International Association for Cryptologic Research

International Association
for Cryptologic Research


Paper: Selective disclosure credential sets

Jason E. Holt
Kent E. Seamons
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Abstract: We describe a credential system similar to the electronic cash system described by Chaum, Fiat and Naor. Our system uses bit commitments to create selective disclosure credentials which limit what portions of a credential the holder must reveal. We show how credentials from separate issuers can be linked to the same person in order to prevent users from pooling credentials to obtain services no one user could obtain alone. We also describe how to use a blinding technique described by Laurie which may not violate the patents on blind signatures.
  title={Selective disclosure credential sets},
  booktitle={IACR Eprint archive},
  keywords={public-key cryptography / digital credentials, selective disclosure, credential pooling, blind signatures},
  note={ 11998 received 3 Oct 2002, last revised 6 Nov 2002},
  author={Jason E. Holt and Kent E. Seamons},