Registration-and-Login-System using Python-File Handling

Overview

This project presents a secure and user-friendly Registration-and-Login-System implemented in Python, incorporating file handling techniques. Designed for educational purposes, the system offers user registration, login verification, and password retrieval functionalities, ensuring a seamless user experience.

Table of Contents

• Features
• Requirements
• Usage
• Workflow
  • Stage 1: Registration
  • Stage 2: Data Storage
  • Stage 3: Login
• Tools & Skills
• Contribution

Features

• User Registration: The system validates email/username and password inputs, storing user credentials securely in a file.
• User Login: User credentials are verified against stored data, granting access upon successful validation.
• Forgotten Password Retrieval: Users can retrieve passwords by providing their username.

Requirements

• Python 3

Usage

1. Run the ipynb file: Registration_&_Login_System.ipynb
2. Choose between registration or login.
3. Enter your email/username and password as prompted.
   • For registration, valid inputs are stored securely after validation.
   • For login, credentials are cross-checked against stored data.

Workflow

Stage 1: Registration

• Validate email/username:
  • Must contain "@" followed by a "."
  • Cannot have "." immediately after "@"
  • Should not start with special characters or numbers
• Validate password:
  • Must be between 5 and 16 characters
  • Requires at least one special character, digit, uppercase, and lowercase character

Stage 2: Data Storage

• Validated username and password securely stored in a file.

Stage 3: Login

• Validate user-provided username and password against stored data.
  • If credentials do not exist, prompt the user to register.
  • If "forgot password" is chosen, retrieve the original password based on username (if in file) and allow the user to set a new password.
  • If no match is found, guide the user to register.

Tools & Skills

• Python Programming: Developed the entire system using Python.
• File Handling: Implemented secure data storage and retrieval using file handling techniques.
• Data Validation: Ensured user inputs met specific criteria for registration and login.

Contribution

Contributions and suggestions are welcome! Please open an issue or pull request if you have any feedback.