期刊名称：International Journal of Computer Science & Technology
印刷版ISSN：2229-4333
电子版ISSN：0976-8491
出版年度：2012
卷号：3
期号：2
页码：1098-1103
语种：English
出版社：Ayushmaan Technologies
摘要：Now a day’s Safe communications have become an important subject of research. The new service for wireless and wired networks is to provide confidentiality, authentication, authorization and data integrity. Security has always been a sensitive issue. In fact, this service becomes necessary to protect basic applications; Wireless broadcast is an effective approach for spreading data widely to a number of users. To provide safe transmission, symmetric-key-based encryption is one of the widely used method, that ensures only valid users can decrypt the data. With regard to various subscriptions, an efficient key management for distributing and changing keys is needed to control broadcast services. The main idea is to have collection members actively participate to the security of the broadcast collection, therefore reducing the communication and computation load on the source. Since the collection security is distributed among the collection members, we propose a service right certificate, to verify that a node is authorized to join the collection, and also a corresponding revocation mechanism.
