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Title:
construction of dynamic linear feedback shift registers in rakaposhi stream cipher
Author: Yang Yang ; Zeng Guang
Keyword: Communication ; Cryptography ; Technology
Source: Tongxin Xuebao/Journal on Communications
Issued Date: 2011
Volume: 32, Issue:11 A, Pages:178-183
Indexed Type: EI
Department: (1) Department of Applied Mathematics PLA Information Engineering University Zhengzhou 450002 China; (2) State Key Laboratory of Information Security Institute of Software Chinese Acad. of Sci. Beijing 100190 China
Abstract: Dynamic linear feedback shift register (DLFSR) was a popular way to irregular clocking the linear feedback shift registers, which had a better tradeoff between the security and efficiency. Through analysis of the DLFSR in stream cipher RAKAPOSHI, a RAKAPOSHI-like DLFSE model was presented, and the sufficient and necessary condition was analyzedfor its output sequence being periodic. Furthermore, the relationship of the period between controlled sequence and output one was explicie, and finally the condition for the output sequence to be the maximal sequence was obtained. Based on these results, a naive search algorithm was given for finding maximal period RAKAPOSHI-like DLFSE.
English Abstract: Dynamic linear feedback shift register (DLFSR) was a popular way to irregular clocking the linear feedback shift registers, which had a better tradeoff between the security and efficiency. Through analysis of the DLFSR in stream cipher RAKAPOSHI, a RAKAPOSHI-like DLFSE model was presented, and the sufficient and necessary condition was analyzedfor its output sequence being periodic. Furthermore, the relationship of the period between controlled sequence and output one was explicie, and finally the condition for the output sequence to be the maximal sequence was obtained. Based on these results, a naive search algorithm was given for finding maximal period RAKAPOSHI-like DLFSE.
Language: 中文
Content Type: 期刊论文
URI: http://ir.iscas.ac.cn/handle/311060/16135
Appears in Collections:软件所图书馆_期刊论文

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Recommended Citation:
Yang Yang,Zeng Guang. construction of dynamic linear feedback shift registers in rakaposhi stream cipher[J]. Tongxin Xuebao/Journal on Communications,2011-01-01,32(11 A):178-183.
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