Enforcing integrity of execution in distributed workflow management systems

Montagut, Frédéric; Molva, Refik
SCC 2007, 4th IEEE International Conference on Services Computing, July 9-13, 2007, Salt Lake City, USA

As opposed to centralized workflow management systems,
the distributed execution of workflows can not rely
on a trusted centralized point of coordination. As a result,
this flexible decentralized setting raises specific security requirements,
such as the compliance of the overall sequence
of operations with the pre-defined workflow execution plan,
that are not yet met by existing decentralized workflow infrastructures.
In this paper, we propose new security mechanisms
capitalizing on onion encryption techniques and security
policy models in order to assure the integrity of the
distributed execution of workflows and to prevent workflow
instance forging to name a few features. These mechanisms
can easily be integrated into distributed workflow management
systems as our design is strongly coupled with the runtime
specification of decentralized workflows.

Salt Lake City
Digital Security
Eurecom Ref:
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