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Efficient audio cryptosystem based on chaotic maps and double random phase encoding

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Abstract

This paper presents an efficient audio cryptosystem based on combining chaotic maps with optical encryption. The proposed audio cryptosystem is designed with the potential of enforcing the security level for digital speech communication via shared networks. The proposed audio cryptosystem is built using two security phases. In the first phase, it utilizes a chaotic system using either Baker map or cat map for providing the first security level. In the second phase, it utilizes optical encryption using double random phase encoding (DRPE) for providing the second security level. This second security level represented with DRPE is a physical security that is very hard to attack. The proposed audio cryptosystem is implemented and its performance is evaluated using different audio encryption/decryption quality metrics. The results demonstrated that the proposed audio cryptosystem increases the level of voice security with high degree of confidentiality.

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Authors and Affiliations

  1. Department of Computer Science and Engineering, Faculty of Electronic Engineering, Menoufia University, Menouf, 32952, Egypt

    Elsayed M. Elshamy, Osama S. Faragallah & Osama A. Elshakankiry

  2. Department of Electronics and Electrical Communications, Faculty of Electronic Engineering, Menoufia University, Menouf, 32952, Egypt

    El-Sayed M. El-Rabaie & Fathi E. Abd El-Samie

  3. Department of Electrical Engineering, Faculty of Engineering, Menoufia University, Shebin El-Kom, 32511, Egypt

    Hala S. El-sayed

  4. Department of Mathematics and Computer Science, Faculty of Science, Menoufia University, Shebin El-Kom, Egypt

    S. F. El-Zoghdy

  5. Department of Information Technology, College of Computers and Information Technology, Taif University, Al-Hawiya, 21974, Kingdom of Saudi Arabia

    Osama S. Faragallah, Osama A. Elshakankiry & S. F. El-Zoghdy

Authors
  1. Elsayed M. Elshamy
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  2. El-Sayed M. El-Rabaie
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  3. Osama S. Faragallah
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  4. Osama A. Elshakankiry
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  5. Fathi E. Abd El-Samie
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  6. Hala S. El-sayed
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  7. S. F. El-Zoghdy
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Corresponding author

Correspondence to Osama S. Faragallah.

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Elshamy, E.M., El-Rabaie, ES.M., Faragallah, O.S. et al. Efficient audio cryptosystem based on chaotic maps and double random phase encoding. Int J Speech Technol 18, 619–631 (2015). https://doi.org/10.1007/s10772-015-9279-3

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  • DOI: https://doi.org/10.1007/s10772-015-9279-3

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