Harnessing Biased Faults in Attacks on ECC-Based Signature Schemes

K. Järvinen, Céline Blondeau, D. Page, Michael Tunstall
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引用次数: 10

Abstract

This paper presents an extension of the byte-fault attack on signature schemes presented by Giraud et al. Our work extends their attack in a number of ways, but the main focus is an alternative fault model motivated by existing fault injection results. Instead of assuming faults are uniformly distributed (i.e., a given bit is flipped with probability 1/2), we consider the case where faults are biased (i.e., the probability differs from 1/2). Our results show that injecting biased faults allows an attacker to reveal security-critical data with significantly fewer faults and/or a significantly faster search through the remaining candidates.
基于ecc的签名方案攻击中的偏差故障处理
本文对Giraud等人提出的签名方案中的字节错误攻击进行了扩展。我们的工作以多种方式扩展了它们的攻击,但主要关注的是由现有故障注入结果驱动的替代故障模型。我们不假设故障是均匀分布的(即,给定的位以1/2的概率翻转),而是考虑故障是偏置的情况(即,概率不同于1/2)。我们的结果表明,注入有偏差的错误允许攻击者以更少的错误和/或更快的速度搜索剩余的候选数据来揭示安全关键数据。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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