"Word of Wisdom" tcp server (protected from DDOS attacks with the Proof of Work).

Task

Design and implement "Word of Wisdom" tcp server:

• TCP server should be protected from DDOS attacks with the Prof of Work (https://en.wikipedia.org/wiki/Proof_of_work), the challenge-response protocol should be used.
• The choice of the POW algorithm should be explained.
• After Prof Of Work verification, server should send one of the quotes from “word of wisdom” book or any other collection of the quotes.
• Docker file should be provided both for the server and for the client that solves the POW challenge.

Getting started

Project based on Clean architecture principles.

Requirements:

• Go 1.19+ installed (to run tests, start server or client without Docker)
• Docker installed (to run docker-compose)
• Environment file .env (see example in env.example)

# Run server and client by docker-compose
make run-compose

# Run only server
make run-server

# Run only client
make run-client

# other command - call help
make help

Resources

• Word of Wisdom
• Proof of work
• Hashcash
• Distributed Consensus – Proof-of-Work
• The Clean Architecture