Wojciech Rzasa
Computer and Control Engineering Chair
Rzeszow University of Technology
 http://www.kia.prz-rzeszow.pl/

  "Simulation Method for Estimation of Security Overhead
   of Grid Applications"

Cryptography algorithms have become fundamental part of solutions
enabling secure data transmission in the Grid. This data may also be
generated by application and infrastructure monitoring systems.

The security requirements are fulfilled with an additional
communication overhead affecting efficiency of distributed
applications. At the application development stage it is necessary
to evaluate the influence of this overhead on the resource consumption
and execution time of grid applications.

This talk will present a simulation method that enables evaluation
of the overhead as a function of the security level used. The goal is
to enable developers to estimate resource consumption and execution
time and adjust proper security level for an application. The method
is based on a high level intuitive model of the application and
resources. Simulation is enabled by transformation of the model
to executable formalism capable to provide accurate results. In
order to obtain reliable results the Timed Coloured Petri Nets are
applied.