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14 septembre 2016
- handle: 10670/1.f1spcf
- hal: hal-01637470
- doi: 10.1007/978-3-319-45378-1_56
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info:eu-repo/semantics/altIdentifier/doi/10.1007/978-3-319-45378-1_56
http://creativecommons.org/licenses/by/ , info:eu-repo/semantics/OpenAccess
Mots-clés
User authentication Conference-key agreement Group communication Forward secrecy Fault toleranceSujets proches
Authentication--Law and legislationCiter ce document
Tomasz Hyla et al., « A Fault-Tolerant Authenticated Key-Conference Agreement Protocol with Forward Secrecy », HAL-SHS : sciences de l'information, de la communication et des bibliothèques, ID : 10.1007/978-3-319-45378-1_56
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Résumé
In conference channels, users communicate with each other using a conference key that is used to encrypt messages. There are two basic approaches in which the key can be established. In the first one, a central server is used (with a chairman role). The server generates the key and distributes it to participants. The second approach is that all participants compute a key without a chairman. In this paper, we introduce a special type of group authentication using secret sharing, which provides an efficient way to authenticate multiple users belonging to the same group without the chairman. Our proposed protocol is a many-to-many type of authentication. Unlike most user authentication protocols that authenticate a single user each time, our proposed protocol authenticates all users of a group at once.