Abstract

In this paper, we discuss the effect of the cryptographic properties of translation transformation rotation symmetric Boolean functions. On construction of rotation symmetric Boolean functions with the optimal algebraic immunity, we construct correlation immunity Boolean functions with the optimal algebraic immunity by translation transformation and concatenation transformation.

Highlights

  • The algebraic immunity, optimal algebraic immunity, nonlinearity, diffusion and correlation immunity are all important security properties of cryptographic functions and research contents of cipher security

  • The algebraic immunity and optimal algebraic immunity of algebraic attacks are the hot spots in the current research

  • The cipher security is the core of the cryptosystem, and only a cryptosystem with good security has an existing significance

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Summary

Introduction

The algebraic immunity, optimal algebraic immunity, nonlinearity, diffusion and correlation immunity are all important security properties of cryptographic functions and research contents of cipher security. Boolean functions with a variety of secure cipher properties are the key factors to design the cryptosystem with the ability to resist multiple cipher attacks and good safety performance. It is of great importance for a security cryptosystem to study some properties of Boolean functions, which make the cryptosystem resist various attacks, such as high algebraic degree, high nonlinearity, the strict avalanche criterion and propagation, higher-order correlation immunity and higher-order algebraic immunity. We discuss the existence and structure of rotational symmetric Bent function using derivative, translation and cascade, and the problem of the optimal algebraic immune function of the immune system, which is based on the Bent function of the rotational symmetry. It is more convenient to judge the diffusion by the derivative calculation than by the diffusion

Preliminaries
Theimpact of Translation transform on the properties of RSBFs
Conclusions
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