Two Factor Auth

Two Factor Authentication Java code implementing the Time-based One-time Password Algorithm

Cybersecurity & Ethical HackingJavaISC

Abstract

Two Factor Auth is an open-source Cybersecurity & Ethical Hacking project. Two Factor Authentication Java code implementing the Time-based One-time Password Algorithm. 2 Factor Authentication (2FA) Java code which used the Time-based One-time Password (TOTP) algorithm. You can use this code with the Google Authenticator mobile app or the Authy mobile or browser app. It is built using Java. The complete source code is publicly available on GitHub under the ISC License, making it a useful reference for students building a Cybersecurity & Ethical Hacking mini project or final-year project.

1. Introduction

2 Factor Authentication (2FA) Java code which used the Time-based One-time Password (TOTP) algorithm. You can use this code with the Google Authenticator mobile app or the Authy mobile or browser app.

2. Objective

Two Factor Authentication Java code implementing the Time-based One-time Password Algorithm

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

4. Technology Stack

Java

5. System Requirements

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

  • JDK 11 or later
  • Maven / Gradle
  • IntelliJ IDEA, Eclipse or Android Studio
  • Git (to clone the repository)

6. Installation & Setup

git clone https://github.com/j256/two-factor-auth.git
cd two-factor-auth

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 j256 and published on GitHub under the ISC License. Please follow the license terms and credit the original author when you use or modify this code.

View Source on GitHubDownload ZIP

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