]>
git.immae.eu Git - perso/Immae/Projets/Cryptomonnaies/BIP39.git/blob - src/js/index.js
3 var mnemonic
= new Mnemonic("english");
4 var bip32RootKey
= null;
5 var bip32ExtendedKey
= null;
6 var network
= Bitcoin
.networks
.bitcoin
;
7 var addressRowTemplate
= $("#address-row-template");
9 var phraseChangeTimeoutEvent
= null;
12 DOM
.phrase
= $(".phrase");
13 DOM
.passphrase
= $(".passphrase");
14 DOM
.generate
= $(".generate");
15 DOM
.rootKey
= $(".root-key");
16 DOM
.extendedPrivKey
= $(".extended-priv-key");
17 DOM
.extendedPubKey
= $(".extended-pub-key");
18 DOM
.bip32path
= $("#bip32-path");
19 DOM
.bip44path
= $("#bip44-path");
20 DOM
.bip44purpose
= $("#bip44 .purpose");
21 DOM
.bip44coin
= $("#bip44 .coin");
22 DOM
.bip44account
= $("#bip44 .account");
23 DOM
.bip44change
= $("#bip44 .change");
24 DOM
.strength
= $(".strength");
25 DOM
.addresses
= $(".addresses");
26 DOM
.rowsToAdd
= $(".rows-to-add");
27 DOM
.more
= $(".more");
28 DOM
.feedback
= $(".feedback");
29 DOM
.tab
= $(".derivation-type a");
30 DOM
.indexToggle
= $(".index-toggle");
31 DOM
.addressToggle
= $(".address-toggle");
32 DOM
.privateKeyToggle
= $(".private-key-toggle");
34 var derivationPath
= DOM
.bip44path
.val();
38 DOM
.phrase
.on("keyup", delayedPhraseChanged
);
39 DOM
.passphrase
.on("keyup", delayedPhraseChanged
);
40 DOM
.generate
.on("click", generateClicked
);
41 DOM
.more
.on("click", showMore
);
42 DOM
.bip32path
.on("keyup", bip32Changed
);
43 DOM
.bip44purpose
.on("keyup", bip44Changed
);
44 DOM
.bip44coin
.on("keyup", bip44Changed
);
45 DOM
.bip44account
.on("keyup", bip44Changed
);
46 DOM
.bip44change
.on("keyup", bip44Changed
);
47 DOM
.tab
.on("click", tabClicked
);
48 DOM
.indexToggle
.on("click", toggleIndexes
);
49 DOM
.addressToggle
.on("click", toggleAddresses
);
50 DOM
.privateKeyToggle
.on("click", togglePrivateKeys
);
53 hideValidationError();
58 function delayedPhraseChanged() {
59 hideValidationError();
61 if (phraseChangeTimeoutEvent
!= null) {
62 clearTimeout(phraseChangeTimeoutEvent
);
64 phraseChangeTimeoutEvent
= setTimeout(phraseChanged
, 400);
67 function phraseChanged() {
69 hideValidationError();
70 // Get the mnemonic phrase
71 var phrase
= DOM
.phrase
.val();
72 var passphrase
= DOM
.passphrase
.val();
73 var errorText
= findPhraseErrors(phrase
);
75 showValidationError(errorText
);
78 // Get the derivation path
79 var errorText
= findDerivationPathErrors();
81 showValidationError(errorText
);
84 // Calculate and display
85 calcBip32Seed(phrase
, passphrase
, derivationPath
);
90 function generateClicked() {
93 setTimeout(function() {
94 var phrase
= generateRandomPhrase();
102 function tabClicked(e
) {
103 var activePath
= $(e
.target
.getAttribute("href") + " .path");
104 derivationPath
= activePath
.val();
108 function derivationChanged() {
109 delayedPhraseChanged();
112 function bip32Changed() {
113 derivationPath
= DOM
.bip32path
.val();
117 function bip44Changed() {
118 setBip44DerivationPath();
119 derivationPath
= DOM
.bip44path
.val();
123 function toggleIndexes() {
124 $("td.index span").toggleClass("invisible");
127 function toggleAddresses() {
128 $("td.address span").toggleClass("invisible");
131 function togglePrivateKeys() {
132 $("td.privkey span").toggleClass("invisible");
137 function generateRandomPhrase() {
138 if (!hasStrongRandom()) {
139 var errorText
= "This browser does not support strong randomness";
140 showValidationError(errorText
);
143 var numWords
= parseInt(DOM
.strength
.val());
144 // Check strength is an integer
145 if (isNaN(numWords
)) {
146 DOM
.strength
.val("12");
149 // Check strength is a multiple of 32, if not round it down
150 if (numWords
% 3 != 0) {
151 numWords
= Math
.floor(numWords
/ 3) * 3;
152 DOM
.strength
.val(numWords
);
154 // Check strength is at least 32
157 DOM
.strength
.val(numWords
);
159 var strength
= numWords
/ 3 * 32;
160 var words
= mnemonic
.generate(strength
);
161 DOM
.phrase
.val(words
);
165 function calcBip32Seed(phrase
, passphrase
, path
) {
166 var seed
= mnemonic
.toSeed(phrase
, passphrase
);
167 var seedHash
= Bitcoin
.crypto
.sha256(seed
).toString("hex");
168 bip32RootKey
= Bitcoin
.HDNode
.fromSeedHex(seedHash
, network
);
169 bip32ExtendedKey
= bip32RootKey
;
170 // Derive the key from the path
171 var pathBits
= path
.split("/");
172 for (var i
=0; i
<pathBits
.length
; i
++) {
173 var bit
= pathBits
[i
];
174 var index
= parseInt(bit
);
178 var hardened
= bit
[bit
.length
-1] == "'";
180 bip32ExtendedKey
= bip32ExtendedKey
.deriveHardened(index
);
183 bip32ExtendedKey
= bip32ExtendedKey
.derive(index
);
188 function showValidationError(errorText
) {
194 function hideValidationError() {
200 function findPhraseErrors(phrase
) {
201 // TODO make this right
202 // Preprocess the words
203 var parts
= phrase
.split(" ");
205 for (var i
=0; i
<parts
.length
; i
++) {
207 if (part
.length
> 0) {
208 // TODO check that lowercasing is always valid to do
209 proper
.push(part
.toLowerCase());
212 // TODO some levenstein on the words
213 var properPhrase
= proper
.join(' ');
214 // Check the words are valid
215 var isValid
= mnemonic
.check(properPhrase
);
217 return "Invalid mnemonic";
222 function findDerivationPathErrors(path
) {
227 function displayBip32Info() {
229 var rootKey
= bip32RootKey
.toBase58();
230 DOM
.rootKey
.val(rootKey
);
231 var extendedPrivKey
= bip32ExtendedKey
.toBase58();
232 DOM
.extendedPrivKey
.val(extendedPrivKey
);
233 var extendedPubKey
= bip32ExtendedKey
.toBase58(false);
234 DOM
.extendedPubKey
.val(extendedPubKey
);
235 // Display the addresses and privkeys
236 clearAddressesList();
237 displayAddresses(0, 20);
240 function displayAddresses(start
, total
) {
241 for (var i
=0; i
<total
; i
++) {
242 var index
= i
+ start
;
243 var key
= bip32ExtendedKey
.derive(index
);
244 var address
= key
.getAddress().toString();
245 var privkey
= key
.privKey
.toWIF();
246 addAddressToList(index
, address
, privkey
);
250 function showMore() {
251 var start
= DOM
.addresses
.children().length
;
252 var rowsToAdd
= parseInt(DOM
.rowsToAdd
.val());
253 if (isNaN(rowsToAdd
)) {
255 DOM
.rowsToAdd
.val("20");
257 if (rowsToAdd
> 200) {
258 var msg
= "Generating " + rowsToAdd
+ " rows could take a while. ";
259 msg
+= "Do you want to continue?";
265 setTimeout(function() {
266 displayAddresses(start
, rowsToAdd
);
271 function clearDisplay() {
272 clearAddressesList();
274 hideValidationError();
277 function clearAddressesList() {
278 DOM
.addresses
.empty();
281 function clearKey() {
283 DOM
.extendedPrivKey
.val("");
284 DOM
.extendedPubKey
.val("");
287 function addAddressToList(index
, address
, privkey
) {
288 var row
= $(addressRowTemplate
.html());
289 row
.find(".index span").text(index
);
290 row
.find(".address span").text(address
);
291 row
.find(".privkey span").text(privkey
);
292 DOM
.addresses
.append(row
);
295 function hasStrongRandom() {
296 return 'crypto' in window
&& window
['crypto'] !== null;
299 function disableForms() {
300 $("form").on("submit", function(e
) {
305 function setBip44DerivationPath() {
306 var purpose
= parseIntNoNaN(DOM
.bip44purpose
.val(), 44);
307 var coin
= parseIntNoNaN(DOM
.bip44coin
.val(), 0);
308 var account
= parseIntNoNaN(DOM
.bip44account
.val(), 0);
309 var change
= parseIntNoNaN(DOM
.bip44change
.val(), 0);
311 path
+= purpose
+ "'/";
313 path
+= account
+ "'/";
315 DOM
.bip44path
.val(path
);
318 function parseIntNoNaN(val
, defaultVal
) {
319 var v
= parseInt(val
);
326 function showPending() {
328 .text("Calculating...")
332 function hidePending() {