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- W2142401265 abstract "DES 확장키를 이용하여 가변 P box를 생성하고 이용하는 블록암호를 제안하였다. 매 라운드마다 가변 P box를 구현할 때 효율적으로 실행 할 수 있는 방안도 제시하였다. 차분 공격과 선형 공격에 관한 반례를 제시함으로 제안된 알고리즘이 기존의 두 공격으로부터 안전함을 보였다. 제안된 알고리즘과 3중 DES(3DES)에서 사용되는 실 키 길이 비교는 전수공격 측면에서 제안된 알고리즘이 3DES보다 더 안전함을 보인다. 3DES와 제안된 알고리즘의 컴퓨터 실험 결과 암호처리 속도측면에서 제안된 알고리즘이 3DES보다 3배정도 빠름을 보였다. Using an expanded DES key, we suggest a block cipher algorithm to generate and to use a variable P box. We also present an efficient way for the implementation of variable P box at each round. Using counter examples on Differential Cryptanalysis(DC) and Linear Cryptanalysis(LC), we show that the suggested algorithm is strong enough to overcome those attacks. Compared with the real key bits of triple DES(3DES), the new algorithm is much safer in the points of the exhaustive attack. The results of computer simulations show that the new algorithm is almost 3 times faster than 3DES regarding the cipher process time." @default.
- W2142401265 created "2016-06-24" @default.
- W2142401265 creator A5077437724 @default.
- W2142401265 date "2011-10-31" @default.
- W2142401265 modified "2023-10-18" @default.
- W2142401265 title "A Study on a Variable P box Generation Using a DES Key Expansion" @default.
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- W2142401265 doi "https://doi.org/10.3745/kipstc.2011.18c.5.287" @default.
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