Location Based Service Applications to secure locations with dual encryption

Location Based Service Applications (LBSAs) are becoming a part of our lives. Through these applications the users can interact with the physical world and get all data they want.eg; Foursquare. But it misuses it in many ways by extracting personal information of users and lead to many threats. To improve the location privacy we use the technique LocX. Here, the location and data related with it are encrypted before store in different servers. So a third party cannot track the location from the server and the server itself cannot see the location. In addition, to improve the security in location points and data points we introduce dual encryption method in LocX. Asymmetric keys are used to encrypt the data with two keys public key and user's private key. But in LocX random inexpensive symmetric keys are used.