Cryptographic keys from dynamic hand-signatures with biometric secrecy preservation and replaceability

Kuan, , YW and Teoh, , A and Ngo, , D and Goh, , A (2005) Cryptographic keys from dynamic hand-signatures with biometric secrecy preservation and replaceability. Fourth IEEE Workshop on Automatic Identification Advanced Technologies, Proceedings. pp. 27-32.

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Abstract

We propose a method of extracting cryptographic key from dynamic handwritten signatures that does not require storage of the biometric template or any statistical information that could be used to reconstruct the biometric data. Also, the keys produced are not permanently linked to the biometric hence, allowing them to be replaced in the event of key compromise. This is achieved by incorporating randomness which provides high-entropy to the naturally low-entropy biometric key using iterative inner-product method as in Goh-Ngo, and modified multiple-bit discretization that deters guessing from key statistics. Our proposed methodology follows the design principles of block ciphers to result in unpredictable key space and secure construction.

Item Type: Article
Subjects: Q Science > QA Mathematics > QA75.5-76.95 Electronic computers. Computer science
Divisions: Faculty of Information Science and Technology (FIST)
Depositing User: Ms Rosnani Abd Wahab
Date Deposited: 23 Aug 2011 01:20
Last Modified: 23 Aug 2011 01:20
URI: http://shdl.mmu.edu.my/id/eprint/2372

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