Paper 2017/282 Original: eprint.iacr.org/2017/282 ↗
Collapsing sponges: Post-quantum security of the sponge construction
Abstract
We investigate the post-quantum security of hash functions based on the sponge construction. A crucial property for hash functions in the post-quantum setting is the collapsing property (a strengthening of collision-resistance). We show that the sponge construction is collapsing (and in consequence quantum collision-resistant) under suitable assumptions about the underlying block function. In particular, if the block function is a random function or a (non-invertible) random permutation, the sponge construction is collapsing.
Metadata
- Available format(s)
PDF- Category
- Foundations
- Publication info
- Preprint.
- History
- 2017-03-30: last updated
- 2017-03-30: published
- Short URL
- https://ia.cr/2017/282
- License
- https://creativecommons.org/licenses/by/4.0/
BibTeX
@misc{cryptoeprint:2017/282,
author = {Dominique Unruh},
title = {Collapsing sponges: Post-quantum security of the sponge construction},
howpublished = {Cryptology {ePrint} Archive, Paper 2017/282},
year = {2017},
url = {https://eprint.iacr.org/2017/282}
}