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Authors: Abdul Monem S. Rahma , Basima Z.Yacob
Description:
Advances in digital video transmission have increased in the past few years. Security and privacy issues of the transmitted data have become an important concern in multimedia technology. Digital video stream is quite different from traditional textual data because interframe dependencies exist in digital video. Special digital video encryption algorithms are required because of their special characteristics, such as coding structure, large amount of data and real-time constraints. This paper presents a real-time partial encryption to digital video technique depends on Dynamic Dual Key Encryption Algorithm Based on joint Galois Fields which is fast enough to meet the real-time requirements with high level of security. In this technique the I-frame (Intra-frame) of the digital video scene is extracted and decomposed the color picture into its three color channels: luma channel (Y) and two chrominance channels Cb and Cr, with note that the frames of digital video is in YCbCr color system, the Dynamic Dual Key Encryption Algorithm Based on joint Galois Fields is applied to the Y channel. The encryption technique achieves best timing results, and it provides high level of security by its great resistant against brute force attacks.
Paper Type: Research
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