Dexios

Abstract

1. Introduction

Dexios will continue to receive updates. Things are stable for the time being and I consider none of the code broken. In the (somewhat) near future I plan to change the backend entirely and give the CLI a re-write, so that things are both easier to maintain and understand. This will regrettably not be backwards-compatible, but the performance improvements and stability guarantees will be extremely worthwhile.

Dexios is a fast, secure, and open source command-line encryption tool. It's written entirely in Rust and prioritises security, performance and convenience the most. It uses modern cryptographic AEADs (XChaCha20-Poly1305 + AES-256-GCM), with audited backends to ensure the safety and integrity of your data. It's extremely easy to use Dexios before uploading your files to a cloud service, to ensure that no prying eyes can read them.

This repo also contains the Dexios-Core and Dexios-Domain libraries

2. Objective

A secure file encryption utility, written in Rust.

This project demonstrates how Rust can be applied to a real-world Cybersecurity & Ethical Hacking problem.

4. Technology Stack

5. System Requirements

General requirements for this technology stack — check the README for exact versions.

• Rust toolchain (rustup / cargo)
• Git (to clone the repository)

6. Installation & Setup

git clone https://github.com/brxken128/dexios.git
cd dexios

Full setup instructions are in the project README.

7. Future Enhancements

Suggested extensions you can add to make this your own project.

• Add logging and alert notifications (email / Telegram)
• Write a threat model document for the tool
• Package it with Docker for safe lab testing

8. Viva / Review Questions

Common questions examiners ask for projects in this domain.

1. Which threat or attack does this project defend against?
2. What detection or protection technique is used and what are its limits?
3. How are false positives and false negatives handled?
4. Which cryptographic algorithms or security standards are involved?
5. What legal and ethical rules apply when testing a tool like this?

9. Source Code & License

This project is developed by brxken128 and published on GitHub under the BSD 2-Clause "Simplified" License. Please follow the license terms and credit the original author when you use or modify this code.