Hierarchical group access control for secure multicast communications
نویسندگان
چکیده
منابع مشابه
Distributed Hierarchical Access Control for Secure Group Communications
Hierarchical access control to ensure multiple levels of access privilege for group members is required in many environments, such as hierarchically managed organizations and multimedia applications. In this paper, to efficiently and effectively achieve this goal, we propose a distributed key management scheme whereby each SG (Service Group) maintains an SG server. This server is utilized to ma...
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Hierarchical access control is an important and traditional problem in information security. In 2001, Wu et.al. proposed an elegant solution for hierarchical access control by the secure-filter. Jeng and Wang presented an improvement of Wu et. al.’s method by the ECC cryptosystem. However, secure-filter method is insecure in dynaminc access control. Lie, Hsu and Tripathy, Paul pointed out some ...
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Multicast and anycast have received considerable attention due to their ability to support networked services. There are distinct and significant security vulnerabilities in both the multicast and anycast model including denial of service, theft of service, eavesdropping, and masquerading. The multicast problem requires a secure IGMP. The anycast problem requires secure anycast server advertise...
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Secure group communication with hierarchical access control refers to a scenario where a group of members is divided into a number of subgroups located at different privilege levels and a high-level subgroup can receive and decrypt messages within any of its descendant lower-level subgroups; but the converse is not allowed. In this paper, we propose a new scheme CRTHACS, which is based on the C...
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In reliable multicast communications, transmission rate of a sender should be restricted to the node capability of the lowest node in order to support reliable transmission of packets to all receivers in a multicast group. Even a node of high capability should receive packets at lower rate when there are lower capability nodes in a corresponding multicast group. In reliable multicast communicat...
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ژورنال
عنوان ژورنال: IEEE/ACM Transactions on Networking
سال: 2007
ISSN: 1063-6692,1558-2566
DOI: 10.1109/tnet.2007.897955