Skip to main content
Article thumbnail
Location of Repository

High-order Attacks against the Exponent Splitting Protection

By Frédéric Muller and Frédéric Valette

Abstract

Abstract. Exponent splitting is a classical technique to protect modular exponentiation against side-channel attacks. Although it is rarely implemented due to efficiency reasons, it is widely considered as a highlysecure solution. Therefore it is often used as a reference to benchmark new countermeasure proposals. In this paper, we make new observations about the statistical behavior of the splitting of the exponent. We look at the correlations between the two shares, and show an important imbalance. Later, we show how to use this imbalance in higher-order attacks (mostly based on address-bit, safe-error and fault analysis). We also present experimental results to estimate their feasibility.

Year: 2014
OAI identifier: oai:CiteSeerX.psu:10.1.1.415.1981
Provided by: CiteSeerX
Download PDF:
Sorry, we are unable to provide the full text but you may find it at the following location(s):
  • http://citeseerx.ist.psu.edu/v... (external link)
  • http://www.iacr.org/cryptodb/a... (external link)
  • Suggested articles


    To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.