[Resource Topic] 2004/227: Sign Change Fault Attacks On Elliptic Curve Cryptosystems

Welcome to the resource topic for 2004/227

Sign Change Fault Attacks On Elliptic Curve Cryptosystems

Authors: Johannes Blömer, Martin Otto, Jean-Pierre Seifert


We present a new type of fault attacks on elliptic curve scalar
multiplications: Sign Change Attacks. These attacks exploit different number representations as they are often employed in modern cryptographic applications. Previously, fault attacks on elliptic curves aimed to force a device to output points which are on a cryptographically weak curve. Such attacks can easily be defended against. Our attack produces points which do not leave the curve and are not easily detected. The paper also presents a revised scalar multiplication algorithm that provably protects against Sign Change Attacks.

ePrint: https://eprint.iacr.org/2004/227

See all topics related to this paper.

Feel free to post resources that are related to this paper below.

Example resources include: implementations, explanation materials, talks, slides, links to previous discussions on other websites.

For more information, see the rules for Resource Topics .