聊天信息安全管理系统设计与实现

近年来随着互联网技术的快速发展,聊天软件在满足人们信息快速传递需求的同时也埋下传播非法信息的隐患。聊天信息安全管理系统可以帮助管理员对聊天信息进行过滤从而管理用户行为,锁定发布含有敏感词汇信息和文件的用户。文章设计并实现以消息过滤规则模块为核心并包含3种模式匹配算法的聊天信息安全管理系统,用于对用户的聊天信息及传输文件进行安全筛查;系统还包括用户日志、用户过期管理和用户状态管理等模块,提供管理员用户日志、用户管理表格、封号名单表格等信息,从而进一步管理用户账号。此外,为了提高系统自身安全性,系统还进行密码格式检测、账户有效期限制、登录失败等安全设计。

With the rapid development of network technology in recent years, the existence of chat software, apart from its great facilitation to the rapid transmission of our information needed, also brings some hidden dangers by spreading some illegal information. To facilitate the administrator to manage the user’s behavior by filtering chat messages and locking user’s publication of information and files with sensitive words, a message filtering rule management module is designed as the core of the chat information security management system, including three pattern matching algorithms, namely BF algorithm, KMP algorithm, and BM algorithm, so as to realize the security screening of users’ chat information and transmitted files. This system also provides user log, user expiration management, and user state management modules for the purpose of providing the administrator with the information of user log, user management form, and block list form, to further help administrators to understand the user account. To improve the system’s security itself, designs are carried out of the password format detection,account expiry limit, and login failure.