An image encryption scheme based on hybridizing digital chaos and finite state machine

Alawida, Moatsum; Teh, Je Sen; Samsudin, Azman; Alshoura, Wafa’ Hamdan

doi:10.1016/j.sigpro.2019.06.013

Cited by 142 publications

(50 citation statements)

References 47 publications

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“…This mode also depends on the IV that is selected similar to the CBC operation mode. The utilization of different IV s in ciphering the same input plaintext block yields different enciphered block [33]. Although the IV can be sent to the receiver openly, certain applications require securing it.…”

Section: B the Cipher Block Chaining (Cbc) Modementioning

confidence: 99%

Efficiently Encrypting Color Images With Few Details Based on RC6 and Different Operation Modes for Cybersecurity Applications

et al. 2020

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Recently, massive research works have been accomplished for augmenting privacy and security requirements for cybersecurity applications in wireless communication networks. This is attributed to the fact that conventional security processes are not appropriate for robust, efficient, and reliable multimedia streaming over unsecure media. Therefore, this paper presents an efficient color image cryptosystem based on RC6 with different modes of operation. The proposed cryptosystem is composed of two phases: encryption and decryption. The encryption phase starts by decomposing the color plainimage with few details into its RGB components, which in turn, are segmented into 128-bit blocks. These blocks are then enciphered using RC6 with an appropriate mode of operation. After that, the corresponding enciphered blocks of RGB components are multiplexed for constructing the final cipherimage. This scenario is reversed in the decryption phase. The performance of the proposed cryptosystem is gauged via simulation using a set of encryption quality metrics. The simulation results reveal that the proposed cryptosystem with cipher block chaining (CBC), cipher feedback (CFB), and output feedback (OFB) modes can efficiently and effectively hide all information of the color images with few details even in the presence of some input blocks with similar data. On the other hand, the results show that the electronic codebook (ECB) mode is not effective at all in hiding all details of images. Finally, the obtained results ensure the applicability of the proposed cryptosystem and its efficiency in encrypting images in terms of security, encryption quality, and noise immunity.

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Section: B the Cipher Block Chaining (Cbc) Modementioning

confidence: 99%

Efficiently Encrypting Color Images With Few Details Based on RC6 and Different Operation Modes for Cybersecurity Applications

et al. 2020

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“…The DCFSA chaotification method enhances the chaotic behaviour of classical maps, leading to chaotic trajectories with long cycle lengths [40]. Due to these desirable properties, DCFSA can be adopted to design new cryptographic hash function with high security.…”

Section: Dcfsa-based Hash Functionmentioning

confidence: 99%

“…In this paper, we propose a new chaotic hash function based on deterministic chaotic finite state automata (DCFSA) with dynamic perturbation. DCFSA was originally proposed to enhance 1D chaotic behaviors without using external entropy sources [39], [40]. Out of its various configurations, we select DCFSA FW P due to its various advantages such as large chaotic parameter range, high complexity, better randomness, and elevated nonlinearity.…”

Section: Introductionmentioning

confidence: 99%

A New Hash Function Based on Chaotic Maps and Deterministic Finite State Automata

et al. 2020

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In this paper, a new chaos-based hash function is proposed based on a recently proposed structure known as the deterministic chaotic finite state automata (DCFSA). Out of its various configurations, we select the forward and parameter permutation variant, DCFSA FW P due to its desirable chaotic properties. These properties are analogous to hash function requirements such as diffusion, confusion and collision resistance. The proposed hash function consists of six machine states and three simple chaotic maps. This particular structure of DCFSA can process larger message blocks (leading to higher hashing rates) and optimizes its randomness. The proposed hash function is analyzed in terms of various security aspects and compared with other recently proposed chaos-based hash functions to demonstrate its efficiency and reliability. Results indicate that the proposed hash function has desirable statistical characteristics, elevated randomness, optimal diffusion and confusion properties as well as flexibility.

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“…These characteristics of chaotic systems have made them suitable for the construction of strong cryptographic algorithms. Consequently, they have been utilized to construct multimedia data encryption, substitution-boxes design, steganography, watermarking, hash functions algorithms, etc, [3,4,11,12] for the last decade. However, the security of these cryptographic algorithms heavily relies on the use of rich dynamics of digital chaotic maps and systems.…”

Section: Introductionmentioning

confidence: 99%

Bijective S-Boxes Method Using Improved Chaotic Map-Based Heuristic Search and Algebraic Group Structures

et al. 2020

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This paper presents a hybrid method for the construction of cryptographically strong bijective substitution-boxes by utilizing the merits of chaotic map and algebraic groups. The hybrid method first generates the key-dependent dynamic S-boxes using chaotic heuristic search strategy and then the S-boxes are evolved with the help of potent proposed algebraic group structures. This paper proposes a new improved combination chaotic map to operate initial search strategy. To augment the strength of generated S-boxes, the algebraic group structures are discovered which have the power to improve their cryptographic strength. The performance assessments using standard criterions are rendered to quantify the strengths of proposed bijective S-boxes. The experimental results and comparisons with recent S-box research findings justify the effectiveness and competence of the proposed bijective S-boxes and anticipated hybrid generation method.

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An image encryption scheme based on hybridizing digital chaos and finite state machine

Cited by 142 publications

References 47 publications

Efficiently Encrypting Color Images With Few Details Based on RC6 and Different Operation Modes for Cybersecurity Applications

Efficiently Encrypting Color Images With Few Details Based on RC6 and Different Operation Modes for Cybersecurity Applications

A New Hash Function Based on Chaotic Maps and Deterministic Finite State Automata

Bijective S-Boxes Method Using Improved Chaotic Map-Based Heuristic Search and Algebraic Group Structures

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