Abstract
In today’s world most of the applications are based on the location information of users for identifying the
point of interest automatically without the explicit query. Mainly the usages are involving with mobility based devices such
as cell phones, PDSA’s, laptops, GPS based devices etc. The device transmits the location information along with the
device identity to the location server. Sometimes the application demands more data than it actually needs. There is also a
situation where the application uses location information up to certain accuracy. If more accuracy is passed to those
applications than there is a chance of security compromises related to confidentiality, integrity and availability. Thus, there
must privacy based information handling before passing the values to location server. During the last few years there are
various architectural based solutions suggested for serving more privacy in least cost.