mail/src/js/crypto/nacl-worker.js

40 lines
1.0 KiB
JavaScript

(function() {
'use strict';
// import web worker dependencies
importScripts('../../lib/nacl.js');
/**
* In the web worker thread context, 'this' and 'self' can be used as a global
* variable namespace similar to the 'window' object in the main thread
*/
self.onmessage = function(e) {
var i = e.data,
output = null;
if (i.type === 'keygen') {
// generate keypair
if (i.seed) {
output = nacl.crypto_box_keypair_from_seed(i.seed);
} else {
output = nacl.crypto_box_keypair();
}
} else if (i.type === 'encrypt' && i.plaintext && i.nonce && i.recipientPk && i.senderSk) {
// start encryption
output = nacl.crypto_box(i.plaintext, i.nonce, i.recipientPk, i.senderSk);
} else if (i.type === 'decrypt' && i.ciphertext && i.nonce && i.senderPk && i.recipienSk) {
// start decryption
output = nacl.crypto_box_open(i.ciphertext, i.nonce, i.senderPk, i.recipienSk);
} else {
throw 'Not all arguments for web worker crypto are defined!';
}
// pass output back to main thread
self.postMessage(output);
};
}());