Paper 2022/1146
A Sponge-Based PRF with Good Multi-user Security
Abstract
Both multi-user PRFs and sponge-based constructions have generated a lot of research interest lately. Dedicated analyses for multi-user security have improved the bounds a long distance from the early generic bounds obtained through hybrid arguments, yet the bounds generally don't allow the number of users to be more than birthday-bound in key-size. Similarly, known sponge constructions suffer from being only birthday-bound secure in terms of their capacity.
We present in this paper
Metadata
- Available format(s)
-
PDF
- Category
- Secret-key cryptography
- Publication info
- Published elsewhere. SAC 2022
- Keywords
- Sponge Multi-User PRF public permutation
- Contact author(s)
-
bhattacharjeearghya29 @ gmail com
bhaumik ritam @ gmail com
mridul nandi @ gmail com - History
- 2022-09-05: approved
- 2022-09-03: received
- See all versions
- Short URL
- https://ia.cr/2022/1146
- License
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CC BY-SA
BibTeX
@misc{cryptoeprint:2022/1146, author = {Arghya Bhattacharjee and Ritam Bhaumik and Mridul Nandi}, title = {A Sponge-Based {PRF} with Good Multi-user Security}, howpublished = {Cryptology {ePrint} Archive, Paper 2022/1146}, year = {2022}, url = {https://eprint.iacr.org/2022/1146} }