本文關(guān)鍵詞： 低頻重 乘積關(guān)系 零化子 頻譜循環(huán)差分 頻譜空間　出處：《計(jì)算機(jī)應(yīng)用》2015年12期 　論文類(lèi)型：期刊論文

【摘要】：針對(duì)序列密碼實(shí)現(xiàn)有效的離散傅里葉頻譜攻擊,前提條件是尋找到序列的低頻重乘積關(guān)系或低頻重零化子。利用周期序列的離散傅里葉變換,得到滿(mǎn)足乘積關(guān)系序列的一個(gè)充要條件,并以此為基礎(chǔ),定義頻譜循環(huán)差分,推導(dǎo)出一類(lèi)低頻重乘積關(guān)系和低頻重零化子。同時(shí)研究了m序列的頻譜性質(zhì),給出了m序列的頻譜空間快速計(jì)算方法以及計(jì)算實(shí)例。
[Abstract]:In order to realize the effective discrete Fourier spectrum attack for the sequence cipher, the precondition is to find the low frequency multiple product relation or the low frequency multiple annihilator of the sequence, and to use the discrete Fourier transform of the periodic sequence. A sufficient and necessary condition for satisfying the product relation sequence is obtained. On this basis, the spectral cyclic difference is defined, and a class of low-frequency reproduct relations and low-frequency re-annihilators are derived. At the same time, the spectral properties of m sequences are studied. The fast calculation method of m sequence in spectrum space and an example are given.
【作者單位】： 保密通信重點(diǎn)實(shí)驗(yàn)室;
【基金】：2014年保密通信重點(diǎn)實(shí)驗(yàn)室基金資助項(xiàng)目(9140C110203140C11049)
【分類(lèi)號(hào)】：TN918.1
【正文快照】： 0引言序列密碼作為對(duì)稱(chēng)密碼[1]體制中一種重要的分支,因其加解密速度快、易于硬件實(shí)現(xiàn)、錯(cuò)誤擴(kuò)散低等優(yōu)點(diǎn),廣泛應(yīng)用于軍事和外交場(chǎng)合,對(duì)數(shù)據(jù)的保密性起著至關(guān)重要的作用。而在密碼編碼學(xué)發(fā)展的同時(shí),密碼分析學(xué)也相應(yīng)地得到快速發(fā)展。目前針對(duì)序列密碼的攻擊手段已不勝枚舉,其，

本文編號(hào)：1447692