| HAL : hal-00005317, version 1 |
| arXiv : math/0506180 |
| Fiche détaillée | Récupérer au format |
|
|
| Algebraic Methods in Cryptography 418 (2006) 103-119 |
|
|
|
|
| Constructions in public-key cryptography over matrix groups |
|
|
| Dima Grigoriev 1Ilia Ponomarenko 2 |
|
|
| (2006) |
|
|
| The purpose of the paper is to give new key agreement protocols (a multi-party extension of the protocol due to Anshel-Anshel-Goldfeld and a generalization of the Diffie-Hellman protocol from abelian to solvable groups) and a new homomorphic public-key cryptosystem. They rely on difficulty of the conjugacy and membership problems for subgroups of a given group. To support these and other known cryptographic schemes we present a general technique to produce a family of instances being matrix groups (over finite commutative rings) which play a role for these schemes similar to the groups $Z_n^*$ in the existing cryptographic constructions like RSA or discrete logarithm. |
|
|
|
|
|
|
|
|
|
|
| 1 : | Institut de Recherche Mathématique de Rennes (IRMAR) |
| CNRS : UMR6625 – Université de Rennes 1 – École normale supérieure de Cachan - ENS Cachan – Institut National des Sciences Appliquées (INSA) : - RENNES – Université de Rennes II - Haute Bretagne | |
| 2 : | Institut des Mathématiques. Saint Petersburg |
| Academie des Sciences | |
|
|
|
|
|
|
|
|
| Domaine | : | Mathématiques/Théorie des groupes Informatique/Cryptographie et sécurité |
|
|
| public-key cryptosystems – matrix groups |
|
|
| Liste des fichiers attachés à ce document : | ||||||||||
|
|
|
| hal-00005317, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00005317 | |
| oai:hal.archives-ouvertes.fr:hal-00005317 | |
| Contributeur : Marie-Annick Guillemer | |
| Soumis le : Vendredi 10 Juin 2005, 14:29:07 | |
| Dernière modification le : Vendredi 19 Mars 2010, 16:51:13 | |