Plactic signatures (insecure?)

Daniel R.  L.  Brown

Paper 2021/938

Plactic signatures (insecure?)

Daniel R. L. Brown, BlackBerry

Abstract

Plactic signatures use the plactic monoid (semistandard tableaus with Knuth’s associative multiplication) and full-domain hashing (SHAKE). Monico found an attack which likely makes plactic signatures insecure.

Note: This version title and abstract are change to notify readers that C. Monico found an attack that likely breaks (all possible versions) plactic signatures.

Metadata

Available format(s): PDF
Category: Public-key cryptography
Publication info: Preprint.
Keywords: digital signature combinatorics plactic monoid semistandard tableau
Contact author(s): danibrown @ blackberry com
History: 2022-11-21: last of 11 revisions; 2021-07-13: received; See all versions
Short URL: https://ia.cr/2021/938
License: CC BY

BibTeX

@misc{cryptoeprint:2021/938,
      author = {Daniel R.  L.  Brown},
      title = {Plactic signatures (insecure?)},
      howpublished = {Cryptology {ePrint} Archive, Paper 2021/938},
      year = {2021},
      url = {https://eprint.iacr.org/2021/938}
}