Evaluating the Effectiveness of End-to-End Encryption in Mobile Applications for Secure Data Exchange

Abstract

Cyberattacks, data breaches, and weakly authenticated systems all progressively endanger the safety of private data in the interconnected digital ecosystem of today. Modern security needs cannot be satisfied by traditional password management systems or manual encryption techniques. Trying to protect data both during transmission and at the destination, this work presents an automated end-to-end encryption system especially designed for mobile apps. For stateless session management, the suggested system combines bcrypt-based password hash with AES-128 (advanced encryption standard with a 128-bit key). It also provides a complete security architecture by including safe file/message upload capability and two-Factor Authentication (2FA).

With the help of OpenSSL, the system automates key creation and exchange to overcome important management issues, hence substantially lowering the possibility of risk due to human mistakes. Developed and tested with Flask and SQLite, a functional prototype has passed performance checks in practical situations. The results show that the system retains effective communication in mobile situations and improves security and usability altogether. This approach represents a major progress towards practical and scalable cryptographic security for mobile data exchanges.