Fast Gray code sequence subsection scrambling video encryption algorithm based on chaos system
Jianbin Xie · Journal of Communications · 2007
An improved fast chaos based video complete-algorithm by using subsection scrambling method according to Gray code sequences was proposed.Firstly,a one-off L-bits binary key producing method which uses iterative mode be-tween logistic-map and chebyshev-map in order to overcome the bugs of the invalid-keys and the quasi invalid-keys ex-isting in one dimension chaotic dynamical system was adopted,and then the Gray code sequences which have good space-filling and easy generated characteristics were used to scramble key data in the video flow.At the same time,the same format and size were preserved in the encrypted files.Experimental results show that the proposed algorithm has high security and can effectively avoid the attack of the known plaintext,and it can work rapidly and be played normally.Its transplantable property is also good.