SECURITY OF QR CODE ATTENDANCE USING ADVANCED ENCRYPTION STANDARD METHOD AND LOCATION VALIDATION WITH INTERNATIONAL MOBILE EQUIPMENT IDENTITY (IMEI) VERIFICATION

Attendance is an important process in managing the presence of individuals in a system or organization. In the digital era, QR Codes have become a popular method of doing things verification presence . However, QR security is still a major concern, because QR Codes can easily be reverse-engineered or counterfeited and validation of the location and devices used is needed so that the security and accuracy of attendance activities run as they should. To overcome this problem, this research proposes a QR Code presence security system using the Advanced Encryption Standard (AES) method and location validation and International Mobile Equipment Identity (IMEI) . The AES method is used to encrypt QR Code data before the user scans it, while location validation and IMEI are used to verify the location and device of the person concerned. This research describes the system workflow using activity diagrams and implements a QR Code attendace security system using computer technology. Trials and evaluations were carried out to test the effectiveness and safety as well as validation of the proposed system. The research results show that the proposed system is able to increase the security of QR Code attendace and can carry out location validation, while IMEI can only be used as validation on a maximum Android system version 9.

Keywords: Security, Attendance, QR Code , Advanced Encryption Standard (AES) , IMEI , Encryption, Location Verification, Activity Diagram .