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Evaluating the Probability of Malicious Co-residency in Public Clouds

Lookup NU author(s): Dr Paul Ezhilchelvan, Emeritus Professor Isi Mitrani



We examine a system where servers can host several virtual machines in parallel and where some of the users are malicious. Arrivals and departures of both normal and malicious users are governed by random processes. The aim is to estimate the probability that a possible target will find itself sharing a server with an attacker. Two allocation policies for assigning virtual machines to servers are studied. In both cases, as well as attacks forming part of the arrival process, multiple simultaneous attacks are considered. Closed-form expressions for the desired estimates are obtained. Comparisons with simulations for purposes of validation are presented and the effect of increasing the number of available servers is illustrated.

Publication metadata

Author(s): Ezhilchelvan P, Mitrani I

Publication type: Article

Publication status: Published

Journal: IEEE Transactions on Cloud Computing

Year: 2017

Volume: 5

Issue: 3

Pages: 420-427

Print publication date: 01/07/2017

Online publication date: 01/07/2015

Acceptance date: 01/01/1900

Date deposited: 15/12/2015

ISSN (electronic): 2168-7161

Publisher: IEEE


DOI: 10.1109/TCC.2015.2451633


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