CSCL系统中的数据库安全

Database security in CSCL system

CSCL系统能够帮助分布在不同地域的学习者共享资源以提高学生的学业成绩。但资源在网络上广泛共享的特点使系统容易受到各种攻击,如何保障CSCL系统的数据库安全和对话安全成为重要问题。通过分析CSCL系统及其数据库可能受到的各种安全威胁,重点对数据库用户身份认证、数据库数据安全传输以及数据库安全管理等几方面进行了研究。实验结果表明,提出的安全方案能够较好地保障CSCL系统中的数据库安全。

CSCL System enable the learners distributed in different places to improve their achievements with sharing resources. However, the widely distributed resources make the system easy to be attacked from intemet. So it is important to ensure the database and trans- mission security of CSCL system. Firstly, the potential threats to CSCL system and database are analyzed, and then an approach to users authentication, security data transmission and management of database are proposed. The defensive strategies is proved to be effective to ensure the database security in CSCL system by abundant experiments.