In this paper, we examine a supply chain in which a single supplier sells to a downstream retailer. We consider a multi-period model, with the following sequence of events. In per...
Due to the wide deployment of sensor networks recently security in sensor networks has become a hot research topic. Popular ways to secure a sensor network are by including crypto...
Electronic Transactions over the Internet, particularly using the World Wide Web have become an integral part of economic life. Recently also the public sector has started to use ...
Hypermedia systems (whether web sites or not) should support multilevel policiesm, offering different views and manipulation abilities of the same information to users with differ...
Traditional database security mechanisms are very limited in defending against data attacks. Authorized but malicious transactions can make a database useless by impairing its int...