A Multiple Chaotic Video Encryption System Based on DM642

In order to transmit the encrypted video signal on the TI Company´s digital signal processor DM642, we put forward a video encrypted algorithm based on the multiple logistic mapping. It combines H. 264 coding standard and use the chaotic sequences produced by three logistic mapping to scramble and transform the quantitative data. Moreover, it ensures that different frames have different encrypted sequences. The results of the practical operation on DM642 show that the algorithm has better initial value sensitivity and larger key space and can resist exhaustive attack, differential attack, and chosen-plaintext attack effectively. It can also meet the need of real-time very well with safety guarantee.