• Journal of information and communication convergence engineering
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• 제6권2호
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• pp.177-181
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• 2008

The more improved the Internet and the information technology, the stronger cryptographic system is required which can satisfy the information security on the platform of personal hand-held devices or smart card system. This paper introduces a case study of designing an elliptic curve cryptographic processor of a high performance that can be suitably used in a wireless communicating device or in an embedded system. To design an efficient cryptographic system, we first analyzed the operation hierarchy of the elliptic curve cryptographic system and then implemented the system by adopting a serial cell multiplier and modified Euclid divider. Simulation result shows that the system was correctly designed and it can compute thousands of operations per a second. The operating frequency used in simulation is about 66MHz and gate counts are approximately 229,284.

• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2003년도 춘계학술발표논문집 (중)
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• pp.1333-1336
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• 2003

IMT-2000 상용화를 눈앞에 둔 시점에서 다양한 모바일 서비스들이 성장세를 보임에 따라 무선 인터넷 환경에서의 보안 문제가 큰 이슈로 대두되고 있다. 본 논문에서는 무선 인터넷상의 Data 전송에 쓰이는 보안 솔루션(WAP, ME, 1-Mode)을 비교 분석하며, End-To-End Security 문제를 해결할 수 있는 플렛폼을 제시한다. 제안된 모바일 인증 플렛폼은 표준화된 암호화 패킷을 사용함으로써 보다 높은 보안 수준을 제공하고 기존의 WAP의 WAP Gateway에서의 평문의 내용 유출을 막음으로서, 안전한 모바일 환경을 제공할 수 있는 가능성을 제시한다.

• 한국중재학회지:중재연구
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• 제18권3호
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• pp.91-116
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• 2008

E-Commerce constitutes an important part of all commercial activities. Online Alternative Dispute Resolution(Online ADR) or Online Dispute Resolution(ODR) is a new method of dispute, resolution which, is provided online. Most Online ADR services are alternatives to litigation. In this respect, they are the online transposition of the methods developed in the ADR movement such as negotiation, mediation and arbitration. But there are also online courts which are really normal courts in which the contesting parties communicate essentially online. This paper deals with the current operation of Online ADR and the ways to, activate it. They include (1) die establishment of legal stability regarding Online ADR, (2) the enhancement of system security in providing Online ADR services, (3) the introduction of Online ADR service platform for providing the various services through single window on a national, or global basis, and (4) the introduction of Online ADR online monitoring system for systematic dispute resolution services.

• 한국정보통신설비학회:학술대회논문집
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• 한국정보통신설비학회 2009년도 정보통신설비 학술대회
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• pp.219-220
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• 2009

Many surveillance cameras used in security system are controlled with RS-485 communication protocol. In this situation, if RS-485 connection can be replaced with wireless connection using sensor network technology, an installation will become ease because of no wired connection and also a deployment of cameras will become free. This paper explains about the design of wireless sensor node and the necessary implementation for an operation, which can be replacing RS-485 connection for the development of CCTV control system based on wireless sensor network. The hardware platform of sensor node was designed based on MicaZ and the software was developed based on TinyOS. To control surveillance cameras deployed on wide area, the supporting of multi-hop also was implemented. With the result of experiment deploying on real environment, it was revealed that the controller could control cameras quickly with wireless.

• 한국멀티미디어학회논문지
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• 제20권2호
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• pp.234-243
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• 2017

With the development of smartphone technologies enable photoplethysmogram (PPG) acquisition by camera and heart rate (HR) measurement. This papers presents improved algorithm to extract HR from PPG signal recorded by smartphone camera and to develop real-time PPG signal processing Android application. 400 video samples recorded by Samsung smartphone camera are imported as input data for further processing and evaluating algorithm on MATLAB. An optimized algorithm is developed and tested on Android platform with different kind of Samsung smartphones. To assess algorithm's performance, medical device Beurer BC08 is used as reference. According to related works, accuracy parameters includes 90% number of samples that has relative errors less than 5%, Person correlation (r) more than 0.9, and standard estimated error (SEE) less than 5 beats-per-minutes (bpm).

• 한국정밀공학회지
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• 제32권1호
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• pp.17-24
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• 2015

Smart factory requires 4 Zero factors including Zero Waiting-time, Zero Inventory, Zero Defect, Zero Down-time) that needs IT convergence for production resources of 4M1E(Man, Machine, Material, Method, Energy) in real time and event processing in all type of manufacturing enterprises. This paper will be explaining about core emerging production IT convergence technologies including cyber device security, 4M1E integration, real time event driven architecture, common platform of manufacturing standard applications, smart factory to-be model for small and medium manufacturing enterprises.

• 한국산업정보학회논문지
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• 제20권5호
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• pp.37-44
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• 2015

An antivirus is a widely used solution for detecting malicious softwares in client devices. The performance of antivirus solutions in the mobile client environment is critical due to its resource constrains. Many solutions light-weighting client's overhead in the mobile client environment have been developed. However, most solutions require platform modifications or software installations and it decreases their realizations in practice. In this paper, we propose a solution detecting malwares on networks using the Software Defined Network (SDN). Our main goal is designing a solution detecting malwares of mobile client without involving the client into the work. We contribute to provide a solution that does not require client-side installations or modifications and so is easily applicable in practice.

• 대한전기학회논문지:시스템및제어부문D
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• 제54권3호
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• pp.141-147
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• 2005

In the field of electrical industry, embedded computing environment including hardware and software is getting more important as the industry shifts to the knowledge-based one. Java could play a great role as bridging technology in such a transition because it provides a lot of benefits like dynamic application download, compatibility of cross platform, and its own security solution. However, the Java technology has a limitation of real-time problem when it is applied to the embedded computing system of the electrical industry. To solve the problem, a novel java-native combination model has been proposed and designed to a firmware level. This scheme has been employed in four kinds of control boards. The result shows that the proposed model has great potential to implement the real-time processing in control of the devices.

• 한국정보과학회:학술대회논문집
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• 한국정보과학회 2004년도 봄 학술발표논문집 Vol.31 No.1 (A)
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• pp.805-807
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• 2004

최근 IT 산업의 발전과 더불어, 리소스가 제한된 소형 기기들의 사용이 비약적으로 증가하고 있는 추세이다. 자바는 플랫폼 독립성(Platform Independency), 보안성(Security), 네트워크 이동성(Network Mobility) 등의 장점을 가지고 있어, 이러한 소형 기기들에 자바 환경을 적용하게 되면 여러 가지 이점을 가지게 된다. 임베디드 장치나 모바일 같은 제한된 리소스를 사용하는 기기들에는 SUN 사의 CLDC(Connected, Limited Device Configuration)에서 정의하고 있는 K 가상 머신(K Virtual Machine: KVM)을 탑재하여 사용하게 된다. 본 논문에서는 실시간 운영체제 iRTOS$^{TM}$와 KVM 을 탑재한 소형 기기에서 좀더 효율적으로 KVM 의 메모리를 관리하기 위한 Garbage Collection기법을 설계하고 구현한 내용을 설명한다.

• 전자통신동향분석
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• 제17권6호통권78호
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• pp.29-38
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• 2002

XML 전자문서는 전자상거래를 위한 전자문서의 표준으로 받아 들여지고 있으며 안전한 전자상거래를 위해서는 XML 정보보호가 무엇보다도 먼저 해결되어야 한다. 본 논문에서는 인터넷 상에서 XML을 기반으로 하는 전자문서 교환 시스템의 안전한 문서 교환을 위한 정보보호 서비스 구현을 소개한다. XML 기반 전자문서 교환 시스템은 주로 인터넷에서 상거래를 위해 사용자 인증, 데이터 무결성 보장, 송수신에 대한 부인 봉쇄 등 다양한 보안 기능에 대해 필요하다. 또한 본 논문은 이러한 보안 기능을 충족시키는 XML 기반 정보보호 서비스인 ESES(ETRI Secure E-commerce Services)를 제안한다. ESES는 XML 문서 뿐 아니라 전자상거래 시 교환되는 디지털 콘텐츠를 위한 보안 서비스 제공을 목적으로 하며, 자바기반의 암호 구조를 바탕으로 XML 기반 전자서명, XML 기반 암복호, XML 기반 키 복구, 인증서 처리 기능 등을 지원한다.