Because of the excellent properties of unpredictability, ergodicity and sensitivity to their
parameters and initial values, chaotic maps are widely used in security applications. In this …

Chaos-based cryptography, since its inception, has become a widely published subject.
Despite the vast amount of contributions in the area, its applications in real-world scenarios …

In the last two decades, the use of chaotic iterative maps in cryptographic systems,
especially chaotic hash functions, has been expanding. Sensitivity to small changes in initial …

With the increasing requirements of the performance in secure communication filed based
on chaos, chaotic systems have been gradually developed into higher dimensions. Because …

Secure hash functions, such as SHA-2 and SHA-3, play an important role in cryptography;
however, they are unkeyed and cannot produce the specific hash value with a specified …

One of the first and most used hashing algorithms in blockchains is SHA-256 so the main
aim of this paper is how to increase the security level of the blockchain based on the …

The construction of multidimensional discrete hyperchaotic maps with ergodicity and larger
Lyapunov exponents is desired in cryptography. Here, we have designed a general n D (n≥ …

This paper focuses on the problem of robust synchronization of uncertain continuous chaos
and dynamical degradation of digital chaos. A hybrid model is established based on the …

To solve the problem of finite precision effect of existing chaotic maps on digital platform,
first, a nondegenerate 2D integer-domain hyperchaotic map (2D-IDHCM) over GF (2 n) is …

Advanced in unpredictability, ergodicity and sensitivity to initial conditions and parameters,
chaotic maps are widely used in modern image encryption algorithms. In this study, the …