期刊名称：International Journal of Advanced Computer Science and Applications(IJACSA)
印刷版ISSN：2158-107X
电子版ISSN：2156-5570
出版年度：2019
卷号：10
期号：11
页码：658-668
出版社：Science and Information Society (SAI)
摘要：The fuzzy commitment scheme (FCS) is one of the
most effective biometric cryptosystems (BCs) that provide secure
management of cryptographic keys using biometric templates. In
this scheme, error correcting codes (ECCs) are firstly employed
to encode a cryptographic key into a codeword which is then
secured via linking (committing) it with a biometric template of
the same length. Unfortunately, the key length is constrained by
the size of the adopted biometric template as well as the employed
ECC(s). In this paper, we propose a secure iris template protection
scheme that combines cancelable biometrics with the FCS in
order to secure long cryptographic keys without sacrificing the
recognition accuracy. First, we utilize cancelable biometrics to
derive revocable templates of large sizes from the most reliable
bits in iris codes. Then, the FCS is applied to the obtained
cancelable iris templates to secure cryptographic keys of the
desired length. The revocability of cryptographic keys as well
as true iris templates is guaranteed due to the hybridization of
both techniques. Experimental results show that the proposed
hybrid system can achieve high recognition accuracy regardless
of the key size.
