• Proceedings of the Korea Contents Association Conference
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• 2006.11a
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• pp.287-291
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• 2006

E-learning has increased on importance as people realize that the use of technology can improve the teaming process. Consequently, new learning environments have been developed. However, in general they are oriented to address a specific e-learning functionality. Therefore, in most of the cases, they are not developed to interoperate with other e-learning tools, which makes the creation of a fully functional e-learning environment more difficult. We analyses of total information security infrastructure of school affairs information system for secure ubiquitous campus.

• Journal of Korea Society of Industrial Information Systems
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• v.12 no.2
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• pp.24-29
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• 2007

The essential factor of ubiquitous is security technology to properly prepare making possible network access, economic and convenient information exchange. This paper proposes an authentication protocol for RFID as one technology to realize such an ubiquitous. The proposed protocol used only the EXOR and the hash function operations reduces operations at RFID tag, which improves stability compared to existing protocols.

• Proceedings of the Korea Multimedia Society Conference
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• 2012.05a
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• pp.81-82
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• 2012

Wireless Mesh Network (WMN) functionality had been included into IEEE 802.11s. For WMN, the routing message is one of the most important parts that need to be protected. Hybrid Wireless Mesh Protocol (HWMP) is the default routing protocol for WMN. In this paper, the attacks and vulnerabilities of HWMP had been identified and the requirements needed to protect HWMP had also been discussed. Existing HWMP security had been compared with the requirements.

• Convergence Security Journal
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• v.5 no.3
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• pp.9-14
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• 2005

In this treatise when, proposed to supplement studying contents relationship conversion service and cooperation studying service function to LMS that analyze existing e-learning model's limitation for ubiquitous environment e-learning model that can study regardless of, ubiquitously, some contents and do based on SCORM ubiquitous-network and next generation sensor technology etc.

• Proceedings of the Korea Information Processing Society Conference
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• 2015.04a
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• pp.482-484
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• 2015

M2M technology enables us to "Things" and collect various kinds of information from "Things". M2M is defined as a technology that enables electronic and mechanical devices to communicate with each other seamlessly and perform actions without human intervention. In this paper, we review some security solutions for M2M devices and show our light weight framework which is responsible for security of constrained M2M devices. In addition to the above-mentioned ones, we propose the framework can be applied for constrained environment and give conclusion and future works.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2008.10a
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• pp.261-264
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• 2008

IPv6 has been proposed and deployed to cater the shortage of IPv4 addresses. It is expected to foresee mobile phones, pocket PCs, home devices and any other kind of network capable devices to be connected to the Internet with the introduction and deployment of IPv6. This scenario will bring in more challenges to the existing network infrastructure especially in the network security area. Firewalls are the simplest and the most basic form of protection to ensure network security. Nowadays, firewalls' usage has been extended from not only to protect the whole network but also appear as software firewalls to protect each network devices. IPv6 and IPv4 are not interoperable as there are separate networking stacks for each protocol. Therefore, the existing states of the art in firewalling need to be reengineered. In our context here, we pay attention only to the IPv6 firewalls configuration anomalies without considering other factors. Pre-evaluation of security risk is important in any organization especially a large scale network deployment where an add on rules to the firewall may affect the up and running network. We proposed a new probabilistic based model to evaluate the security risks based on examining the existing firewall rules. Hence, the network administrators can pre-evaluate the possible risk incurred in their current network security implementation in the IPv6 network. The outcome from our proposed pre-evaluation model will be the possibilities in percentage that the IPv6 firewall is configured wrongly or insecurely where known attacks such as DoS attack, Probation attack, Renumbering attack and etc can be launched easily. Besides that, we suggest and recommend few important rules set that should be included in configuring IPv6 firewall rules.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.12 no.2
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• pp.269-275
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• 2008

The rapid growth of ubiquitous technology has increased the demand of storage capacity in mobile computing. iSCSI(Internet Small Computer Interface), a virtual storage protocol would be one of the possible solutions to resolve this problem. However, the insecure nature of this protocol makes it vulnerable to malicious attacks. In this paper, we aims to design and propose a new secure lightweight iSCSI-based virtual storage scheme for mobile devices. Suitable security mechanisms are considered in the design of our proposed solution in order to overcome existing security problems in iSCSI. Relevant experiments are tarried out and the results revealed that the efficiency of proposed algorithm in which it introduces over 100% Read/Write performance improvement compared with the IPsec approach.

• Journal of the Korean Society for Geothermal and Hydrothermal Energy
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• v.10 no.4
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• pp.8-14
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• 2014

With the advancement of the industry such as information technology, residential facilities has been consistently achieved high standard. Ubiquitous system has been introduced in apartments nowadays, and it will be general facilities in the near future. However elderly people is not generally accustomed to ubiquitous or internet environment, so degree of ubiquitous system usage is able to be less than young people. This study aims to grasp the relative importance of ubiquitous environment, and offer materials to realize residential environment's improvement of silver towns under investigation through a questionnaire survey. Skin recognition system was most preferred among various functions. Energy management system, protection system of solitude elderly person and security system by CCTV was also preferred at a high rate. Housework part such as cooking aid, height control of sink and basin etc., was not less important system relatively.

• Korean Journal of Computational Design and Engineering
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• v.12 no.3
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• pp.171-181
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• 2007

Ubiquitous computing is a vision of our future computing lifestyle in which computer systems seamlessly integrate into our everyday lives, providing services and information in anywhere and anytime fashion. Augmented reality (AR) can naturally complement ubiquitous computing by providing an intuitive and collaborative visualization and simulation interface to a three-dimensional information space embedded within physical reality. This paper presents a service framework and its applications for providing context-aware u-car maintenance services using augmented reality, which can support a rich set of ubiquitous services and collaboration. It realizes bi-augmentation between physical and virtual spaces using augmented reality. It also offers a context processing module to acquire, interpret and disseminate context information. In particular, the context processing module considers user's preferences and security profile for providing private and customer-oriented services. The prototype system has been implemented to support 3D animation, TTS (Text-to-Speech), augmented manual, annotation, and pre- and post-augmentation services in ubiquitous car service environments.

• Proceedings of the Korean Information Science Society Conference
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• 2005.11a
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• pp.196-198
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• 2005

The vision of ubiquitous computing is becoming a reality now .Service discovery in ubiquitous environment, as well as adding semantics to the data is quite established. But, not many researchers have thought about the management of these devices. We envisage that by integrating SNMP with service discovery protocols, we could leverage the use of management factors (like performance, fault and security management etc) in the business, organizations, and other multi-user environments.