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S. A.V. Satya Murty

Work place: Computer Division, Indira Gandhi Centre for Atomic Research, Department of Atomic Energy, Kalpakkam, India

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Research Interests: Computer systems and computational processes, Systems Architecture, Information Security, Network Architecture, Network Security

Biography

S.A.V. Satya Murty did his B.Tech from Jawaharlal Nehru Technical University in 1977, for which he was a university gold medalist. He was awarded the Homi Bhabha prize for securing first position in the one year training course conducted at Bhabha Atomic ResearchCentre (BARC) Training School. He joined IndiraGandhi Centre for Atomic Research (IGCAR) in 1978. He played a key role in the establishment of a mainframe computer system for IGCAR. He was also instrumental in establishing internet and e-mail facilities, Network Security Systems, Campus Network, grid computing facility, etc. at IGCAR. He has more than 110 journal publications/conference proceedings, two chapters in important books and edited two international conference proceedings. He was given out Outstanding Service Award – 2011 by Indian Nuclear Society and Group Achievement Award by DAE in 2012. At present, he is the Director of Electronics, Instrumentation and Radiological Safety Group at IGCAR, and a doctorallevel research scholar with Homi Bhabha National Institute.

Author Articles
Exploiting SIMD Instructions in Modern Microprocessors to Optimize the Performance of Stream Ciphers

By P. Mabin Joseph J. Rajan K.K. Kuriakose S. A.V. Satya Murty

DOI: https://doi.org/10.5815/ijcnis.2013.06.08, Pub. Date: 8 May 2013

Modern microprocessors are loaded with a lot of performance optimization features. Single Instruction Multiple Data (SIMD) instruction set feature specially designed for improving the performance of multimedia applications is one among them. But most of the encryption algorithms do not use these features to its fullest. This paper discusses various optimization principles to be followed by encryption algorithm designers to exploit the features of underlying processor to the maximum. It also analyses the performance of four eSTREAM finalist stream ciphers – HC-128, Rabbit, Salsa 20/12 and Sosemanuk – under various methods of implementation. Scope of implementing these stream ciphers using SIMD instructions is examined and improvement in performance achieved by this implementation has been measured. Modifications in the algorithm which provide further improvement in performance of these ciphers are also studied.

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