Based on attack model of database, A model of database intrusion prevention system (DIPS) is proposed. The model extends the COAST firewall model with intrusion detection and updates database security from passive protection to proactive protection.

• 本文在分析数据库入侵攻击的基础上提出了一个层次化的数据库入侵防护模型，该模型是在Coast通用防火墙模型的基础之上，扩展了数据库的入侵检测功能，实现了数据库的安全保护由被动防御向主动防御的转变。