• Journal of the Korea Institute of Information Security & Cryptology
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• v.22 no.5
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• pp.1027-1037
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• 2012

With response to the critical issue of global warming, Smart Grid system has been extensively investigated as next efficient power grid system. Domestically, Korean is trying to expand the usage of Electric Vehicles (EVs) and the charging infrastructure in order to replace the current transportation using fossil fuels holding 20% of overall CO2 emission. The EVs charging infrastructures are combined with IT technologies to build intelligent environments but have considerable number of cyber security issues because of its inherent nature of the technologies. This work not only provides logical architecture of EV charging infrastructures with security threats based on them but also analyses security requirements against security threats in order to overcome the adversarial activities to Smart Grid.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.16 no.2
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• pp.279-287
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• 2012

Recharging battery in electric vehicle takes a quite long time compared with gasoline and diesel vehicle which is a problem, the industries should solve, to introduce the electric vehicle into the market. For this reason, the institutions are suggesting a method replacing the discharged battery to recharged battery which is recharged in the switching center. However, this technology is still required to make clear the controversial issues such as threats to security and identification of users. In this paper, we explore the factors that threats to securities in battery exchange system and define the security requirements of the battery exchange system to solve suggested issues. The results of the research are expected to be the reference in the other studies of electric vehicle field of the commercialization of the battery recharging methods and analysis of the securities.

• The Journal of the Convergence on Culture Technology
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• v.7 no.1
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• pp.551-557
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• 2021

With increase of electric vehicle in the road, the number of charging/discharging infrastructure for electric vehicle in public space is also increased rapidly. To charge or discharge the electric vehicle the user of electric vehicle and service provider should verify the each other's identity to minimize security vulnerability. This paper proposes mutual authentication scheme between electric vehicle and charging/discharging service provider with help of hash function and Message Authentication Code(MAC). Also efficient operating scheme for charging/discharging service system is proposed. The analysis shows that the system has robustness against security vulnerability. Also this system can keep the sensitive personal information of service user safely.

• The Journal of the Convergence on Culture Technology
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• v.6 no.1
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• pp.441-448
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• 2020

With help of Vehicle-to-Grid(V2G) technology battery in electric vehicle can be used as distributed energy resource and energy storage in a smart grid environment. Several problems of security vulnerability and privacy preservation can be occurred because V2G network supports 2 way communication among all components. This paper explains and makes analysis of architecture, privacy sensitive data, security vulnerability and security requirement of V2G system. Furthermore efficient architecture and operating scheme for V2G system are proposed. This scheme uses symmetric cryptosystem and hash algorithm to support privacy preservation and mutual authentication.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.26 no.4
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• pp.941-951
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• 2016

Limitation of fossil energy from one side and the efficiency of the electrical engine from another side motivate the industrials to encourage people for utilizing electric vehicles (EVs). To decrease the cost of EVs, the size of battery should be reduced which causes an inconvenient frequent recharging. Wireless charging is a solution for charging of electric vehicles on the move, but frequent charging causes to disclose users' location information. In this paper, we first propose an infrastructure for wireless charging of electric vehicles, and then we explain security issues that can be stated in this condition.

• Electrical & Electronic Materials
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• v.11 no.7
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• pp.581-586
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• 1998

• Journal of IKEEE
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• v.25 no.3
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• pp.571-577
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• 2021

This paper describes ISO/TR 4804, an international standard to describe how to design and verify autonomous cars to ensure safety and cybersecurity. Goals of ISO/TR 4804 are (1) positive risk balance and (2) avoidance of unreasonable risk. It also 12 principles of safety and cybersecurity to achieve these goals. In the design procedures, it describes (1) 13 capabilities to achieve these safety and cybersecurity principles, (2) hardware and software elements to achieve these capabilities, and (3) a generic logical architecture to combine these elements. In the verification procedures, it describes (1) 5 challenges to ensure safety and cybersecurity, (2) test goals, platforms, and solutions to achieve these challenges, (3) simulation and field operation methods, and (4) verification methods for hardware and software elements. Especially, it regards deep neural network as a software component and it describe design and verification methods of autonomous cars.

• Proceedings of the Korea Information Processing Society Conference
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• 2011.04a
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• pp.1610-1613
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• 2011

본 논문은 전기자동차에 대한 데이터를 관리하기 위한 시스템을 위한 것으로, 전기 자동차의 데이터를 실시간으로 읽어들여, 이를 인터넷 상에 위치한 Web 서비스를 통하여 DB에 XML 형태로 저장하기 위한 시스템이다. 실시간으로 데이터를 읽어들여 DB에 저장함에 있어서, 향후 보안 모델의 적용 및 서비스의 확장을 용이하게 하기 위해 SOAP을 적용하였다. 통합된 시스템이 만들어지면, 현재 전기자동차의 상태정보를 읽어들여, 자동차의 상황정보와 함께 계산하여 운전자에게 다양한 정보를 줄 수 있는 시스템으로 개발될 것이다.

• Journal of Digital Convergence
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• v.11 no.7
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• pp.141-148
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• 2013

Smart grid can two-way communication using ICT(Information & Communication Technology). Also, smart grid can supply to dynamic power that grafted to electric vehicle can activate to electric vehicle charging infrastructure and used to storage battery of home. Storage battery of home can resale to power provider. These electric vehicle charging infrastructure locate fixed on home, apartment, building, etc charging infrastructure that used fluid on user. If don't authentication for user of fluid user use to charging infrastructure, electric charging service can occurred to illegal use, electric charges and leakgage of electric information. In this paper, we propose smartcard and dynamic ID based user authentication scheme for used secure to electric vehicle service in smart grid environment.

• Proceedings of the Korea Information Processing Society Conference
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• 2023.11a
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• pp.770-771
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• 2023

'환경친화적 자동차의 개발 및 보급 촉진에 관한 법률'에 따라 주거지역 내의 전기차 충전기 설치 및 보급이 빠르게 확산 중이다. 전기 자동차는 충전 중 화재 시 리튬이온 배터리 열폭주(thermal runaway) 현상 때문에 쉽게 진압하지 못한다는 단점이 존재한다. 이에 따라 지하 주차장에서의 전기 자동차 충전 중 화재 시 피해 최소화를 위한 스마트 IoT 주차장을 기획하고 개발하였다.