中文摘要：

为了提高图书馆无线局域网中用户身份认证的质量,提出基于免疫否定选择的身份认证机制。该认证机制基于生物免疫系统T细胞识别自体和非自体的原理,把合法用户的登录请求看作自体,非法用户的登录请求看作非自体,利用否定选择过滤非法用户的登录请求。实验结果表明,该身份认证方法能够承受各种口令攻击,有效过滤非法用户的登录请求,具有广泛的应用前景和推广价值。

英文摘要：

To improve the quality of user identity authentication in library wireless local area network（WLAN）, a novel user identity authentication based on immune negative selection is presented.The identity authentication is inspired by the principle of biology immune T cell recognizing self and non-self, the login request of legal users are regarded as self, the login request of illegal users are regarded as non-self, and the login request of illegal users are filtered from the negative selection.Simulation tests show that the identity authentication system can stand with password attacks, filtrate out invalid user login requests availably, and have advantages of good performance and applying prospect.