S-Boxes are important security components of block ciphers. We provide theoretical results on necessary or sufficient criteria for an (invertible) 4-bit S-Box to be weakly APN. Thanks to a classification of 4-bit invertible S-Boxes achieved independently by De Cannière and Leander–Poschmann, we can strengthen our results with a computer-aided proof. We also propose a class of 4-bit S-Boxes which are very strong from a security point of view.
On weakly APN functions and 4-bit S-Boxes / Fontanari, Claudio; V., Pulice; Rimoldi, Anna; Sala, Massimiliano. - In: FINITE FIELDS AND THEIR APPLICATIONS. - ISSN 1071-5797. - STAMPA. - 18:3(2012), pp. 522-528.
Titolo: | On weakly APN functions and 4-bit S-Boxes |
Autori: | Fontanari, Claudio; V., Pulice; Rimoldi, Anna; Sala, Massimiliano |
Autori Unitn: | |
Titolo del periodico: | FINITE FIELDS AND THEIR APPLICATIONS |
Anno di pubblicazione: | 2012 |
Numero e parte del fascicolo: | 3 |
Codice identificativo Scopus: | 2-s2.0-84858080595 |
Codice identificativo ISI: | WOS:000301807900003 |
Digital Object Identifier (DOI): | http://dx.doi.org/10.1016/j.ffa.2011.11.003 |
Handle: | http://hdl.handle.net/11572/89105 |
Citazione: | On weakly APN functions and 4-bit S-Boxes / Fontanari, Claudio; V., Pulice; Rimoldi, Anna; Sala, Massimiliano. - In: FINITE FIELDS AND THEIR APPLICATIONS. - ISSN 1071-5797. - STAMPA. - 18:3(2012), pp. 522-528. |
Appare nelle tipologie: | 03.1 Articolo su rivista (Journal article) |
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