It’s necessary to study novel and safer cryptosystem to meet the current safety requirements in the area of image encryption. The application of new technology, the rapid enhancement of computing capacity and large data analysis, caused the current image encryption algorithms to emerge the hidden dangers in security. Compared with the text, it has the characteristics of strong correlation between adjacent pixels, large amount of data and redundant information, so that the conventional encryption methods such as AES and DES have encountered severe challenges 1. Images are widely used in the fields of information exchange, business, personal privacy, military and so on, therefore, it occupies an increasing proportion in the network information space.
Nowadays, with the rapid development of big data and mobile internet, media information especially image is gradually becoming the most important information carrier in social communication.
