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encryption key has now limited time to live if not used for 10 minutes

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This commit is contained in:
azivner 2017-09-06 21:56:06 -04:00
parent 2c3df13424
commit 5a64eed1dd
1 changed files with 16 additions and 0 deletions
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16
static/js/note.js
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@ -290,7 +290,11 @@ function deriveEncryptionKey(password) {
}); });
} }
// currently not configurable
const globalEncryptionKeyTimeToLive = 10 * 60 * 1000; // in milliseconds
let globalEncryptionKey = null; let globalEncryptionKey = null;
let globalLastEncryptionOperationDate = null;
$("#encryptionPasswordForm").submit(function() { $("#encryptionPasswordForm").submit(function() {
const password = $("#encryptionPassword").val(); const password = $("#encryptionPassword").val();
@ -313,6 +317,18 @@ $("#encryptionPasswordForm").submit(function() {
}); });
function getAes() { function getAes() {
globalLastEncryptionOperationDate = new Date();
setTimeout(function() {
if (new Date().getTime() - globalLastEncryptionOperationDate.getTime() > globalEncryptionKeyTimeToLive) {
globalEncryptionKey = null;
if (globalNote.detail.encryption > 0) {
loadNote(globalNote.detail.note_id);
}
}
}, globalEncryptionKeyTimeToLive + 1000);
return new aesjs.ModeOfOperation.ctr(globalEncryptionKey, new aesjs.Counter(5)); return new aesjs.ModeOfOperation.ctr(globalEncryptionKey, new aesjs.Counter(5));
} }