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Sécurisation de communication de groupes dynamiques

Abstract : An effective commercial multicast deployments of ASM (Any Source Multicast) and SSM (Source-Specific Multicast) should involve some security services such as confidentiality, integrity, authentication and access control. Having in mind the idea of ensuring these services, we have proposed two secuirty architectures Baal and S-SSM for ASM and SSM respectively. Baal : Securing Dynamic Group Communications. Baal is a scalable solution for the management of dynamic group keys. It allows a Global Controller, GC, to configure and manage a secured group on Internet. A single group key is used at any time to encrypt the group traffic. The group security management is ensured by using entities partially delegated to the management of the group key at the level of the domains where there are group members. S-SSM : A Secure SSM Architecture. S-SSM is composed of two security mechanisms: the access control and content protection. The access control mechanism is an extension of a solution proposed in Baal which uses a signed token to control access to group communication. The aim of such solution is to authenticate members by their local routers and to protect membership demands against attacks. As for the second one, it is achieved via sender authentication and data ciphering. This last one requires the management of a unique key, called the channel key, k_ch, shared among the sender and subscribers. This scheme is a variant of Baal.
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Submitted on : Thursday, March 29, 2018 - 10:43:04 AM
Last modification on : Saturday, October 16, 2021 - 11:26:08 AM

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  • HAL Id : tel-01746708, version 1



Ghassan Chaddoud. Sécurisation de communication de groupes dynamiques. Autre [cs.OH]. Université Henri Poincaré - Nancy 1, 2002. Français. ⟨NNT : 2002NAN10046⟩. ⟨tel-01746708⟩



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