Abstract: Smart posters are a promising new use case for NFC-enabled mobile devices. A secure smart poster system consisting of three parts: an administrative web interface for managing posters, a backend server for storing and serving data, as well as an Android application for end-users. This project enforces and integrity of smart poster data as well as authentication/authorization of administrators and end-users, thus ensuring that only authorized users can access the content. This project is useful for secure sharing of college assignments. First the NFC Smart Poster is designed by admin. NFC tag contains information; the tag can be embedded into the object. For example, the poster is created for first year student and it contains information about assignment. The object can be placed to notice board. When the first year student touch his android mobile phone to tag, it will connect to server. After that authentication server will check the details of student and also check whether the student is first year student. If yes, then it will share that assignment information with student. We present S-SPAN - a secure smart poster system consisting of three parts: an administrative web interface for managing posters, a backend server for storing and serving data, as well as an Android application for end-users. S-SPAN enforces confidentiality and integrity of smart poster data as well as authentication/authorization of administrators and end-users, thus ensuring that only authorized users can access the content.

Keywords: Near field communication, secured smart poster authentication using NFC.