Paper 2015/813 Original: eprint.iacr.org/2015/813 ↗
Revisiting Turning Online Cipher Off
Abstract
In 'Turning Online Ciphers Off', a class of constructions was defined based on layers of secure online ciphers interleaved with simple mixing layers (like reversing and block-shifting). Here we show that an SPRP construction proposed in the work cited is insecure. Howevewr, the same construction is secure under the assumption that the underlying construction is online-but-last ciphers. We include a simpler proof for beyond-birthday security of other constructions proposed in the same work.
Metadata
- Available format(s)
PDF- Category
- Secret-key cryptography
- Publication info
- Preprint.
- History
- 2015-08-17: last updated
- 2015-08-17: published
- Short URL
- https://ia.cr/2015/813
- License
- https://creativecommons.org/licenses/by/4.0/
BibTeX
@misc{cryptoeprint:2015/813,
author = {Ritam Bhaumik and Mridul Nandi},
title = {Revisiting Turning Online Cipher Off},
howpublished = {Cryptology {ePrint} Archive, Paper 2015/813},
year = {2015},
url = {https://eprint.iacr.org/2015/813}
}