54 lines
1.7 KiB
JavaScript
54 lines
1.7 KiB
JavaScript
(function () {
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var factory = function (Util, Nacl, Scrypt) {
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var Invite = {};
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Invite.deriveSeeds = function (safeSeed) {
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// take the hash of the provided seed
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var seed = safeSeed.replace(/\-/g, '/');
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var u8_seed = Nacl.hash(Nacl.util.decodeBase64(seed));
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// hash the first half again for scrypt's input
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var subseed1 = Nacl.hash(u8_seed.subarray(0, 32));
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// hash the remainder for the invite content
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var subseed2 = Nacl.hash(u8_seed.subarray(32));
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return {
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scrypt: Nacl.util.encodeBase64(subseed1),
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preview: Nacl.util.encodeBase64(subseed2),
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};
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};
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Invite.deriveSalt = function (password, instance_salt) {
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return (password || '') + (instance_salt || '');
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};
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// seed => bytes64
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Invite.deriveBytes = function (scrypt_seed, salt, cb) {
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Scrypt(scrypt_seed,
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salt,
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8, // memoryCost (n)
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1024, // block size parameter (r)
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192, // dkLen
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200, // interruptStep
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cb,
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'base64'); // format, could be 'base64'
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};
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return Invite;
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};
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if (typeof(module) !== 'undefined' && module.exports) {
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module.exports = factory(
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require("../common-util"),
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require("tweetnacl/nacl-fast"),
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require("scrypt-async")
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);
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} else if ((typeof(define) !== 'undefined' && define !== null) && (define.amd !== null)) {
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define([
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'/common/common-util.js',
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'/bower_components/tweetnacl/nacl-fast.min.js',
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'/bower_components/scrypt-async/scrypt-async.min.js',
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], function (Util) {
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return factory(Util, window.nacl, window.scrypt);
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});
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}
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}());
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