الملخص

Abstract Today the digital communication has become one of the most important things to the infrastructures in most applications, such as the Internet and in some cases which requiring confidential in communications that are confidential information become a sensitive issue. in this research we proposed a method to provide a way to achieve reliability in the digital audio files. Where we build a system to achieve the reliability of the digital audio through camouflage Uses one-way function and a summary of the message, as well as the idea of a digital signature. Also we provide an efficient way to achieve the Digital Watermarking for digital audio. This research allows the recipient of the digital audio to ensure reliable voice and detect any possible change in the sound that occurs by any one during the sending over the computers network. We illustrate the results within the practical value of using the Matlab package ver. 7.0.