Generation of replaceable cryptographic keys from dynamic handwritten signatures


Yip, , WK and Goh, , A and Ngo, , DCL and Teoh, , ABJ (2006) Generation of replaceable cryptographic keys from dynamic handwritten signatures. ADVANCES IN BIOMETRICS, PROCEEDINGS , 3832. pp. 509-515. ISSN 0302-9743

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In this paper, we present a method for generating cryptographic keys that can be replaced if the keys are compromised and without requiring a template signature to be stored. The replaceability of keys is accomplished using iterative inner product of Goh-Ngo [1] Biohash method, which has the effect of re-projecting the biometric into another subspace defined by user token. We also utilized a modified Chang et al [2] Multi-state Discretization (MSD) method to translate the inner products into binary bit-strings. Our experiments indicate encouraging result especially for skilled and random forgery whereby the equal error rates are < 6.7% and similar to 0% respectively, indicating that the keys generated are sufficiently distinguishable from impostor keys.

Item Type: Article
Subjects: Q Science > QA Mathematics > QA71-90 Instruments and machines > QA75.5-76.95 Electronic computers. Computer science
Divisions: Faculty of Information Science and Technology (FIST)
Depositing User: Ms Rosnani Abd Wahab
Date Deposited: 10 Aug 2011 07:00
Last Modified: 10 Aug 2011 07:00


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