Paper 2006/012

Certificate-Based Encryption Without Random Oracles

Paz Morillo and Carla Ràfols

Abstract

We present a certificate-based encryption scheme which is fully secure in the standard model. Our scheme is based on the identity-based encryption scheme of Waters \cite{W05}. Although some generic constructions from IBE to CBE has been previously proposed, they use the Random Oracle heuristic or provide less practical schemes than ours. Finally, we point out that one of the existing generic constructions going from IBE to CBE is flawed.

Note: Several typos and other small mistakes have been corrected.

Metadata
Available format(s)
PDF PS
Publication info
Published elsewhere. Unknown where it was published
Keywords
public-key cryptographyidentity-based encryptioncertificate-based encryption
Contact author(s)
crafols @ ma4 upc edu
History
2006-05-24: revised
2006-01-11: received
See all versions
Short URL
https://ia.cr/2006/012
License
Creative Commons Attribution
CC BY

BibTeX

@misc{cryptoeprint:2006/012,
      author = {Paz Morillo and Carla Ràfols},
      title = {Certificate-Based Encryption Without Random Oracles},
      howpublished = {Cryptology ePrint Archive, Paper 2006/012},
      year = {2006},
      note = {\url{https://eprint.iacr.org/2006/012}},
      url = {https://eprint.iacr.org/2006/012}
}
Note: In order to protect the privacy of readers, eprint.iacr.org does not use cookies or embedded third party content.