Michael Hafner
University of Innsbruck
41 Papers
764 Citations
Michael Hafner is an academic researcher from University of Innsbruck. The author has contributed to research in topics: Web service & Computer security model. The author has an hindex of 20, co-authored 41 publications.
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Papers
From inter-organizational workflows to process execution: generating BPEL from WS-CDL
Jan Mendling,Michael Hafner +1 more
- 31 Oct 2005
TL;DR: This paper shows how BPEL process definitions of parties involved in a choreography can be derived from the global WS-CDL model and implemented a prototype of the mappings as a proof of concept.
A general obligation model and continuity: enhanced policy enforcement engine for usage control
Basel Katt,Xinwen Zhang,Ruth Breu,Michael Hafner,Jean-Pierre Seifert +4 more
- 11 Jun 2008
TL;DR: The core UCON model is extended with continuous usage sessions thus extensively augment the expressiveness of obligations in UCON, and a general, continuity-enhanced and configurable usage control enforcement engine is proposed.
Sectet: an extensible framework for the realization of secure inter‐organizational workflows
TL;DR: In this article, the authors present the core components of a framework and illustrate the main concepts of a methodology for the systematic design and realization of security-critical interorganizational workflows with a portion of a workflow-scenario drawn from eGovernment.
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•Proceedings Article
SECTET – An Extensible Framework for the Realization of Secure Inter-Organizational Workflows
Michael Hafner,Ruth Breu,Berthold Agreiter,Andrea Nowak +3 more
- 01 Jan 2006
TL;DR: The core components of a framework are presented and how the framework can be adapted to incorporate advanced security patterns like the Qualified Signature, which extends the concept of digital signature by requiring a natural person to sign.
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Model driven security for inter-organizational workflows in e-government
Ruth Breu,Michael Hafner,Barbara Weber,Andrea Novak +3 more
- 02 Mar 2005
TL;DR: This work focuses on the realization of security-critical inter-organizational workflows in the context of web services and web service orchestration in e-government.
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