Enhanced Biometrics-based Remote User Authentication Scheme Using Smart Cards
Il-Soo Jeon, Hyunsung Kim, Myung-Sik Kim · 2011
Secure and efficient authentication scheme has been a very important issue with the development of networking technologies. Li and Hwang proposed an efficient biometrics-based remote user authentication scheme using smart cards. However, recently, Li et al. pointed out that their scheme is vulnerable to the man-in-the-middle attack, and does not provide proper authentications, and Li et al. proposed an improved biometrics-based authentication scheme. These schemes are vulnerable to various attacks even if the schemes are based on tamper-resistant technologies. Tamper-resistant technologies have been developed with the various applications of smart cards. Therefore, we will assume that the user could use the tamper-resistant smart card in this paper. First of all, this paper shows that Li et al.’s scheme is vulnerable to the replay attack and has a weakness to the password changing scheme even if it is assumed that the scheme could use the tamper-resistant smart cards. Furthermore, we propose an enhanced authentication scheme to solve the security flaws in the two schemes.