Image Encryption System Based on Cellular Automata and S-Box

Contreras, Juan; Ramírez, Marco; Aboytes, Jesús

doi:10.13053/rcs-148-10-13

Cited by 4 publications

(1 citation statement)

References 8 publications

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“…In this paper, a novel framework was presented, in which the key to solving an NPcomplete problem is obtained; this provides not only authentication but also confidentiality in security services. Another point is that, as shown in Table 1, the framework encrypts different types of files, unlike in [13,37], but similarly, it works with cellular automata. Moreover, the encryption time depends on the file size; in comparison with, [38] is faster and has better avalanche achieved percentages (Table 2), so it is better because of the efficiency of the diffusion mechanism.…”

Section: Discussionmentioning

confidence: 99%

Cryptographic Services Based on Elementary and Chaotic Cellular Automata

2022

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In this paper, a security framework based on cellular automata is proposed, which is composed of three parts: entity authentication, data encryption, and decryption. Authentication is based on a zero-knowledge protocol, and its robustness is supported by the fact that the shared secret is not only an NP-complete problem but also dynamically transformed by a two-dimensional cellular automaton into a more complex secret. Thus, the authentication’s output is the key to data encryption/decryption in the following steps. One more strength of this system is the sensibility of the cellular automata to initial conditions—which is why we must know the initial configuration in order to obtain the key and the times that cellular automata evolved. All those characteristics give the system both robustness and security.

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Section: Discussionmentioning

confidence: 99%

Cryptographic Services Based on Elementary and Chaotic Cellular Automata

2022

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A comprehensive survey on encryption techniques for digital images

Singh

2022

Multimed Tools Appl

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Selection of Intelligent Rules for the Evolution of Elementary Cellular Automata for Image Encryption

Bdour

2022

Wseas Transactions on Systems and Control

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The paper is devoted to the search for new approaches to the formation of key arrays for encryption of color images. Emphasis is placed on using the initial key sequence of the smallest length. In this case, the key is the initial state of an elementary cellular automaton for implementing evolution based on a given rule. The use of an evolutionary approach on cellular automata to the formation of large key arrays made it possible to achieve unpredictable image encryption based on a single rule of an elementary cellular automata. The task of the research is to search for the rules of elementary cellular automata, which, based on a small initial key bit sequence, allow one to form a reliable key array of large dimensions for encrypting the bit layers that make up the image. To solve this problem, an experiment was carried out, on the basis of which the search for the necessary rules and options for choosing the elements of each bit array was carried out to encrypt the bit layers of the image. To form each bit key array, different initial conditions were used for elementary cellular automata. It is shown that for different initial conditions and for the chosen rules, the encryption quality is preserved. The most reliable encryption is the use of two key arrays formed on the basis of the evolution of one rule for different initial conditions. As a result of the experiments, the rules were determined (rules 90, 105, 150 and XOR function based on the two previous steps of evolution), which can be used without additional rules. Each bit layer of the image is encrypted using different subarrays of each generated one key array of the same dimension. It has been established that the most effective for encryption is the rule 105 and the XOR function based on the two previous steps of evolution. The resulting histograms of the distribution of brightness for each color of the encrypted image confirm the high quality of encryption based on the proposed method.

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Image Encryption System Based on Cellular Automata and S-Box

Cited by 4 publications

References 8 publications

Cryptographic Services Based on Elementary and Chaotic Cellular Automata

Cryptographic Services Based on Elementary and Chaotic Cellular Automata

A comprehensive survey on encryption techniques for digital images

Selection of Intelligent Rules for the Evolution of Elementary Cellular Automata for Image Encryption

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