Paper 2018/1219
Cryptanalysis of the Full DES and the Full 3DES Using a New Linear Property
Tomer Ashur and Raluca Posteuca
Abstract
In this paper we extend the work presented by Ashur and Posteuca in BalkanCryptSec 2018, by designing 0-correlation key-dependent linear trails covering more than one round of DES. First, we design a 2-round 0-correlation key-dependent linear trail which we then connect to Matsui's original trail in order to obtain a linear approximation covering the full DES and 3DES. We show how this approximation can be used for a key recovery attack against both ciphers. To the best of our knowledge, this paper is the first to use this kind of property to attack a symmetric-key algorithm, and our linear attack against 3DES is the first statistical attack against this cipher.
Metadata
- Available format(s)
-
PDF
- Category
- Secret-key cryptography
- Publication info
- Preprint. MINOR revision.
- Keywords
- linear cryptanalysisDES3DESpoisonous hull
- Contact author(s)
- raluca posteuca @ esat kuleuven be
- History
- 2018-12-30: received
- Short URL
- https://ia.cr/2018/1219
- License
-
CC BY
BibTeX
@misc{cryptoeprint:2018/1219,
author = {Tomer Ashur and Raluca Posteuca},
title = {Cryptanalysis of the Full {DES} and the Full {3DES} Using a New Linear Property},
howpublished = {Cryptology {ePrint} Archive, Paper 2018/1219},
year = {2018},
url = {https://eprint.iacr.org/2018/1219}
}
