Trust model for optimized cloud services

Pawar, P. S.; Rajarajan, M.; Krishnan Nair, S. and Zisman, A. (2012). Trust model for optimized cloud services. In: Trust Management VI: 6th IFIP WG 11.11 International Conference, IFIPTM 2012, Surat, India, May 21-25, 2012. Proceedings, IFIP Advances in Information and Communication Technology, Springer Berlin Heidelberg, pp. 97–112.

DOI: https://doi.org/10.1007/978-3-642-29852-3_7

URL: http://conf2012.ifiptm.org/

Abstract

Cloud computing with its inherent advantages draws attention for business critical applications, but concurrently expects high level of trust in cloud service providers. Reputation-based trust is emerging as a good choice to model trust of cloud service providers based on available evidence. Many exist- ing reputation based systems either ignore or give less importance to uncertain- ty linked with the evidence. In this paper, we propose an uncertainty model and define our approach to compute opinion for cloud service providers. Using sub- jective logic operators along with the computed opinion values, we propose mechanisms to calculate the reputation of cloud service providers. We evaluate and compare our proposed model with existing reputation models.

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