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Building Secure and Fast Selection based Random Key Generation using Programmable Cellular Automata with Check bit

With the popularity of cost-effective and technological advantages of cloud computing play an important role in information enabled services. Due to the lack of security and integrity are the main concerns in cloud and the present authentication mechanism do not provide adequate security in the cloud. Hence, this paper attempts to propose a selection based random key generation using programmable cellular automata for the public cloud which satisfies avalanche diffusion and confusion properties. It is found that by combining non-uniform cellular automata and programmable cellular automata mechanism, a robust master key in the public cloud could be generated. The simulation results show that the proposed method has large key space and protects the conventional brute force attack and chosen plaintext attack in addition to better execution time for accessing cloud data in the distributed environment. The theoretical analysis confirmed that the proposed programmable cellular automata based random key generation solution provides high security.