Recently, Chien proposed an ultralightweight RFID authentication protocol to prevent all possible attacks. However, we find two de-synchronization attacks to break the protocol. K...
In this paper we show that the problem to decide whether the hamiltonian index of a given graph is less or equal to a given constant is ∗ Research supported by grants No. 1M0545...
“Gamification” is an informal umbrella term for the use of video game elements in non-gaming systems to improve user experience (UX) and user engagement.
Sebastian Deterding, Miguel Sicart, Lennart Nacke,...
Over the past 15 years, children have become more integrally involved in the design of their technology. In this paper, we present the idea that design partnering methods, specific...
We show that any point in the convex hull of each of (d +1) sets of (d +1) points in general position in Rd is contained in at least (d + 1)2/2 simplices with one vertex from each ...