• Proceedings of the Korea Multimedia Society Conference
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• 2003.11b
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• pp.794-797
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• 2003

인터넷이 보편화되고 네트워크 속도가 빨라짐에 따라 사람들은 자신의 자료를 언제 어디서나 사용하기를 원하고 있다. 이를 해결하기 위한 방안으로 인터넷을 기반으로 하는 개인용 스토리지가 개발 되고 있다. 본 논문에서는 인터넷을 기반으로 하는 웹 스토리지 시스템을 제안한다. 대형 DB를 이용하여 사용자 계정관리와 파일 리스트 관리를 하는 설계방법과 비교하고 인증만 DB서버로 관리 하고 네트워크 스토리지의 특징을 살려 스토리지 서버에서 사용자, 용량, 그룹관리를 하는 시스템 설계를 한다.

• Proceedings of the Korean Society for Information Management Conference
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• 2005.08a
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• pp.41-46
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• 2005

본 연구는 대학의 다양한 정보시스템을 단일의 통합인증을 통하여 통합검색을 제공하고 학내구성원 그룹별에 따라 개별화 맞춤형 정보를 제공하는 대학 종합정보서비스의 포털 구축을 제안하였다. 특히 웹 기반 하에 대학정보화의 종합정보서비스와 단일 게이트를 수용하는 대학 종합정보서비스의 포털 모형으로 구축방안을 제시하였다.

• Proceedings of the Korean Information Science Society Conference
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• 2003.04d
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• pp.391-393
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• 2003

대학 전산망은 다양한 종류의 하드웨어와 소프트웨어로 이루어진 대표적인 이질망이며 , 다양한 성향을 갖는 사용자들이 공존하는 환경이므로 망 계층 보안 서비스의 도입이 필연적이다. 본 논문에서는 대학 전산망에서 IPSec을 도입하는데 필수적인 IPSec 키 관리 시스템을 제시한다. 제안된 IPSec 키 관리 시스템은 IPSec과 PKIX가 결합된 형태로 구성되며 , 각 호스트는 부팅 과정에서 IP 주소를 결정 한 후, 망 계층 서버에 자신의 IP 주소와 공개키를 등록하여 망 계층 보안 서비스를 제공하도록 한다. 또한 망 계층 인증 서버는 웹 인터페이스를 통해 망 관리자가 전체 구성원의 키를 관리하는 인터페이스를 제공한다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2024.01a
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• pp.243-246
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• 2024

본 논문에서는 Spring Boot와 Spring Security 프레임워크를 기반으로 개발된 웹 애플리케이션을 소개한다. OAuth2 Client를 활용한 사용자 인증 절차를 통해 쉽게 접근 가능하며 다양한 후기를 주고 받을 수 있는 커뮤니티 공간과 한국관광공사의 Open Rest API를 활용한 다양한 관광지의 정보를 무작위, 키워드, 지역별로 검색하여 찾아보기 힘든 다양한 정보를 한곳에서 쉽게 확인할 수 있다.

• Journal of Broadcast Engineering
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• v.14 no.4
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• pp.463-474
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• 2009

By employing the subscriber concept in broadcasting services, IPTV (Internet Protocol Television) operators provide various grades of services to subscribers based on the billing level of the subscribers. With the income from subscribers for a basis, IPTV operators plan to provide high quality services. Since Web browser-based IPTV provides T-commerce and E-commerce services as well as television services, users may frequently visit other service domains to buy goods or content. To provide the user with charged or private services, these service domains request authentication of user. The existing authentication system is not appropriate for the IPTV service environment because the environment unavoidably forces the user to cross from one authentication-based service domain to another. Single sign-on provides a user with transparent authentication services by enabling an authenticated user to move between authentication-based service domains without any re-authentication. Like this distributed environment, since the IPTV service environment also provides a variety of authentication-based services, transparent authentication service needs to be provided to subscribers who want to access charged or private services. In this paper, we propose a new user authentication scheme for the IPTV environment. This scheme integrates the Security Assertion Markup Language (SAML), which is a standard for XML-based single sign on. We validate this scheme using a simple use case scenario.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.35 no.3B
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• pp.503-516
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• 2010

In this paper, we propose the converged profile and authentication scheme for supporting converged media services of broadcasting & communications convergence in fixed mobile convergence networks. The proposed scheme supports the management of access, service, mobility and IPTV profiles on subscriber and a function of open API(Application Program Interface) for providing the subscriber profile for the third party service provider with the PUSH/PULL method. The open API is based on a web service and a REST(Representational State Transfer) and provides various services for the third party service provider with ease. In addition, the proposed scheme supports a function of SSO(Single Sign-on). After user succeeded in establishing an access connection, user can sustain the same authentication state with this function although connected access network is changed or IMS(IP Multimedia Subsystem) service network is attached. We evaluate and analyze the performance of the proposed scheme through the implementation of CUPS(Converged User Profile Server) system test-bed.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.34 no.4B
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• pp.377-386
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• 2009

IPTV technology for providing multimedia content with high-speed is the network which combines existing network, multimedia and internet technology etc. But internet, broadcasting and web technologies which is now being used is not optimized to IPTV because the security problem between user who gets content service through mobile units and content server is not guaranteed. This paper proposes user certification mechanism between mobile device and content server to receive the service which the user for the content chooses by mobile device safely. The proposed mechanism uses the random number which user creates and certification token for preventing illegal user who uses other's service that already paid. Also the proposed protocol encrypts the delicate data like user's information or profile using shared-key between java card attached on user's mobile device and grant sewer and then prevents reply attack which happens often in wireless section and man-in-the-middle attack by MAC.

• Journal of Korean Library and Information Science Society
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• v.41 no.1
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• pp.295-318
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• 2010

Recently a reading education system has been developed to manage the accumulated reading activities and past records of individuals under the web environment using computers. And the reading education system, where we can have comprehensive reading education, has been developed and been applied to schools. The reading records in the reading education system can contribute to the improvement of reading activities and reading comprehension, the extension of thinking ability, and the cultivation of insight and character of the readers. The system will provide basic data for reading education for the teachers. The reading education system will accumulate the reading records of individuals. This system is not restricted by time and space. Also the system can support the reading education of children and students effectively. The menu of the reading education system is composed of a test of reading level, reading materials, activities after reading, reading certification, reading record management and instruction of teachers.

• Proceedings of the Korea Information Assurance Society Conference
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• 2004.05a
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• pp.297-302
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• 2004

Internet becomes absolutely necessary tools due to rapid progress of information technology. Educational correspondence abount an age of information demand is a education focused on a learner and remote education based on information technology. WBI(Web Based Instruction) is a formation that remotly educate a learner using web, possible mutual reaction between instructor and learner, submint various studying material, has a good point to overcome spatial restriction. Internal and external standardization working is accelerated and recently XML security studies are activated using XML which is next generation web standard document format. And XML electronic signature raise interworking between digital signature systems used by various field of using XML document. Using these merit and complementing defect are main contents that users have to pay about Certification service to get CA certificate from 2004 june. This paper propose multiplex Certification remote education agent system using XML digital signature to satisfy security requirement.

• Convergence Security Journal
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• v.5 no.1
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• pp.19-27
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• 2005

This paper presents the content regarding electronic medical examination chart and data processing for efficient medical examination and fast treatment by realizing remote medical examination system of mutual conversation type among 3 parties(patient, doctor, pharmacist) on internet base, and establishment of database enabled system integration for efficient data processing in both on-line and off-line mode by interconnecting ASP and SQL on IIS 4.0 web server, consultation between patient and doctor, medical examination on off-line mode, transmission of prescription sheet to the pharmacist designated by patient, preparation of medicine, semieternal storage of medical examination data owing to storage and check of medical examination data, more accurate medical examination and prescription using this medical examination data by patient and doctor, and so on. And, data processing between doctor and pharmacist is differently performed based on class such as general member and charge member, and service access right pursuant to this is endowed, so that certification of each member must follow by all means.