한국정보통신설비학회:학술대회논문집
- 2008.08a
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- Pages.155-158
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- 2008
Performance Improvement of Power attack with Truncated Differential Cryptanalysis
부정차분을 이용한 전력분석공격 향상
Abstract
In 1989, Kocher et al. introduced Differential Power Attack on block ciphers. This attack allows to extract secret key used in cryptographic computations even if these are executed inside tamper-resistant devices such as smart card. Since 1989, many papers were published to improve resistance of DPA. At FSE 2003 and 2004, Akkar and Goubin presented several masking methods to protect iterated block ciphers such as DES against Differential Power Attack. The idea is to randomize the first few and last few rounds(3