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An Architecture for Securing a Private Instant Messenger
Mohd Kamir Yusof,Ahmad Faisal Amri Abidin,Mat Atar Mat Amin 한국산학기술학회 2012 SmartCR Vol.2 No.1
An instant messenger is an application that allows communication in a secure manner. A secured private instant messenger is needed to ensure secure data transmission between the sender and recipient. This paper presents secure instant messenger architecture. It is divided into four modules: a chat module, transceiver module, secure module, and routing module. In this paper, a hash algorithm was applied to the secure module. The main function of the hash algorithm is to encrypt and convert the data into a hash value. The purpose of this encryption is to ensure that unauthorized persons cannot view the original data or information through the network. The instant messenger application was developed and tested, and the results indicate that this architecture and hash algorithm can improve data security for instant messenger applications.
Modelling Virtual Heritage Environments Using Hierarchy-Embedded Virtual Objects
Wan Mohd Rizhan Wan Idris,Mat Atar Mat Amin,Mohd Sufian Mat Deris,Yazid Mohd Saman 보안공학연구지원센터 2015 International Journal of Multimedia and Ubiquitous Vol.10 No.4
Nowadays, heritage is eventually inexistence, inaccessible and design decision due to the constructions of new buildings and sites. Various techniques in virtual reality have been proposed in producing virtual heritage. Improper management of virtual heritages in their virtual environments in terms of location and link may cause delivering information unsystematically. This paper is purposed to model virtual heritage environments for one case study of sheltered pavilion using Hierarchy-Embedded Virtual Objects technique. This technique is a hierarchical, tree-structured approach that emulates a tree structure with a set of linked nodes. Three different virtual heritage environments have been published through the tree structure in HEVO Editor. Organizing Editor has enables virtual heritages to be managed in terms of location and link. The resulted virtual heritage environments can be visualized, interacted and navigated through Viewing Editor. These virtual heritage environments are believed to be significant for learning the VH and presenting the values inculcated inside them. Challenges of the modelling technique, research quantification, modelling goals and VH attractions also have been discussed for advanced consideration to model VH.