Paper 2016/1090
OleF: An Inverse-Free Online Cipher
Ritam Bhaumik and Mridul Nandi
Abstract
Online ciphers, in spite of being insecure against an sprp adversary, can be desirable at places because of their ease of implementation and speed. Here we propose a single-keyed inverse-free construction that achieves online sprp security with an optimal number of blockcipher calls. We also include a partial block construction, without requiring any extra key.
Note: There were some late changes to the Camera-Ready version. This is the preprint of the final submitted version.
Metadata
- Available format(s)
-
PDF
- Category
- Secret-key cryptography
- Publication info
- Published by the IACR in FSE 2017
- Keywords
- OleFonline cipherblockcipherinverse-freediblock
- Contact author(s)
- bhaumik ritam @ gmail com
- History
- 2016-11-29: last of 2 revisions
- 2016-11-22: received
- See all versions
- Short URL
- https://ia.cr/2016/1090
- License
-
CC BY
BibTeX
@misc{cryptoeprint:2016/1090,
author = {Ritam Bhaumik and Mridul Nandi},
title = {{OleF}: An Inverse-Free Online Cipher},
howpublished = {Cryptology {ePrint} Archive, Paper 2016/1090},
year = {2016},
url = {https://eprint.iacr.org/2016/1090}
}
