一种生物特征与公钥密码相结合的多层次身份认证方案

信息安全技术是保障各种网络应用正常运作的必要支撑，而身份认证是信息安全保障技术的重要组成部分。丈中简单分析了传统网络身份认证技术存在的安全缺陷，然后介绍了生物特征识别技术及其国内外应用情况。最后提出了一种把生物特征识别技术与公钥密码技术相结合的多层次身份认证方案，该方案解决了传统身份认证方案的部分缺点，增强了身份认证安全性，为实现更为安全可靠的网络安全体系提供技术支撑。

A Multi-layer Identity Authentication Scheme Combining Biological Feature and Public Key Cryptosystem

Information security technique is a necessary support for the normal operation of various networks, while identity authentication an important component of information security insurance technique. In this paper, the security flaw of traditional network identity authentication techniques are briefly analyzed first, then, the biometric technology and its application at home and abroad are presented, finally, an identity authentication scheme in combination of biometric technique and public-key cryptographic technique is proposed. This scheme remedies some shortcomings of traditional identity authentication scheme and strengthens the security of identity authentication. Furthermore, thus providing technical support for the realization of secure and reliable network security system.