Cryptanalysis of a secure image encryption scheme based on a novel 2D sine–cosine cross‑chaotic map
| Autor: | Pengcheng Wang, Yanfang Liu, Ming Li, Yange Yue |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Discrete mathematics
business.industry Computer science Image (category theory) Structure (category theory) 020207 software engineering 02 engineering and technology Encryption law.invention law Scheme (mathematics) 0202 electrical engineering electronic engineering information engineering Cryptosystem Trigonometric functions 020201 artificial intelligence & image processing Sine business Cryptanalysis Information Systems |
| Zdroj: | Journal of Real-Time Image Processing. 18:2135-2149 |
| ISSN: | 1861-8219 1861-8200 |
| DOI: | 10.1007/s11554-021-01091-1 |
| Popis: | Recently, a new secure image encryption scheme was proposed based on a novel 2D sine–cosine cross‑chaotic map. The authors claimed that the encryption scheme they proposed was secure enough to resist all the existing cryptanalytic attacks. However, the multi-round original cryptosystem with permutation–bit diffusion structure (PBDS) was found to have three security vulnerabilities and was proved to be equivalent to the one-round cryptosystem with PBDS, which would lead to the original cryptosystem being successfully cracked by chosen-plaintext attack (CPA). Subsequently, two efficient and feasible attack schemes were proposed in this paper, and they require $$\left\lceil {\log_{2} W \times H} \right\rceil + 1$$ and $$\left\lceil {\log_{256} W \times H} \right\rceil + 1$$ times of CPA in total, respectively. Simulation and experimental results have verified the effectiveness and feasibility of the two attack schemes. |
| Databáze: | OpenAIRE |
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