Using PRNG Generated Templates to Protect Fingerprint Database

Qinghai Gao and Kamal Shahrabi

Journal of Information Privacy and Security, 2012, vol. 8, issue 2, 18-32

Abstract: Fingerprint databases are widely used in background/criminal investigation and physical access control. However, the security mechanisms protecting these databases are often inadequate. Once a hacker or an insider obtains a copy of a database the fingerprints in the database can be utilized easily to conduct identity theft or impersonation. Therefore, it is extremely important to protect the database against possible misuses. In this paper we propose using synthetic fingerprint minutiae templates generated with pseudorandom number generator to protect genuine fingerprint templates. Our experimental results show that fingerprint minutiae templates can still match successfully even after being inserted with large number of foreign minutiae and that the pseudorandomly generated synthetic minutiae templates can be utilized to protect real templates.

Date: 2012
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DOI: 10.1080/15536548.2012.10845653

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