基于指纹和数字水印的网络身份认证系统研究

数字水印作为一种新型的信息隐藏技术而成为目前业界研究的热点.从数字水印和指纹识别技术相结合的角度,利用数字水印的隐藏性和指纹识别的唯一性,实现了对用户身份的双重认证,大大增强了网络身份认证的安全性和可靠性,是一种强身份认证方案.现提出一种基于离散余弦变换和奇异值分解相结合的数字水印算法.实验结果表明,该算法具有很好的稳健性,提高了用户身份验证的效率,取得了很好的效果.

Research of Authentication System Based on Fingerprint and Digital Watermarking

As a new type of information-concealing technology,digital watermarking has become a focus of research in the industry.In light of the combination of the technologies of watermarking and fingerprint recognition,and taking advantage of the invisibility of watermarking and the uniqueness of fingerprint recognition,thus realizing the dual authentication of users' identification.This is a kind of powerful pattern of authentication,and greatly improves the reliability and security of network authentication.It is also proposed a hybrid watermarking algorithm based on DCT and SVD.Experimental results show that the watermarking algorithm performs well in robustness and raises the efficiency of the authentication of users',and has obtained the good effect.