| Title: | proposition of two cipher structures |
| Author: | Zhang Lei
; Wu Wenling
; Zhang Liting
|
| Source: | Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
|
| Conference Name: | 5th International Conference on Information Security and Cryptology, Inscrypt 2009
|
| Conference Date: | 40878
|
| Issued Date: | 2010
|
| Conference Place: | Beijing, China
|
| Keyword: | Cryptography
; Probability
|
| Publish Place: | Germany
|
| Indexed Type: | EI
|
| ISSN: | 3029743
|
| ISBN: | 3642163416
|
| Department: | (1) State Key Laboratory of Information Security, Institute of Software, Chinese Academy of Sciences, Beijing 100190, China; (2) State Key Laboratory of Information Security, Graduate University of Chinese Academy of Sciences, Beijing 100049, China
|
| Sponsorship: | Institute of Software; Graduate University of the Chinese Academy of Sciences; National Natural Science Foundations of China
|
| English Abstract: | In this paper, we have proposed two block cipher structures which can be considered as variants of SP-network and Generalized Feistel structure respectively. Our main idea is to improve the diffusion effect when mixing all the sub-blocks together in each round. We also show that compared with the original structures, our structures have several important advantages. Then we evaluate the security of our structures against main attacks by estimating the upper bounds for differential and linear probabilities, and also the maximum number of rounds for impossible differential. In the end, we present two example ciphers which are based on the structures proposed, and we also adopt several novel and state-of-the-art design techniques. Then by explaining the design rationales and evaluating the security of the example ciphers under main attack settings, we can conclude that both of our ciphers can achieve enough immunity against known attacks and also have high performances. © 2010 Springer-Verlag. |
| Content Type: | 会议论文
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| URI: | http://ir.iscas.ac.cn/handle/311060/8864
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| Appears in Collections: | 信息安全国家重点实验室_会议论文
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| proposition of two cipher structures.pdf（261KB） | -- | -- | 限制开放 | -- | 联系获取全文 |
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| Recommended Citation: | |
Zhang Lei,Wu Wenling,Zhang Liting. proposition of two cipher structures[C]. 见:5th International Conference on Information Security and Cryptology, Inscrypt 2009. Beijing, China. 40878.
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