Concealing Complex Policies with Hidden Credentials

Robert Bradshaw; Jason Holt; Kent Seamons

Paper 2004/109

Concealing Complex Policies with Hidden Credentials

Robert Bradshaw, Jason Holt, and Kent Seamons

Abstract

Hidden credentials are useful in protecting sensitive resource requests, resources, policies and credentials. We propose a significant improvement in decryption performance when implementing hidden credentials using the Franklin/Boneh IBE. We also propose a substantially improved secret splitting scheme for enforcing complex policies, and show how it improves concealment of policies from nonsatisfying recipients.

Metadata

Available format(s): PDF
Category: Public-key cryptography
Publication info: Published elsewhere. unpublished
Keywords: anonymity
Contact author(s): eprint @ lunkwill org
History: 2004-05-09: received
Short URL: https://ia.cr/2004/109
License: CC BY

BibTeX

@misc{cryptoeprint:2004/109,
      author = {Robert Bradshaw and Jason Holt and Kent Seamons},
      title = {Concealing Complex Policies with Hidden Credentials},
      howpublished = {Cryptology {ePrint} Archive, Paper 2004/109},
      year = {2004},
      url = {https://eprint.iacr.org/2004/109}
}