Paper 2015/1210 Original: eprint.iacr.org/2015/1210 ↗
Quantum Security of the Fujisaki-Okamoto and OAEP Transforms
Abstract
In this paper, we present a hybrid encryption scheme that is chosen ciphertext secure in the quantum random oracle model. Our scheme is a combination of an asymmetric and a symmetric encryption scheme that are secure in a weak sense. It is a slight modification of the Fujisaki-Okamoto transform that is secure against classical adversaries. In addition, we modify the OAEP-cryptosystem and prove its security in the quantum random oracle model based on the existence of a partial-domain one-way injective function secure against quantum adversaries.
Metadata
- Available format(s)
PDF- Publication info
- Preprint.
- History
- 2015-12-19: last updated
- 2015-12-19: published
- Short URL
- https://ia.cr/2015/1210
- License
- https://creativecommons.org/licenses/by/4.0/
BibTeX
@misc{cryptoeprint:2015/1210,
author = {Ehsan Ebrahimi Targhi and Dominique Unruh},
title = {Quantum Security of the Fujisaki-Okamoto and OAEP Transforms},
howpublished = {Cryptology {ePrint} Archive, Paper 2015/1210},
year = {2015},
url = {https://eprint.iacr.org/2015/1210}
}