Comparison of Audio Speech Cryptosystem Using 2-D Chaotic Map Algorithms

Published on Oct 10, 2016in Mathematics in Computer Science
· DOI :10.11648/J.MCS.20160104.11
Mahmoud Farouk1
Estimated H-index: 1
Mahmoud Mohamed Farouk6
Estimated H-index: 6
+ 1 AuthorsAhmed Elmhalaway2
Estimated H-index: 2
This paper presents a comparison between different audio speech encryption and decryption techniques for audio speech signals based on 2-D chaotic map algorithms with time and transform domains in a search for best of them and study advantages and disadvantages for each of them. Chaotic algorithms will be used because they have advantages of its casual Conduct and sensitivity to values of parameters and primary conditions that enable chaotic algorithms to fulfill the cryptographic systems. We consider doing simulation tests using MATLAB codes for logistic 2D map, Henon map, Standard map and baker map. Real simulation results show that baker map with TD exhibits best quality for both encryption and decryption and has a well balance between its advantages and disadvantages among other algorithms in comparison.
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Last. Fadhil S. Hasan (Al-Mustansiriya University)H-Index: 5
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Efficient and simple design of speech encryption-based stream cipher is produced and suggested in this paper with name finite precision chaotic map-based stream cipher (FPCM-SC) system. Two pseudo random bits generator (PRBG) are built by hybrid chaotic maps using finite precision format and named finite precision chaotic XOR based PRBG (FPCXOR-BRPB) and finite precision chaotic hopping based PRBG(FPCH-PRBG). The statistical security analysis and speech residual unintelligibility measures are pr...