A Practical Method for Generating Digital Signatures Using Biometrics

Taekyoung KWON
Hyung-Woo LEE
Jae-il LEE

Publication
IEICE TRANSACTIONS on Communications   Vol.E90-B    No.6    pp.1381-1389
Publication Date: 2007/06/01
Online ISSN: 1745-1345
DOI: 10.1093/ietcom/e90-b.6.1381
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Network
Keyword: 
authentication,  digital signature,  biometrics,  public key infrastructure,  

Full Text: PDF(395.7KB)>>
Buy this Article


Summary: 
When we consider user's convenience for electronic transactions, it might be desirable to generate a digital signature using biometrics. However, it is not easy nor practicable in today's communications environment because of inaccurate measuring and potential hill-climbing attacks with regard to biometrics, unless specific hardware storage is provided for manipulating signature keys or biometric templates securely. In this paper, we study a simple practical method for biometrics based digital signature generation without such restriction. It is based on the existing tools in software in our proposed model where a general digital signature such as RSA can be applied without losing its security. This is not a cryptography paper but rather written from the practical perspectives.