A Lightweight, Reliable, Secure, Paginated, Disconnected, and Distributed Message Transaction Model for Wireless Mobile Environment.

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Department Of Computer Science ,Farook College

Abstract

LXML is a hierarchical data format inheriting XML features like extensibility, human readability, and schema awareness. Unlike XML, it uses level numbers in- stead of user-defined tags. This new format improves performance in verbosity, content density, parsing, serialization, deserialization, marshalling, unmarshalling, and transmission. LXML reduces message size by 40 - 48% compared to XML and 35 - 55% compared to JSON. Its schema is 80 - 90% smaller than XML Schema, offering substantial performance benefits over XML and JSON. The novel transaction model could be realized in a distributed environment through a three-layer architecture (client agent, middleware, and host), supports transactions in disconnected and distributed wireless mobile environments. It inte- grates the efficient LXML message format with Service Oriented Architecture (SOA) to enhance transmission efficiency. Reliability is ensured through packet acknowl- edgement, sequencing mechanisms, and a message queuing system for network un- availability. The middleware offloads resource-intensive computations to a server. Performance evaluations show the model’s superiority in upload and download times, LXML-to-web service conversions, transmission time, and content density, proving its suitability for modern wireless mobile environments. To counter rewriting attacks, a three-layer architecture safeguards message transmissions using LXML Schema. This involves adding four fields (checksum, timestamp, child count, and digital signature) and encrypting messages. Case stud- ies demonstrate the approach’s effectiveness in detecting and preventing various rewriting attacks. An evaluation and analysis for the additional processing and memory overhead needed to implement these security measures reveals that they iii Abstract incur minimal additional processing time and memory. Consequently, the proposed lightweight, reliable, secure, paginated, disconnected, and distributed transaction model not only ensures reliability but guarantees the secure transmission of mes- sages in an ever-evolving digital landscape as well. In summary, the proposed innovative three-layer transaction model significantly advances beyond traditional XML and JSON, delivering exceptional efficiency, scal- ability, and security. This evolution is set to transform data exchange practices across diverse domains, from enterprise systems to the Internet of Things, heralding a more efficient and secure digital future.

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