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生物识别加密技术通过密码学理论与生物特征相结合达到加强网络安全的目的。通过人类行为或者物理特征来识别个人身份是最可靠的识别方式。加密理论则进一步保障信息安全性,其对安全的保障程度取决于密匙强度,而这依存于秘钥的长度。传统加密算法中的秘钥是随机生成的,因此与用户无关联而难于记忆。生物识别加密技术通过用户的生物学数据将密匙与用户建立绑定免去记忆密匙的限制,本文基于相关加密理论,提出一种基于指纹识别的可撤销密匙生成算法。通过指纹数据库验证,本算法很好的解决了生物识别加密问题。
Biometric encryption technology through the combination of cryptography theory and biological characteristics to achieve the purpose of strengthening network security. Identifying individuals through human behavior or physical characteristics is the most reliable way of identifying them. Encryption theory is to further protect the information security, the degree of security depends on the key strength, which depends on the length of the key. The key of the traditional encryption algorithm is randomly generated, so it is difficult to remember with no correlation with the user. Biometrics encryption technology is based on user’s biological data to bind the key with the user to avoid the restriction of the memory key. Based on the relevant encryption theory, this paper proposes a revocable key generation algorithm based on fingerprint identification. Fingerprint database authentication, the algorithm is a good solution to the problem of biometric encryption.