Secure File Storage System

2. Abstract This project, Secure File Storage System, addresses the growing need for secure and efficient file storage. It combines encryption techniques with dynamic file management capabilities to ensure data confidentiality and usability. The project employs modular design principles and integrates data structures and algorithms (DSA) for efficient file operations. This document outlines the design, implementation, testing, and usage of the system.
3. Introduction Purpose: The Secure File Storage System is designed to:

• Safeguard sensitive data through encryption.
• Enable dynamic file operations such as creation, deletion, and searching.
• Provide user authentication to prevent unauthorized access. Importance: In an era of increasing data breaches, this system ensures that sensitive information remains confidential and accessible only to authorized users. By integrating file management with encryption, the project offers a comprehensive solution for secure storage.

4. System Requirements Hardware Requirements: Processor: Intel Core i3 or higher RAM: 4 GB minimum Storage: 1 GB free disk space Software Requirements: Operating System: Windows 10 or higher Compiler: GCC (MinGW for Windows) IDE: Visual Studio Code Dependencies: Standard Template Library (STL) for data structures C++17 or higher
5. System Design Architecture Diagram: The system architecture consists of three layers:
6. Input Layer: Handles user commands and interactions.
7. Processing Layer: Implements encryption, file management, and authentication.
8. Storage Layer: Stores encrypted files securely. Flowchart:
9. User logs in using valid credentials.
10. System authenticates the user.
11. User performs file operations (e.g., create, delete, search).
12. Files are encrypted/decrypted during storage/retrieval. UML Diagram: Include a class diagram showcasing the relationships between key classes, such as EncryptFile, DeleteFile, Login, etc.
13. Implementation Details Coding Techniques:

• Modular Design: Functions are organized into separate .cpp and .h files.
• Dynamic Memory Management: Used linked lists for file tracking.
• Encryption: Simple XOR-based encryption for file security. Frameworks and Libraries: Standard Template Library (STL) for data structures like lists. File handling libraries for disk I/O operations.

7. Testing and Results Test Cases:
8. Authentication:

• Input: Valid username and password.
• Expected Result: User logged in successfully.
• Outcome: Passed

2. File Deletion:

• Input: Delete an existing file.
• Expected Result: File removed from disk and file list.
• Outcome: Passed

Results: Successfully implemented and tested all core functionalities. 8. User Guide Installation:

1. Install GCC compiler and Visual Studio Code.
2. Clone the project repository. Configuration:
3. Ensure all .cpp and .h files are in the same directory.
4. Use the provided tasks.json to configure build tasks in VS Code. Running the Project:
5. Open the terminal in the project folder.
6. Run mainsecurity.exe to start the system.
7. Follow the on-screen instructions for file operations.
8. Conclusion The Secure File Storage System successfully addresses the need for a secure and dynamic file management solution. By integrating encryption, authentication, and efficient file operations, the project ensures data confidentiality and usability. Future enhancements could include advanced encryption standards and multi-user support.
9. References

• C++ Standard Library Documentation
• GCC Compiler Documentation
• [External Tutorials or Articles Used]