Paper 2012/326

New Proof Methods for Attribute-Based Encryption: Achieving Full Security through Selective Techniques

Allison Lewko and Brent Waters

Abstract

We develop a new methodology for utilizing the prior techniques to prove selective security for functional encryption systems as a direct ingredient in devising proofs of full security. This deepens the relationship between the selective and full security models and provides a path for transferring the best qualities of selectively secure systems to fully secure systems. In particular, we present a Ciphertext-Policy Attribute-Based Encryption scheme that is proven fully secure while matching the efficiency of the state of the art selectively secure systems.

Metadata
Available format(s)
PDF
Publication info
Published elsewhere. this is the full version of a paper appearing in Crypto 2012
Contact author(s)
alewko @ cs utexas edu
History
2012-06-12: received
Short URL
https://ia.cr/2012/326
License
Creative Commons Attribution
CC BY

BibTeX

@misc{cryptoeprint:2012/326,
      author = {Allison Lewko and Brent Waters},
      title = {New Proof Methods for Attribute-Based Encryption: Achieving Full Security through Selective Techniques},
      howpublished = {Cryptology ePrint Archive, Paper 2012/326},
      year = {2012},
      note = {\url{https://eprint.iacr.org/2012/326}},
      url = {https://eprint.iacr.org/2012/326}
}
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