Abstract: Digital speech signal is very famous and important data type; it is used in many important vital applications such as banking systems, protection and security systems, so speech protection is required. In this research paper we will introduce a simplified method of digital speech signal image encryption-decryption; the method will be tested and implemented using various digital speech signals. The proposed EDDSS will change the frequency and amplitude of the original signal, the issues of security, efficiency and accuracy will be discussed; the obtained experimental results will be analysed in order to raise some judgments.

Keywords: DSS, encryption, EDDSS, decryption, FS, SFS, secret range, encryption time, efficiency measures, speedup, throughput, MSE, PSNR.

PDF | DOI: 10.17148/IJARCCE.2020.9419

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