Systems and Means of Informatics

2015, Volume 25, Issue 2, pp 85-95

NOVEL METHOD FOR ROBUST KEY GENERATION FROM ONLINE BIOMETRIC SIGNATURE

  • V. V. Kuznetsov

Abstract

Existing symmetric encryption algorithms require storage of the secret key. Stored keys are often protected by poorly selected user passwords or pin- codes. Combining biometrics with cryptography is often assumed as a possible solution. This paper describes a novel method for transforming an online biometric signature into a binary vector, which can be used as a cryptographic key. The method is based on a secure sketch scheme and makes it possible to construct 16-bit keys with false accept rate and false reject rate less than 10%.

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