基于复合混沌的数字图像加密算法研究.pdf

汕头大学
硕士学位论文
基于复合混沌的数字图像加密算法研究
姓名:林俊晓
申请学位级别:硕士
专业:信号与信息处理
指导教师:沈民奋
20090501
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Abstract
With the development work technology and the increasingly information exchange,
information security issues have e increasingly prominent. Because of the rapid
development of information technology, increasing information security and new information
security theory and advanced technologies are required urgently. With the advantages of intuitive
and vivid, digital image which is the most important expression of multi-media information,has
been referred to as the current expression as well as the future mainstream of information. While
it brings convenience to people's lives, and in the same time there are many security risks.
Traditional encryption methods have been put forward to the challenge because of its large
amount of data, and high redundancy. Chaos Theory in the image information of encryption
came into being, reflecting the strong vitality.
This paper introduces the status of cryptography in detail,analyses a variety of digital image
encryption pares to vrious encryption methods and the performance of the