A novel technique for speech encryption based on k-means clustering and quantum chaotic map

In information transmission such as speech information, higher security and confidentiality are specially required. Therefore, data encryption is a pre-requisite for secure communication system to protect from unauthorized access. A new algorithm introduced in this paper. It depends on the quantum chaotic map k-means clustering, which employed keys generation. Also, two stages of scrambling were used: first relied bits using proposed (binary representation BiRS) second (block BlRS). The objective test used statistical analysis measures (signal-to-noise-ratio, segmental signal-to-noise-ratio, frequency-weighted signal-to-noise ratio, correlation coefficient, log-likelihood ratio) applied evaluate system. Via MATLAB simulations, it shown that technique secure, reliable efficient be implemented communication, well also being characterized by high clarity recovered signal.