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Implementation of a parallel XTS encryption mode of operation

Alomari, Mohammad Ahmed and Samsudin, Khairulmizam and Ramli, Abdul Rahman (2014) Implementation of a parallel XTS encryption mode of operation. Indian Journal of Science and Technology, 7 (11). pp. 1813-1819. ISSN 0974-6846; ESSN: 0974-5645

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Abstract

Security of data stored inside storage devices is becoming one of the main issues in computer security now. It is known that the most efficient techniques to protect storage devices are using cryptography. Developing newer and more secure encryption algorithms and modes of operation might be critically important to protect these devices since conventional disk encryption algorithms, such as CBC mode, have shown serious security flaws. In this paper, the IEEE XTS encryption mode of operation for storage encryption (P1619 standard) has been implemented using parallel design. A performance comparison between the sequential and parallel algorithms of XTS mode is presented here. Parallel overheads that prevented from achieving perfect linear speedup are measured and minimized. The parallel XTS algorithm has shown a speedup of 1.80, with 90% efficiency, faster than the sequential algorithm. In these simulations, AES is used as encryption algorithm with 256-bit encryption key.

Item Type:Article
Keyword:Disk encryption; Encryption modes; Parallel processing; XTS mode
Faculty or Institute:Faculty of Engineering
Publisher:Indian Society for Education and Environment
ID Code:37962
Deposited By: Nabilah Mustapa
Deposited On:29 Dec 2015 18:48
Last Modified:29 Dec 2015 18:48

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