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Biometrics-based cryptographic key generation

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3 Author(s)
Yao-Jen Chang ; Comput. & Commun. Res. Labs., Ind. Technol. Res. Inst., Hsinchu, Taiwan ; Wende Zhang ; Tsuhan Chen

Instead of using PINs and passwords as cryptographic keys that are either easy to forget or vulnerable to dictionary attacks, easy-to-carry and difficult-to-transfer keys can be generated based on user-specific biometric information. A framework is proposed to generate stable cryptographic keys from biometric data that is unstable in nature. The proposed framework differs from prior work in that user-dependent transforms are utilized to generate more compact and distinguishable features. Thereby, a longer and more stable bitstream can be generated as the cryptographic key. Experiments are performed on a face database to verify the feasibility of the proposed framework. The preliminary result is very encouraging.

Published in:

Multimedia and Expo, 2004. ICME '04. 2004 IEEE International Conference on  (Volume:3 )

Date of Conference:

27-30 June 2004