Certificate-Based Encryption Without Random Oracles

Paz Morillo; Carla Ràfols

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 cryptography identity-based encryption certificate-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: 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},
      url = {https://eprint.iacr.org/2006/012}
}