In this paper we shall introduce a new electronic payment concept based on the popular direct debit payment model, entitled periodical payments. The direct debit model currently i...
Abstract—While mechanisms exist to instantiate common security functionality such as confidentiality and integrity, little has been done to define a mechanism for identificati...
A “blocker” tag is a form of privacy-enhancing radio-frequency identification (RFID) tag. It operates by interfering with the protocol in which a reader communicates individua...
It is difficult to write programs that behave correctly in the presence of run-time errors. Existing programming language features often provide poor support for executing clean-u...
In mobile computing environments, as a result of the reduced capacity of local storage, it is commonly not feasible to replicate entire datasets on each mobile unit. In addition, ...