International Journal of Soft Computing and Engineering (IJSCE)
Data privacy has been the primary concern since the distributed database came into the picture. More than two parties have to compile their data for data mining process without revealing to the other parties. Continuous advancement in mobile networks and positioning technologies has created a strong challenge for location-based applications. Challenges resembling location-aware emergency response, location-based advertisement, and location-based entertainment. Privacy protection in pervasive environments has attracted great interests in recent years. Two kinds of privacy issues, location privacy and query privacy, are threatening the security of the users.