• Proceedings of the Korea Information Processing Society Conference
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• 2020.11a
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• pp.292-295
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• 2020

In the modern society, people can easily reach destination by using the rapidly developed public transportation services. Recently, location information is provided through the network, but this is useless to the weak people on transportation like the handicapped. This paper proposes a bus alert terminal system equipped with the arrival information of public buses based on location information and distance measurement sensor. By using this system, we look forward to providing more convenient and accessible services for the weak people on transportation.

• Journal of the Korean Society for Library and Information Science
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• v.57 no.3
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• pp.119-141
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• 2023

The COVID-19 pandemic has significantly changed the landscape of knowledge and information services that public libraries around the world have been providing since modern times. In particular, as social distancing has become routine, the contraction of cultural activities and the shift to online platforms have negatively impacted library visitation and use services, greatly reducing borrowing and reading, use of spaces and facilities, interlibrary loan services, program operations, and outreach services. Therefore, this study investigated and analyzed the current status of services provided by public libraries in Korea and abroad in response to COVID-19, and proposed practical ways to improve and expand services in response to COVID-19 based on the results of a survey of librarians' perceptions. Specifically, these include improving the online reservation system for reading and borrowing services and developing and providing various outreach services, acquiring and expanding electronic resources, expanding online program services (reading, culture, lifelong learning, etc.), strengthening library services for vulnerable populations, providing information portal services related to new infectious diseases, strengthening facilities and space provision services, preparing infectious disease response guidelines, and providing education and training to strengthen librarians' capabilities.

• Proceedings of the Korea Information Processing Society Conference
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• 2017.11a
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• pp.542-545
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• 2017

사회는 갈수록 첨단기기로 집약되는데 비해 노인계층의 첨단기기 접근성은 그의 복잡성으로 인해 매우 취약하다. 고령인구의 사회적 활동에 기본이 되는 이동 편의성에서 이러한 복잡성을 해소하고 안전을 제공하기위한 서비스를 고려한다.

• Proceedings of the Korea Information Processing Society Conference
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• 2010.04a
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• pp.739-742
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• 2010

본 논문은 국방 네트워크 환경측면에서 실 전략정보에 대한 접근/활용 범위가 확대되고, 정보의 신뢰성/가용성에 대한 중요도가 강조되고 있는 워게임 연동객체의 보안화 방안에 대해 기술한다. 연동객체는 HLA/RTI에서 시뮬레이션을 위한 페더레이터로 정의된다. RTI는 페더레이터간 정보교환, 접속 사양에 정의된 다양한 서비스를 제공하는 미들웨어이다. 정책을 기반으로 네트워크상에서 자원들에 대한 관리와 접근, 사용을 위한 다양한 기능과 안전하고 편리한 보안기능들이 널리 활용되고 있다. 본 논문에서는 RTI Security 인터페이스와 정책을 기반으로 한 자원접근 방법을 사용해서 페더레이터의 취약한 정보보호 기능을 강화하였다. RTI의 페더레이트 실 정보에 다계층 보안 수준을 적용하고 보안등급별로 필터링하여 연동객체 스스로가 정보를 보호(Self-protection)할 수 있도록 하는 환경을 구성하고 관리할 수 있는 시스템을 제안한다.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.10 no.7
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• pp.1229-1236
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• 2006

Group oriented multicast service is a prerequisite for the current application system for remote lecture and customer service. IP multicast is used to be generally accepted as an internet standard. IP multicast which is designed to support network based replication model can efficiently use host and network resource, however it has some weak points that it has to support IP multicast in the internet by adding multicast-capable internet infrastructure such as router and is vulnerable to security by using public IP address for group identifier. Therefore we propose the trigger based application level multicast model that can enhance both scalability and security by separating the functions, which send and receive message to solve these problems. Our suggested model is expected to ensure the promotion of quality of service and reliability.

• Journal of Internet Computing and Services
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• v.4 no.1
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• pp.19-25
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• 2003

Mobile IPv6 services exposes its vulnerability when a mobile node is roaming across the subnets which belongs to the different domains. The AAA Infrastructure Is strongly recommended when the ISPs need to authenticate the mobile user come from the different domains. In addition to the basic requirements for AAA service, the authentication latency and AAA message overhead should be minimized for contiguity of the service. This paper considers the roaming service with AAA infra structure in Mobile IPv6 and proposes the key distribution method to authenticate the mobile node with secure manner by reducing and optimizing the exchanged messages for AAA entities.

• Journal of the Korea Society for Simulation
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• v.24 no.1
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• pp.17-24
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• 2015

Smart grid is a modernized electrical grid that uses information and communication technologies to gather and act on information, such as information about the behaviors of suppliers and consumers, in an automated fashion to improve the efficiency, reliability, economics, and sustainability of the production and distribution of electricity. However, with the advent of cyber crime, there are also concerns on the security of the infrastructure, primarily that involving communications technologies. In this work, we make an in-depth investigation on the issue of security services and network loads on Smart grid. Through simulation, we analyze the relations between security services and network loads. The experimental results of this study will contribute toward designing an advanced Smart grid system that offers better quality of services. Also, the approach proposed in this study can be utilized to derive new and valuable insights in security aspects.

• Journal of KIISE:Information Networking
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• v.31 no.2
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• pp.207-216
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• 2004

IPsec protocol has been developed to provide security services to Internet. Recently IPsec is implemented on the various operating systems Hence, it is very important to evaluate the stability of the Ipsec protocol as well as other protocols that provide security services. However, there has been little effort to develop the tools that require to evaluate the stability of IPsec protocols. Therefore, in this paper, we develope the security requirements and suggest a security evaluation system for the Internet packet protection protocols that provide security services at the If level that can be used to check if the security protocols Provide the claimed services correctly This system can be used as debugging tool for developing IPsec based security system.

• Proceedings of the Korea Information Processing Society Conference
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• 2023.11a
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• pp.953-954
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• 2023

고령 사회로 접어들고 디지털 문맹이 대두되면서 기계 조작에 미숙한 정보취약계층이나 고령층들이 느끼는 불편함을 개선하고자 본 연구는 기존의 터치형 키오스크와는 차별된 음성/얼굴인식 기술을 활용한 키오스크 개발을 제안하며, 모든 연령층을 고려한 AI 기술의 활용으로 맞춤형 주문 서비스를 제공하여 고객 만족도를 높이고, 보다 쉽고 빠르게 주문할 수 있도록 한다.

• The KIPS Transactions:PartC
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• v.18C no.3
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• pp.127-134
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• 2011

Malicious botnet has been used for more malicious activities, such as DDoS attacks, sending spam messages, steal personal information, etc. To prevent this, many studies have been preceded. But malicious botnets have evolved and evaded detection systems. In particular, HTTP GET Request attack that exploits the vulnerability of the application layer is used. ALAB of ALADDIN proposed by ETRI is DDoS attack detection system that HTTP GET, Incomplete GET request flooding attack detection algorithm is applied. In this paper, we extend Incomplete GET detection algorithm of ALAB and derive the optimal configuration parameters to verify the validity of the algorithm ALAB by the study of the normal and attack packets.