Paper 2009/168 Original: eprint.iacr.org/2009/168 ↗
A Second Pre-image Attack Against Elliptic Curve Only Hash (ECOH)
Abstract
We present a second pre-image attack on ECOH. Our attack requires $2^{143}$ time for ECOH-224 and ECOH-256, $2^{206}$ time for ECOH-384, and $2^{287}$ time for ECOH-512. The attack sets the checksum block to a fixed value and uses a collision search on the elliptic curve points.
Metadata
- Available format(s)
PDF- Category
- Secret-key cryptography
- Publication info
- Preprint.
- History
- 2009-04-10: last updated
- 2009-04-10: published
- Short URL
- https://ia.cr/2009/168
- License
- https://creativecommons.org/licenses/by/4.0/
BibTeX
@misc{cryptoeprint:2009/168,
author = {Michael A. Halcrow and Niels Ferguson},
title = {A Second Pre-image Attack Against Elliptic Curve Only Hash (ECOH)},
howpublished = {Cryptology {ePrint} Archive, Paper 2009/168},
year = {2009},
url = {https://eprint.iacr.org/2009/168}
}