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Security and Privacy Challenges in Cloud Computing: A Road Ahead

Salasiah Abdullah & Khairul Azmi Abu Bakar

Abstract

Cloud computing plays a crucial role in supporting the virtualization synergy as there is
a large-scale demand among users in adopting cloud solutions. However, preserving
the security of storage while maintaining users’ privacy brings new challenges in
protecting cloud computing from illegal access and shared network environment. Thus,
Risk-Adaptable Access Control (RAdAC) is known within privacy-preserving perspective
as a flexible prospect in managing exceptional access request and reacting to
suspicious user. However, most of the previous work on the cloud security focused on
storage security rather than anonymity of user nor identification protection. This paper
explores the fundamental concept of cloud computing architecture and identifies the
security requirements in cloud. In this work, the prerequisite elements in RAdAC
framework has been discussed precisely and ambiguity factor is found in protecting
privacy of user. Thus, we proposed the viable two-factor authentication scheme in
RAdAC for future road ahead in cloud industry.

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