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BY-NC-ND 3.0 license Open Access Published by De Gruyter May 10, 2016

New lattice attacks on DSA schemes

  • Dimitrios Poulakis EMAIL logo


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.


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Received: 2014-7-23
Accepted: 2016-4-21
Published Online: 2016-5-10
Published in Print: 2016-6-1

© 2016 by De Gruyter

This article is distributed under the terms of the Creative Commons Attribution Non-Commercial License, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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