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Building dynamic and transparent integrity measurement and protection for virtualized platform in cloud computing
Author(s) -
Cheng Ge,
Jin Hai,
Zou Deqing,
Zhang Xinwen
Publication year - 2010
Publication title -
concurrency and computation: practice and experience
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.309
H-Index - 67
eISSN - 1532-0634
pISSN - 1532-0626
DOI - 10.1002/cpe.1614
Subject(s) - cloud computing , computer science , overhead (engineering) , software , architecture , data integrity , operating system , computer security , embedded system , distributed computing , art , visual arts
In the cloud computing infrastructure, there is an increasing demand to maintain and verify the integrity of software stacks running on remote systems and protect users' sensitive data. However, due to the fact that software stacks running on cloud platforms are usually provided and maintained by different authorities (or providers) who are potentially untrusting to each other, the problem of measuring and protecting runtime system integrity becomes very challenging and has not been well addressed yet. In this paper, we present an integrity measurement and protection architecture for software stacks running on a guest operating system (OS) of a virtualized platform in cloud environment. Our solution does not change the guest OS, and thus is transparent to the OS authority. Furthermore, our architecture ensures that sensitive information of users is protected once the integrity of software stacks is broken during runtime. We implement our solution on Xen, and present a simple prototype‐based Nimbus. We demonstrate the capability of dynamically detecting the integrity change of programs in cloud computing, and our evaluation results show that the solution is effective for integrity protection with acceptable performance overhead. Copyright © 2010 John Wiley & Sons, Ltd.