Make the Chats end-to-end Encrypted

[Hadeso-0]

How to approach

1. When creating the account, the user generates a public and private key pair and saves them in local storage.
2. The user then sends the public key to the server alongside his credentials. THE PRIVATE KEY IS NOT SHARED WITH ANYONE
3. The server receives the user's credentials and his public key, generates a certificate out of the public key, and saves the user in the server.
4. Each time user_A wants to chat with user_B, the server sends user_B's certificate to user_A and vice versa. Each user saves the other's certificate in their local storage to be able to encrypt messages and send them.
5. The ENCRYPTED messages are saved in Monge DB.

Ref:

• https://github.com/muke1908/chat-e2ee
• https://github.com/VertikaJain/react-chat-app
• https://github.com/signalapp/libsignal-protocol-javascript
• https://docs.lens.xyz/docs/encrypted-dms [ Web3 Approach ]

Pre-reqs [ Encryption Algorithms ]:

• Diffie-Hellman Key Exchange Algorithm
• Extended Triple Diffie-Hellman (X3DH)
• Double Ratchet Mechanism