AES Note

A secure, serverless encrypted note storage service built on Cloudflare Workers with AES-GCM encryption.

Features

• AES-GCM Encryption: All notes are encrypted using AES-GCM with SHA-256 derived keys
• Auto-expiring: Notes automatically expire after 7 days
• Password Protection: Use your own password or let the system generate a random one
• Zero-knowledge: Encryption happens on the server, passwords are never stored
• Simple Web UI: Built-in interface for easy note management

API Endpoints

POST /save

Save a new encrypted note.

Request Body:

{
  "content": "Your secret text here",
  "password": "optional-password"
}

Response:

{
  "id": "uuid",
  "password": "used-password",
  "isGenerated": true,
  "success": true
}

GET /get/:id?password=xxx

Retrieve and decrypt a note.

Parameters:

• id: The note UUID
• password: The password used during encryption

Deployment

1. Install dependencies:

npm install

2. Configure wrangler.toml with your KV namespace ID

3. Deploy to Cloudflare Workers:

npx wrangler deploy

Tech Stack

• Cloudflare Workers
• Cloudflare KV
• TypeScript
• Web Crypto API

License

ISC