The Application of Improved Fuzzy Vault Key Binding Algorithm in Fingerprint Feature Encryption System
F. Wang*, B. Han, L. Niu, & Z. Y. Liu
School of Computer and Information Engineering College, Fu Yang Teachers College, Fu Yang, 236037, Anhui, China
ABSTRACT: For traditional encryption algorithm existing key security management problem, an improved fingerprint minutiae key binding method is proposed based on Fuzzy Vault. The algorithm has the following improvements: Firstly, we effectively fuse the Lagrange polynomial interpolation formula and personal information. Secondly, we make use of helper data direction angle information to align center point, so that the algorithm has the translation rotation invariant property. Experimental result shows that: the algorithm not only can well protect the security key, but also there is a very low error rate.
Keywords : Fuzzy Vault; Key binding; Fingerprint minutiae; Helper data.
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