• Convergence Security Journal
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• v.22 no.2
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• pp.59-66
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• 2022

Recently, smart home technology has been developed with a great response due to the convenience of home automation. Smart home technology provides various services by connecting various Internet of Things (IoT) and sensors to a home network through wired/wireless networks. In addition, the smart home service easily and conveniently controls lighting, energy, environment, and door cameras through a wall pad. However, while it has become a social issue due to the recent hacking accident of wall pads, personal information leakage and privacy infringement are expected. Accordingly, it is necessary to prepare preventive and countermeasures against security vulnerability factors of wall pads. Therefore, this study expects that it can be used as basic data for future smart home application and response technology development by examining the weak causes and countermeasures related to wall pads.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.17 no.4
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• pp.49-59
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• 2017

Smart sensing plays a key role in a variety of IoT applications, and its importance is growing more and more together with the development of artificial intelligence. Therefore the importance of smart sensors cannot be overemphasized. However, most studies related to smart sensors have been focusing on specific application purposes, for example, security, energy saving, monitoring, and there are not much effort on researches on how to efficiently configure various types of smart sensors to be needed in the future. In this paper, a component-based framework with hierarchical structure for efficient construction of smart sensor is proposed and its application to smart home is designed and implemented. The proposed method shows that various types of smart sensors to be appeared in the near future can be configured through the design and development of necessary components within the proposed software framework. In addition, since it has a layered architecture, the configuration of the smart sensor can be expanded by inserting the internal or external layers. In particular, it is possible to independently design the internal and external modules when designing an IoT application service through connection with the external device layer. A small-scale smart home system is designed and implemented using the proposed method, and a home cloud operating as an external layer, is further designed to accommodate and manage multiple smart homes. By developing and thus adding the components of each layer, it will be possible to efficiently extend the range of applications such as smart cars, smart buildings, smart factories an so on.

• Information and Communications Magazine
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• v.32 no.7
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• pp.27-33
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• 2015

오늘날 우리 사회는 정보통신기술의 발전으로 다양한 가능성들을 갖게 되었다. 그 중 다양한 사물들에 센싱 기술을 부여하고 네트워크에 연결시켜, 해당 사물들이 처리하는 데이터들을 손쉽게 활용 및 관리 하고자 하는 기술인 사물 인터넷(Internet of Things)이 활발하게 거론되고 있다. 현재 사물 인터넷은 스마트 홈, 헬스 케어 등의 형태로 우리 생활에 깊게 들어왔고, 그곳에서 개인 정보와 같은 매우 민감한 데이터를 다루기 때문에, 이러한 기기 및 데이터들에 대한 보안은 매우 중요하다. 하지만 현재의 사물 인터넷은 보안이 충분히 고려되지 않은 상태이다. 본고에서는 현재 보안 기술을 적용함에 있어서 사물 인터넷 환경이 어떠한 문제점을 가지고 있는지 알아보고, 이러한 문제점들을 해결하고 안전한 IoT 환경을 구축하기 위해 본고에서 제안하는 SDN/NFV 기술을 적용한 IoT 게이트웨이 디자인을 알아본다.

• Information and Communications Magazine
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• v.30 no.3
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• pp.22-28
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• 2013

오늘날 미래인터넷 기술의 하나로서 SDN이 클라우드 서비스, 모바일 서비스, 스마트 TV, 빅데이터 및 사물지능통신 등의 새로운 서비스를 제공할 수 있는 개방형 플랫폼으로 주목받고 있다. 본고에서는 이러한 SDN 망을 구축함에 있어서 제어 인터페이스, QoS, 멀티캐스트, 이동성 및 네트워크 보안 측면에서 고려해야 할 사항들을 살펴본다. 기존 네트워크의 근본적인 문제점으로 인해 발생한 복잡성 및 성능 저하 요인들이 SDN의 장점을 활용하여 해결될 수 있으며, 이에 본고에서 제시된 고려 사항들이 큰 역할을 할 것이다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2013.10a
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• pp.685-687
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• 2013

Today, as wireless communications devices such as laptops, smart phones are generalized, wireless LAN has been widely installed in the corporate office conference rooms, industrial warehouses, Internet-ready classrooms, and even in a coffee shop. Though a wired network can be accessed and attacked only by the physical penetration, the wireless network which can be accessed anywhere within the reach of anyone has relative vulnerability by unauthorized users' attack. To defend these vulnerabilities, the introduction of WIDS / WIPS is required. In this paper, we recognize the limitations of WLAN security technology, review the current technology trends and propose the solutions in the future security problems.

• Proceedings of the Korea Information Processing Society Conference
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• 2010.11a
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• pp.1342-1345
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• 2010

디지털 TV 기술과 소프트웨어 기술의 발전은 스마트 TV 라는 TV 의 새로운 패러다임을 도래하게 하였다. 스마트 TV 는 네트워크를 통해 애플리케이션 스토어에 접속하여 다양한 콘텐츠들을 다운로드 하여 설치/이용하게 될 것이다. 본 연구는 이러한 과정에서 발생할 수 있는 보안 위협들 중에서 콘텐츠의 불법 다운로드 및 기기 인증 우회 등으로 인해 발생할 수 있는 피해를 예방하기 위한 방법으로서 공개키 기반 상호 인증 및 키 분배 방식과 암호 통신 방법을 제안한다.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.16 no.11
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• pp.8057-8063
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• 2015

It is expected that internet of things can be used for various fields such as smart home, smart building and smart city as the representative case of ICT that sensor, communication and interface technologies operate organically and the researches of the technologies regarding internet of things are being carried out in each countries worldwide. However, many problems rise against internet of things continuously in respect of security. Among them, the problem of privacy is the one that should be solved definitely regarding internet of things. If user data does not remain during the process of user authentication, such the privacy problem can be solved. In this paper, we propose the framework of user authentication based on OAuth that is suitable for the environment of internet of things that can solve privacy problem and analyze its security.

• Journal of Internet Computing and Services
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• v.13 no.3
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• pp.127-137
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• 2012

With the spread of the new technologies like a smart phone, a smart pad, N-Screen service for financial transaction quickly became commonplace through the Internet. Although it has been developed related technologies and policies since the N-Screen has been provided in Korea, infrastructure for financial services is still lacking. It also has many potential problems including phishing or malware attacks, privacy information exposure & breaches, etc. This work suggests the financial security framework in the side of information protection through threat vulnerability analysis. Further, we examine the possibility of effective application methods based on political technical design.

• Proceedings of the Korean Information Science Society Conference
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• 2011.06b
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• pp.353-356
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• 2011

IT기술 산업의 발전과 함께 홈 네트워크에 의해 댁내에서 제어되는 가전 기기들의 종류가 많아지고, 가전기기 외에도 스마트폰과 같은 개인별 소형 단말기의 보유량이 증가함에 따라 다양해진 댁내 장치들의 제어를 위한 관리 서비스의 요구도 증가하게 되었다. 본 논문에서는 홈네트워크 가전기기의 기능을 객체 지향적으로 설계한 OVNet(Object Virtual Network)기반의 홈 네트워크 미들웨어를 통해 홈 네트워크에서 필요한 사용자 및 디바이스, 콘텐츠 그리고 보안 등의 관리를 할 수 있는 객체기반의 관리 모듈을 설계하였다.

• Convergence Security Journal
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• v.12 no.3
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• pp.107-113
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• 2012

Due to the development of communications technology, it is now possible to be offered online from remote places. This kind of communications technology can be applied to the medical field. The medical treatment appointments in hospitals can be its typical example. But still, in most of hospitals, patient or guardian have to physically visit or call to the hospital to set up an appointment for the medical treatment. In addition, they have to wait in line in order to pay after receiving the medical treatment. The patient or guardian, after paying, receive a paper prescription and they go to a nearby pharmacy to take the medicines. They must wait in line again there in order to receive the medicine from the pharmacy. In this paper, we would like to suggest a smart medical treatment system in order to solve the problems discussed above. With this proposed system, the user will be able to make an appointment, make payments and receive medication quickly and easily without spending extra time. Also, there will be no need for paper prescriptions with this system. We discuss about the security of medical information for this proposed smart medical treatment system proposed.