• International Journal of Computer Science & Network Security
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• 제22권6호
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• pp.19-24
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• 2022

The main purpose of the study is to analyze the current state of the organization's information security system in the context of COVID-19 on the basis of public-private partnership. The development of public-private interaction in information security is one of the priorities of the state policy of many estates. Among the priorities of public-private partnership in cybersecurity and information security, there is an expansion of interaction between government agencies and private scientific institutions, public associations and volunteer organizations, including in training, as well as increasing the digital literacy of citizens and the security culture in cyberspace. As a result of the study, the foundations of the organization's information security system in the context of COVID 19 were formed on the basis of public-private partnership.

• International Journal of Computer Science & Network Security
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• 제21권8호
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• pp.111-118
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• 2021

Banking systems are sensitive to data privacy since users' data, if not well protected, may be used to perform fake transactions. Blockchains, public and private, are frequently used in such systems thanks to their efficiency and high security. Public blockchains fail to fully protect users' data, despite their power in the accuracy of the transactions. The private blockchain is better used to protect the privacy of the sensitive data. They are not open and they apply authorization to login into the blockchain. However, they have a lower security compared to public blockchain. We propose in this paper a hybrid public-private architecture that profits from network virtualization. The main novelty of this proposal is the use of network virtualization that helps to reduce the complexity and efficiency of the computations. Simulations have been conducted to evaluate the performance of the proposed solution. Findings prove the efficiency of the scheme in reducing complexity and enhancing data privacy by guarantee high security. The contribution conducted by this proposal is that the results are verified by the centralized controller that ensures a correct validation of the resulted blockchains. In addition, computation complexity is to be reduced by profiting from the cooperation performed by the virtual agents.

• 한국통신학회논문지
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• 제22권4호
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• pp.823-832
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• 1997

As enterprises use ATM networks for their private networks and as these private networks use public ATM networks for wide area communication, the need for the customers to be able to manage both private and public networks. Currently, some standardization work is being done towards providing this capability to customers. In this paper, we propose a new customer network management (CNM) system architecture for the management of both ATM a private network and a public network in a uniform way. The particular features of the proposed architecture lies in the efficient support of the complex hierarchial TMN manager-agent relationships at M3 and M4 interfaces, and the support of SNMP and CMIP integration which is necessary for the implementation of a CNM system. The TMN hierarchical many-to-many manager-agent relationships are realized by the utilization of CORBA-Based SMK (Shared Management Knowledge) implementation. We have also implemented the prototype of a ATM CNM system, and measures the performance for the demonstration of the suitability of the proposed architecture.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2016년도 추계학술대회
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• pp.326-328
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• 2016

초기의 해커들은 시스템 장애, 파괴가 목적이었으나 최근에는 기업들이 가지고 있는 고객의 개인 정보를 바이러스, 해킹과 같은 네트워크 침해를 통해 탈취하고, 이를 빌미로 돈을 요구하는 사이버 공격으로 성격이 바뀌고, 급증하여 피해가 커지고 있다. 이런 네트워크 침해를 대비하는 가장 효율적인 기술로써 VPN(Virtual Private Network)이 있다. VPN은 모든 사람들이 사용가능한 공중망(Public Network)을 내부의 사람들만 사용 가능한 사설망(Private Network)처럼 사용할 수 있도록 하는 기술이다. 본 논문에서는 리눅스(Linux) 서버 환경에 적용 가능한 VPN 기술과 관련 프로토콜을 분석하고 최적의 VPN을 제시하였다.

• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2000년도 추계학술발표논문집 (하)
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• pp.1185-1188
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• 2000

NAT로 운영되는 private network에서 IP 전화 시스템을 지원하기 위해서는 caller 단말, gatekeeper 서버, callee 단말간에 교환되는 H.225.0 메시지와 H.245 메시지의 NAT 주소 변환이 동적인 방법으로 투명하게 이루어져야한다. 이를 위하여 본 논문에서는 NAT 가 탑재된 라우터와 gatekeeper 서버를 연동하는 구조를 제안한다. 제안한 방식은 gatekeeper 와 NAT 라우터 사이에 주소 변환을 위한 정보교환용의 channel 을 여는 단계, gatekeeper 가 외부 단말로 향하는 H.225.0, H245 메시지를 받았을 때 NAT 라우터에게 private 주소 정보를 알려주는 단계, NAT 라우터가 gatekeeper로부터 private 주소정보를 받았을 때 public 주소 정보를 할당하여 gatekeeper에게 알려주는 단계, gatekeeper가 할당받은 public 주소 정보를 반영하여 외부 단말로 향하는 H.225.0, H.245 메시지를 재생성하는 단계 마지막으로 호가 종료될 때 gatekeeper 가 NAT 라우터로부터 할당받은 NAT 자원을 반환하는 단계로 구성된다. 이러한 연동 구조를 사용함으로써 NAT 환경에서 H.323 개체들간의 signalling 메시지와 음성 데이터의 송수신을 보장할 수 있다.

• International Journal of Computer Science & Network Security
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• 제22권9호
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• pp.83-88
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• 2022

The main purpose of the study is to determine the key aspects of the public-private partnership system in the context of the economic development of the state. At first glance, the mutually exclusive interests of the state and business do not contribute to the development of common and agreed development goals. At the same time, ignoring the versatility of interests and the aggravation of the discussion regarding the two sides under consideration, the study of the theoretical foundations of the interaction between the public and private sectors of the economy allows us to draw the following conclusion: world economic theory from classical political economy to new institutionalism has a clear structured position on the ancient historical depth of existence of the form of partnerships Based on the results of the study, the main elements of the public-private partnership system in the context of the economic development of the state were identified.

• 대한전기학회논문지:시스템및제어부문D
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• 제53권9호
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• pp.638-643
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• 2004

Middleware enables different networking devices and protocols to inter-operate in ubiquitous home network environments. The UPnP(Universal Plug and Play) middleware, which runs on a PC and is based on the IPv4 protocol, has attracted much interest in the field of home network research since it has versatility The UPnP, however, cannot be easily accessed via the public Internet since the UPnP devices that provide services and the Control Points that control the devices are configured with non-routable local private or Auto IP networks. The critical question is how to access UPnP network via the public Internet. The purpose of this paper is to deal with the non-routability problem in local private and Auto IP networks by improving the conventional Control Point used in UPnP middleware-based home networks. For this purpose, this paper proposes an improved Control Point for accessing and controlling the home network from remote sites via the public Internet, by adding a web server to the conventional Control Point. The improved Control Point is implemented in an embedded GNU/Linux system running on an ARM9 platform. Also this paper implements the security of the home network system based on the UPnP (Universal Plug and Play), adding VPN (Virtual Private Network) router that uses the IPsec to the home network system which is consisted of the ARM9 and the Embedded Linux.

• Journal of Information Processing Systems
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• 제17권2호
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• pp.284-296
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• 2021

The cloud has already become the core infrastructure of information systems, and government institutions are rapidly migrating information systems to the cloud. Government institutions in several countries use private clouds in their closed networks. However, because of the advantages of public clouds over private clouds, the demand for public clouds is increasing, and government institutions are expected to gradually switch to public clouds. When all data from government institutions are managed in the public cloud, the biggest concern for government institutions is the leakage of confidential data. The public-private-partnership (PPP) cloud provides a solution to this problem. PPP cloud is a form participation in a public cloud infrastructure and the building of a closed network data center. The PPP cloud prevents confidential data leakage and leverages the benefits of the public cloud to build a cloud quickly and easily maintain the cloud. In this paper, based on the case of the PPP cloud applied to the Korean government, the concept, architecture, operation model, and contract method of the PPP cloud are presented.

• 대한안전경영과학회지
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• 제13권2호
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• pp.43-49
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• 2011

New governance in the area of disaster management(New Governance) of the Safety Building in the form of public-private network as required in this era, SWOT can provide a strategic way to build public-private partnership recognized the necessity for a more efficient way. Between government agencies, private organizations and government and private organizations for the network between the systematic approach based on mutual trust, and participation by the activation of the meaning of seeing places studied. Partnership for Disaster Management as a result of the settlement than if the existing disaster management system for disaster response system more effective and efficient functioning in reducing human and material damage is expected to contribute are getting out.

• 한국산학기술학회:학술대회논문집
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• 한국산학기술학회 2009년도 춘계학술발표논문집
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• pp.696-699
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• 2009

A VPN is a private network that uses a public network to connect remote sites or users together. As its popularity grows, companies, organization and even the government turned to it as a means of extending their own networks. To setup a Virtual Private a proper IP VPN Architecture must first be selected. In this paper, the types of IP Virtual Private Network Architecture like the MPLS-Based, IPSec-Based and the SSL/TLS-Based are discussed and compared. The comparison may serve as a guide for selecting the proper IP Virtual Private Network Architecture that is suitable for the company's needs.