• Information and Communications Magazine
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• v.33 no.12
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• pp.3-11
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• 2016

본고에서는 최근 가장 주목 받고 있는 연구 분야 중 하나인 사물인터넷(Internet of Things, IoT)을 위한 Domain Name System(DNS) 네이밍 서비스 기술동향에 대해 소개한다. IoT 환경에서 IoT 디바이스를 관리하기 위해 DNS 네임을 일일이 수동적으로 설정하는 것은 비효율적이다. 따라서 본고에서는 IoT 환경에서 수많은 IoT 디바이스의 관리를 위한 IoT 디바이스의 DNS 네임 자동설정 및 네이밍 서비스 기술에 대해 소개하고 분석한다. 본고에서 소개하는 IoT 네이밍 서비스 기술은 Internet Engineering Task Force(IETF)에서 제정된 표준 프로토콜을 이용하므로 구현이 용이하고 성능적인 면에서도 우수하다. IoT 디바이스의 DNS 네임이 사용자들에게 가독성 있으면서도 기계적으로 파싱이 용이하면 IoT 디바이스 관리를 효과적으로 수행할 수 있다. 즉 설정된 IoT 디바이스 DNS 네임으로 인터넷 사용자가 스마트폰과 태블릿과 같은 모바일 스마트 디바이스로 IoT 디바이스를 원격에서 모니터링 및 원격제어 할 수 있다. 본고에서는 IoT 디바이스에 연관된 네이밍 서비스 기술들을 비교 분석하고, 본 저자가 제안하는 IoT 디바이스 DNS 네이밍 기술을 소개하고자 한다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2016.10a
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• pp.331-332
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• 2016

In the IoT environment, The mass IoT data can be collected in a variety of IoT devices. Due to mass IoT data, the services for data processing and providing are needed that fit user requirements. So we propose the design of IoT data management system based on ontology using context information.

• Journal of Advanced Navigation Technology
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• v.20 no.6
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• pp.562-567
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• 2016

IoT is attracting attention as the development of the Internet and the spread of smart devices are rapidly increasing worldwide. As IoT is integrated into everyday life, the market is getting bigger. So, experts predict that IoT devices will grow to more than one trillion in a decade. Techniques related to IoT are also being developed steadily, and studies are underway to develop IoT in various fields. However, vendors launching IoT services do not interact with data from other platforms. Therefore, it is limited to growing into a big market by facing the obstacle called the silo phenomenon. To solve this problem, web technology attracts attention. Web technology can interact with data regardless of platform, and it can not only develop various services using the data, but also reduce unnecessary costs for developers. In this paper, we have studied a web - based open IoT system that can transmit data independently in real time to the IoT platform.

• Journal of KIISE:Software and Applications
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• v.41 no.8
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• pp.545-556
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• 2014

Internet of Things (IoT), one of the emerging research areas, is the computing paradigm where various things connect to the network and cooperate with their neighbors to reach common goals. Computing with IoT devices opens up a new array of opportunities for providing value-added smart services and applications to end users. That is, IoT devices play an important role of providing useful services to the users. However, the states of IoT devices are dynamically changed at runtime, which come from their mobility, network connectivity, and a battery drain problem. This dynamism results in difficulties in managing these IoT devices. In this paper, we propose a framework to manage those IoT devices with dynamism. Hence, we first derive issues from IoT devices' dynamism. And, we define a set of requirements to manage the IoT devices and present a framework to manage the device dynamism. The framework is equipped by a device discovery method, a device status monitoring method, a device selection and connection method, and a device replacement method. Finally, we verify the feasibility and effectiveness of the framework through experiments.

• The Journal of the Korea Contents Association
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• v.15 no.2
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• pp.40-57
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• 2015

IoT is the foundation technology that the things share the information through connected with Internet to provide service based on these information. It is applied to various fields such as personal, public and industry. Therefore, the service development is required to meet the requirement of the various service environments. The IoT service environment will be developed as the participation IoT service environment which increase the value and efficiency such as the Broadcasting and web services changed from the service provider environment to the user participation service. The user can directly reflect their requirements using the user participation IoT service environment. So, the types of IoT services will diverse and accelerate the spread of IoT service. In this paper, we derive the IoT service element through the analysis of various service scenarios, and propose the participation IoT service model and modeling mechanism. It provides the sequential service model and the relation based service model according to the service modeling proficiency of user. The proposed environment provides the web-based user interface that is implemented by the participation IoT service brokering platform.

• Journal of Digital Convergence
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• v.17 no.2
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• pp.171-176
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• 2019

In modern times, many IoT products are being used as all things and devices are connected to the Internet and IoT products become easily accessible through the network. For the convenience of users, IoT products can be remotely operated automatically without manual operation. Various research and development are underway to improve the convenience of users by using IoT products. However, since only the convenience of the users is pursued, in terms of security, there is a serious problem that exposes the user's personal information. This paper has proposed a method to apply $moir{\acute{e}}$ technology to IoT products in order to improve the performance of security, and a method to increase the safety of IoT products using user face authentication based on shadow $moir{\acute{e}}$ as a $moir{\acute{e}}$ phenomenon method, and the projection $moir{\acute{e}}$. When comparing the existing IoT products and IoT products applied with $moir{\acute{e}}$ technology, IoT products applied with $moir{\acute{e}}$ technology are safer in terms of security.

• Asia-pacific Journal of Multimedia Services Convergent with Art, Humanities, and Sociology
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• v.8 no.6
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• pp.909-917
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• 2018

Recently, the Internet of Thing (IoT) technology is expanding explosively in the number of devices and applications in many application areas. In IoT systems, sensors and actuators are connected to the Internet and cooperate to do some applications by exchanging information. In this paper an IoT smart home system is developed to monitor and control home devices easily. Our system consists of sensor devices, IoT gateways, and an IoT server. Sensor devices developed using Rfduino sense the physical world and transmit their data using BLE to the IoT server thru the IoT gateway. We implemented the IoT gateway using Raspberry Pi and the IoT server using ARTIK cloud. We installed our system and made a test in our lab, which showed that our system can be installed and managed easily and extended its functionality in an easy way. By taking advantage of the rule mechanism and action messages of ARTIK cloud, we implemented the control of device parameters easily by sending action messages to the ARTIK cloud.

• Journal of Convergence for Information Technology
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• v.8 no.6
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• pp.149-157
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• 2018

In this paper, we propose an attack detection technology using SDN Controller to study security threats in IoT environment. The research methodology has been developed by applying IoT security threat management technology to the IoT layer and analyzing the research trend of applied security technology. The study results show that the effectiveness of the detection method using the sampling method is studied by adding OpenFlow based SDN Controller to the network switch equipment of the existing IoT network. This method can detect the monitoring and attack of the whole network by interworking with IDS and IPS without affecting the performance of existing IoT devices. By applying such improved security threat countermeasure technology, we expect to be able to relieve anxiety of IoT security threat and increase service reliability.

• Review of KIISC
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• v.29 no.6
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• pp.81-88
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• 2019

IoT 기술을 이용한 다양한 제품과 서비스의 출시로 국내·외 IoT 산업의 급성장 및 초연결사회로의 진입이 가속화되고 있는 가운데, 보안에 취약한 IoT 기기를 공격 목표 및 도구로 악용하여 다양한 침해사고가 발생되고 있다. 이와 같은 상황은 IoT 기기 보급 활성화와 더불어 더욱 증가할 것으로 전망되고 있으며, 피해의 범위 및 정도에 있어서 막대한 사회적·경제적 손실을 유발하게 될 것으로 우려되고 있다. IoT 기기를 대상으로 하는 침해사고는 주로 디폴트 계정이나 추측하기 쉬운 패스워드를 사용하는 등 관리적 미흡 혹은 기기 자체의 취약점을 악용하여 발생하는 공격으로 인하여 발생되고 있다. 이에 정부 및 산업체에서는 IoT 기기의 보안 내재화, 기기 소유자의 보안인식 제고 등 IoT 기기의 보안성 강화를 위한 다양한 활동을 진행하고 있다. 하지만 IoT 기기 및 사용 환경의 특징 상 모든 IoT 기기를 안전하게 배포하여 관리하는 데에는 한계가 존재하기 때문에, 침해사고 예방 및 대응의 관점에서 공격에 노출되기 쉬운 취약한 기기를 파악하여 사전에 조치하는 노력이 필요하다. 이와 관련하여 본 논문에서는 IoT 기기 취약점을 악용하여 발생하는 공격 대응을 위해, 다양한 채널을 통해 IoT 기기 취약점 및 익스플로잇 정보를 수집하여 IoT 기기 취약점 악용 공격의 유형을 분석하고 대응의 일례를 제시함으로써 IoT 위협 탐지 및 대응 전략 수립을 위한 기초정보를 제공하고자 한다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2015.10a
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• pp.779-780
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• 2015

As IoT becomes a main technology of the age, many IoT products have developed and are being developed now. By using open-source hardware "Arduino"and open-source IoT platform "Temboo" to analize CAN signal from vehicle and make vehicle IoT environment to analize and use it through the mobile phone, figured out the way to develop the IoT environment with low cost. Also suggest the way to solve problems and improove.