Cryptology ePrint Archive: Report 2019/495

Protecting ECC Against Fault Attacks: The Ring Extension Method Revisited

Marc Joye

Abstract: Due to its shorter key size, elliptic curve cryptography (ECC) is gaining more and more popularity. However, if not properly implemented, the resulting cryptosystems may be susceptible to fault attacks. Over the past few years, several techniques for secure implementations have been published. This paper revisits the ring extension method and its adaptation to the elliptic curve setting.

Category / Keywords: implementation / Elliptic curves; formal groups; degenerate curves, elliptic curve cryptosystems; fault attacks; countermeasures

Original Publication (in the same form): NutMiC 2019

Date: received 14 May 2019, last revised 21 May 2019

Contact author: marc joye at onespan com

Available format(s): PDF | BibTeX Citation

Version: 20190521:082904 (All versions of this report)

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