Security of prime field pairing cryptoprocessor against differential power attack

  • Authors:
  • Santosh Ghosh;Dipanwita Roychowdhury

  • Affiliations:
  • Department of Computer Science and Engineering, Indian Institute of Technology, Kharagpur, India;Department of Computer Science and Engineering, Indian Institute of Technology, Kharagpur, India

  • Venue:
  • InfoSecHiComNet'11 Proceedings of the First international conference on Security aspects in information technology
  • Year:
  • 2011

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Abstract

This paper deals with the differential power attack on a pairing cryptoprocessor. The cryptoprocessor is designed for pairing computations on elliptic curves defined over finite fields with large prime characteristic. The work pinpoints the vulnerabilities of such pairing computations against side-channel attacks. By exploiting the power consumptions, the paper experimentally demonstrates such vulnerability on FPGA platform. A suitable counteracting technique is also suggested to overcome such vulnerability.