Zorro Sacro

Cryptanalysis of Zorro

At CHES 2013 was presented a new block cipher called Zorro. Although it uses only 4 S-boxes per round, the designers showed the resistance of the cipher against various attacks, and concluded the cipher has a large security margin. In this paper, we give a key recovery attack on the full cipher in the single-key model that works for 2 out of 2 keys. Our analysis is based precisely on the fact t...

A Sacro-Coccygeal Cyst

Vissage sacro-iliaque percutané

Nous rapportons le cas d'un patient âgé de 21 ans, victime d'une chute en moto. Le bilan radiologique objective une disjonction symphyse pubienne, une disjonction sacro iliaque gauche avec uneascension ouverture de l'hémi-bassingauche (A et B). Le patient a bénéficié au début de l'intervention d'une réduction de l'ascension de la sacro-iliaque par traction sur le membre puis ostéosynthèse premi...

Generating Specials: The Zorro Algorithm

The concept of a configuration graph associated to a primitive, aperiodic substitution is introduced in [1] as a convenient graphical representation of the infinite indeterminism of the shift space of the substitution. The main result of [1] is an algorithm to calculate this graph from the substitution, in this paper we turn the tables and produce substitutions from graphs. We do this using the...

Sacro-iliitis in Reiter's disease.