New Lattice  Attacks on DSA Schemes

Dimitrios Poulakis

Paper 2016/058

New Lattice Attacks on DSA Schemes

Dimitrios Poulakis

Abstract

We prove that a system of linear congruences of a particular form has at most a unique solution below a certain bound which can be computed efficiently. Using this result we develop attacks against the DSA schemes which, under some assumptions, can provide the secret key in the case where one or several signed messages are available.

Metadata

Available format(s): PDF
Category: Public-key cryptography
Publication info: Preprint. MINOR revision.
Keywords: DSA cryptanalysis lattice techniques
Contact author(s): poulakis @ math auth gr
History: 2016-01-25: received
Short URL: https://ia.cr/2016/058
License: CC BY

BibTeX

@misc{cryptoeprint:2016/058,
      author = {Dimitrios Poulakis},
      title = {New Lattice  Attacks on {DSA} Schemes},
      howpublished = {Cryptology {ePrint} Archive, Paper 2016/058},
      year = {2016},
      url = {https://eprint.iacr.org/2016/058}
}