A Biometric Identity Based Signature Scheme

Andrew Burnett; Adam Duffy; Tom Dowling

Paper 2004/176

A Biometric Identity Based Signature Scheme

Andrew Burnett, Adam Duffy, and Tom Dowling

Abstract

We describe an identity based signature scheme that uses biometric information to construct the public key. Such a scheme would be beneficial in a legal dispute over whether a contract had been signed or not by a user. A biometric reading provided by the alleged signer would be enough to verify the signature. We make use of Fuzzy extractors to generate a key string from a biometric measurement. We use this biometric based key string and an elliptic curve point embedding technique to create the public key and corresponding private key. We then make use of a pairing based signature scheme to perform signing and verification with these keys. We describe a possible attack on this system and suggest ways to combat it. Finally we describe how such a biometric signature scheme can be developed by reusing existing components in our Java Identity Based Encryption implementation. The design allows traditional as well as biometric identity based signatures.

Note: typo correction

Metadata

Available format(s): PDF
Category: Public-key cryptography
Publication info: Published elsewhere. Unknown where it was published
Keywords: identity based signature and biometrics
Contact author(s): cryptogrp @ cs may ie
History: 2004-07-23: revised; 2004-07-23: received; See all versions
Short URL: https://ia.cr/2004/176
License: CC BY

BibTeX

@misc{cryptoeprint:2004/176,
      author = {Andrew Burnett and Adam Duffy and Tom Dowling},
      title = {A Biometric Identity Based Signature Scheme},
      howpublished = {Cryptology {ePrint} Archive, Paper 2004/176},
      year = {2004},
      url = {https://eprint.iacr.org/2004/176}
}