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http://dx.doi.org/10.5909/JBE.2020.25.6.1013

Selective Encryption and Decryption Method for IVC Codec  

Lee, Min Ku (Department of Computer Science, Hanyang University)
Kim, Kyu-Tae (Department of Computer Science, Hanyang University)
Jang, Euee S. (Department of Computer Science, Hanyang University)
Publication Information
Journal of Broadcast Engineering / v.25, no.6, 2020 , pp. 1013-1016 More about this Journal
Abstract
This paper presents a selective encryption and decryption method exploiting the start code of the IVC bitstream. The existing encryption methods for video are largely classified into two methods: Naive Encryption Algorithm (NEA) and Selective Encryption Algorithm (SEA). Since NEA encrypts the entire bitstream, it has the advantage of high security but has the disadvantage of high computational complexity. SEA improves the encryption and decryption speed compared to NEA by encrypting a part of the bitstream, but there is a problem that security is relatively low. The proposed method improves the encryption and decryption speed and the security of the existing SEA by using the start code of the IVC bitstream. As a result of the experiment, the proposed method reduces the encryption speed by 96% and the decryption speed by 98% on average compared to the NEA.
Keywords
IVC; start code; video encryption;
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