Tamper-resistant cryptographic hardware

IEICE Electronics Express

Takeshi Fujino¹  Mitsuru Shiozaki²  Takaya Kubota² 

[1] Department of Science and Engineering, Ritsumeikan University;Research Organization of Science and Engineering, Ritsumeikan University

关键词: security;    cryptographic circuit;    tamper resistance;    side channel attack;   

DOI  :  10.1587/elex.14.20162004

学科分类：电子、光学、磁材料

来源: Denshi Jouhou Tsuushin Gakkai

【 摘 要 】

Cryptosystems are widely used for achieving data confidentiality and authenticated access control. Recent cryptographic algorithms such as AES or RSA are computationally safe in the sense that it is practically impossible to reveal key information from a pair of plain and cipher texts if a key of sufficient length is used. A malicious attacker aims to reveal a key by exploiting implementation flaws in cryptographic modules. Even if there are no flaws in the software, the attacker will try to extract a secret key stored in the security hardware. The side-channel attacks (SCAs) are low cost and powerful against cryptographic hardware. The attacker exploits side-channel information such as power or electro-magnetic emission traces on the cryptographic circuits. In this paper, we will introduce the principle of SCAs and the countermeasures against SCAs.

【 授权许可】

CC BY