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Journal Article One-Bit to Four-Bit Dual Conversion for Security Enhancement against Power Analysis
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Authors
Seungkwang LEE, Nam-Su JHO
Issue Date
2016-10
Citation
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, v.E99.A, no.10, pp.1833-1842
ISSN
1745-1337
Publisher
일본, 전자정보통신학회 (IEICE)
Language
English
Type
Journal Article
DOI
https://dx.doi.org/10.1587/transfun.E99.A.1833
Abstract
Power analysis exploits the leaked information gained from cryptographic devices including, but not limited to, power consumption generated during cryptographic operations. If a number of power traces are given to an attacker, it is possible to reveal a cryptographic key efficiently, sometimes within a few minutes, using various statistical methods. In this sense, software countermeasures including higher-order masking or software dual-rail with precharge logic have been proposed to produce randomized or constant power consumption during the key-dependent operations. However, they have critical disadvantages in terms of computational time and security. In this paper, we propose a new solution called "one-bit to four-bit dual conversion" for enhanced security against power analysis. For an exemplary embodiment of the proposed scheme, we apply it to an AES implementation and demonstrate its security and performance. The overall costs are approximately 148 KB memory space for the lookup tables and about a 3-fold increase in execution time than the straightforward implementation of AES.
KSP Keywords
AES implementation, Computational time, Dual-rail, Enhanced security, Higher-order masking, Key-dependent, Look up tables(LUTs), Memory space, Power Analysis, Power Consumption, Precharge logic