{"title":"On the generation of multiple ℓ-sequences from single WFCSR automaton for cryptographic applications","authors":"Ganesh Akula, Vinod Naik, B. Umadevi","doi":"10.1109/NGCT.2016.7877531","DOIUrl":null,"url":null,"abstract":"Feedback with carry shift registers (FCSRs) have been proposed as a promising alternate to the Linear feedback shift registers (LFSRs) in recent years. An approach based on traditional matrix representation has been proposed to design a Word oriented FCSR (WFCSR) automaton in [2], [3]. This automaton always generates a fixed ℓ-sequence, which is not desired for some cryptographic applications. In this paper, we present a new WFCSR automaton which enhances the traditional matrix representation by incorporating α-mask and/or β-mask operations on certain blocks (or words) of WFCSR automaton. By applying different α-mask and/or β-mask on certain blocks (or words) of WFCSR automaton, we can generate multiple ℓ-sequences without changing its structure. We can use the proposed approach to design WFCSR automaton in Fibonacci, Galois and Ring representations. The proposed WFCSR automaton can be adopted as a basic primitive to design any pseudo random number generator or stream cipher for cryptographic applications.","PeriodicalId":326018,"journal":{"name":"2016 2nd International Conference on Next Generation Computing Technologies (NGCT)","volume":"106 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2016 2nd International Conference on Next Generation Computing Technologies (NGCT)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/NGCT.2016.7877531","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
Feedback with carry shift registers (FCSRs) have been proposed as a promising alternate to the Linear feedback shift registers (LFSRs) in recent years. An approach based on traditional matrix representation has been proposed to design a Word oriented FCSR (WFCSR) automaton in [2], [3]. This automaton always generates a fixed ℓ-sequence, which is not desired for some cryptographic applications. In this paper, we present a new WFCSR automaton which enhances the traditional matrix representation by incorporating α-mask and/or β-mask operations on certain blocks (or words) of WFCSR automaton. By applying different α-mask and/or β-mask on certain blocks (or words) of WFCSR automaton, we can generate multiple ℓ-sequences without changing its structure. We can use the proposed approach to design WFCSR automaton in Fibonacci, Galois and Ring representations. The proposed WFCSR automaton can be adopted as a basic primitive to design any pseudo random number generator or stream cipher for cryptographic applications.