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This paper proposes a cryptosystem (encrypting/decryption) for XML data using RSA (Rivest, Shamir, and Adleman) with some form of shift ciphering scheme. Such a system is designed to achieve some of security aspects such as confidentiality, authentication, and integrity, and non-repudiation. We used XML data as an experimental work. The implementation is done using VB.NET. Since, we have used RSA...
In this paper, we discuss the architecture of a system, the so-called Web and Document Databases (WDDBS for short), designed to explore the Internet effectively and efficiently. Abstractly, a WDDBS can be defined as a triple <;D, P, W>, where (1) D stands for a local document database to store XML documents, (2) P for a subsystem responsible for remote query evaluation, including resolution...
Most recent document standards like XML urge Information Retrieval to design and implement systems to index, retrieve and present documents according to the given document structure. We present a Bayesian model for XML document retrieval. This model is based on Bayesian networks that enable to represent and quantify the relations between the structural components of the document and whose conditional...
XML access control is a non-trivial topic as XML language becomes a standard for data representation and transmission on the Web. Existing access control approaches to the published XML documents are not likely to scale well since they specify and enforce their access control policies in centralized servers. This paper proposed a distributed model for providing a scalable access control to the published...
Idea of distributed electronic documents was created to simplify work in remote collaborative environments. XML document, which template was created by a document originator, is converted into agent like objects and distributed over the network. Document components, carried by agents, are edited locally by system users on remote computers. After that they can be annotated by authorized users and merged...
Collaborative writing is the process of two or more people working together to create a common document. People can be distributed in time, in place and across organizations. They can share writing different kinds of documents. In this paper, we focus on collaborative writing of XML documents. XML documents must be validated via a set of constraints called DTD to be considered as consistent. In cooperative...
A language for semi-structured documents, XML has emerged as the core of the Web services architecture, and is playing crucial roles in messaging systems, databases, and document processing. However, the processing of XML documents has a reputation for poor performance, and a number of optimizations have been developed to address this performance problem from different perspectives, none of which...
A new semantic search scheme for XML data is proposed. The semantics of both XML documents and the query are enriched by domain ontology annotation. Also, the additional information provided by the structure of XML documents is considered by adding node path index, semantic keyword index and element tag index to indices. A searching algorithm is used to realize a semantic search for XML documents...
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