Paper 2022/291 Original: eprint.iacr.org/2022/291 ↗
Provable security of CFB mode of operation with external re-keying
Abstract
In this article the security of the cipher feedback mode of operation with regular external serial re-keying aiming to construct lightweight pseudo-random sequences generator is investigated. For this purpose the new mode of operation called Multi-key CFB, MCFB is introduced, and the estimations of provable security of this new mode in the LOR-CPA model are obtained. Besides that, the counterexample to well-known result of Abdalla-Bellare about security of encryption scheme with external re-keying is obtained.
Metadata
- Available format(s)
PDF- Category
- Secret-key cryptography
- Publication info
- Preprint.
- History
- 2022-05-30: last updated
- 2022-03-07: published
- Short URL
- https://ia.cr/2022/291
- License
- https://creativecommons.org/licenses/by/4.0/
BibTeX
@misc{cryptoeprint:2022/291,
author = {Vadim Tsypyschev and Iliya Morgasov},
title = {Provable security of CFB mode of operation with external re-keying},
howpublished = {Cryptology {ePrint} Archive, Paper 2022/291},
year = {2022},
url = {https://eprint.iacr.org/2022/291}
}