[HGI-News] HGI-Seminar, Montag 24.04.06: Secure Dynamic Web Services Composition

[Newsletter des Horst Görtz Instituts]

                           Melanie Volkamer
 DFKI GmbH - Forschungsbereich Deduktions- und Multiagentensysteme/Security 

              Montag 24. April 2006, 13:15 Uhr IC 4 / 39-41

                 Secure Dynamic Web Services Composition

Today, web services are a powerful concept for providing distributed
electronic services. They allow the dynamic composition of complex
services out of a library of individual services. Functional composition
of complex services is well understood and supported.

However, applying dynamic web service composition in practice requires
appropriate security facilities to guarantee the security requirements
of all participants. On the one hand, web services have to be protected
against misuse of their resources, and on the other hand, the customers
of web services require the privacy of their data. While there are
standard approaches for secure execution of web services which are based
on access control, the SCALLOPS project focuses on privacy.

We described the security policies for the customers and security
specifications of the web services and we formalized how web services
have to deal with provided customer’s and newly created data. Our
methodology is based on type-based information flow control.


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