GPS-SEC

Position & time awareness is one of the fundamental components of ubiquitous computing. Sophisticated mobile applications utilize location and time information to confirm, set aside and grant activities. GPS is one of the global position and time information service provider and increases the quality of the context of the ubiquitous computing with enhanced serviceability. GPS encompasses space, ground and user segments. Since the data confidentiality is not a primary concern of GPS, spoofing of navigational data is a straightforward attack type of the malicious users to falsify user segment. There are several studies for counter-spoofing for GPS data falsification threat, but they require additional hardware in receiver side or modification of the ground or space segments. In this paper, we propose a simple method to amend the current GPS structure without additional hardware to mitigate spoofing.