基于混合混沌密钥发生器的AMR-WB G.722.2编解码器语音加密

2017 12th International Conference for Internet Technology and Secured Transactions (ICITST) Pub Date : 2017-12-01 DOI:10.23919/ICITST.2017.8356353

Messaouda Boumaraf, Fatiha Merazka

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引用次数: 2

摘要

近年来，基于混沌的密码系统在许多学科中受到越来越多的关注，尤其是语音加密。针对AMR-WB G.722.2编解码器，提出了一种基于混沌映射的语音加密方案。为了提高安全性，我们将混沌映射逻辑与hsamnon相结合，对语音进行洗牌和置乱，从而得到一个混合混沌密钥生成器。用语音质量感知评价(PESQ)和增强修正树皮频谱失真(EMBSD)度量对算法进行了评估，验证了所提密码系统方案的有效性。

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Speech encryption based on hybrid chaotic key generator for AMR-WB G.722.2 codec

In recent years, chaos-based cryptosystems have drawn more and more attention in many disciplines in particular speech encryption. In this paper, we propose speech encryption scheme based on chaos maps for AMR-WB G.722.2 Codec. To increase the security level, we combine chaos maps logistic and Hénon for shuffling and scrambling speech in order to have a hybrid chaotic key generator. The proposed algorithm evaluated with both Perceptual Evaluation of Speech Quality (PESQ) and Enhanced Modified Bark Spectral Distortion (EMBSD) measure confirm the efficiency of our proposed cryptosystem scheme.

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2017 12th International Conference for Internet Technology and Secured Transactions (ICITST)

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