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A Biometric Identity Based Signature Scheme

Authors:
Andrew Burnett
Adam Duffy
Tom Dowling
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URL: http://eprint.iacr.org/2004/176
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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.
BibTeX
@misc{eprint-2004-12148,
  title={A Biometric Identity Based Signature Scheme},
  booktitle={IACR Eprint archive},
  keywords={public-key cryptography / identity based signature and biometrics},
  url={http://eprint.iacr.org/2004/176},
  note={ cryptogrp@cs.may.ie 12622 received 22 Jul 2004, last revised 23 Jul 2004},
  author={Andrew Burnett and Adam Duffy and Tom Dowling},
  year=2004
}