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A new chaotic cryptosystem

Author

Listed:
  • Wei, Jun
  • Liao, Xiaofeng
  • Wong, Kwok-wo
  • Xiang, Tao

Abstract

Based on the study of some previously proposed chaotic encryption algorithms, we found that it is dangerous to mix chaotic state or iteration number of the chaotic system with ciphertext. In this paper, a new chaotic cryptosystem is proposed. Instead of simply mixing the chaotic signal of the proposed chaotic cryptosystem with the ciphertext, a noise-like variable is utilized to govern the encryption and decryption processes. This adds statistical sense to the new cryptosystem. Numerical simulations show that the new cryptosystem is practical whenever efficiency, ciphertext length or security is concerned.

Suggested Citation

  • Wei, Jun & Liao, Xiaofeng & Wong, Kwok-wo & Xiang, Tao, 2006. "A new chaotic cryptosystem," Chaos, Solitons & Fractals, Elsevier, vol. 30(5), pages 1143-1152.
    • Handle: RePEc:eee:chsofr:v:30:y:2006:i:5:p:1143-1152
    DOI: 10.1016/j.chaos.2005.09.005
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    References listed on IDEAS

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    1. Tang, Guoping & Liao, Xiaofeng, 2005. "A method for designing dynamical S-boxes based on discretized chaotic map," Chaos, Solitons & Fractals, Elsevier, vol. 23(5), pages 1901-1909.
    2. Huang, Fangjun & Guan, Zhi-Hong, 2005. "A modified method of a class of recently presented cryptosystems," Chaos, Solitons & Fractals, Elsevier, vol. 23(5), pages 1893-1899.
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    Cited by:

    1. Behnia, S. & Akhshani, A. & Akhavan, A. & Mahmodi, H., 2009. "Applications of tripled chaotic maps in cryptography," Chaos, Solitons & Fractals, Elsevier, vol. 40(1), pages 505-519.
    2. Yang, Jiyun & Liao, Xiaofeng & Yu, Wenwu & Wong, Kwok-wo & Wei, Jun, 2009. "Cryptanalysis of a cryptographic scheme based on delayed chaotic neural networks," Chaos, Solitons & Fractals, Elsevier, vol. 40(2), pages 821-825.
    3. Smaoui, Nejib & Kanso, Ali, 2009. "Cryptography with chaos and shadowing," Chaos, Solitons & Fractals, Elsevier, vol. 42(4), pages 2312-2321.
    4. Mi, Bo & Liao, Xiaofeng & Chen, Yong, 2008. "A novel chaotic encryption scheme based on arithmetic coding," Chaos, Solitons & Fractals, Elsevier, vol. 38(5), pages 1523-1531.
    5. Yang, Degang & Liao, Xiaofeng & Wang, Yong & Yang, Huaqian & Wei, Pengcheng, 2009. "A novel chaotic block cryptosystem based on iterating map with output-feedback," Chaos, Solitons & Fractals, Elsevier, vol. 41(1), pages 505-510.
    6. Han, S. & Chang, E. & Dillon, T. & Hwang, M. & Lee, C., 2009. "Identifying attributes and insecurity of a public-channel key exchange protocol using chaos synchronization," Chaos, Solitons & Fractals, Elsevier, vol. 40(5), pages 2569-2575.
    7. Behnia, S. & Akhshani, A. & Ahadpour, S. & Akhavan, A. & Mahmodi, H., 2009. "Cryptography based on chaotic random maps with position dependent weighting probabilities," Chaos, Solitons & Fractals, Elsevier, vol. 40(1), pages 362-369.
    8. Yang, Huaqian & Liao, Xiaofeng & Wong, Kwok-wo & Zhang, Wei & Wei, Pengcheng, 2009. "A new block cipher based on chaotic map and group theory," Chaos, Solitons & Fractals, Elsevier, vol. 40(1), pages 50-59.
    9. Xiang, Tao & Wong, Kwok-Wo & Liao, Xiaofeng, 2009. "On the security of a novel key agreement protocol based on chaotic maps," Chaos, Solitons & Fractals, Elsevier, vol. 40(2), pages 672-675.
    10. Yang, Huaqian & Liao, Xiaofeng & Wong, Kwok-wo & Zhang, Wei & Wei, Pengcheng, 2009. "A new cryptosystem based on chaotic map and operations algebraic," Chaos, Solitons & Fractals, Elsevier, vol. 40(5), pages 2520-2531.

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