Stability of Nonlinear Feedback Shift Registers with Periodic Input
نویسندگان
چکیده
منابع مشابه
Stability and Linearization of Multi-valued Nonlinear Feedback Shift Registers
In this paper, we study stability and linearization of multivalued nonlinear feedback shift registers which are considered as logic networks. First, the linearization of multi-valued nonlinear feedback shift registers (NFSRs) is discussed, which is to find their state transition matrices by considering it as a logical network via a semi-tensor product approach. For a multi-valued NFSR, the new ...
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Stream ciphers that deploy linear feedback shift registers (LFSRs) have been shown to be vulnerable under fast correlation attacks [20], [21], [14], algebraic attacks [7], [28], fast algebraic attacks [6], [1], and fault attacks [13]. We discuss certain nonlinear feedback shift registers (NLFSRs) recommended as substitutes for LFSRs in stream cipher systems.
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Feedback shift registers are basic building blocks for many cryptographic primitives. Due to the insecurities of Linear Feedback Shift Register (LFSR) based systems, the use of Nonlinear Feedback Shift Registers (NFSRs) became more popular. In this work, we study the feedback functions of NFSRs with period 2n. First, we provide two new necessary conditions for feedback functions to be maximum l...
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Nonlinear feedback shift registers (NLFSRs) are used to construct pseudorandom generators for stream ciphers. Their theory is not so complete as that of linear feedback shift registers (LFSRs). In general, it is not known how to construct all NLFSRs with maximum period. The direct method is to search for such registers with suitable properties. Advanced technology of parallel computing has been...
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A general framework for the design of feedback registers based on algebra over complete rings is described. These registers generalize linear feedback shift registers and feedback with carry shift registers. Basic properties of the output sequences are studied: relations to the algebra of the underlying ring; synthesis of the register from the sequence (which has implications for cryptanalysis)...
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ژورنال
عنوان ژورنال: Computers, Materials & Continua
سال: 2020
ISSN: 1546-2226
DOI: 10.32604/cmc.2020.06702