基于CNN超混沌的视频加密新算法

针对视频数据实时性高,数据量大等特点,提出了一种基于细胞神经网络的视频加密新算法.该算法以五维CNN作为密钥源,根据明文视频帧的尺寸和明文视频帧本身来选择加密密钥,依据扩散思想,对视频进行加密处理.该算法加/解密速度快,可对任何格式的视频数据实现保密通信,具备通用性,且密钥敏感性和明文敏感性强,密钥空间大,可有效抵抗穷举攻击、统计分析攻击、已知明文攻击、选择明文攻击和密文攻击,安全性更高,具有一定的实用价值.

On a New Video Encryption Algorithm Based on CNN Hyperchaos

Aiming at video data high real-time performance,the characteristics of large amount of data, proposed a new video encryption algorithm based on cellular neural network.In the algorithm,five dimen-sional CNN hyperchaotic system have been used as key source,according to the plaintext video frame size and the plaintext video frame itself,selected the encryption key,based on diffusion theory,encrypted vid-eo.The encryption and decryption speed of the algorithm is fast,any format video data can achieve secure communications,has universality;the key sensitivity and plaintext sensitivity are strong,the key space is large.Can effectively resist brute attack,statistical attack,known plaintext attack,chosen plaintext at-tack and cipher text attack,has higher security and a certain practical value.