{"title":"Linear complexity of Legendre-polynomial quotients","authors":"Zhixiong Chen","doi":"10.1049/iet-ifs.2017.0307","DOIUrl":null,"url":null,"abstract":"We continue to investigate binary sequence $(f_u)$ over $\\{0,1\\}$ defined by $(-1)^{f_u}=\\left(\\frac{(u^w-u^{wp})/p}{p}\\right)$ for integers $u\\ge 0$, where $\\left(\\frac{\\cdot}{p}\\right)$ is the Legendre symbol and we restrict $\\left(\\frac{0}{p}\\right)=1$. In an earlier work, the linear complexity of $(f_u)$ was determined for $w=p-1$ under the assumption of $2^{p-1}\\not\\equiv 1 \\pmod {p^2}$. In this work, we give possible values on the linear complexity of $(f_u)$ for all $1\\le w<p-1$ under the same conditions. We also state that the case of larger $w(\\geq p)$ can be reduced to that of $0\\leq w\\leq p-1$.","PeriodicalId":13305,"journal":{"name":"IET Inf. Secur.","volume":"20 1","pages":"414-418"},"PeriodicalIF":0.0000,"publicationDate":"2017-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IET Inf. Secur.","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1049/iet-ifs.2017.0307","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
Abstract
We continue to investigate binary sequence $(f_u)$ over $\{0,1\}$ defined by $(-1)^{f_u}=\left(\frac{(u^w-u^{wp})/p}{p}\right)$ for integers $u\ge 0$, where $\left(\frac{\cdot}{p}\right)$ is the Legendre symbol and we restrict $\left(\frac{0}{p}\right)=1$. In an earlier work, the linear complexity of $(f_u)$ was determined for $w=p-1$ under the assumption of $2^{p-1}\not\equiv 1 \pmod {p^2}$. In this work, we give possible values on the linear complexity of $(f_u)$ for all $1\le w