Research on Computer Network Security and Encryption Technology

With the development of global information technology and popularization of Internet, computer network security issues become the focus of attention. Data transmission on the network should ensure its confidentiality, the authenticity, integrity and non-repudiation. The only effective means of solving these problems is the use of modern cryptography. As the core technology of information security, encryption technology has got more and more people's attention. Application of cryptographic techniques as before, no longer confined to the military, political and diplomatic fields, its commercial value and social value began to be widely recognized.