Paper 2004/227 Original: eprint.iacr.org/2004/227 ↗
Sign Change Fault Attacks On Elliptic Curve Cryptosystems
Abstract
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.
Metadata
- Available format(s)
PDF- Category
- Public-key cryptography
- Publication info
- Preprint.
- History
- 2004-09-11: last updated
- 2004-09-09: published
- Short URL
- https://ia.cr/2004/227
- License
- https://creativecommons.org/licenses/by/4.0/
BibTeX
@misc{cryptoeprint:2004/227,
author = {Johannes Blömer and Martin Otto and Jean-Pierre Seifert},
title = {Sign Change Fault Attacks On Elliptic Curve Cryptosystems},
howpublished = {Cryptology {ePrint} Archive, Paper 2004/227},
year = {2004},
url = {https://eprint.iacr.org/2004/227}
}