Online Teaching System Security Mechanisms

Nowadays, with the development of computer technology and communication technology, the computer has been used in all aspects of daily life and it has become an important tool for promoting the development of human society. While the computer has brought the convenience of people's production and life, but there are a series of problems accompanied to be solved.The database system security is an important component.In this paper, choose the security of online teaching system as the carrier to study the mechanism and discuss the safety of some of the common security policy to improve the database system, from the encrypted size, encryption algorithm, key management and other three perspectives. The article discusses basic requirements of encrypted database from the three aspects.. It also analyzes three levels in database encryption:the operating system level, database management system kernel layer and the database management system outer layer. The system of MySQL database security mechanism is discussed in the passage. It also gives simple introduction to the function and the realizing method of each module of the on-line teaching system. And using the methods discussed in the article, we can give methods and measures to improve the safety of network teaching system pertinently. This article finally puts forward the issues to be solved and further research.