Algebraic analysis of LEX
|
Accepted Version
(PDF 225kB)
Zaba-et-al-Algebraic-LEX.pdf. |
Description
LEX is a stream cipher that progressed to Phase 3 of the eSTREAM stream cipher project. In this paper, we show that the security of LEX against algebraic attacks relies on a small equation system not being solvable faster than exhaustive search. We use the byte leakage in LEX to construct a system of 21 equa- tions in 17 variables. This is very close to the require- ment for an efficient attack, i.e. a system containing 16 variables. The system requires only 36 bytes of keystream, which is very low.
Impact and interest:
Citation counts are sourced monthly from Scopus and Web of Science® citation databases.
These databases contain citations from different subsets of available publications and different time periods and thus the citation count from each is usually different. Some works are not in either database and no count is displayed. Scopus includes citations from articles published in 1996 onwards, and Web of Science® generally from 1980 onwards.
Citations counts from the Google Scholar™ indexing service can be viewed at the linked Google Scholar™ search.
Full-text downloads:
Full-text downloads displays the total number of times this work’s files (e.g., a PDF) have been downloaded from QUT ePrints as well as the number of downloads in the previous 365 days. The count includes downloads for all files if a work has more than one.
| ID Code: | 27517 | ||||||
|---|---|---|---|---|---|---|---|
| Item Type: | Chapter in Book, Report or Conference volume (Conference contribution) | ||||||
| ORCID iD: |
|
||||||
| Measurements or Duration: | 13 pages | ||||||
| Keywords: | Advanced Encryption Standard, LEX, Stream Cipher | ||||||
| ISBN: | 978-1-920682-79-8 | ||||||
| Pure ID: | 31872567 | ||||||
| Divisions: | Past > QUT Faculties & Divisions > Faculty of Science and Technology Past > Institutes > Information Security Institute Past > QUT Faculties & Divisions > Science & Engineering Faculty Current > Research Centres > Australian Research Centre for Aerospace Automation |
||||||
| Copyright Owner: | Consult author(s) regarding copyright matters | ||||||
| Copyright Statement: | This work is covered by copyright. Unless the document is being made available under a Creative Commons Licence, you must assume that re-use is limited to personal use and that permission from the copyright owner must be obtained for all other uses. If the document is available under a Creative Commons License (or other specified license) then refer to the Licence for details of permitted re-use. It is a condition of access that users recognise and abide by the legal requirements associated with these rights. If you believe that this work infringes copyright please provide details by email to qut.copyright@qut.edu.au | ||||||
| Deposited On: | 24 Sep 2009 05:30 | ||||||
| Last Modified: | 03 Mar 2024 09:43 |
Export: EndNote | Dublin Core | BibTeX
Repository Staff Only: item control page
CORE (COnnecting REpositories)
CORE (COnnecting REpositories)