Enhanced biometric encryption algorithm for private key protection in BioPKI system

作     者：Cheol-Joo Chae Kwang-Nam Choi Kiseok Choi Jae-Soo Kim Yong Ju Shin 

作者机构：Korea Institute of Science and Technology Information 245 DaehangnoYuseong-gu Daejeon Korea 

出 版 物：《Journal of Central South University》 (中南大学学报（英文版）)

年 卷 期：2014年第21卷第11期

页      面：4286-4290页

核心收录：

学科分类：11[军事学] 0810[工学-信息与通信工程] 1105[军事学-军队指挥学] 0806[工学-冶金工程] 08[工学] 0839[工学-网络空间安全] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 110505[军事学-密码学] 081201[工学-计算机系统结构] 110503[军事学-军事通信学] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：supported by the Sharing and Diffusion of National R&D Outcome funded by the Korea Institute of Science and Technology Information 

主　　题：BioPKI system fingerprint biometric encryption secret share 

摘      要：Protection of private key is the most critical part in public key infrastructure(PKI) system since it depends on the confidentiality of private key. Thread of password detection has been known as the vulnerability in this PKI system. Recently, studies have been conducted on Bio PKI system that uses the biometric information of users in order to replace the password type of private key protection in PKI system. However, Bio PKI system also has vulnerability in that biometric information used for protection of private key cannot be reused once it is stolen or lost. So, we propose the method to protect the private key using FIDSEQi which binds sequence to biometric information. The proposed method enhances reusability of biometric information and presents higher attack complexity than the method of authentication by cross matching single biometric information.