Improved Alpha-Information Bounds for Higher-Order Masked Cryptographic Implementations

被引:2
|
作者
Liu, Yi [1 ]
Beguinot, Julien [1 ]
Cheng, Wei [1 ,2 ]
Guilley, Sylvain [1 ,2 ]
Masure, Loic [3 ]
Rioul, Olivier [1 ]
Standaert, Francois-Xavier [3 ]
机构
[1] Inst Polytech Paris, LTCI, Telecom Paris, F-91120 Palaiseau, France
[2] Secure IC SAS, F-75014 Paris, France
[3] Catholic Univ Louvain, ICTEAM Inst, Louvain, Belgium
来源
2023 IEEE INFORMATION THEORY WORKSHOP, ITW | 2023年
关键词
RENYI;
D O I
10.1109/ITW55543.2023.10161608
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
Embedded cryptographic devices are usually protected against side-channel attacks by masking strategies. In this paper, the security of protected cryptographic implementations is evaluated for any masking order, using alpha-information measures. Universal upper bounds on the probability of success of any type of side-channel attack are derived. These also provide lower bounds on the minimum number of queries required to achieve a given success rate. An important issue, solved in this paper, is to remove the loss factor due to the masking field size.
引用
收藏
页码:81 / 86
页数:6
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