Structured Signature Scheme for Efficient Dissemination of Tree Structured Data

The web is becoming the main information dissemination means for many organizations. Web documents may have a nested or hierarchical, inter-linked structure. XML is hierarchical organization of data. It requires different confidentiality and integrity for different portions of same document. Data that a consumer is not authorized to access but belongs to complete data set is extraneous data. Flow of extraneous data to a consumer may leak information, even when data is encrypted. Therefore, data sharing among multiple parties require selective and secure dissemination data without any leakage of information. This paper proposes an approach for to solve the problem of different data representation secure and making the data available in efficient manner using structural properties of hierarchical data model and multicast topology. The multicast topology is built dynamically and asynchronously using Publish - Subscribe System.