The increasing dependence on online file shar-
ing and remote data access has heightened the importance
of developing secure mechanisms to safeguard digital
information. Traditional file storage systems and cloud-
based services often rely on centralized infrastructures
that expose sensitive data to potential threats such as
unauthorized access, data tampering, and insider misuse.
To address these limitations, this paper presents the design
and implementation of a Secure File Access System (SFAS)
developed using open-source web technologies, including
HTML, CSS, and JavaScript for the client interface, and
Node.js with Express.js for the backend server.
The proposed system provides users with secure, au-
thenticated access to files using AES-256 encryption, JSON
Web Token (JWT)–based authentication, and Role-Based
Access Control (RBAC). The backend architecture employs
an event-driven model to handle concurrent requests
efficiently, while the logging and auditing module records
all user activities for accountability and forensic analysis.
Experimental evaluation (fictional) was conducted to
assess the system’s performance in terms of encryption
overhead, authentication speed, and security resilience.
Results indicate an average upload latency of 750 ms and a
93% reduction in unauthorized access attempts compared
to standard unencrypted storage. The results demonstrate
that the Secure File Access System achieves a balanced
trade-off between performance, confidentiality, and user
accessibility, making it a suitable framework for small-
scale organizations and educational institutions requiring
lightweight, secure file management solutions.
发表评论