You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
59 lines
2.0 KiB
JavaScript
59 lines
2.0 KiB
JavaScript
(function () {
|
|
var factory = function (Hash, Util, Crypt, Nacl, Scrypt/*, Cred, nThen */) {
|
|
var Invite = {};
|
|
|
|
Invite.deriveSeeds = function (safeSeed) {
|
|
// take the hash of the provided seed
|
|
var seed = safeSeed.replace(/\-/g, '/');
|
|
var u8_seed = Nacl.hash(Nacl.util.decodeBase64(seed));
|
|
|
|
// hash the first half again for scrypt's input
|
|
var subseed1 = Nacl.hash(u8_seed.subarray(0, 32));
|
|
// hash the remainder for the invite content
|
|
var subseed2 = Nacl.hash(u8_seed.subarray(32));
|
|
|
|
return {
|
|
scrypt: Nacl.util.encodeBase64(subseed1),
|
|
preview: Nacl.util.encodeBase64(subseed2),
|
|
};
|
|
};
|
|
|
|
Invite.deriveSalt = function (password, instance_salt) {
|
|
return (password || '') + (instance_salt || '');
|
|
};
|
|
|
|
// seed => bytes64
|
|
Invite.deriveBytes = function (scrypt_seed, salt, cb) {
|
|
Scrypt(scrypt_seed,
|
|
salt,
|
|
8, // memoryCost (n)
|
|
1024, // block size parameter (r)
|
|
192, // dkLen
|
|
200, // interruptStep
|
|
cb,
|
|
'base64'); // format, could be 'base64'
|
|
};
|
|
|
|
return Invite;
|
|
};
|
|
if (typeof(module) !== 'undefined' && module.exports) {
|
|
module.exports = factory(
|
|
require("../common-hash"),
|
|
require("../common-util"),
|
|
require("../cryptget"), // XXX npm cryptget?
|
|
require("tweetnacl/nacl-fast"),
|
|
require("scrypt-async")
|
|
);
|
|
} else if ((typeof(define) !== 'undefined' && define !== null) && (define.amd !== null)) {
|
|
define([
|
|
'/common/common-hash.js',
|
|
'/common/common-util.js',
|
|
'/common/cryptget.js',
|
|
'/bower_components/tweetnacl/nacl-fast.min.js',
|
|
'/bower_components/scrypt-async/scrypt-async.min.js',
|
|
], function (Hash, Util, Crypt /*, Nacl, Scrypt */) {
|
|
return factory(Hash, Util, Crypt, window.nacl, window.scrypt);
|
|
});
|
|
}
|
|
}());
|