User Privacy Preservation in Mobile Cloud Computing by Two Levels of Spatial Cloaking

Abstract-The world of Mobile grows day-by-day, even hourly basis to attracts and sustain the mobile users with all types of computing applications. To enrich its capability for giving more computing power mobile combined with the giant of computing world cloud, and derived a novel term ‘Mobile Cloud Computing ’ (MCC). Mobile Cloud Computing means to provide the facility to use mobile phone as an information processing system. Mobile phone will act as a floating server in near future. The mobile serves the users with plenty of services which include location-based services. Users ’ fear to disclose their exact privacy information to the untrusting location based servers is a barrier to get full strength usage of such services. Anonymity based technique cloaking serves at an extend to protect users privacy. Cloud based Cloaking takes the cloaking task to cloud and freed the mobile from the risk of battery run out by heavy computation task of cloaking. Even though results show it uses less mobile memory and low battery consumption the user has to take risk of trusting third party’s cloud instead of location-based servers. To overcome this risk of revealing privacy information to the cloud, make a small level cloaking at mobile phone and a higher level of cloaking at cloud. This two level cloaking improves the trust factor without giving more computational load to the mobile device