Hardware Based Attendance System Using Blockchain

Current attendance systems suffer from several issues, such as being paper-based which makes it difficult to maintain and record data accurately. Furthermore, it is possible for students or employees to record the attendance of others who are not present. Digital attendance systems based on biometric features like fingerprints or faces exist, but they are centralized and susceptible to manipulation by a centralized entity. To address this issue, there is a need for a decentralized system that utilizes cryptography to ensure that only the person who is present can mark their attendance. In our proposed system, both the operator and member have their own private keys, and only together can they mark the attendance. This system ensures that attendance can only be marked by the student who is present using their own private key, which cannot be shared, and if attempted, the private key will be locked. The proposed system adds a proof of attendance for the member, allowing them to generate unique signatures that can identify attendees on any decentralized record.