Mahmoud Farouk
Menoufia University
AlgorithmPermutationEncryptionCryptographySensitivity (control systems)Security levelChaoticSubstitution (logic)MATLABHénon mapSecurity layerComputer scienceCryptosystemStandard mapArithmetic
2Publications
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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 co...
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#1Mahmoud Mohamed Farouk (Menoufia University)H-Index: 6
#2Osama S. FaragallahH-Index: 16
Last. Hala S. El-sayed (Menoufia University)H-Index: 9
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This paper presents an enhanced audio speech cryptosystem based on three enhancements for permutation and substitution of speech segments using multiple secret keys and permutations in time and transform domains. The first enhancement method is based on repeating the first and last permutation steps in both encryption/decryption procedures for several times to enhance the security level. The second and third enhancement methods are based on adding two additional secret keys generated from the or...
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