Be Present, Get Counted: A Secure Dynamic QR/NFC Based Attendance Authentication System

Author(s)	Ms. Sonali Yadav, Mr. Shivam Salve, Mr. Gurudutta Pradhan, Mr. Kamlesh Patidar, Dr. Ankita Gandhi
Country	India
Abstract	This paper presents Be Present, Get Counted, a secure mobile attendance system designed to eliminate proxy attendance using dynamic, encrypted QR codes and NFC-based authentication. The system ensures that only students physically present in the classroom can mark attendance during faculty-controlled sessions. Developed using Android Studio (Java), the solution integrates Firebase Realtime Database for instant synchronization and SQL for long-term storage, offering reliability, automation, and high accuracy. Key features include dynamic session-based QR/NFC tokens, real-time validation, duplicate prevention, live attendance monitoring, and automated Excel report generation. This review evaluates existing attendance systems, highlights security gaps, and demonstrates how dynamic tokenization and hybrid data management address these issues effectively.
Keywords	Dynamic QR, NFC Authentication, Firebase, SQL, Mobile Attendance
Field	Computer > Network / Security
Published In	Volume 17, Issue 2, April-June 2026
Published On	2026-04-18

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