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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 inter-frame 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.
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