Mohamed, Mohamed Saied Emam ; Bulygin, Stanislav ; Buchmann, Johannes (2011)
Improved Differential Fault Analysis of Trivium.
Darmstadt
Konferenzveröffentlichung, Bibliographie
Kurzbeschreibung (Abstract)
Combining different cryptanalytic methods to attack a cryptosystem became one of the hot topics in cryptanalysis. In particular, algebraic methods in side channel and differential fault analysis (DFA) attracted a lot of attention recently. In [13], Hojsik and Rudolf used DFA to recover the inner state of the stream cipher Trivium which leads to recovering the secret key. For this attack, they required 3.2 one-bit fault injections on average and 800 keystream bits. In this paper, we give an example of combining DFA attacks and algebraic attacks. We use algebraic methods to improve the DFA of Trivium [13]. Our improved DFA attack recovers the inner state of Trivium by using only 2 fault injections and only 420 keystream bits.
| Typ des Eintrags: | Konferenzveröffentlichung |
|---|---|
| Erschienen: | 2011 |
| Autor(en): | Mohamed, Mohamed Saied Emam ; Bulygin, Stanislav ; Buchmann, Johannes |
| Art des Eintrags: | Bibliographie |
| Titel: | Improved Differential Fault Analysis of Trivium |
| Sprache: | Englisch |
| Publikationsjahr: | Februar 2011 |
| Buchtitel: | Proceedings of COSADE 2011 |
| Veranstaltungsort: | Darmstadt |
| Kurzbeschreibung (Abstract): | Combining different cryptanalytic methods to attack a cryptosystem became one of the hot topics in cryptanalysis. In particular, algebraic methods in side channel and differential fault analysis (DFA) attracted a lot of attention recently. In [13], Hojsik and Rudolf used DFA to recover the inner state of the stream cipher Trivium which leads to recovering the secret key. For this attack, they required 3.2 one-bit fault injections on average and 800 keystream bits. In this paper, we give an example of combining DFA attacks and algebraic attacks. We use algebraic methods to improve the DFA of Trivium [13]. Our improved DFA attack recovers the inner state of Trivium by using only 2 fault injections and only 420 keystream bits. |
| Freie Schlagworte: | Secure Data |
| ID-Nummer: | TUD-CS-2011-0087 |
| Fachbereich(e)/-gebiet(e): | LOEWE > LOEWE-Zentren > CASED – Center for Advanced Security Research Darmstadt 20 Fachbereich Informatik > Theoretische Informatik - Kryptographie und Computeralgebra LOEWE > LOEWE-Zentren 20 Fachbereich Informatik LOEWE |
| Hinterlegungsdatum: | 30 Dez 2016 20:23 |
| Letzte Änderung: | 17 Mai 2018 13:02 |
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