Universal Chosen-Ciphertext Attack for a Family of Image Encryption Schemes
| Autor: | Yicong Zhou, Junxin Chen, Lei Chen |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
FOS: Computer and information sciences
Theoretical computer science Computer science business.industry ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION Cryptography 02 engineering and technology Encryption Multimedia (cs.MM) Computer Science Applications Image (mathematics) Scrambling Permutation Computer Science::Multimedia Signal Processing 0202 electrical engineering electronic engineering information engineering Media Technology Key (cryptography) 020201 artificial intelligence & image processing Chosen-ciphertext attack Electrical and Electronic Engineering business Key schedule Computer Science - Multimedia Computer Science::Cryptography and Security |
| Zdroj: | IEEE Transactions on Multimedia. 23:2372-2385 |
| ISSN: | 1941-0077 1520-9210 |
| DOI: | 10.1109/tmm.2020.3011315 |
| Popis: | During the past decades, there is a great popularity employing nonlinear dynamics and permutation-substitution architecture for image encryption. There are three primary procedures in such encryption schemes, the key schedule module for producing encryption factors, permutation for image scrambling and substitution for pixel modification. Under the assumption of chosen-ciphertext attack, we evaluate the security of a class of image ciphers which adopts pixel-level permutation and modular addition for substitution. It is mathematically revealed that the mapping from differentials of ciphertexts to those of plaintexts are linear and has nothing to do with the key schedules, permutation techniques and encryption rounds. Moreover, a universal chosen-ciphertext attack is proposed and validated. Experimental results demonstrate that the plaintexts can be directly reconstructed without any security key or encryption elements. Related cryptographic discussions are also given. Comment: 12 pages |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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