A tiny RSA coprocessor based on optimized systolic Montgomery architecture

Zongbin Liu, Luning Xia, Jiwu Jing, Peng Liu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations

Abstract

In this paper we propose a new hardware architecture of modular exponentiation, which is based on the optimized Montgomery multiplication. At CHES 1999, Tenca introduced a new architecture for implementing the Montgomery multiplication which was later improved by Huang et al. at PKC 2008. In this paper we improve the architecture of Huang and the improved one occupies less hardware resource, at the same time we add the final subtraction of the Montgomery algorithm into the architecture in order to do the exponentiation computation. Finally we use this improved architecture to build a RSA coprocessor. Compared with the previous work, the new 1024-bit RSA coprocessor saved nearly 50% of area, and the area utilization is greatly improved. This design is the smallest design as we know in the literature, and we verified the correctness by huge test data.

Original languageEnglish (US)
Title of host publicationSECRYPT 2011 - Proceedings of the International Conference on Security and Cryptography
Pages105-113
Number of pages9
StatePublished - Sep 12 2011
EventInternational Conference on Security and Cryptography, SECRYPT 2011 - Seville, Spain
Duration: Jul 18 2011Jul 21 2011

Publication series

NameSECRYPT 2011 - Proceedings of the International Conference on Security and Cryptography

Other

OtherInternational Conference on Security and Cryptography, SECRYPT 2011
CountrySpain
CitySeville
Period7/18/117/21/11

All Science Journal Classification (ASJC) codes

  • Computer Science Applications
  • Theoretical Computer Science

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    Liu, Z., Xia, L., Jing, J., & Liu, P. (2011). A tiny RSA coprocessor based on optimized systolic Montgomery architecture. In SECRYPT 2011 - Proceedings of the International Conference on Security and Cryptography (pp. 105-113). (SECRYPT 2011 - Proceedings of the International Conference on Security and Cryptography).