The Distinguishing Attack on HFE

Joshua Deaton; Jintai Ding

Paper 2021/050

The Distinguishing Attack on HFE

Joshua Deaton and Jintai Ding

Abstract

Often times, the ability to distinguish between random data and a public key can leads to an attack against the cryptosystem itself. In this paper, we will show experimentally a very efficient distinguisher based on the distribution of ranks of the symmetric matrices associated with the central map in the multivariate cryptosystem HFE when the degree D of the central map is very small.

Metadata

Available format(s): PDF
Category: Public-key cryptography
Publication info: Preprint. MINOR revision.
Keywords: HFE Distinguish Cryptography Experimental
Contact author(s): jdeaton1995 @ gmail com
History: 2021-01-18: received
Short URL: https://ia.cr/2021/050
License: CC BY

BibTeX

@misc{cryptoeprint:2021/050,
      author = {Joshua Deaton and Jintai Ding},
      title = {The Distinguishing Attack on {HFE}},
      howpublished = {Cryptology {ePrint} Archive, Paper 2021/050},
      year = {2021},
      url = {https://eprint.iacr.org/2021/050}
}