摘要
伪随机稀疏序列在信息隐藏技术中有广泛的应用 .本文给出了几类伪随机稀疏序列 ,它们分别是 :乘积序列 ,自缩乘积序列 ,自扩序列 ,其于GF(2 m)上m序列的稀疏序列 ,和基于乘方剩余符号的稀疏序列 .讨论了它们的良好伪随机性 。
Pseudo sparse sequence has wide applications in information hiding technology.This paper presents several classes of pseudo sparse sequences,named respectively product sequences,self shrinking product sequences,self expanding sequences,sparse sequences based on GF(2 m) ,and sparse sequences based on power residue symbol.Their randomness is discussed,mainly on the least periods and linear complexities.
出处
《电子学报》
EI
CAS
CSCD
北大核心
2002年第1期142-144,共3页
Acta Electronica Sinica
基金
国防科技重点实验室基金 (No .99JS0 6 .3 .1 .DZ0 1 1 2 )
关键词
伪随机稀疏序列
流密码
信息隐藏
stream cipher
information hiding
m sequence
the least period
linear complexity
