Skip to Main content Skip to Navigation
Conference papers

Differential attacks on generalized Feistel schemes

Abstract : While generic attacks on classical Feistel schemes and unbalanced Feistel schemes have been studied a lot, generic attacks on several generalized Feistel schemes like type-1, type-2 and type-3 and alternating Feistel schemes, as defined in [8], have not been systematically investigated. These generalized Feistel schemes are used in well known block cipher networks that use generalized Feistel schemes CAST-256 (type-1), RC-6 (type-2), MARS (type-3) and BEAR/LION (alternating). Also, type-1 and type-2 Feistel schemes are respectively used in the construction of the hash functions Lesamnta and SHAvite - 3512.In this paper, we give our best Known Plaintext Attacks and non-adaptive Chosen Plaintext Attacks on these schemes. We determine the maximal number of rounds that we can attack when we want to distinguish a permutation produced by the scheme from a permutation chosen randomly in the set of permutations. © Springer International Publishing 2013.
Document type :
Conference papers
Complete list of metadata

https://hal.uvsq.fr/hal-02177223
Contributor : Équipe Hal Uvsq Connect in order to contact the contributor
Submitted on : Monday, July 8, 2019 - 5:12:25 PM
Last modification on : Friday, October 22, 2021 - 4:41:19 AM

Links full text

Identifiers

Collections

`

Citation

Valérie Nachef, Emmanuel Volte, Jacques Patarin. Differential attacks on generalized Feistel schemes. 12th International Conference on Cryptology and Network Security, CANS 2013, Nov 2013, Paraty, Brazil. pp.1-19, ⟨10.1007/978-3-319-02937-5_1⟩. ⟨hal-02177223⟩

Share

Metrics

Record views

88