• Journal of the Korea Institute of Information and Communication Engineering
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• v.15 no.6
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• pp.1307-1312
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• 2011

Radio Frequency Identification(RFID) has been considered as an key infrastructure for the ubiquitous society. However, due to the inherent drawbacks, RFID causes var- ious security threats like privacy problems, tag cloning, etc. This paper proposes a novel practical approach, which are fully conformed to EPCglobal RFID Gen2 standard, for enhancing security of currently used RFID Gen2 tags against the various security threats.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.23 no.3
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• pp.405-416
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• 2013

ZigBee is a wireless sensor network protocol recognized as a next-generation standard infrastructure for WBAN and Smart Grid. Security plays an important role in several ZigBee applications. Especially, strict membership control should be enforced when the membership is changed during the join and leave operations in ZigBee. In this paper, we investigate the security weakness of the current leave operation in ZigBee and propose a new security scheme to address it as well as its security and performance analysis.

• Journal of Multimedia Information System
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• v.7 no.1
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• pp.45-54
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• 2020

This paper presented a brief introduction along with various wireless standards which provide an interactive way of interaction among the vehicles and provides effective communication in VANET. Security issues such as confidentiality, authenticity, integrity, availability and non-repudiation, which aims to secure communication between vehicle-to-vehicle (V2V) and vehicle-to-infrastructure (V2I). A detailed discussion and analysis of various possible attacks based on security services are also presented that address security and privacy concern in VANETs. Finally a general analysis of possible challenges is mentioned. This paper can serve as a source and reference in building the new technique for VANETs.

• Journal of information and communication convergence engineering
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• v.3 no.1
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• pp.38-42
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• 2005

The cyber attacks on the computer system in nowadays are focused on works that do not operate specific application. The main key point that we protect information security system has an access control to keep an application. Most of system has a main function to protect an infrastructure such as hardware, network and operating system. In this paper, we have presented an intrusion tolerance system that can service an application in spite of cyber attacks. The proposed system is based on the middle ware integrating security mechanism and separate function of application and intrusion tolerance. The main factor we use security system in nowadays is service to keep a persistency. The proposed intrusion tolerance system is applicable to such as medical, national defense and banking system.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2017.10a
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• pp.587-590
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• 2017

In this paper, we investigate the current status and problems of information security in government - funded research institutes, where the frequency of cyber - infringement threats is increasing, and emphasize the importance of information security. do. To this end, we will contribute to the establishment of a stable information security infrastructure for government-funded research institutes in the future by identifying problems and proposing improvement measures based on data related to information security such as information security policies, organizations, and budgets of government-funded research institutes.

• Journal of Korea Society of Digital Industry and Information Management
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• v.14 no.4
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• pp.47-56
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• 2018

We analyzed security threats and suggested countermeasures about the block chain technologies which has emerged as a core technology of the fourth industrial revolution. We know that increasing the security leads to slow down program processing rate in the block chain systems. The block chain system which is currently an early stage of technological development, to become an economic and social infrastructure, development of technology and active policy implementation will be necessary. We studied on the security threats and countermeasures of the Bit Coin based on block chain. Further research should be undertaken on the possibility that future studies could have a real adverse effect on the integrity of the data.

• International Journal of Computer Science & Network Security
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• v.23 no.6
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• pp.155-161
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• 2023

In the process of remarkable progress in the medical and technical field and activating the role of technology in health care services and applications, and since the safety of medical data and its protection from security violations plays a major role in assessing the security of health facilities and the safety of medical servers Thus, it is necessary to know the cyber vulnerabilities in health information systems and other related services to prevent and address them in addition to obtaining the best solutions and practices to reach a high level of cybersecurity against attackers, especially due to the digital transformation of health care systems and the rest of the dealings. This research is about what cyberattacks are and the purpose of them, in addition to the methods of penetration. Then challenges, solutions and some of the security issues will be discussed in general, and a special highlight will be given to obtaining a safe infrastructure to enjoy safe systems in return.

• Journal of The Korean Society of Agricultural Engineers
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• v.58 no.3
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• pp.81-90
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• 2016

It is significant to redevelop the deterioration reservoir through raising for countermeasure to climate change and Earthquake improvement of reservoir. This study aims to investigate the behavior of deterioration reservoir with poor-fabricated core subjected to raising water level and earthquake using numerical analysis. From the analysis results, water level raising and earthquakes induce crack and subsidences at the crown and the front side of deterioration reservoir. For the reinforcement of the deterioration reservoir is required appropriate measures method and raised method suitable, drainage and slope protection method judged to be necessary.

• Journal of Communications and Networks
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• v.8 no.4
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• pp.378-390
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• 2006

Many distributed applications build overlays on top of the Internet. Several unsolved issues at the network layer can explain this trend to implement network services such as multicast, mobility, and security at the application layer. On one hand, overlays creating basic topologies are usually limited in flexibility and scalability. On the other hand, overlays creating complex topologies require some form of application level addressing, routing, and naming mechanisms. Our aim is to design an efficient and robust addressing, routing, and naming infrastructure for these complex overlays. Our only assumption is that they are deployed over the Internet topology. Applications that use our middleware will be relieved from managing their own overlay topologies. Our infrastructure is based on the separation of the naming and the addressing planes and provides a convergence plane for the current heterogeneous Internet environment. To implement this property, we have designed a scalable distributed k-resilient name to address binding system. This paper describes the design of our overlay infrastructure and presents performance results concerning its routing scalability, its path inflation efficiency and its resilience to network dynamics.

• Proceedings of the Korean Society of Disaster Information Conference
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• 2022.10a
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• pp.423-424
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• 2022

본 연구에서는 미국의 국가핵심기반보호제도의 변화에 대해 고찰하고 시사점을 도출한다. 이를 위해 9/11 테러 공격 이후 국가핵심기반보호계획(National Infrastructure Protection Plan)을 중심으로 관련 법률 및 제도와 조직변화를 추적하고 고찰하였고, 이들의 관계를 도식화하여 타임라인(timeline)분석을 실시하였다. 본 연구를 통해 국토안보대통령령-8호(HSPD-8), 대통령령-21호(PDD-21), 사이버보안과 핵심기반법(Cybersecurity & Infrastructure Act)등의 관련 법제 변화를 통해 총 3가지 버전의 NIPP이 있음을 확인할 수 있었으며, 2018년에 사이버보안과 주요인프라청(CISA)이 창설되어 국가핵심기반보호제도업무를 이곳으로 이관하여 운영되고 있음을 알 수 있었다. 또한 국가핵심기반을 보는 관점이 9/11 테러 공격 이후 주요 핵심기반 보호(Protection)에서 주요핵심기반의 복원력(Resilience)제고로 변화하고 있음을 도출하였다.