Document Details

Document Type : Thesis 
Document Title :
OPTIMISTIC ACCESS CONTROL FOR COLLABORATIVE EDITORS IN THE CLOUD
نظام التحكم في الوصول المتفائل للتطبيقات التحريرية التفاعلية عبر الحوسبة السحابية
 
Subject : Faculty of Computing and Information Technology 
Document Language : Arabic 
Abstract : Cloud based collaborative editors play an important role in many fields and communities since they allow users to communicate and collaborate to edit shared content using their mobile devices. Mobile devices are usually cloned in the cloud to minimize computation cost and energy consumption. Moreover, mobile and cloud interactions lead to online and offline switching in easy and continuous ways. Nevertheless, the main concern of collaborative editing research is to maintain the consistency of shared documents leaving the security of the shared copies out of scope. Thus, appropriate access control models are needed to preserve the features of collaborative editors when combining mobile and cloud environments. In this research, we present a study on existing clone-based collaborative editors and the current state of the art of the appropriate access control models. This study has raised a series of existing shortcomings in the security of the clone-based collaborative editors that have enabled us to conceive OptimAC, an optimistic access control model for deploying securely mobile collaboration in clone-Based collaborative editors with two policy designs on mobile side: the regular and meta policy. We implemented OptimAC and conducted some experiments to examine its effect on mobile’s storage space and processing time. The results showed that our novel meta policy design provides better performance efficiency on mobiles’ resources than the regular design. The processing time required for deducing access rights of the meta policy is less than 10 milliseconds and requires only 1extra byte per shared object to attach access rights. 
Supervisor : Dr. Asma Cherif 
Thesis Type : Master Thesis 
Publishing Year : 1442 AH
2020 AD 
Added Date : Friday, May 21, 2021 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
ألفه فهد أبوسالمAbousalem, Olfa FahdResearcherMaster 

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 46996.pdf pdf 

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