The increased pervasiveness of mobile devices like cell phones, PDAs, and laptops draws attention to the need for coordination among these networked devices. The very nature of the...
—Collaborative applications for co-located mobile users can be severely disrupted by a sybil attack to the point of being unusable. Existing decentralized defences have largely b...
Abstract—A person usually carries multiple authentication tokens in the form of various cards to access services electronically. Often the service outlets are equipped with a str...
: Nowadays our world becomes more and more connected, and sensors and any kind of mobile (e.g. cell phones, PDAs) and fixed computational devices are linked together through wired...
Abstract-- Mobile devices are becoming increasingly powerful with regards to processing speed, networking capabilities, storage capacity etc. While these improvements open up new p...