• 한국HCI학회:학술대회논문집
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• 2008.02b
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• pp.317-322
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• 2008

WCDMA 의 등장으로 영상통화를 지원하는 휴대폰의 보급은 빠르게 확산되고 있다. 하지만 예상과 달리 사용자들의 실제 영상통화 이용율은 그리 활성화 되지 못하고 있는 실정이다. 본 연구자들은 이러한 현상이 나타나게 된 원인이 영상통화 기능이 단순한 통화기능으로만 활용될 뿐 그 실질적 효용성이 높지 못하기 때문이라 판단하여, 영상 통화를 활성화 시킬 수 있는 방안에 대한 연구를 진행하였다. 오늘날 IT 기반의 서비스 중에 매우 활성화 된 것이 쇼핑 관련 서비스이다. 무선 인터넷과 모바일 환경에서 금융과 통신의 융합이 사회적 화두로 떠오르고, 이러한 이유로 영상통화 기능을 쇼핑과 연계한다면 그 효용성이 매우 커질 것으로 판단하였다. 그리하여 본 연구에서는 사용자 행태 조사을 통해 그들의 needs 를 범주화하고 분석하여 영상통화 쇼핑 서비스 어플리케이션을 도출하였다. 그리고 도출된 어플리케이션의 세부적 절차와 원활한 인터페이스의 설계를 위해 시나리오 형식으로 개방하여 그 형태를 구체화시키고자 하였다.

• Annual Conference of KIPS
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• 2012.11a
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• pp.920-922
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• 2012

현재 많은 사람들이 스마트폰을 이용하고 있으며 스마트폰을 활용한 IT 기술들이 나날이 발전하고 있다. 또한 스마트폰을 이용 하여 사람들이 생활하는데 있어서 더욱 더 편리한 생활을 할 수 있도록 서비스 환경을 제공해준다. 그 중 대표적인 기술이 U-Health(Ubiquitous-Health) 기술 이며 U-Health 기술은 건강증진과 고령화 사회를 대비하기 위한 효과적인 문제해결 방안으로 주목받고 있다. U-Health 서비스는 스마트폰의 각종 센서를 활용하여 환자의 건강 상태를 체크하고 실시간으로 업데이트 하여 환자의 상태를 더욱 효율적으로 관리할 수 있다. 그러나 환자와 병원 서버 간에 데이터 단일화, 통신문제 등으로 인해서 아직까지는 많이 활용되고 있지 않는 현실이다. 또한 스마트폰으로 인한 환자의 개인신상 정보가 쉽게 노출될 수 있다는 단점이 있다. 따라서 본 논문에서는 NFC(Near Field Communication) 기반에서 환자와 병원간에 신뢰성 있는 데이터 전송을 위한 인증 시스템을 설계 하였다.

• Convergence Security Journal
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• v.21 no.1
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• pp.115-120
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• 2021

An O2O-based real estate brokerage web sites or apps are increasing explosively. As a result, the environment has been changed from the existing offline-based real estate brokerage environment to the online-based environment, and consumers are getting very good feelings in terms of time, cost, and convenience. However, behind the convenience of online-based real estate brokerage services, users often suffer time and money damage due to false information or malicious false information. Therefore, in this study, in order to reduce the damage to consumers that may occur in the O2O-based real estate brokerage service, we designed a false property information filtering system that can determine the authenticity of registered property information using artificial intelligence technology. Through the proposed research method, it was shown that not only the authenticity of the property information registered in the online real estate service can be determined, but also the temporal and financial damage of consumers can be reduced.

• Journal of Digital Convergence
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• v.17 no.12
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• pp.249-254
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• 2019

According to the recent expansion of the network environment, the spread of smart devices is continuously increasing. With the spread of smart devices such as smart phones, smart pads and wearables, changes are taking place in smart technologies and IT convergence technologies. The development of smart technology is a key element of the 4th industrial technology. The Fourth Industrial Revolution expanded the new service-based industry by adding intelligence to residential, industrial and production environments using IT convergence and smart devices. Research on providing various services using smart technologies, such as smart home, smart factory, smart farm, and smart healthcare, is being conducted in variety. In particular, There is a sharp rise in smart homes due to the proliferation of IoT devices and the growth of sensor technology, control technology, applications, data management, and cloud services. Smart home services using smart technology provide residents with convenient, beneficial services and environments. Smart home service has complemented the existing home network service, but there still are flaws to be modified. In other words, the spread of smart devices, the development of service provider-oriented services, and the interlocking of services have limitations in providing services in consideration of user environment and user state. In order to solve this problem, this study proposes a smart home service system that considers the situation of the elderly.

• Annual Conference of KIPS
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• 2015.04a
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• pp.409-411
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• 2015

최근 사물인터넷에 대한 발전이 빠르게 이루어짐에 따라서 인터넷 상의 보안 이슈 또한 증가하고 있다. 이에 따라 데이터를 안전하고 은밀하게 통신하기 위한 공개키 기반 구조 (public-Key Infrastructure: PKI) 기술이 발전하고 있다. PKI는 신뢰할 수 있는 기관에서 개인이나 기관을 식별할 수 있는 인증서를 저장하고 있으며 이를 활용할 수 있도록 돕는 디렉토리 서비스를 제공한다. 특히 기존의 PKI 구조에는 사용자의 경험이 담겨있는 패스워드 기반으로 개인키를 암호화 하고 있다. 이는 사용자 인증과 데이터 암호화와 같은 강력한 보안 서비스를 제공하고 있지만 이 또한 취약점을 내포하고 있다. 본 논문에서는 공개키 기반 구조의 핵심 요소에 대해 논의하며 보안 취약점을 분석한다. 이를 통해 안전한 사물인터넷 환경을 위한 연구 방향을 제시한다.

• Journal of Digital Convergence
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• v.11 no.7
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• pp.215-223
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• 2013

As cloud computing is activated, a variety of cloud services are being distributed. However, to use each different cloud service, you must perform a individual user authentication process to service. Therefore, not only the procedure is cumbersome but also due to repeated authentication process performance, it can cause password exposure or database overload that needs to have user's authentication information each cloud server. Moreover, there is high probability of security problem that being occurred by phishing attacks that result from different authentication schemes and input scheme for each service. Thus, when you want to use a variety of cloud service, we proposed OpenID based user authentication scheme that can be applied to a multi-cloud environment by the trusted user's verify ID provider.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2013.10a
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• pp.678-680
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• 2013

Recently, A computing environment are provided that can easily be used for services based on the cloud environment. Among them, SaaS(SoftWare as a Service) is that it provides cloud users to be available by placing the cloud systems on the Internet software. But, the problem with this, problems is that user can not be utilized to not find a service registered in the cloud system. The thing to make clear the meaning and relationship between services using the ontology to solve these problems, It must be supported to be used to find the exact service the user wants. Ontology for service discovery can be used to help to find services by guessing relevance by using the function or service names entered by the user. We provide how to configure the service ontology and the search system of services using ontology.

• Journal of Digital Convergence
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• v.11 no.5
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• pp.63-72
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• 2013

Cloud services is recognized the essential IT infrastructure in the optimal smart society which is changing rapidly as a low-cost and high-efficiency. This service of starting from prominent overseas companies such as Google, Amazon, had influenced on the introduction of the service for the various policies of foreign governments, including the United States and the United Kingdom. Such countries adopt to the cloud computing and make transform to the cloud service of existing public service for the effective management of information resources. In this study, we propose a model for adoption of appropriate cloud-based public services in Korea through analyzing the foreign government case of adoption of cloud services.

• Journal of KIISE:Computing Practices and Letters
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• v.13 no.5
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• pp.282-292
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• 2007

In this paper, we propose the active model based on the distributed object group framework which provides adaptive information sharing service to support it to various Healthcare home service. And we applied it to Healthcare home service. This proposed model provides information that collected from physical environment of the home network and sensors for healthcare service according to situation of the user. We uses information of the healthcare information database which was constructed previously, and we uses TMO scheme for to solve each other different periodic qualify. We uses information of the healthcare information database which was constructed previously, and we uses TMO scheme for to solve each other different periodic quality. Specialty, We wrote about interaction of various Healthcare Home services for adaptive information services, and wrote about u-healthcare framework based on DOGF. Finally, we apply active model to healthcare monitoring service, and we showed its result and performance evaluation.

• The Journal of the Korea Contents Association
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• v.10 no.8
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• pp.111-118
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• 2010

The OSGi platform is a Java-based component platform that is being widely used from environments for the application development to enterprise software. The OSGi platform provides dynamic and transparent installation for open environments. However, it open new attacks so that many researches try to solve OSGi vulnerability. Security flaws in OSGi platform are categorized two parts: the JVM and the OSGi platform itself. We focus on vulnerability by OSGi platform itself, particularly service injection. We identify the service injection attack and suggest secure mechanisms to prevent the attack. Those mechanisms are implemented, providing a few modification to the Knopflerfish OSGi implementation and are evaluated through comparing with existing mechanisms.