MODIFIED AES APPROACHES IN ENCRYPTION AND DECRYPTION FOR INSECURE ENVIRONMENT
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Abstract
The security of video applications such as commercial videos, military videos and others have become an
important field of research recently. One of the most secure algorithms is Advanced Encryption Standard
(AES) algorithm;however this algorithm is inefficient for dealing with video encryption due to its
slowness property. This paper proposes a new modified of AES to make it more suitable for encrypting
digital video. The Modification focuses on the slowest transformations in original AES which is mix
columns transformations and replace them with new Henon map chaotic based mask and one mix
columns transformation. Resulting in a significant reduction in encryption and decryption time and
enhance the security level of AES algorithm, and also the key space is increased as observed in the
simulation results of proposed system.
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