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Article type: Research Article
Authors: Al-Mejibli, Intisara; * | Ismail, Sura F. b
Affiliations: [a] University of Information Technology and Communications, Baghdad, Iraq | [b] Department of Informatics Systems Management University of Information Technology and Communications, Baghdad, Iraq
Correspondence: [*] Corresponding author. Dr. Intisar Al-Mejibli, University of Information Technology and Communications, Baghdad, Iraq. E-mail: dr.intisar.almejibli@gmail.com.
Abstract: The issues of security and privacy in multimedia data have become of most extreme significance particularly in the applications associated to medical and military sectors. In this paper, an innovative encryption algorithm for real time videos is proposed. The proposed algorithm consists of two phases in both sender and receiver sides. In these two phases, the tasks of compression/encryption and decompression /decryption are performed at sender and receiver sides respectively. The proposal uses H.261 codec in compression/decompression processes and chaotic logistic map system in encryption/decryption processes for private – key generation. The suggested algorithm takes the features of H.261 codec into consideration to achieve high security with less processing time by encrypt the produced intra frame (I frame) and leaving inter-frame (P-frame) without any changing. Proposed algorithm has innovated new strategy in selecting bytes for encryption by encrypt half of bytes in each I-frame or all of them. Most common statistical tests were performed on the obtained results from applying the proposed algorithm and the results were promising in terms of security level and required time for performing two states.
Keywords: Chaotic logistic map, decryption, encryption, H.261, real-time video
DOI: 10.3233/JIFS-171966
Journal: Journal of Intelligent & Fuzzy Systems, vol. 36, no. 3, pp. 2817-2827, 2019
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