This JavaScript code is a Stimulus controller (indicated by import { Controller } from "@hotwired/stimulus"
) named notes
, designed for managing encrypted notes within a web application, likely part of a larger application (possibly Micro.blog, given references like _microblog
). It handles encryption, decryption, storage, retrieval, UI interactions, and integration with external services (CloudKit). Here's a breakdown:
1. Overview and Purpose
The controller manages user interactions and data flow related to encrypted notes. Key functionalities include:
- Encryption/Decryption: Uses AES-GCM (Advanced Encryption Standard with Galois/Counter Mode) for strong client-side encryption. The user's secret key is stored in
localStorage
. - Key Management: Generates a new AES-256 key if one doesn't exist, allows the user to download the key, display it (with a QR code), and unlock notes with a previously generated key. Includes an option to delete the key from `