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Security as a Service Model for Cloud Environment

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2 Author(s)
Vijay Varadharajan ; Adv. Cyber Security Res. Centre, Macquarie Univ., Sydney, NSW, Australia ; Udaya Tupakula

Cloud computing is becoming increasingly important for provision of services and storage of data in the Internet. However there are several significant challenges in securing cloud infrastructures from different types of attacks. The focus of this paper is on the security services that a cloud provider can offer as part of its infrastructure to its customers (tenants) to counteract these attacks. Our main contribution is a security architecture that provides a flexible security as a service model that a cloud provider can offer to its tenants and customers of its tenants. Our security as a service model while offering a baseline security to the provider to protect its own cloud infrastructure also provides flexibility to tenants to have additional security functionalities that suit their security requirements. The paper describes the design of the security architecture and discusses how different types of attacks are counteracted by the proposed architecture. We have implemented the security architecture and the paper discusses analysis and performance evaluation results.

Published in:

IEEE Transactions on Network and Service Management  (Volume:11 ,  Issue: 1 )