Research of Chaos Encryption Algorithm Based on Logistic Mapping

With the development of network technique and the increasing frequency of information exchange, the research of information security technique is getting more and more important. As a special nonlinear phenomenon, chaos has many properties worthy to be applied. Chaos cryptogram has a considerable advantage in the encryption of multimedia information. Basing on the character that most information on the Internet today is transmitted in the form of stream and transferred from the initial crunode to other crunodes in the form of one dimension data in the sequence of plain message ,we propose to adjust the corresponding sequence of key encryption and plain message to improve anti-decryption greatly and shows its merits and demerits by analyzing this arithmetic.