Abstract
One way to ensure reliable and secure composite web service delivery is by making them autonomous (i.e., become self-managing services, where they can be self-organizing, self-healing, self-optimizing, and self-protecting). The CRESCENT framework was previously proposed towards achieving such vision. It managed to satisfy the first three properties, but did not handle the self-protection property. To overcome such limitation, this paper extends CRESCENT and proposes CRESCENT+; a self-protecting framework for reliable composite web service delivery. This is done by performing vulnerability analysis to identify CRESCENT weaknesses, then performing a STRIDE-based threat analysis to identify possible attacks on CRESCENT, and finally proposing different solutions and countermeasures to be integrated into CRESCENT to overcome such problems. Experimental results show that CRESCENT+ increased the reliability of the CRESCENT framework trading off the overall throughput. However, we argue that such loss in the overall throughput is still acceptable as a price for having autonomous composite web services; especially, the obtained overall throughput is still higher than existing industrial standards.
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