Differential security evaluation of Piccolo-like structure
In order to diversify the design of block cipher, Piccolo-like structure was proposed with principles of design.Security evaluation for Piccolo-like structure against differential cryptanalysis was deeply studied.By studying the input-output propagation characteristics of differential characteristic...
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| Main Authors: | , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Department of Journal on Communications
2022-02-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2022037/ |
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| Summary: | In order to diversify the design of block cipher, Piccolo-like structure was proposed with principles of design.Security evaluation for Piccolo-like structure against differential cryptanalysis was deeply studied.By studying the input-output propagation characteristics of differential characteristics, the lower bound on the number of active round functions for arbitrary round Piccolo-like structure was given.The results show that, under the condition that the round functions are all bijective, there are at least l active round functions for l-round Piccolo-like structure if l≥6, and there are at least l-1 active round functions for l-round Piccolo-like structure if l is 1,2,3,4,5. |
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| ISSN: | 1000-436X |