• Journal of the Korea Institute of Information Security & Cryptology
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• v.18 no.5
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• pp.115-124
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• 2008

In vehicular networks, vehicles should be able to authenticate each other to securely communicate with network-based infrastructure, and their locations and identifiers should not be exposed from the communication messages. however, when an accident occurs, the investigating authorities have to trace down its origin. As vehicles communicate not only with RSUs(Road Side Units) but also with other vehicles, it is important to minimize the number of communication flows among the vehicles while the communication satisfies the several security properties such as anonymity, authenticity, and traceability. In our paper, when the mutual authentication protocol is working between vehicles and RSUs, the protocol offers the traceability with privacy protection using pseudonym and MAC (Message Authentication Code) chain. And also by using MAC-chain as one-time pseudonyms, our protocol does not need a separate way to manage pseudonyms.

• Journal of Korea Trade
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• v.24 no.5
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• pp.87-105
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• 2020

Purpose - The purpose of the study is to propose a theoretical framework of cross-border e-commerce ecosystems based on blockchain technology. The ecosystem includes five systems, namely, crossborder supply chain intelligent system, cross-border logistics system, cross-border payment system, cross-border product quality traceability system and cross-border customs supervision system. Design/methodology - This study firstly derived the main improvement factors for the new ecosystem based on blockchain through prior research and expert interviews on cross-border e-commerce. Then explored the use of virtue of decentralization, anti-counterfeiting traceability, consensus mechanism, smart contract and other means of the core technology of blockchain to overcome the bottleneck of cross-border e-commerce development among Korea, China, and Japan. Finally, proposed valuable implications in both theoretical and practical perspectives. Findings - As a result, we combined with the problems existing in cross-border e-commerce among Korea, China and Japan, this paper proposes a solution based on blockchain. On this basis, it constructs a cross-border e-commerce ecosystem among these three countries, including five systems. In addition, we discuss the main problems existing in the current blockchain, such as low transaction concurrency, security loopholes, and inconsistent standards, the corresponding countermeasures are proposed from the technical level, security level and industry standards. Originality/value - This study is the first to apply the blockchain technology to solve the cross-border e-commerce problems in Korea, China and Japan, which is of pioneering significance in both literature and practice. Block chain technology is in the ascendency. This study provides technical solutions for promoting the development of cross-border e-commerce import and export trade between Korea, China and Japan.

• Journal of the Korean Society of Systems Engineering
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• v.7 no.1
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• pp.53-56
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• 2011

Configuration management plays a key role in systems engineering process for any project from earlier stage of development. It consists of five major activities, ie., configuration management planing, configuration identification, configuration control, configuration status accounting and configuration verification and audit, and is essential to control system design, development and operation throughout entire life cycle of the system development. And it is directly associated with other part of systems engineering management process, ie., technical data management which provides traceability of important decisions and changes during development. In this paper, we describe how to apply CASE(Computer-aided Systems Engineering) tool-Cradle for the configuration management to achieve effectiveness of Technical Management process.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 2006.05a
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• pp.271-275
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• 2006

RFID(Radio Frequency Identification)기술은 초소형 IC 칩에 식별정보를 입력하고 무선주파수를 이용하여 사물, 동물, 사람 등을 인식, 추적, 관리할 수 있는 기술로서 미래 유비쿼터스 환경의 핵심 기술로 대두되고 있다. 본 연구에서는 를 기반으로 한 개별상품의 라이프사이클을 효율적으로 관리하기 위한 통합시스템 설계를 제안한다. 제안되는 통합 시스템은 개별상품의 라이프사이클(제조/물류/유통) 단계에서의 상품 Traceability와 Visibility를 제공하는 EPCglobal 네트워크 기반의 물류(유통), 금융 정보 통합 시스템으로서, 상품 정보 및 이력 데이터를 실시간으로 제공함으로써 Digital Manufacturing과 RTE(Real Time Enterprise)의 인프라를 제공하고, 기존 레거시 시스템(ERP, CRM, SCM)과의 효과적인 정보공유를 가능하게 할 것이다.

• Proceedings of the Korean Information Science Society Conference
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• 2005.11b
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• pp.466-468
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• 2005

임베디드 시스템은 특정 목적을 수행하기 위해 개발되는 컴퓨팅 시스템으로 최적화된 하드웨어 위에서 동작 가능한 소프트웨어로 구성된다. 임베디드 시스템은 개발 단계별로 여러 가지 설계 대안 중 최적의 설계를 선택하는 설계 결정이 이루어지는데 설계 결정 시에는 이에 대한 근거가 제시되어야 한다. 임베디드 시스템은 여러 유형의 제약사항 범위 안에서 개발되어야 하는 특징으로 인해 임베디드 시스템 개발 시에는 기능적 요구사항과 함께 비기능적 요구사항 역시 중요한 요소가 된다. 따라서 제약사항을 담고 있는 비기능적 요구사항은 설계 결정 시에 중요한 영향을 미친다. 그러므로 본 논문에서는 CMMI의 공학 프로세스 영역에 근거하여 임베디드 시스템의 개발주기를 요구사항 개발, 기술적 해결, 제품 통합 각 단계로 나눈 다음, 각 단계에서 이루어지는 설계 결정 활동을 비기능적 요구사항에 근거하여 분석하고자 한다. 이를 통해 임베디드 시스템 개발 단계별 설계 결정에 대한 추적성을 제공하고자 한다.

• Proceedings of the KIEE Conference
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• 2006.07b
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• pp.1095-1096
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• 2006

Configuration management plays a key role in systems engineering process for any project from earlier stage of development. It consists of five major activities, ie., configuration management planing, configuration identification, configuration control, configuration status accounting and configuration verification and audit, and is essential to control system design development and operation throughout entire life cycle of the system development. And it is directly associated with other part of systems engineering management, ie., technical data management which provides traceability of important decisions and changes during development. In this paper, we describe how to apply CASE(Computer-aided Systems Engineering) tool-Cradle for the configuration management to achieve effectiveness of City Train Standard Specification Management process.

• Proceedings of the KSR Conference
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• 2002.10a
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• pp.382-386
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• 2002

The utilization of System Design Data(SDD) based upon Model Based Systems Engineering(MBSE) process is as important as the building of them. This paper describes the development and the utilization of a report template which can extract and modify data we need from SDD. A report template is defined as a set of elements in the Reporting Facility and is created by placing a sequence of Reporting elements onto a Behavior Diagram-like structure called a ReportNet. We focus on the development of a report template to secure and validate requirements traceability.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.18 no.6B
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• pp.259-269
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• 2008

Applying Varying Pseudonym (VP) to design of Radio Frequency Identification (RFID) authentication protocol outperforms the other existing approaches in several respects. However, this approach is prone to the well-known denial-ofservice (DOS) attack. In this paper, we examine the de-synchronization problems of VP-based RFID authentication protocols, and propose effective solutions to eliminate such weaknesses. We shall show that the proposed solutions indeed improve the security for these protocols, and moreover, these solutions require 0(1) computational cost for identitying a tag and 0(1) key space on the tag. These excellent performances make them very attractive to many RFID applications.

• Proceedings of the Korea Information Processing Society Conference
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• 2021.05a
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• pp.33-36
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• 2021

Corona 19 minimizes face-to-face contact, and online untact platforms are emerging in the medical sector. However, there are potential risks of medicine expiration, medicine misuse, and responsible materials management for secure delivery. In this paper, we investigate three key functional requirements for online pharmacy, and design the blockchain based online pharmacy to meet the requirements. To protect the patient's privacy and to ensure tamper-free traceability, we incorporate the multi-level access authentication scheme for each participant (governments, medical circles, and patients). We show that our system guarantees patient's privacy without further system modification.

• Journal of Information Processing Systems
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• v.18 no.6
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• pp.763-769
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• 2022

Transportation allocation requires information such as storage location and order information. In order to guarantee the safe transmission and real-time sharing of information in all links, an intelligent transportation control system based on blockchain technology is designed. Firstly, the technical architecture of intelligent transportation information traceability blockchain and the overall architecture of intelligent transportation control system were designed. Secondly, the transportation management demand module and storage demand management module were designed, and the control process of each module was given. Then, the type of intelligent transportation vehicle was defined, the objective function of intelligent transportation control was designed, and the objective function of intelligent transportation control was constructed. Finally, the intelligent transportation control was realized by genetic algorithm. It was found that when the transportation order volume was 50×103, and the CPU occupancy of the designed system was only 11.8%. The reliability attenuation of the code deletion scheme was lower, indicating better performance of the designed system.