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| biclique cryptanalysis of reduced-round piccolo block cipher | |
| Wang Yanfeng; Wu Wenling; Yu Xiaoli | |
| 2012 | |
| Conference Name | 8th International Conference on Information Security Practice and Experience, ISPEC 2012 |
| Source | Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) |
| Pages | 337-352 |
| Conference Date | April 9, 2012 - April 12, 2012 |
| Conference Place | Hangzhou, China |
| Indexed Type | EI ; SPRINGER |
| ISSN | 0302-9743 |
| ISBN | 9783642291005 |
| Department | (1) State Key Laboratory of Information Security Institute of Software Chinese Academy of Sciences Beijing 100190 China; (2) Graduate University of Chinese Academy of Sciences Beijing 100049 China |
| English Abstract | Piccolo is a lightweight block cipher, with a fixed 64-bit block size and variable key length 80- or 128-bit, which was proposed at CHES 2011. The iterative structure of Piccolo is a variant of Generalized Feistel Network. The transformation utilizing different-size-word based permutation improves diffusion property of Piccolo and the simple key schedule algorithm reduces hardware costs. By analyzing the distribution of the subkeys, we present a biclique cryptanalysis of full round Piccolo-80 without postwhitening keys and 28-round Piccolo-128 without prewhitening keys. The attacks are respectively with data complexity of 248 and 224 chosen ciphertexts, and with time complexity of 278.95 and 2126.79 encryptions. © 2012 Springer-Verlag.; Piccolo is a lightweight block cipher, with a fixed 64-bit block size and variable key length 80- or 128-bit, which was proposed at CHES 2011. The iterative structure of Piccolo is a variant of Generalized Feistel Network. The transformation utilizing different-size-word based permutation improves diffusion property of Piccolo and the simple key schedule algorithm reduces hardware costs. By analyzing the distribution of the subkeys, we present a biclique cryptanalysis of full round Piccolo-80 without postwhitening keys and 28-round Piccolo-128 without prewhitening keys. The attacks are respectively with data complexity of 248 and 224 chosen ciphertexts, and with time complexity of 278.95 and 2126.79 encryptions. © 2012 Springer-Verlag. |
| Keyword | Security Of Data Security Systems |
| Language | 英语 |
| Content Type | 会议论文 |
| URI | http://ir.iscas.ac.cn/handle/311060/15706 |
| Collection | 中国科学院软件研究所 |
| Recommended Citation GB/T 7714 | Wang Yanfeng,Wu Wenling,Yu Xiaoli. biclique cryptanalysis of reduced-round piccolo block cipher[C],2012:337-352. |
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