• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2016.10a
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• pp.496-499
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• 2016

The smartfarm is a leader in the Field of environmental monitoring in agriculture. By the use of wireless remote systems, monitoring applications of the smartfarm are able to provide vital information to the farmer wherever he may be. Absentee farmers are finding the ease of viewing the application graphs on their mobile phone is providing them with peace of mind. We design system and technical requirements of service for managing and operating smart-farm based on cloud technology. It describes requirements of cloud technology for monitoring, controlling, managing, and operating cloud-based smart farm. Smart farm system and service with cloud platform contains 3 interfaces and 3 services. In addition, smart-farm using cloud platform could have several cases so it should be established and managed in varying way depending on cultivars, its size and type. This paper will focus the industry's attention on the importance of Open/Standard Cloud platform thereby stimulating the smartfarm in agriculture.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2012.10a
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• pp.804-807
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• 2012

Cloud service provider has to protect client's information securely since all the resources are offered by the service provider, and a large number of users share the resources. In this paper, a NoSQL-based anomaly detection system is proposed in order to enhance the security of mobile cloud services. The existing integrated security management system that uses a relational database can not be used for real-time processing of data since security log from a variety of security equipment and data from cloud node have different data format with unstructured features. The proposed system can resolve the emerging security problem because it provides real time processing and scalability in distributed processing environment.

• Journal of Information Technology Services
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• v.12 no.4
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• pp.369-380
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• 2013

The advent of the state-of-the-art technologies such as cloud computing and big data processing stimulates the provision of various new IT services, which implies that more servers are required to support them. However, the need for more servers will lead to more energy consumption and the efficient use of energy in the computing environment will become more important. The next generation nonvolatile RAM has many desirable features such as byte addressability, low access latency, high density and low energy consumption. There are many approaches to adopt them especially in the area of the file system involving storage devices, but their focus lies on the improvement of system performance, not on energy reduction. This paper suggests a novel approach for energy reduction in which the MRAM-based SSD is utilized as a storage device instead of the hard disk and a downsized page is adopted instead of the 4KB page that is the size of a page in the ordinary file system. The simulation results show that energy efficiency of a new approach is very effective in case of accessing the small number of bytes and is improved up to 128 times better than that of NAND Flash memory.

• Journal of Computing Science and Engineering
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• v.6 no.2
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• pp.119-126
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• 2012

Machine-to-machine communications for healthcare is emerging for the benefit of humans. In addition to novel medium access, we provide a systematic view to look for ways to develop technology to accomplish this goal, and a thorough vision toward effective system and network design.

• 한국IT서비스학회:학술대회논문집
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• 2010.05a
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• pp.481-490
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• 2010

최근에 사용자가 필요한 만큼의 하드웨어 또는 소프트웨어를 유틸리티 서비스(utility service) 형태로 제공 받을 수 있는 클라우드 컴퓨팅 시대가 대두되었다. 이에 본 연구에서는 첫째, 사용자 입장에서 본 연구에서 도출한 클라우드 컴퓨팅 서비스의 성공요인이 해당서비스로의 전환에 영향을 주는가? 둘째, 혁신확산관점에서 클라우드 컴퓨팅 전환의도에 영향을 미치는 요인은 무엇인가? 두 가지의 연구주제를 실증하였다. 실증분석결과 본 연구에서 제시한 모든 가설이 지지되었다.

• 한국IT서비스학회:학술대회논문집
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• 2010.05a
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• pp.322-327
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• 2010

전세계적으로 IT분야에서 클라우드 컴퓨팅에 대한 관심이 높아지고 있으며, 많은 기업들이 클라우드 컴퓨팅 서비스를 준비하고 있거나 이미 서비스 중 이다. 국내 기업과 정부 연구소 등에서도 클라우드 컴퓨팅 서비스에 관련된 연구와 개발이 활발하게 진행 중이다. 본 연구는 실증연구를 통해 클라우드 컴퓨팅의 시스템 품질이 사용자의 이용의도에 미치는 영향에 대해 기술수용모델을 이용하여 밝혀내고, 앞으로 클라우드 컴퓨팅 서비스가 사용자의 참여를 높이기 위해 갖추어야 할 시스템 품질 요소에 대해 제안하고자 한다.

• Electronics and Telecommunications Trends
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• v.34 no.2
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• pp.60-72
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• 2019

Commercial services providing quantum cryptographic communication are available in China and the United States of America (USA), and a commercial cloud service for quantum computing is available in the USA. This has been possible since the early stage prototypes of quantum technologies have transitioned from theory to practical applications. This has led to the development of a new industrial ecosystem so that governments are announcing plans to support further research and development, new ventures are being launched, and a market is emerging. We will discuss the technological possibilities of future developments from the early-stage achievements.

• Annual Conference of KIPS
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• 2024.05a
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• pp.239-240
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• 2024

OneDrive 는 Microsoft 에서 제공하는 클라우드 스토리지 서비스이다. OneDrive 데스크톱 앱은 사용자가 로그아웃한 이후 재로그인을 시도할 때 사용자 기기에 저장되어 있던 토큰을 사용해 로그인을 진행하며, 사용자의 패스워드를 추가로 요구하지 않는다. 이는 로그아웃한 사용자의 유효한 로그인 정보가 기기에 남아있음을 의미하며, 본 연구에서는 이를 활용해 OneDrive 의 토큰 저장소를 분석하고 토큰 이식 공격이 가능함을 보인다.

• Convergence Security Journal
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• v.15 no.7
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• pp.47-53
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• 2015

Recently, the Internet of Things is an important technology with a Cloud computing services and a Big data in the IT fields. and The Internet of Things is widely used in various industries. This trend may be referred to as the emergence of significant based technologies for realizing a ubiquitous times. But the security problems of Internet of things are expected to increase with being realized in a variety of industries. and it will be have to provide a corresponding technology to the security threat for this. Therefore, this paper will be analyzed to the security threats of the Internet of Things by the cases. Thereby this is expected to be utilized as a basis for the countermeasure of Internet of Things in a future.

• Journal of the Korean Association of Geographic Information Studies
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• v.21 no.4
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• pp.1-13
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• 2018

Both Platform as a Service (PaaS) as one of the cloud computing service models and the e-government (e-Gov) standard framework from the Ministry of the Interior and Safety (MOIS) provide developers with practical computing environments to build their applications in every web-based services. Web application developers in the geo-spatial information field can utilize and deploy many middleware software or common functions provided by either the cloud-based service or the e-Gov standard framework. However, there are few studies for their applicability and performance in the field of actual geo-spatial information application yet. Therefore, the motivation of this study was to investigate the relevance of these technologies or platform. The applicability of these computing environments and the performance evaluation were performed after a test application deployment of the spatial image processing case service using Web Processing Service (WPS) 2.0 on the e-Gov standard framework. This system was a test service supported by a cloud environment of Cloud Foundry, one of open source PaaS cloud platforms. Using these components, the performance of the test system in two cases of 300 and 500 threads was assessed through a comparison test with two kinds of service: a service case for only the PaaS and that on the e-Gov on the PaaS. The performance measurements were based on the recording of response time with respect to users' requests during 3,600 seconds. According to the experimental results, all the test cases of the e-Gov on PaaS considered showed a greater performance. It is expected that the e-Gov standard framework on the PaaS cloud would be important factors to build the web-based spatial information service, especially in public sectors.