A novel parallel hash function based on 3D chaotic map

Abstract

As the core of cryptography, hash function is one of the basic techniques for information security. During the last few years, considerable effort has been devoted to research on chaos-based hash functions. Nevertheless, the corresponding analysis of them lag far behind. In this paper, a new efficient scheme for parallel hash function based on high-dimensional chaotic map is proposed. In the proposed scheme, the confusion as well as the diffusion effect is enhanced significantly by utilizing two nonlinear coupling parameters. Theoretical and experimental results indicate that the proposed scheme can satisfy all performance requirements of hash function such as desired statistical properties and strong collision resistance. At the same time, the proposed scheme can keep the parallel merit and message sensitivity with high potential to be adopted for network security.

An Intelligent and Fast Chaotic Encryption Using Digital Logic Circuits for Ad-Hoc and Ubiquitous Computing

“…Alem Haddush Fitwi et al [3] Amir Akhavan1 et al [12] Some mathematical properties have also determined the security and performance of distinct algorithms and systems using dynamic, chaotic cryptography [11,26]. Periodic switching of cryptographic keys is a different concept to boost the security of cryptographic systems in which chaotic behavior is combined with the periodic switching of keys [8].…”

“…Performance of the proposed chaotic algorithm(CET-2C) is measured, and finally compared with the existing one secret key, AES, encryption algorithm and also compared with different algorithms using same data size published in Springer [12], Hindawi [17] and EEA [3] publications. It is to be shown that CET-2C is not affected by the data set, and only depends upon the data size.…”

“…The performance of the proposed algorithm (CET-2C) is compared with a popular secret key encryption algorithm, AES, and with Chaotic Algorithms [3,12] using the data size same as provided in [3,12,17]. The plaintexts used in the proposed algorithm, are encrypted using AES, and a Chaotic Algorithm [3,12] and their performance is evaluated and analyzed using the same metrics as above.…”

“…The plaintexts used in the proposed algorithm, are encrypted using AES, and a Chaotic Algorithm [3,12] and their performance is evaluated and analyzed using the same metrics as above.…”

Implementation of Gray Image Encryption using Multi-Level of Permutation and Substitution

“…These properties of chaos includes: affectability to modest changes in introductory conditions, random-like manners, ergodicity, unstable periodic orbits, desired diffusion and confusion properties, and one-way property. Due to these properties, chaotic systems have become a very good candidate for use in the field of cryptography [1,2,3].…”