A Secure Voice Channel using Chaotic Cryptography Algorithm

2018 International Conference on Electrical Engineering and Computer Science (ICECOS) Pub Date : 2018-10-01 DOI:10.1109/ICECOS.2018.8605229

M. Riyadi, M. Khafid, Natanael Pandapotan, T. Prakoso

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引用次数: 3

Abstract

A secure voice communications channel is on demand to avoid unwanted eavesdropping of voice messages. This paper reports the development of communicaiton channel prototype equipped with Chaotic cryptographic algorithm with Cipher Feedback mode, implemented on FPGA due to its high processing speed and low delay required for voice channel. Two Spartan-3 FPGA board was used for the purpose, one as transmitter in encryption process and the other as receiver of decryption process. The experimental tests reveal that the voice channel is successfully secured using the encryption-decription cycle for asynchronous communication. In the non-ecrypted channel, the average values of MSE, delay, and THD-N parameters are 0.3513 $\textbf{V}^{\textbf{2}}$, 202 μs, and 17.52%, respectively, whilethe secured channel produce MSE of 0.3794 $\mathbf{V}^{\mathbf {2}}$, delay 202 μs, and THD-N 20.45%. Therefore, the original information sent in the encrypted channel can be restored with similar quality compared to the non-encrypted channel.

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使用混沌加密算法的安全语音信道

需要一个安全的语音通信通道，以避免不必要的窃听语音信息。本文报道了一种基于密码反馈模式的混沌密码算法的通信信道原型的开发，由于其对语音信道的处理速度快，延迟低，因此在FPGA上实现。采用两块Spartan-3 FPGA板，一块作为加密过程的发送方，一块作为解密过程的接收方。实验结果表明，采用异步通信的加密-描述循环对语音信道进行了成功的安全保护。在非加密信道中，MSE、delay和THD-N参数的平均值分别为0.3513 $\textbf{V}^{\textbf{2}}$、202 μs和17.52 μs%, respectively, whilethe secured channel produce MSE of 0.3794 $\mathbf{V}^{\mathbf {2}}$, delay 202 μs, and THD-N 20.45%. Therefore, the original information sent in the encrypted channel can be restored with similar quality compared to the non-encrypted channel.

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2018 International Conference on Electrical Engineering and Computer Science (ICECOS)

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