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International Journal of Advanced Computer Science and Applications(IJACSA), Volume 5 Issue 5, 2014.
Abstract: Sound is very widely used in communication. In order to ensure secure communication a cryptographic data scheme is used. Secure sound is needed in many fields such as military, business, banking and electronic commerce. There is also an increasing demand for secured sound in network communication. Several symmetric and asymmetric algorithms are used for sound encryption. In this work, NTRU, the last in line public key cryptosystem is enhanced in two methods and used for encrypting sound files after converting the sound into text. In the proposed methods the message is encrypted one character at a time, since NTRU encrypts only prime numbers, thus 7 bits of each character is encrypted and the eighth bit is left without encryption. In method I NTRU algorithm is enhanced by adding the result obtained from calculating a mathematical equation of one variable to the message and then the resulted encrypted bit is fed-back and added to the next bit of the message in the next step; this procedure is repeated for the subsequent bits of the message. In method II NTRU algorithm is enhanced by adding the subsequent states of LFSR (Linear Feedback Shift Register) to the subsequent bytes of the message. The proposed methods are tested on several sound files; the results show that the proposed methods I and II maintain approximately the same original method encryption and decryption time while generating more complex encryption.
Ahmed Tariq Sadiq, Najlaa Mohammad Hussein and Suha Abdul Raheem Khoja, “Proposal for Two Enhanced NTRU” International Journal of Advanced Computer Science and Applications(IJACSA), 5(5), 2014. http://dx.doi.org/10.14569/IJACSA.2014.050507
@article{Sadiq2014,
title = {Proposal for Two Enhanced NTRU},
journal = {International Journal of Advanced Computer Science and Applications},
doi = {10.14569/IJACSA.2014.050507},
url = {http://dx.doi.org/10.14569/IJACSA.2014.050507},
year = {2014},
publisher = {The Science and Information Organization},
volume = {5},
number = {5},
author = {Ahmed Tariq Sadiq and Najlaa Mohammad Hussein and Suha Abdul Raheem Khoja}
}
Copyright Statement: This is an open access article licensed under a Creative Commons Attribution 4.0 International License, which permits unrestricted use, distribution, and reproduction in any medium, even commercially as long as the original work is properly cited.