• Journal of the Korea Convergence Society
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• v.8 no.10
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• pp.61-66
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• 2017

Recently, IoT technology is rapidly developing with the keyword "Anytime, Anywhere, Convenient". In addition, security problems in IoT systems are exploding and the damage is increasing as well. In this paper, we propose a method to develop IoT system safely by using internationally recognized CC evaluation in ICT by identifying the standardization and security technology development status defining IoT system security requirements. For this purpose, IoT system and service security aspects are analyzed. Based on this, it is possible to design the security functional requirements and to demonstrate the rationale of the security objective through the correspondence relation, and it is possible to design the protection profile for the IoT system. This is a sufficient basis for the development methodology to be presented in this paper because it is used as a means of referring to the set of security requirements of administrators, developers, and users.

• Journal of Convergence for Information Technology
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• v.10 no.11
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• pp.23-29
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• 2020

As IoT devices increase exponentially, minimizing MIMO interference and increasing transmission capacity for sending and receiving IoT information through multiple antennas remain the biggest issues. In this paper, secret key-level distribution mechanism using deep learning is proposed to minimize MIMO-based IoT communication noise. The proposed mechanism minimizes resource loss during transmission and reception process by dispersing IoT information sent and received through multiple antennas in batches using deep learning. In addition, the proposed mechanism applied a multidimensional key distribution processing process to maximize capacity through multiple antenna multiple stream transmission at base stations without direct interference between the APs. In addition, the proposed mechanism synchronizes IoT information by deep learning the frequency of use of secret keys according to the number of IoT information by applying the method of distributing secret keys in dimension according to the number of frequency channels of IoT information in order to make the most of the multiple antenna technology.

• Proceedings of the Korea Information Processing Society Conference
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• 2016.04a
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• pp.297-299
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• 2016

기술의 발달과 융합으로 사물인터넷(Internet of Things; IoT)의 시대가 열렸다. 빅 데이터와 센서의 발달로 인해 정보는 전과 달리 더욱 사용자와 밀접해졌고 다양해졌으며 양 또한 많아졌다. 이와 더불어 IoT 환경은 다양한 기술들이 융합된 구조로 기존 기술들이 가지고 있는 보안 취약점뿐만 아니라 보다 복잡한 보안 문제점들이 발생할 수 있다. 본 논문에서는 IoT 환경에서 서비스나 IoT 기기들이 갖춰야할 보안 요구사항들을 확장성(scalability), 상호운용성(interoperability), 최소 자원 필요성(minimum resource necessity)으로 분류 하고 정의하였으며, IoT 서비스를 제공하기 위해 사용하는 대표적 프로토콜인 MQTT(Message Queue Telemetry Transfer)와 CoAP(Constrained Application Protocol)에 초점을 맞춰 각각의 표준 문서에서 권고하고 있는 보안 기술에 대해 살펴본다. 또한 그런 기술들에 있어서 발생 가능한 보안 취약점들을 분석하고 이를 해결하기 위한 방법을 제시한다.

• Asia-pacific Journal of Multimedia Services Convergent with Art, Humanities, and Sociology
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• v.8 no.10
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• pp.71-79
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• 2018

The Internet of Things is a technology that makes it possible for objects made up of hardware and software to exchange information with one another via the Internet, thereby facilitating the servitization of the objects. An IoT service, which is composed of an IoT device and a web service, has recently been applied to the marketing field and is being used as a means to meet customer needs. However, applying appropriate marketing elements to IoT services is not easy. Therefore, analysis tools are needed to properly apply marketing elements to IoT services. This study aims to construct an analysis model for marketing evaluation of IoT services. In this study, the technical elements and marketing elements of IoT were derived through a literature review, and the analysis model for marketing evaluation of IoT services was established by exploring the relationship between the elements based on a service blueprint. We also applied real cases to verify the analytical model. This study is expected to contribute to the development of tools for evaluating IoT services.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2014.11a
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• pp.45-48
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• 2014

최근 국내외에서 모든 사물이 인터넷에 연결되는 초(超)연결혁명이 진행 중이며, 앞으로 사물인터넷 기반의 다양한 혁신과 사업기회가 창출될 것으로 전망되고 있다. 하지만 국내의 경우 세계 최고 수준의 광대역 방송통신 인프라 및 IoT 기기 제조역량 등을 갖추고 있으나, 표준 기반의 개방형 IoT 플랫폼의 부재로 국내 기업의 시장 진입이 어려운 상황이다. 대기업은 개별적으로 플랫폼을 개발중이나 글로벌 시장에 대한 주도력이 부족하고, 중소기업은 플랫폼 부재로 시장진입이 어려워 향후 스마트 폰 산업에 이어 IoT 산업마저 글로벌 기업에 종속될 우려가 있다. 이에 본 논문에서는 국내외 다양한 분야의 기업들이 참여하여 다양한 홈 IoT 제품과 서비스를 개발할 수 있도록 특정 플랫폼이나 솔루션에 제약 없이 다양한 IoT 기기를 연결, 제어가 가능한 표준 기반의 개방형 홈 IoT 서비스 제공 방안을 연구하였다. 실험 결과에서는 제안된 개방형 홈 IoT 플랫폼을 통해 Z-Wave, IP, ZigBee, IrDA 등 다양한 통신 방식을 사용하는 홈 IoT 기기를 제어하고 정보 수집하여 사용이 가능함을 보여주었고, 이를 기반으로 플랫폼을 빅데이터 기술 및 기계학습 기능을 추가적으로 고도화하면 다양한 사물로부터 수집된 정보와 방송 정보, 웹 정보 등을 융합한 서비스 제공 등 소비자 중심의 창의적인 신규 방송통신 융합서비스 제공이 가능할 것으로 기대가 된다.

• Journal of the Korea Convergence Society
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• v.8 no.12
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• pp.71-76
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• 2017

It is necessary to develop a service that meets various environmental requirements so that the Internet of things can be applied to the fourth industry in overall. This paper presents a method for extracting IoT devices information to change the current provider centric service provision environment in order to construct a user centered service provision environment for Web services. Also, it provides users to utilize the appropriate web services through taking advantage of IoT devices information. The existing service provision environment is focused on the method of selecting the service using the provider service information, thus, it is considered necessary for a user-oriented service search method to be in need. In this study, the service list is provided to the user by combining provider information and information extracted from IoT Devices. IoT information collection generates information by separating context information such as information between IoT devices and users and event information between devices through identifiers. In this paper, we propose a development of a user centric service environment by presenting users with a necessary service list through the proposed IoT information.

• Asia-pacific Journal of Multimedia Services Convergent with Art, Humanities, and Sociology
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• v.7 no.4
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• pp.623-630
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• 2017

This paper surveys the state-of-the-art in korean commercial Internet of Things(IoT) services for deriving the core elements of a curriculum for major courses of IoT using RaspberryPi3. First, we survey the state-of-the-art of IoT researches and commercial services in three korean major telecommunication corporations such as Korean Telecommunications (KT), LGU+ Telecommunication (LGT), and SK Telecommunication(SKT). Second, we consider the components and advantages of the RaspberryPi3 which is popular as a representative educational tool. Concludingly, this paper derives the core elements of curriculum for major courses of IoT using RaspberryPi3 from above both processes. The corresponding elements consist of platforms, hardwares, softwares, and big-data network. Based on the important design elements of the IoT curriculum using Raspberry Pie 3, we taught embedded system course to junior students for one semester. It was successfully completed and more than 90% students were satisfied with its contents and amounts.

• Proceedings of the Korea Information Processing Society Conference
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• 2024.05a
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• pp.183-186
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• 2024

IoT(Internet of Things) 기기가 다양한 산업 분야에 활용되면서, 보안과 유지 보수를 위한 관리의 중요성이 커지고 있다. 편리한 IoT 기기 관리를 위해 무선 네트워크를 통한 펌웨어 업데이트 기술인 FOTA(Firmware Over The Air)가 적용되어 있지만, 컴퓨팅 파워가 제한된 경량 IoT 기기 특성상 취약점 탐지를 수행하기 어렵다. 본 연구에서는 IoT 기기들이 퍼징 테스트 케이스를 분할하여 협력적으로 퍼징하고, 노드 간의 퍼징 결과가 다르면 재검증을 수행하는 협력적 퍼징 기법을 제안한다. 실험 결과에 따르면, 중복되는 테스트 케이스를 2 개나 3 개 퍼징하는 협력적 퍼징 기법은 종래 방식 대비 연산량을 최소 약 16%, 최대 약 48% 줄였다. 또한, 종래 퍼징 기법 대비 취약점 탐지 성공률(Success rate of vulnerability detection)을 최소 약 3 배, 최대 약 3.4 배 개선시켰다.

• Journal of the Korea Convergence Society
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• v.6 no.2
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• pp.65-70
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• 2015

As the new technologies like IoT and Fintech appear which have not existed before, security threat ranges in existing system are increasing. Especially, IoT has increasing ranges to cause malicious behaviors in specific systems because related IT infrastructure ranges are increasing. Fintech also requires the innovation of traditional security system because it has new structure which didn't exist in the past. As IoT and Fintech technologies are commercialized and related markets are developing in the future, structural security threats could be connected to actual attacks and secondary attacks by the attackers' imbedding of back door in IoT internet devices through remote access. Customer's device cannot be compulsively controlled for security in new system where these various security threats exist. Therefore, these services should minimize the collected information, and now is the time to politically control the utilizing methods of the collected information. In this thesis, security threats are to be suggested which could occur in newly appearing mobile services like IoT and Fintech.

• Information and Communications Magazine
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• v.31 no.12
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• pp.10-16
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• 2014

최근, 헬스케어 산업은 정부뿐만 아니라 민간 업체에서 조차 핵심 이슈가 되고 있으며, 사물인터넷(IoT: Internet of Thins)과의 융합이 새롭게 부각되고 있다. IoT가 사용자에게는 헬스케어 접근성을 높이고, 사업자에게는 서비스 비용을 현격하게 감소시킬 수 있을 것이라고 기대하고 있기 때문이다. 이 기대는 헬스 데이터의 효과적인 수집, 분석, 전송 등에 대한 새로운 기술의 개발로 점점 현실화 되고 있다. 본고에서는 헬스케어와 IoT 융합에 대한 기술, 응용/서비스, 시장 및 향후 전망 등에 대해 살펴본다.