CS411 Project 
Kaan Atmaca & Eren Elcin

Project Overview: 
- Details are commented in the code

Phase 1:
- Creation and registiration of the identity key
- Creation and registiration of the signed pre-key
- 10 * OTK generation
- Generating HMAC keys for authentication
- Registiring each OTK to the server

Phase 2:
- Creation of session key by using our private otk and server pub ek
- Key derivation chain by the use of ks 
- Downloading and decrypting messages from pseudo-clients

Phase 3:
- Get otk public from the server and generate ek priv
- Check status of the otks and messages
- Creation of session key
- Key derivation chain by the use of ks 
- Encrpyt the decrypted messages and send it to the pseudo-client
- Check if all correct