Paper 2004/173
Secure Identity Based Encryption Without Random Oracles
Dan Boneh and Xavier Boyen
Abstract
We present a fully secure identity based encryption scheme whose proof of security does not rely on the random oracle heuristic. Security is based on the decisional bilinear Diffie-Hellman assumption. Previous constructions of this type incurred a large penalty factor in the security reduction from the underlying complexity assumption. The security reduction of the present system is polynomial in all the parameters.
Metadata
- Available format(s)
-
PDF PS
- Category
- Public-key cryptography
- Publication info
- Published elsewhere. An extended abstract appears in CRYPTO 2004.
- Keywords
- identity-based encryptionprovable security
- Contact author(s)
- eprint @ boyen org
- History
- 2004-07-21: revised
- 2004-07-21: received
- See all versions
- Short URL
- https://ia.cr/2004/173
- License
-
CC BY
BibTeX
@misc{cryptoeprint:2004/173, author = {Dan Boneh and Xavier Boyen}, title = {Secure Identity Based Encryption Without Random Oracles}, howpublished = {Cryptology {ePrint} Archive, Paper 2004/173}, year = {2004}, url = {https://eprint.iacr.org/2004/173} }