Secure File Access System Android App

Abstract:

The “Secure File Access System Android App” is designed to provide users with a robust platform for securely storing, accessing, and sharing files on their Android devices. The app leverages advanced encryption techniques to ensure that sensitive data remains protected from unauthorized access. With features such as file encryption, secure cloud storage integration, biometric authentication, and access control, the app aims to cater to both personal and professional users who require a high level of security for their files. The primary goal is to offer a user-friendly and highly secure environment for managing confidential documents and files.

Existing System:

In the current market, several file management apps provide basic security features such as password protection and cloud storage integration. However, these apps often fall short in offering comprehensive security measures, leaving files vulnerable to unauthorized access, data breaches, and malware attacks. Existing solutions may lack features such as end-to-end encryption, advanced access controls, or integration with biometric authentication methods. Users often face a trade-off between usability and security, where highly secure systems are often complex and less user-friendly.

Proposed System:

The proposed system will offer a comprehensive secure file management solution that combines ease of use with advanced security features. The app will include robust encryption algorithms to protect files stored on the device or in the cloud. It will support multiple authentication methods, including PINs, passwords, and biometric authentication (fingerprint/face recognition). Users will be able to set access permissions for individual files or folders, ensuring that only authorized users can view or modify them. Additionally, the app will offer secure file sharing options, allowing users to send encrypted files to others with confidence.

Methodology:

1. Requirement Analysis: Conduct surveys and research to identify the specific security needs of target users, including the types of files most often secured and preferred authentication methods.
2. Design:
   • UI/UX Design: Develop a user-friendly interface that balances security with ease of access. Create wireframes and mockups for key features such as file encryption, access control settings, and file management.
   • System Architecture: Design the app’s architecture with a focus on security, ensuring that encryption and authentication mechanisms are seamlessly integrated.
3. Development:
   • Frontend: Build the user interface using Android Studio and Kotlin, ensuring a smooth and intuitive experience for users. Implement features such as file browsing, encryption/decryption, and secure file sharing.
   • Security Implementation: Integrate AES (Advanced Encryption Standard) for file encryption, and implement biometric authentication using Android’s Biometric API. Develop access control features allowing users to set permissions on files and folders.
   • Backend: If cloud storage integration is required, implement secure cloud storage using services like Firebase or AWS S3, with encryption both in transit and at rest.
4. Testing: Conduct rigorous security testing including penetration testing, encryption strength testing, and usability testing to ensure that the app is both secure and user-friendly.
5. Deployment: Publish the app on Google Play Store with clear instructions on usage and security features. Set up analytics to monitor user engagement and security incident logs.
6. Post-Launch Support: Provide regular updates with new security features, patches for any vulnerabilities, and enhancements based on user feedback.

Technologies Used:

• Frontend: Android Studio, Kotlin
• Security: AES-256 encryption, RSA for key management, Android Biometric API for fingerprint/face recognition
• Backend (optional): Firebase for secure cloud storage, Firestore for managing user data and access logs
• Database: SQLite for local file metadata storage
• APIs: Android File API, Android Security API, Firebase Cloud Storage API (if cloud integration is needed)
• Tools: Android Studio, Visual Studio Code (for any backend work), Git for version control
• Testing: OWASP ZAP for security testing, Android Emulator for device testing, Firebase Test Lab for comprehensive testing on real devices