Fingerprint Template Protection Using One-Time Fuzzy Vault
Woo Yong Choi · KSII Transactions on Internet and Information Systems · 2011
The fuzzy vault scheme has emerged as a promising solution to user privacy and fingerprint template security problems.Recently, however, the fuzzy vault scheme has been shown to be susceptible to a correlation attack.This paper proposes a novel scheme for one-time templates for fingerprint authentication based on the fuzzy vault scheme.As in one-time passwords, the suggested method changes templates after each completion of authentication, and thus the compromised templates cannot be reused.Furthermore, a huge number of chaff minutiae can be added by expanding the size of the fingerprint image.Therefore, the proposed method can protect a user's fingerprint minutiae against the correlation attack.In our experiments, the proposed approach can improve the security level of a typical approach against brute-force attack by the factor of 10 34 .