Efficient Fuzzy Vault Based on Pairing and ItsApplication to Fingerprint Encryption
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Graphical Abstract
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Abstract
Fuzzy vault (FV) scheme, proposed by
Juels and Sudan, is intended to develop new concepts to
bind cryptographic security into biometric authentication
to improve security and protect privacy. But FV is vul-
nerable to some attacks, such as Attacks via record mul-
tiplicity or correlation attacks, Surreptitious key-inversion
attack and Blended substitution attacks. In this paper, a
novel biometric encryption scheme, named Efficient fuzzy
vault (EFV), is developed using pairing-based cryptogra-
phy. EFV scheme provides a higher level of security than
FV as adopting random points instead of chaff points to re-
sist the attacks that FV has difficulty to overcome. In addi-
tion, a complete implementation procedure of fingerprint-
based EFV, based on the automatic alignment of minutiae
converted in polar coordinates using a reference point, is
developed. The security analysis and experiment results
show that EFV is a promising scheme for biometric en-
cryption.
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