Paper 2003/255 Original: eprint.iacr.org/2003/255 ↗
Improved Constructions for Universal Re-encryption.
Abstract
Golle et al introduced universal re-encryption, defining it as re- encryption by a player who does not know the key used for the original encryption, but which still allows an intended player to recover the plaintext. Universal re-encryption is potentially useful as part of many information-hiding techniques, as it allows any player to make ciphertext unidentifiable without knowing the key used. Golle et al’s techniques for universal re-encryption are reviewed, and improved constructions for both simple and hybrid universal re-encryption systems are presented, including a hybrid construction that permits indefinite re-encryptions with better efficiency and an almost-optimally small increase in file size. Some implementational issues and possible future directions are also discussed.
Metadata
- Available format(s)
PDF- Category
- Implementation
- Publication info
- Preprint.
- History
- 2004-04-30: last updated
- 2003-12-20: published
- Short URL
- https://ia.cr/2003/255
- License
- https://creativecommons.org/licenses/by/4.0/
BibTeX
@misc{cryptoeprint:2003/255,
author = {Peter Fairbrother},
title = {Improved Constructions for Universal Re-encryption.},
howpublished = {Cryptology {ePrint} Archive, Paper 2003/255},
year = {2003},
url = {https://eprint.iacr.org/2003/255}
}