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Authors: George Teşeleanu 1 ; 2

Affiliations: 1 Advanced Technologies Institute, 10 Dinu Vintilă, Bucharest, Romania ; 2 Simion Stoilow Institute of Mathematics of the Romanian Academy, 21 Calea Grivitei, Bucharest, Romania

Keyword(s): Image Encryption Scheme, Chaos Based Encryption, Cryptanalysis.

Abstract: In 2019, Essaid et al. proposed an encryption scheme for color images based on chaotic maps. Their solution uses two enhanced chaotic maps to dynamically generate the secret substitution boxes and the key bytes used by the cryptosystem. Note that both types of parameters are dependent on the size of the original image. The authors claim that their proposal provides enough security for transmitting color images over unsecured channels. Unfortunately, this is not the case. In this paper, we introduce two cryptanalytic attacks for Essaid et al.’s encryption scheme. The first one is a chosen plaintext attack, which for a given size, requires 256 chosen plaintexts to allow an attacker to decrypt any image of this size. The second attack is a a chosen ciphertext attack, which compared to the first one, requires 512 chosen ciphertexts to break the scheme for a given size. These attacks are possible because the generated substitution boxes and key bits remain unchanged for different plaintex t images. (More)

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Paper citation in several formats:
Teşeleanu, G. (2023). Security Analysis of a Color Image Encryption Scheme Based on Dynamic Substitution and Diffusion Operations. In Proceedings of the 9th International Conference on Information Systems Security and Privacy - ICISSP; ISBN 978-989-758-624-8; ISSN 2184-4356, SciTePress, pages 410-417. DOI: 10.5220/0011646300003405

@conference{icissp23,
author={George Teşeleanu.},
title={Security Analysis of a Color Image Encryption Scheme Based on Dynamic Substitution and Diffusion Operations},
booktitle={Proceedings of the 9th International Conference on Information Systems Security and Privacy - ICISSP},
year={2023},
pages={410-417},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0011646300003405},
isbn={978-989-758-624-8},
issn={2184-4356},
}

TY - CONF

JO - Proceedings of the 9th International Conference on Information Systems Security and Privacy - ICISSP
TI - Security Analysis of a Color Image Encryption Scheme Based on Dynamic Substitution and Diffusion Operations
SN - 978-989-758-624-8
IS - 2184-4356
AU - Teşeleanu, G.
PY - 2023
SP - 410
EP - 417
DO - 10.5220/0011646300003405
PB - SciTePress

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