Audio Signal Encryption Based on Permutation Relations and Residue Number System
سال انتشار: 1395
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 435
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شناسه ملی سند علمی:
JR_JACR-7-3_006
تاریخ نمایه سازی: 12 دی 1395
چکیده مقاله:
This paper presents a new audio encryption algorithm based on permutation and residue number system. In the current approach, signal samples are combined with residue number system through permutation; therefore, a specific noise is generated. Then, the audio signal is combined with the noise, generated by the algorithm, to produce a silence signal. For this purpose, the algorithm uses a predefined permutation format and a modular set in the form of {2n-1, 2n, 2n+1} to encrypt the main signal. Consequently, the proposed algorithm converts the input signal into a silence signal and increases its security. The signal-to-noise ratio (SNR) was used to evaluate the algorithm. The results indicated very low values of SNR pertaining to audio signals in the proposed method.
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نویسندگان
Fereshteh Ghanbari Adivi
M.Sc. Computer Systems Architecture, Dezfoul Branch, Islamic Azad University, Dezfoul, Iran
Mohammad Mehrnia
M.Sc. Computer Systems Architecture, Dezfoul Branch, Islamic Azad University, Dezfoul, Iran