Document Type: Original Article
Department of Computer Engineering. Ahar Branch, Islamic Azad University, Ahar, Iran.
Location Based Services (LBS) has become an important field of research with the rapid development of Internet-based Information Technology (IOT) technology and everywhere we use smartphones and social networks in our everyday lives. Although users can enjoy the flexibility, facility, facility and location-based services (LBS) with the Internet of Things, they may lose their privacy. An untrusted and malicious LBS server can track all user information by using different methods or publish personal information to a third person.