A fast algorithm for determining the minimal polynomial of a sequence with period 2pn GF (q)

被引:19
作者
Wei, SM [1 ]
Xiao, GZ
Chen, Z
机构
[1] Peking Univ, Dept Comp Sci & Tech, Res Grp Informat Secur, Beijing 100871, Peoples R China
[2] Huaibei Coal Normal Coll, Dept Math, Huaibei 235000, Anhui, Peoples R China
[3] Xidian Univ, Natl Key Lab ISN, Xian 710071, Peoples R China
基金
中国国家自然科学基金;
关键词
codes; cryptography; fast algorithm; linear complexity; minimal polynomial; periodic sequence;
D O I
10.1109/TIT.2002.802609
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
A fast algorithm is presented for determining the linear complexity and the minimal polynomial of a sequence with period 2p(n) over GF (q), where p and q are odd prime, and q is a primitive root (mod p(2)). The algorithm uses the fact that in this case the factorization of x(2)p(n) - 1 is especially simple.
引用
收藏
页码:2754 / 2758
页数:5
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