Hierarchies are powerful tools for decomposing complex control tasks into manageable subtasks. Several hierarchical approaches have been proposed for creating agents that can exec...
Abstract: The emerging penetration of IT architectures with XML leads to increasing XML data volumes. Available tools often fail in realizing scalable XML processing for large XML ...
Network based intruders seldom attack directly from their own hosts, but rather stage their attacks through intermediate “stepping stones” to conceal their identity and origin...
After the Code Red incident in 2001 and the SQL Slammer in January 2003, it is clear that a simple self-propagating worm can quickly spread across the Internet, infects most vulne...
In PODC 2003, Park, Chong, Siegel and Ray [22] proposed an optimistic protocol for fair exchange, based on RSA signatures. We show that their protocol is totally breakable already...