invalid number at depth " + depth
;
460 if (indexValue
> maxIndexValue
) {
461 return "Value of " + indexValue
+ " at depth " + depth
+ " must be less than " + maxIndexValue
;
465 // Check root key exists or else derivation path is useless!
467 return "No root key";
469 // Check no hardened derivation path when using xpub keys
470 var hardened
= path
.indexOf("'") > -1;
471 var isXpubkey
= !("privKey" in bip32RootKey
);
472 if (hardened
&& isXpubkey
) {
473 return "Hardened derivation path is invalid with xpub key";
478 function displayBip44Info() {
479 // Get the derivation path for the account
480 var purpose
= parseIntNoNaN(DOM
.bip44purpose
.val(), 44);
481 var coin
= parseIntNoNaN(DOM
.bip44coin
.val(), 0);
482 var account
= parseIntNoNaN(DOM
.bip44account
.val(), 0);
484 path
+= purpose
+ "'/";
486 path
+= account
+ "'/";
487 // Calculate the account extended keys
488 var accountExtendedKey
= calcBip32ExtendedKey(path
);
489 var accountXprv
= accountExtendedKey
.toBase58();
490 var accountXpub
= accountExtendedKey
.toBase58(false);
491 // Display the extended keys
492 DOM
.bip44accountXprv
.val(accountXprv
);
493 DOM
.bip44accountXpub
.val(accountXpub
);
496 function displayBip32Info() {
499 var rootKey
= bip32RootKey
.toBase58();
500 DOM
.rootKey
.val(rootKey
);
501 var xprvkeyB58
= "NA";
502 if (bip32ExtendedKey
.privKey
) {
503 xprvkeyB58
= bip32ExtendedKey
.toBase58();
505 var extendedPrivKey
= xprvkeyB58
;
506 DOM
.extendedPrivKey
.val(extendedPrivKey
);
507 var extendedPubKey
= bip32ExtendedKey
.toBase58(false);
508 DOM
.extendedPubKey
.val(extendedPubKey
);
509 // Display the addresses and privkeys
510 clearAddressesList();
511 displayAddresses(0, 20);
514 function displayAddresses(start
, total
) {
515 for (var i
=0; i
<total
; i
++) {
516 var index
= i
+ start
;
521 function TableRow(index
) {
523 var useHardenedAddresses
= DOM
.hardenedAddresses
.prop("checked");
529 function calculateValues() {
530 setTimeout(function() {
532 if (useHardenedAddresses
) {
533 key
= bip32ExtendedKey
.deriveHardened(index
);
536 key
= bip32ExtendedKey
.derive(index
);
538 var address
= key
.getAddress().toString();
541 privkey
= key
.privKey
.toWIF(network
);
543 var pubkey
= key
.pubKey
.toHex();
544 var indexText
= getDerivationPath() + "/" + index
;
545 if (useHardenedAddresses
) {
546 indexText
= indexText
+ "'";
548 addAddressToList(indexText
, address
, pubkey
, privkey
);
556 function showMore() {
557 var start
= DOM
.addresses
.children().length
;
558 var rowsToAdd
= parseInt(DOM
.rowsToAdd
.val());
559 if (isNaN(rowsToAdd
)) {
561 DOM
.rowsToAdd
.val("20");
563 if (rowsToAdd
> 200) {
564 var msg
= "Generating " + rowsToAdd
+ " rows could take a while. ";
565 msg
+= "Do you want to continue?";
570 displayAddresses(start
, rowsToAdd
);
573 function clearDisplay() {
574 clearAddressesList();
576 hideValidationError();
579 function clearAddressesList() {
580 DOM
.addresses
.empty();
583 function clearKey() {
585 DOM
.extendedPrivKey
.val("");
586 DOM
.extendedPubKey
.val("");
589 function addAddressToList(indexText
, address
, pubkey
, privkey
) {
590 var row
= $(addressRowTemplate
.html());
592 var indexCell
= row
.find(".index span");
593 var addressCell
= row
.find(".address span");
594 var pubkeyCell
= row
.find(".pubkey span");
595 var privkeyCell
= row
.find(".privkey span");
597 indexCell
.text(indexText
);
598 addressCell
.text(address
);
599 pubkeyCell
.text(pubkey
);
600 privkeyCell
.text(privkey
);
603 indexCell
.addClass("invisible");
606 addressCell
.addClass("invisible");
609 pubkeyCell
.addClass("invisible");
612 privkeyCell
.addClass("invisible");
614 DOM
.addresses
.append(row
);
615 var rowShowQrEls
= row
.find("[data-show-qr]");
616 setQrEvents(rowShowQrEls
);
619 function hasStrongRandom() {
620 return 'crypto' in window
&& window
['crypto'] !== null;
623 function disableForms() {
624 $("form").on("submit", function(e
) {
629 function parseIntNoNaN(val
, defaultVal
) {
630 var v
= parseInt(val
);
637 function showPending() {
639 .text("Calculating...")
643 function findNearestWord(word
) {
644 var language
= getLanguage();
645 var words
= WORDLISTS
[language
];
646 var minDistance
= 99;
647 var closestWord
= words
[0];
648 for (var i
=0; i
<words
.length
; i
++) {
649 var comparedTo
= words
[i
];
650 if (comparedTo
.indexOf(word
) == 0) return comparedTo
;
652 var distance
= Levenshtein
.get(word
, comparedTo
);
653 if (distance
< minDistance
) {
654 closestWord
= comparedTo
;
655 minDistance
= distance
;
661 function hidePending() {
667 function populateNetworkSelect() {
668 for (var i
=0; i
<networks
.length
; i
++) {
669 var network
= networks
[i
];
670 var option
= $("<option>");
671 option
.attr("value", i
);
672 option
.text(network
.name
);
673 DOM
.phraseNetwork
.append(option
);
677 function getLanguage() {
678 var defaultLanguage
= "english";
679 // Try to get from existing phrase
680 var language
= getLanguageFromPhrase();
681 // Try to get from url if not from phrase
682 if (language
.length
== 0) {
683 language
= getLanguageFromUrl();
685 // Default to English if no other option
686 if (language
.length
== 0) {
687 language
= defaultLanguage
;
692 function getLanguageFromPhrase(phrase
) {
693 // Check if how many words from existing phrase match a language.
696 phrase
= DOM
.phrase
.val();
698 if (phrase
.length
> 0) {
699 var words
= phraseToWordArray(phrase
);
700 var languageMatches
= {};
701 for (l
in WORDLISTS
) {
702 // Track how many words match in this language
703 languageMatches
[l
] = 0;
704 for (var i
=0; i
<words
.length
; i
++) {
705 var wordInLanguage
= WORDLISTS
[l
].indexOf(words
[i
]) > -1;
706 if (wordInLanguage
) {
707 languageMatches
[l
]++;
710 // Find languages with most word matches.
711 // This is made difficult due to commonalities between Chinese
712 // simplified vs traditional.
714 var mostMatchedLanguages
= [];
715 for (var l
in languageMatches
) {
716 var numMatches
= languageMatches
[l
];
717 if (numMatches
> mostMatches
) {
718 mostMatches
= numMatches
;
719 mostMatchedLanguages
= [l
];
721 else if (numMatches
== mostMatches
) {
722 mostMatchedLanguages
.push(l
);
726 if (mostMatchedLanguages
.length
> 0) {
727 // Use first language and warn if multiple detected
728 language
= mostMatchedLanguages
[0];
729 if (mostMatchedLanguages
.length
> 1) {
730 console
.warn("Multiple possible languages");
731 console
.warn(mostMatchedLanguages
);
738 function getLanguageFromUrl() {
739 for (var language
in WORDLISTS
) {
740 if (window
.location
.hash
.indexOf(language
) > -1) {
747 function setMnemonicLanguage() {
748 var language
= getLanguage();
749 // Load the bip39 mnemonic generator for this language if required
750 if (!(language
in mnemonics
)) {
751 mnemonics
[language
] = new Mnemonic(language
);
753 mnemonic
= mnemonics
[language
];
756 function convertPhraseToNewLanguage() {
757 var oldLanguage
= getLanguageFromPhrase();
758 var newLanguage
= getLanguageFromUrl();
759 var oldPhrase
= DOM
.phrase
.val();
760 var oldWords
= phraseToWordArray(oldPhrase
);
762 for (var i
=0; i
<oldWords
.length
; i
++) {
763 var oldWord
= oldWords
[i
];
764 var index
= WORDLISTS
[oldLanguage
].indexOf(oldWord
);
765 var newWord
= WORDLISTS
[newLanguage
][index
];
766 newWords
.push(newWord
);
768 newPhrase
= wordArrayToPhrase(newWords
);
772 // TODO look at jsbip39 - mnemonic.splitWords
773 function phraseToWordArray(phrase
) {
774 var words
= phrase
.split(/\s/g);
776 for (var i
=0; i
<words
.length
; i
++) {
778 if (word
.length
> 0) {
785 // TODO look at jsbip39 - mnemonic.joinWords
786 function wordArrayToPhrase(words
) {
787 var phrase
= words
.join(" ");
788 var language
= getLanguageFromPhrase(phrase
);
789 if (language
== "japanese") {
790 phrase
= words
.join("\u3000");
795 function isUsingOwnEntropy() {
796 return DOM
.useEntropy
.prop("checked");
799 function setMnemonicFromEntropy() {
800 clearEntropyFeedback();
802 var entropyStr
= DOM
.entropy
.val();
803 // Work out minimum base for entropy
804 var entropy
= Entropy
.fromString(entropyStr
);
805 if (entropy
.binaryStr
.length
== 0) {
808 // Show entropy details
809 showEntropyFeedback(entropy
);
810 // Use entropy hash if not using raw entropy
811 var bits
= entropy
.binaryStr
;
812 var mnemonicLength
= DOM
.entropyMnemonicLength
.val();
813 if (mnemonicLength
!= "raw") {
814 // Get bits by hashing entropy with SHA256
815 var hash
= sjcl
.hash
.sha256
.hash(entropy
.cleanStr
);
816 var hex
= sjcl
.codec
.hex
.fromBits(hash
);
817 bits
= BigInteger
.parse(hex
, 16).toString(2);
818 for (var i
=0; i
<256-bits
.length
; i
++) {
821 // Truncate hash to suit number of words
822 mnemonicLength
= parseInt(mnemonicLength
);
823 var numberOfBits
= 32 * mnemonicLength
/ 3;
824 bits
= bits
.substring(0, numberOfBits
);
826 // Discard trailing entropy
827 var bitsToUse
= Math
.floor(bits
.length
/ 32) * 32;
828 var start
= bits
.length
- bitsToUse
;
829 var binaryStr
= bits
.substring(start
);
830 // Convert entropy string to numeric array
832 for (var i
=0; i
<binaryStr
.length
/ 8; i
++) {
833 var byteAsBits
= binaryStr
.substring(i
*8, i
*8+8);
834 var entropyByte
= parseInt(byteAsBits
, 2);
835 entropyArr
.push(entropyByte
)
837 // Convert entropy array to mnemonic
838 var phrase
= mnemonic
.toMnemonic(entropyArr
);
839 // Set the mnemonic in the UI
840 DOM
.phrase
.val(phrase
);
843 function clearEntropyFeedback() {
844 DOM
.entropyStrength
.text("...");
845 DOM
.entropyType
.text("");
846 DOM
.entropyWordCount
.text("0");
847 DOM
.entropyEventCount
.text("0");
848 DOM
.entropyBitsPerEvent
.text("0");
849 DOM
.entropyBits
.text("0");
850 DOM
.entropyFiltered
.html(" ");
851 DOM
.entropyBinary
.html(" ");
854 function showEntropyFeedback(entropy
) {
855 var numberOfBits
= entropy
.binaryStr
.length
;
856 var strength
= "extremely weak";
857 if (numberOfBits
>= 64) {
858 strength
= "very weak";
860 if (numberOfBits
>= 96) {
863 if (numberOfBits
>= 128) {
866 if (numberOfBits
>= 160) {
867 strength
= "very strong";
869 if (numberOfBits
>= 192) {
870 strength
= "extremely strong";
872 // If time to crack is less than one day, and password is considered
873 // strong or better based on the number of bits, rename strength to
876 var z
= zxcvbn(entropy
.base
.parts
.join(""));
877 var timeToCrack
= z
.crack_times_seconds
.offline_fast_hashing_1e10_per_second
;
878 if (timeToCrack
< 86400 && entropy
.binaryStr
.length
>= 128) {
879 strength
= "easily cracked";
880 if (z
.feedback
.warning
!= "") {
881 strength
= strength
+ " - " + z
.feedback
.warning
;
886 strength
= "unknown";
887 console
.log("Error detecting entropy strength with zxcvbn:");
890 var entropyTypeStr
= getEntropyTypeStr(entropy
);
891 var wordCount
= Math
.floor(numberOfBits
/ 32) * 3;
892 var bitsPerEvent
= entropy
.bitsPerEvent
.toFixed(2);
893 DOM
.entropyFiltered
.html(entropy
.cleanHtml
);
894 DOM
.entropyType
.text(entropyTypeStr
);
895 DOM
.entropyStrength
.text(strength
);
896 DOM
.entropyEventCount
.text(entropy
.base
.ints
.length
);
897 DOM
.entropyBits
.text(numberOfBits
);
898 DOM
.entropyWordCount
.text(wordCount
);
899 DOM
.entropyBinary
.text(entropy
.binaryStr
);
900 DOM
.entropyBitsPerEvent
.text(bitsPerEvent
);
903 function getEntropyTypeStr(entropy
) {
904 var typeStr
= entropy
.base
.str
;
905 // Add some detail if these are cards
906 if (entropy
.base
.asInt
== 52) {
907 var cardDetail
= []; // array of message strings
910 var dupeTracker
= {};
911 for (var i
=0; i
<entropy
.base
.parts
.length
; i
++) {
912 var card
= entropy
.base
.parts
[i
];
913 var cardUpper
= card
.toUpperCase();
914 if (cardUpper
in dupeTracker
) {
917 dupeTracker
[cardUpper
] = true;
919 if (dupes
.length
> 0) {
920 var dupeWord
= "duplicates";
921 if (dupes
.length
== 1) {
922 dupeWord
= "duplicate";
924 var msg
= dupes
.length
+ " " + dupeWord
+ ": " + dupes
.slice(0,3).join(" ");
925 if (dupes
.length
> 3) {
928 cardDetail
.push(msg
);
931 var uniqueCards
= [];
932 for (var uniqueCard
in dupeTracker
) {
933 uniqueCards
.push(uniqueCard
);
935 if (uniqueCards
.length
== 52) {
936 cardDetail
.unshift("full deck");
938 // Detect missing cards
939 var values
= "A23456789TJQK";
941 var missingCards
= [];
942 for (var i
=0; i
<suits
.length
; i
++) {
943 for (var j
=0; j
<values
.length
; j
++) {
944 var card
= values
[j
] + suits
[i
];
945 if (!(card
in dupeTracker
)) {
946 missingCards
.push(card
);
950 // Display missing cards if six or less, ie clearly going for full deck
951 if (missingCards
.length
> 0 && missingCards
.length
<= 6) {
952 var msg
= missingCards
.length
+ " missing: " + missingCards
.slice(0,3).join(" ");
953 if (missingCards
.length
> 3) {
956 cardDetail
.push(msg
);
958 // Add card details to typeStr
959 if (cardDetail
.length
> 0) {
960 typeStr
+= " (" + cardDetail
.join(", ") + ")";
966 function setQrEvents(els
) {
967 els
.on("mouseenter", createQr
);
968 els
.on("mouseleave", destroyQr
);
969 els
.on("click", toggleQr
);
972 function createQr(e
) {
973 var content
= e
.target
.textContent
|| e
.target
.value
;
976 DOM
.qrImage
.qrcode({width: size
, height: size
, text: content
});
978 DOM
.qrHider
.addClass("hidden");
981 DOM
.qrHider
.removeClass("hidden");
983 DOM
.qrContainer
.removeClass("hidden");
987 function destroyQr() {
988 DOM
.qrImage
.text("");
989 DOM
.qrContainer
.addClass("hidden");
992 function toggleQr() {
994 DOM
.qrHider
.toggleClass("hidden");
995 DOM
.qrHint
.toggleClass("hidden");
998 function bip44TabSelected() {
999 return DOM
.bip44tab
.hasClass("active");
1002 function bip32TabSelected() {
1003 return DOM
.bip32tab
.hasClass("active");
1009 onSelect: function() {
1010 network
= bitcoin
.networks
.bitcoin
;
1011 DOM
.bip44coin
.val(0);
1015 name: "Bitcoin Testnet",
1016 onSelect: function() {
1017 network
= bitcoin
.networks
.testnet
;
1018 DOM
.bip44coin
.val(1);
1023 onSelect: function() {
1024 network
= bitcoin
.networks
.litecoin
;
1025 DOM
.bip44coin
.val(2);
1030 onSelect: function() {
1031 network
= bitcoin
.networks
.dogecoin
;
1032 DOM
.bip44coin
.val(3);
1037 onSelect: function() {
1038 network
= bitcoin
.networks
.shadow
;
1039 DOM
.bip44coin
.val(35);
1043 name: "ShadowCash Testnet",
1044 onSelect: function() {
1045 network
= bitcoin
.networks
.shadowtn
;
1046 DOM
.bip44coin
.val(1);
1051 onSelect: function() {
1052 network
= bitcoin
.networks
.viacoin
;
1053 DOM
.bip44coin
.val(14);
1057 name: "Viacoin Testnet",
1058 onSelect: function() {
1059 network
= bitcoin
.networks
.viacointestnet
;
1060 DOM
.bip44coin
.val(1);
1065 onSelect: function() {
1066 network
= bitcoin
.networks
.jumbucks
;
1067 DOM
.bip44coin
.val(26);
1072 onSelect: function() {
1073 network
= bitcoin
.networks
.clam
;
1074 DOM
.bip44coin
.val(23);
1079 onSelect: function() {
1080 network
= bitcoin
.networks
.dash
;
1081 DOM
.bip44coin
.val(5);
1086 onSelect: function() {
1087 network
= bitcoin
.networks
.namecoin
;
1088 DOM
.bip44coin
.val(7);
1093 onSelect: function() {
1094 network
= bitcoin
.networks
.peercoin
;
1095 DOM
.bip44coin
.val(6);