Paper 2019/046
Block-Anti-Circulant Unbalanced Oil and Vinegar
Alan Szepieniec and Bart Preneel
Abstract
We introduce a new technique for compressing the public keys of the UOV signature scheme that makes use of block-anti-circulant matrices. These matrices admit a compact representation as for every block, the remaining elements can be inferred from the first row. This space saving translates to the public key, which as a result of this technique can be shrunk by a small integer factor. We propose parameters sets that take into account several important attacks.
Metadata
- Available format(s)
- Category
- Public-key cryptography
- Publication info
- Published elsewhere. SAC 2019
- Keywords
- multivariate quadraticpost-quantumunbalanced oil and vinegar
- Contact author(s)
- alan @ nervos org
- History
- 2019-06-20: last of 2 revisions
- 2019-01-25: received
- See all versions
- Short URL
- https://ia.cr/2019/046
- License
-
CC BY
BibTeX
@misc{cryptoeprint:2019/046, author = {Alan Szepieniec and Bart Preneel}, title = {Block-Anti-Circulant Unbalanced Oil and Vinegar}, howpublished = {Cryptology {ePrint} Archive, Paper 2019/046}, year = {2019}, url = {https://eprint.iacr.org/2019/046} }