app-scoped-ids v1.0.1

app-scoped-ids

Create deterministic and cryptographically secure App-Scoped IDs by applying AES encryption and a previously generated App Secret.

It is important to note that the IV (initialization vector) is set to null (all 0s) because we explicitly want deterministic values (and we wouldn't want to waste space for attaching the iv anyway).

Install

npm install --save app-scoped-ids

API

• scoper.scope(id, appSecret)
• scoper.unscope(id, appSecret)

Example

'use strict';

var scoper = require('./');
            // require('crypto').randomBytes(16).toString('hex');
var appSecret = new Buffer('84b1a5bf7583767508005345381507c1', 'hex');

var id = 'some-reliably-unique-id';
var appScopedId = scoper.scope(id, appSecret);
var id2 = scoper.unscope(appScopedId, appSecret);

console.log('original id:', id);
console.log('app-scoped: ', appScopedId);
console.log('and back:   ', id2);

License

(MIT OR Apache-2.0)

See LICENSE