• The Journal of Society for e-Business Studies
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• v.24 no.2
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• pp.15-27
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• 2019

In the past, the control system was a closed network that was not connected to the external network. However, in recent years, many cases have been opened to the outside for the convenience of management. Are connected to the Internet, and the number of operating control systems is increasing. As a result, it is obvious that hackers are able to make various attack attempts targeting the control system due to external open, and they are exposed to various security threats and are targeted for attack. Industrial control systems that are open to the outside have most of the remote management ports for web services or remote management, and the expansion of web services through web programs inherits the common web vulnerability as the control system is no exception. In this study, we classify and compare existing web vulnerability items in order to derive the most commonly tried web hacking attacks against control system from the attacker's point of view. I tried to confirm.

• Proceedings of the Plant Resources Society of Korea Conference
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• 2019.10a
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• pp.42-42
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• 2019

한국생명공학연구원은 1985년 설립된 이후로 현재까지 국가적 연구개발 수요에 대응하여 바이오 분야의 기초 원천 연구, 인프라 구축 및 운영을 통하여 우리나라 생명과학기술 발전에 힘써왔다. 특히 2006년부터는 해외생물자원의 중요성에 주목하여 차세대 국가 핵심 전략 BT산업의 필수 원자재인 생물소재의 범지구적 확보, 보존 및 관리를 위하여 해외생물소재센터를 설치하였다. 이후 차례로 중국, 코스타리카, 인도네시아, 베트남의 4개 거점 센터를 개소 및 운영하여 권역별 해외생물소재의 공동연구 및 국제협력 네트워크를 구축하고 효과적인 소재 확보 및 관리를 도모하고 있다. 이와 같이 확보된 소재는 36개국에서 채집된 약 318과 3,406속의 36,500여점 (2019년 9월 기준)에 달하고 소재의 확증표본은 해외생물소재센터 식물표본관(KRIB)에 보관 중이다. KRIB표본관은 2000년 Index Herbariorum에 등록되었으며, 약 80,000여점의 건조표본을 소장하고 있다. 분류군수는 과별로 콩과>국화과>꼭두서니과 순으로 많았으며, 국가별로는 중국>베트남>코스타리카 순으로 조사되었다. 한국생명공학연구원 해외생물소재센터 및 식물표본관은 소재의 정확한 동정을 위한 분류학적 시설로서의 역할뿐 아니라 누구에게나 개방된 홈페이지를 통하여 해외소재의 표본정보, 표본이미지 및 민속학적 정보와 활성 등 가치 있는 정보를 제공하여 연구자들에게 다양한 활용지원 서비스를 제공하고 있다.

• Proceedings of the Plant Resources Society of Korea Conference
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• 2019.10a
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• pp.99-99
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• 2019

한국생명공학연구원 해외생물소재센터는 해외생물소재 확보 및 활용연구를 통하여 차세대 국가핵심전략 BT산업의 필수원자재인 생물소재의 범지구적 확보와 보존 관리의 임무를 수행하고 있다. 이를 위해 권역별 해외생물소재 공동연구센터(중국, 코스타리카, 인도네시아, 베트남) 및 37개국과의 국제협력 네트워크를 구축하고 있다. 세계적 수준의 생물소재 국가 인프라 구축을 목표로 국내 산 학 연 연구자들에게 다양한 해외생물소재 공급을 통한 지속 가능한 바이오 경제 기반 구축을 지원하고 있다. 해외생물소재센터에서는 2006년부터 특히 천연물 의약품 개발 분야에 많이 사용 되고 있는 해외 식물소재를 지속적으로 확보하고 있으며, 확보된 식물소재의 추출물 제조 및 추출물 은행을 구축, 이에 대한 생물활성 평가를 실시하며 연구자들에게 기초 자료로 제공하고 있다. 현재까지 총 36,500종의 해외식물소재를 확보하였으며, 추출물 약 320만점을 확보하였다. 확보된 소재의 분양활동을 통해 산 학 연 연구자들에게 180만여 점을 분양하였으며, 이를 활용한 다수의 논문과 특허를 획득하였고 중대형 기술이전을 실시하였다. 해외생물소재센터는 홈페이지 기반 분양 신청 시스템[https://www.ibmrc.re.kr]을 통하여 해외식물소재(Powder 와 Extact 형태) 분양서비스를 제공하고 있다. 또한 소재가치제고 연구를 통한 산업화 지원과 해외생물소재의 표본정보 서비스, 해외거점센터를 활용한 현지정보 제공 서비스를 지원하고 있다.

• KIPS Transactions on Computer and Communication Systems
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• v.9 no.12
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• pp.307-314
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• 2020

The video surveillance service is being widely deployed around our lives and the service stores sensitive data such as video streams in the cloud over the Internet or the centralized data store in an on-premise environment. The main concerning of these services is that the user should trust the service provider how secure the video or data is stored and handled without any concrete evidence. In this paper, we proposed the approach to protecting video by PKI (public key infrastructure) with a blockchain network. The video is encrypted by a symmetric key, then the key is shared through a blockchain network with taking advantage of the PKI mechanism. Therefore, the user can ensure the sensitive data is always kept secure and traceable in its lifecycle.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.22 no.4
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• pp.869-882
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• 2012

With the growth of Web services and the development of web exploit toolkits, web-based malware has increased dramatically. Using Javascript Obfuscation, recent web-based malware hide a malicious URL and the exploit code. Thus, pattern matching for network intrusion detection systems has difficulty of detecting malware. Though various methods have proposed to detect Javascript malware on a users' web browser, the overall detection is needed to counter advanced attacks such as APTs(Advanced Persistent Treats), aimed at penetration into a certain an organization's intranet. To overcome the limitation of previous pattern matching for network intrusion detection systems, a novel deobfuscating method to handle obfuscated Javascript is needed. In this paper, we propose a framework for effective hidden malware detection through an automated deobfuscation regardless of advanced obfuscation techniques with overriding JavaScript functions and a separate JavaScript interpreter through to improve jsunpack-n.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.24 no.2
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• pp.285-289
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• 2020

The configuration of hierarchical wireless networks is provided to support diverse network environments. In the base station, two system state can be basically considered for the operation management so that the state transition may be occurred between active and sleep modes. Hence, to reduce energy consumption the system operation management of the low power should be considered to the base station system. In this paper we consider the analytical model of Discontinuous Reception (DRX) to investigate the system management. We provide the analysis scheme of base station system by the DRX model, and the low power factor would be investigated for the energy consumption. We also use the finite-state Markov system model that in a system state period the wireless resource request and the operation of service call arrival interval is considered to numerically analyze the performance of energy saving operations of base station.

• Journal of the Economic Geographical Society of Korea
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• v.25 no.3
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• pp.380-396
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• 2022

In this study, the location and network hierarchy of the seven major test and certification institutions in Korea were analyzed. First, like other APS, the test and certification institutions are concentrated in the metropolitan area, and the spatial spread of the branch is developing. Second, unlike other APS, branches do not accumulate in large cities. It is deeply related to regional economic geography characteristics such as proximity to manufacturers and specificity of regional strategic industries. Third, despite the spatial spread, workers are concentrated in the metropolitan area. Fourth, urban-regions are mainly formed between the metropolitan area of test certification and the Chungbuk(Cheong) area.

• Journal of the Korea Society for Simulation
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• v.18 no.3
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• pp.61-71
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• 2009

The server redirection system replicates contents on replica servers in the distributed network environment. When users make a request for contents, the system can provide the contents much faster than the client-server network system. In the server redirection system, it is the most important to select the optimal replica server with user's information because many replica servers are geographically distributed. And, the system can serve contents to users flexibly if a redirector is well constructed. In this paper, the redirector makes a list of candidates suitable for user conditions by the decision tree method and calculates the availability of each replica server. And, the redirector selects the replica server with the highest availability. This paper also proposes an availability-based server redirection system that predicts the availability of each replica server in order to reduce the workload of replica servers and the repetitive communication messages between a redirector and replica servers. If a user accesses the network path for the replica server selected and noticed by the proposed system, the user can get contents effectively and efficiently.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2022.10a
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• pp.34-36
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• 2022

In the existing text sentiment analysis models, the entire text is usually directly modeled as a whole, and the hierarchical relationship between text contents is less considered. However, in the practice of sentiment analysis, many texts are mixed with multiple emotions. If the semantic modeling of the whole is directly performed, it may increase the difficulty of the sentiment analysis model to judge the sentiment, making the model difficult to apply to the classification of mixed-sentiment sentences. Therefore, this paper proposes a sentiment analysis model BHGCN that considers the text hierarchy. In this model, the output of hidden states of each layer of BERT is used as a node, and a directed connection is made between the upper and lower layers to construct a graph network with a semantic hierarchy. The model not only pays attention to layer-by-layer semantics, but also pays attention to hierarchical relationships. Suitable for handling mixed sentiment classification tasks. The comparative experimental results show that the BHGCN model exhibits obvious competitive advantages.

• Journal of the Korea Society of Computer and Information
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• v.14 no.9
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• pp.75-84
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• 2009

In this paper, the EPC Network as the most important technologies in the field of applied technology research and special attention to the use of RFID to better manage the disease in infected U-MAS (U-Medical Administrative Services) system was designed. U-MAS system, the Center for Disease Control in the illness, depending on the type of isolate and treat infected patients, recovery, discharge, isolation wards and intensive italian to manage and increase efficiency, manual and use a simple computer program improve the qualify of the current level, using RFID tags to improve the management of the patient everything that a little more and be out of the isolation ward, if competent disease management districts, such as the location to respond more quickly to facilitate the purpose is to contribute to. First, EPC Network and related technology for mobile RFID systems and related technology research. U-MAS system design offers. If you take advantage of the proposed U-MAS system for monitoring infectious disease patients and patients in the isolation ward, when the unauthorized departure location to shorten the time it takes to improve the effectiveness of disease management and present the elected effects was.