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Cited by 54Chaos-based Image/Signal EncryptionComputer Science and EngineeringAdvanced Steganography and Watermarking Techniques

Secure and Fast Image Encryption Algorithm Using Hyper-Chaos-Based Key Generator and Vector Operation

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Ge, Bin, Chen, Xu, Chen, Gang, Shen, Zhihua·2021·IEEE Access
DOI 10.1109/access.2021.3118377
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Abstract

To protect image data privacy, a secure and fast image encryption algorithm using hyper-chaos based key generator and vector operation is proposed. Firstly, we introduce a novel post-process method to create a key matrix for significantly reducing the iterations of the hyperchaotic system from W×H/4 to 2W for an image size of W×H. And within the post-process, a random selector driven by the piecewise linear chaotic map ensures the good randomness and unpredictability of the generated key matrix. Secondly, the vector operation is employed to accelerate the cipher block chaining based diffusion process, so the plain image can be parallel encrypted row by row and column by column with high efficiency. Thirdly, we utilize a Logistic map to quickly produce an initial vector for the vectorized diffusion process. Finally, the proposed algorithm is evaluated by some common security and performance tests. Experimental results show that the cipher image can pass all tests of NIST SP 800-22 with P-values>>0.01, its correlation coefficient between pixels is close to 0, and the entropy is greater than 7.999. Combined with other results of security tests, we can safely conclude that the proposed image encryption algorithm provides adequate protection against statistical, brute-force, chosen-plaintext, and other common types of attacks. In addition, the time complexity is in the order of O(W+H) and the average encryption time of 512×512 images is only 0.023s. The results indicate that our algorithm with high security and fast speed can meet the requirements of real-time confidential transmission of massive image data.

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  • Chaos-based image encryption algorithms are efficient, making them ideal for real-time applications and suitable for environments with constrained computational resources.

    “Additionally, chaos-based image encryption algorithms are known for their efficiency, making them ideal for real-time applications and suitable for environments with constrained computational resources17,18.”

    From A chaos-based augmented image encryption scheme for satellite images using Fredkin logic (2025) · cites this paper as [18]

    The computational-cost analysis reports fast execution for the paper’s proposed chaos-based algorithm and says it can support real-time image transmission. But the experiments used a desktop computer, and the paper does not establish suitability for environments with constrained computational resources or for chaos-based algorithms generally. (LLM, conf=0.88)

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Cited by

Sorted by citations

Authors
Ge, B., Chen, X., Chen, G., & Shen, Z.
Affiliations
  • Nantong Vocational University (CN)
  • Chinese Academy of Sciences (CN)
ORCID
Venue
IEEE Access
Publisher
Institute of Electrical and Electronics Engineers (IEEE)
Published
2021
Volume
9
Pages
137635-137654
ISSN
2169-3536 (ISSN-L)
DOI
10.1109/access.2021.3118377
OpenAlex
W3204364773
Cited by
54
References
3
Citations by year
2026: 7 · 2025: 11 · 2024: 16 · 2023: 11 · 2022: 9
FWCI
3.24
Type
journal article
Language
en
Open access
Licence
Locations
  • IEEE Access (publishedVersion, cc-by)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • SEMI-IR (submittedVersion)
Funders
  • National Natural Science Foundation of China (U1936106, U19A2080, 62004108)
  • Natural Science Foundation for Universities of Jiangsu Province (20KJD510001)
  • Qing Lan Project of Colleges and Universities in Jiangsu Province (2020 10)
  • Nantong Science and Technology Plan Project (JC2021036)
Topics
  • Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Chaos-based Image/Signal Encryption
  • Physical Sciences › Computer Science › Artificial Intelligence › Computer Science and Engineering
  • Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Advanced Steganography and Watermarking Techniques
Keywords
image encryption, hyperchaos, key generator, cipher block chaining, diffusion, logistic map, piecewise linear chaotic map, parallel encryption, real-time image transmission

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