Crypto server

This is a POC using Pyodide to execute Python code in the browser to encrypt a message client-side and decrypt it server-side.

How it works

Using the same cryptography Python package on the client and server, we first encrypt a message client-side using the generated RSA public key (GET /key). The encrypted message is sent to the server via the POST /msg endpoint and is decrypted using the RSA private key.

127.0.0.1 - - [04/May/2022 16:15:33] "GET /key HTTP/1.1" 200 -
[2022-05-04 16:15:34,209] INFO in controller: MESSAGE RECEIVED:
[2022-05-04 16:15:34,209] INFO in controller: This is my super secret message!
127.0.0.1 - - [04/May/2022 16:15:34] "POST /msg HTTP/1.1" 200 -

Setup

Tested with Python 3.8.

pip install -r requirements.txt

python generate_keys.py

python server.py

Open Chrome to http://localhost:3000/