تشفير إشارة الكلام بمفاتيح سرية متعددة
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منشور:
May 30, 2016
الكلمات المفتاحية:
إشارة الكلام؛ التشفير؛ فك التشفير؛ التحولات الدائرية DCT. التوقيت الصيفي
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الملخص
في هذا البحث اقترحنا نظام تشفير لإشارات الكلام يعتمد على التحولات الدائرية في الصف والعمود. يستخدم نظام التشفير هذا ثلاثة مفاتيح سرية. يتم إنشاء المفتاح الأصلي بشكل عشوائي باستخدام مولد تسلسل الضوضاء الزائف، ويتم الحصول على المفتاحين الآخرين باستخدام المفتاح الرئيسي. يستخدم نظام التشفير أيضًا تحويل جيب التمام المنفصل (DCT) أو تحويل جيب التمام المنفصل (DST) لإزالة وضوح الإشارة. علاوة على ذلك، تم تقدير أداء الخوارزمية المقترحة من خلال كمية معامل الارتباط.
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كيفية الاقتباس
سليمانيد., & مرازقةف. (2016). تشفير إشارة الكلام بمفاتيح سرية متعددة. AL-Lisaniyyat, 22(2), 49-56. https://doi.org/10.61850/allj.v22i2.374
القسم
Articles
المراجع
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A.Matsunaga K. Koga , and M. Ohkawa, An analog speech scrambling system using the FFT Technique with High –level Security ,IEEE Journal of selected Areas in communications , vol.74,pp.540-547,1989.
B Goldburg ,E Dawson and S Sridharan ,The Automated Cryptanalysis of Analog speech scramblers , Advances in Cryptology EUROCRYPT 91, lecture notes in computer science , vol.547-1991,pp.422-430,1997.
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Emad mosa,Nagy W. Messiha ,Osama zahran ,Fathi E. Abd EL –SAMIE, Chaotic encryption of speech signals , International journal of speech Technology, vol .14.4,pp.285-296,2011.
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E.Mosa, N.W.MEssiha ,O.Zahran and F.E Abd El samie ,Encryption of speech signal with multiple secret keys in time and transform domains , vpl ; 13, pp.231-242,2010
NIST, Timit speech corpus ,NIST 1990.
Long jye sheu, A Speech encryption using fractional chaotic systems, Nonlinear Dynamics ,vol 65,pp.103-108,2011.
H.C. Baker and F.C Piper,Secure speech communications academic press,1985.
L.Lee,S.? Chou G.C., and C.S. Chang ;. A new frequency domain speech scrambling system which does not require frame synchronization. IEEE Transactions on communications, vol.32,pp.444-456,1984.
B.Goldburg, S.Sridharan , and E.Dawson ,Design and cryptanalysis of transform-based analog speech scramblers, IEEE Journal of selected areas on communication ,vol.11, pp.735-743,1993.
A. Jameel, M.Y. Siyal and N. Ahmed, Transform-domain and DSP based secure speech communication system .Elsevier ,Microprocessors and Microsystems , vol.31,pp.335-346,2007.
A.Matsunaga K. Koga , and M. Ohkawa, An analog speech scrambling system using the FFT Technique with High –level Security ,IEEE Journal of selected Areas in communications , vol.74,pp.540-547,1989.
B Goldburg ,E Dawson and S Sridharan ,The Automated Cryptanalysis of Analog speech scramblers , Advances in Cryptology EUROCRYPT 91, lecture notes in computer science , vol.547-1991,pp.422-430,1997.
J.Fridirich , Systemtric ciphers based on two-dimensional chaotic maps.International journal of Bifurcation and chaos ,vol.8.6, pp.1259-1284,19998.
Emad mosa,Nagy W. Messiha ,Osama zahran ,Fathi E. Abd EL –SAMIE, Chaotic encryption of speech signals , International journal of speech Technology, vol .14.4,pp.285-296,2011.
De Andrade , JF ., de campos ,M.L.R ; A polinario , J.A S peech priv cy for modern mobile communication systems ,Acoustics , Speech znd signal processing ,2008. ICASSP 2008. IEEE International Conference on ,pp.1777-1780,2008
S.Rajanarayanan and A.Pushparaghavan, Recent developments in signal encryption – A critical survey ,International journal of scientific and research publications, vol.2.6, pp.1-7,2012.
E.Mosa, N.W.MEssiha ,O.Zahran and F.E Abd El samie ,Encryption of speech signal with multiple secret keys in time and transform domains , vpl ; 13, pp.231-242,2010
NIST, Timit speech corpus ,NIST 1990.