Science & Engineering Research Support soCiety (SERSC)
Recently user privacy becomes an important security goal in most computer applications especially in context aware services. One of the most popular services in this field is Location-Based Services (LBSs) that deliver the desired data based on the user's location. Although these services make the life easier, they lead to a privacy risk. To get the desired services, a user should disclose their location; so their location privacy is threatened. In this paper, the authors consider a group of users who wants to use a location-based service while preserving their location privacy.