Study on Image Encryption Algorithm Based on Logistic Chaotic System

With the rapid development of computer and network technology, a lot of information is transmitted through the computer and network, but there are lots of online digital image hiding information extraction software and hacker's attacks, even if the information is hidden and not visible, the hackers still have the possibility of extracted by software calculation. Therefore, choosing suitable digital image encryption algorithm before information hiding processing becomes an ideal choice. This paper proposed a new binarization algorithm of chaotic sequences based on Logistic mapping, and this algorithm could keep the good randomness and initial sensitivity of the original chaotic sequence, using the obtained binary sequence to encrypt the image achieved good security.