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Mobile Information Systems
Volume 2017, Article ID 7469342, 13 pages
Research Article

Distributed Secure Service Composition with Declassification in Mobile Clouds

School of Computer Science and Technology and School of Cyber Engineering, Xidian University, Xian, China

Correspondence should be addressed to Di Lu; moc.361@2002onijin

Received 7 October 2016; Accepted 21 December 2016; Published 14 February 2017

Academic Editor: Changqiao Xu

Copyright © 2017 Ning Xi et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The regional and dynamic characteristics of mobile clouds pose a great challenge on information flow security during service composition. Although secure verification approaches based on standard noninterference provide a solid assurance on information flow security of composite service, too strict constraints on service components may cause the failure of composition procedure. In order to ensure the availability of composite service, we specify the declassification policies based on cryptographic operations to allow data to be legally declassified. And we propose the improved distributed secure service composition framework and approach, which can realize different cloud platforms in multiple domains, cooperate with each other to complete the declassification, and secure composition procedure. Through the experiment and evaluation, it is indicated that our approach provides a more reliable and efficient way for secure service composition in mobile clouds.