Efficient Implementation of Elliptic Curve Cryptosystems on an ARM7 with Hardware Accelerator

  • Authors:
  • Sheng-Bo Xu;Lejla Batina

  • Affiliations:
  • -;-

  • Venue:
  • ISC '01 Proceedings of the 4th International Conference on Information Security
  • Year:
  • 2001

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Abstract

This paper presents an efficient implementation of elliptic curve cryptosystems over a prime field on ARM7 with the help of a hardware accelerator. The hardware accelerator has two dedicated large number arithmetic units (LNAU's). Three different implementation platforms are considered: ARM7, ARM7 with one LNAU, and ARM7 with two LNAU's. The time costs for performing point multiplication are measured for all three platforms. On ARM7 with 2 LNAU's platform, we achieved the point multiplication in 18 ms with the chip running at 50 MHz clock frequency.