文章基本信息

标题：A new dynamic speech encryption algorithm based on lorenz chaotic map over internet protocol
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作者：Obaida M. Al-hazaimeh
期刊名称：International Journal of Electrical and Computer Engineering
电子版ISSN：2088-8708
出版年度：2020
卷号：10
期号：5
页码：4824-4834
DOI：10.11591/ijece.v10i5.pp4824-4834
出版社：Institute of Advanced Engineering and Science (IAES)
摘要：This paper introduces a dynamic speech encryption algorithm based on Lorenz chaotic map over internet protocol to enhance the services of the real-time applications such as increases the security level and reduces latency. The proposed algorithm was divided into two processes: dynamic key generation process using 128-bit hash value to dynamically alter the initial secret keys, and encryption and decryption process using Lorenz system. In the proposed algorithm, the performance evaluation is carried out through efficient simulations and implementations and statistical analysis. In addition, the average time delay in the proposed algorithm and some of the existing algorithms such as AES is compared. The obtained results concluded that, the proposed dynamic speech encryption algorithm is effectually secured against various cryptanalysis attacks and has useful cryptographic properties such as confusion and diffusion for better voice communication in the voice applications field in the Internet.
关键词：AMR-WB-G.722.2;Chaos-theory;Cryptography;IP telephony;Lorenz map