Parallel arithmetic encryption for high-bandwidth communications on multicore/GPGPU platforms

Authors:
Ludovic Jacquin;Vincent Roca;Jean-Louis Roch;Mohamed Al Ali
Affiliations:
INRIA, France;INRIA, France;Laboratoire d'Informatique de Grenoble (LIG), France;Laboratoire d'Informatique de Grenoble (LIG), France
Venue:
Proceedings of the 4th International Workshop on Parallel and Symbolic Computation
Year:
2010

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Abstract

In this work we study the feasibility of high-bandwidth, secure communications on generic machines equipped with the latest CPUs and General-Purpose Graphical Processing Units (GPGPU). We first analyze the suitability of current Nehalem CPU architectures. We show in particular that high performance CPUs are not sufficient by themselves to reach our performance objectives, and that encryption is the main bottleneck. Therefore we also consider the use of GPGPU, and more particularly we measure the bandwidth of the AES ciphering on CUDA. These tests lead us to the conclusion that finding an appropriate solution is extremely difficult.