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Cryptanalysis of a cryptographic scheme based on delayed chaotic neural networks

Author

Listed:
  • Yang, Jiyun
  • Liao, Xiaofeng
  • Yu, Wenwu
  • Wong, Kwok-wo
  • Wei, Jun

Abstract

Recently, Yu et al. presented a new cryptographic scheme based on delayed chaotic neural networks. In this letter, a fundamental flaw in Yu’s scheme is described. By means of chosen plaintext attack, the secret keystream used can easily be obtained.

Suggested Citation

  • 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.
    • Handle: RePEc:eee:chsofr:v:40:y:2009:i:2:p:821-825
    DOI: 10.1016/j.chaos.2007.08.029
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    References listed on IDEAS

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    1. Zhang, Linhua & Liao, Xiaofeng & Wang, Xuebing, 2005. "An image encryption approach based on chaotic maps," Chaos, Solitons & Fractals, Elsevier, vol. 24(3), pages 759-765.
    2. Gao, Haojiang & Zhang, Yisheng & Liang, Shuyun & Li, Dequn, 2006. "A new chaotic algorithm for image encryption," Chaos, Solitons & Fractals, Elsevier, vol. 29(2), pages 393-399.
    3. Lei, Min & Meng, Guang & Feng, Zhengjin, 2006. "Security analysis of chaotic communication systems based on Volterra–Wiener–Korenberg model," Chaos, Solitons & Fractals, Elsevier, vol. 28(1), pages 264-270.
    4. Álvarez, G. & Montoya, F. & Romera, M. & Pastor, G., 2005. "Cryptanalyzing an improved security modulated chaotic encryption scheme using ciphertext absolute value," Chaos, Solitons & Fractals, Elsevier, vol. 23(5), pages 1749-1756.
    5. Wei, Jun & Liao, Xiaofeng & Wong, Kwok-wo & Xiang, Tao, 2006. "A new chaotic cryptosystem," Chaos, Solitons & Fractals, Elsevier, vol. 30(5), pages 1143-1152.
    6. 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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