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pSHS: A scalable parallel software implementation of Montgomery multiplication for multicore systems

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2 Author(s)
Zhimin Chen ; Dept. of Electr. & Comput. Eng., Virginia Tech, Blacksburg, VA, USA ; Schaumont, P.

Parallel programming techniques have become one of the great challenges in the transition from single-core to multicore architectures. In this paper, we investigate the parallelization of the Montgomery multiplication, a very common and time-consuming primitive in public-key cryptography. A scalable parallel programming scheme, called pSHS, is presented to map the Montgomery multiplication to a general multicore architecture. The pSHS scheme offers a considerable speedup. Based on 2-, 4-, and 8-core systems, the speedup of a parallelized 2048-bit Montgomery multiplication is 1.98, 3.74, and 6.53, respectively. pSHS delivers stable performance, high portability, high throughput and low latency over different multicore systems. These make pSHS a good candidate for public-key software implementations, including RSA, DSA, and ECC, based on general multicore platforms. We present a detailed analysis of pSHS, and verify it on dual-core, quad-core and eight-core prototypes.

Published in:

Design, Automation & Test in Europe Conference & Exhibition (DATE), 2010

Date of Conference:

8-12 March 2010

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