期刊名称：International Journal of Engineering and Computer Science
印刷版ISSN：2319-7242
出版年度：2015
卷号：4
期号：7
页码：13615-13617
出版社：IJECS
摘要：Publish/Subscribe (pub/sub) system is an emerging communication paradigm that offers efficient and decoupled informationdissemination in distributed environments. Decoupling increases the privacy of each participants in the system . Publishers generate the flowof information as publications of interests expressed as subscriptions. The perfect decoupling is maintained by using the pairing basedcryptographic mechanisms. The provisioning of basic security mechanisms such as authentication, confidentiality, access control are highlychallenging in a content based publish/subscribe system. This work proposes a novel approach to provide confidentiality , authenticationand access control in a brokerless content based publish/subscribe system using Hierarchical CP -ABE (Ciphertext Policy Attribute BasedEncryption) scheme. So the new Publish/Subscribe system is very efficient with less computational time for cryptographic operations andalso provide fine grained access control hierarchically.
