• The Journal of Korean Institute of Communications and Information Sciences
• /
• v.35 no.9B
• /
• pp.1342-1349
• /
• 2010

Full-mesh IPSec tunnels, which constitute a black network, are required so that the dynamically changing PT (Plain Text) networks can be reachable across the black network in military environments. In the secure and mobile black networks, dynamically re-configuring IPSec tunnels and security policy database (SPD) is very difficult to manage. In this paper, for the purpose of solving mobility and security issues in military networks, we suggest the relating main technologies in association with DMIDP (Dynamic Multicast-based IPSec Discovery Protocol) based on existing IPSec ESP (Encapsulating Security Payload) tunnels and IPSec key managements. We investigate the main parameters of the proposed DMIDP techniques and their operational schemes which have effects on mobility and analyze operational effectivemess of the DMIDP with proposed parameters.

• Convergence Security Journal
• /
• v.11 no.3
• /
• pp.25-30
• /
• 2011

WEP is proposed networks dominate the market in the future wireless LAN encryption and authentication features to provide a secure protocol. However, WEP does not suggest a specific measures when generating the initial values used for the creation cipher text, the initial value problem because tile size and no-encryption if you have been raised about the safety issue. In this paper pointed out the vulnerabilities of WEP and the proposed improvement plan for this improvement was proposed based on the initial value to avoid re-creating the initial value of the system and using a block cipher in CBC mode for confidentiality and to provide mutual authentication New WLAN security model was proposed.

• Convergence Security Journal
• /
• v.8 no.4
• /
• pp.199-207
• /
• 2008

Web service has many security weekness because it is exposure to outside and connected with various application. Especially, as new technology developed new type of security weakness has occured consistently. In this paper, we construct webserver and honeyweb by using virtual reality on a basis these weakness. So it cannot be influenced by any attack to the hardware of the system. By using honey web, it disigned and embodied web server secutiry system to collect the data about new attack. Through this, it can provide proper secutiry in a web environment of mutual communication.

• The Journal of Korean Institute of Communications and Information Sciences
• /
• v.28 no.4C
• /
• pp.356-364
• /
• 2003

Presently, etwork is being in the existence as an influence can not be neglected. This rapid progress of network has gone with development of mobile network and information communication. But the development of network can generate serous social problems. So, it is highly required to control security of network. These problems related security will be developed and keep up to confront with anti-security part such as hacking, cracking. There's no way to preserve security from hacker or cracker without delvelopping new cryptographic algorithm or keeping the state of anti-cryptanalysis in a prescribed time by means of extendig key-length. Worldwidely, many researchers for network security are trying to handle these problems. In this paper, we proposed a new block cryptosystem. The Block cipher-Secure Electronic Xenogenesis Algorithm(B-SEXA) which is capable to cipher regardless of key distribution or key-length for these definite problem is proposed and designed in hardware. B-SEXA increase secret level from using a MDP and MLP in maximum is proposed to prevent cryptograpy analysis. The designed B-SEXA in this paper performed synthesization and simulation using Synopsys Vwe. 1999.10 and VHDL.

• Journal of The Institute of Information and Telecommunication Facilities Engineering
• /
• v.1 no.2
• /
• pp.30-42
• /
• 2002

UPnP(Universal Plug and Play) is commercial product for the first time in home network middlewares, but it has problem that it has no security standards in UPnP specification. In this paper, we present UPnP security model. It is based on XML Signature of XML Security. It provides UPnP with secure services which are device control message authentication and user access level control. It is independent of UPnP modules and has mobility of secure service modules for non secure ability user part. We conclude this paper with an example of applying UPnP Security model to the UPnP audio device control and an test example.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
• /
• v.9 no.1
• /
• pp.848-851
• /
• 2005

The BcN is applying from public networks to local networks and each terminal step by step until 2007. By IPv6 network introduction, IP address lack problem can be solved. However, the threats that network attacks of another method can be caused with new problem of network security in IPv6 networks. In this paper, we suggest the traffic analysis tool which analyze IPv6 traffic efficiently to detect/response network attack in IPv6 environment. The implemented IPv6 traffic analysis tool uses IPv6 header to analyze traffic and detect network attacks. Also, we also propose detection algorithm to detect network attacks in IPv6 networks.

• The Journal of Korean Institute of Communications and Information Sciences
• /
• v.29 no.12C
• /
• pp.1707-1721
• /
• 2004

In this paper, we propose a distributed communication model of intrusion detection system(IDS) in which integrated security management at networks level is possible, model it at a security node and distributed system levels, design and implement a simulator. At the node level, we evaluate the transfer capability of alert message based on the analysis of giga-bit security node architecture which performs hardware-based intrusion detection. At the distributed system level, we perform the evaluation of transfer capability of detection and alert informations between components of distributed IDS. In the proposed model, we carry out the performance evaluation considering decision factors of communication mechanism and present the results in order to gain some quantitative understanding of the system.

• Proceedings of the Korean Information Science Society Conference
• /
• 2001.10a
• /
• pp.700-702
• /
• 2001

As computers and networks become popular, distributing information on the Interment is common in our daily life. Also, the explosion of the Internet, of wireless digital communication and data exchange on Internet has rapidly changed the way we connect with other people. But secure mall is gamins popularity abroad and domestically because of their nature of prodding security. That is. it has been used a variety of fields such as general mail and e-mail for advertisement But, As the data transmitted on network can be easily opened or forged with simple operations. Most of existing e-mall system don't have any security on the transmitted information. Thus, security mail system need to provide security including message encryption, content integrity, message origin authentication, and non-repudiation. In this paper, we design implement secure mall system with non-repudiation service and encryption capability to provide services for certification of delivery and certification of content as well as the basic security services.

• Annual Conference of KIPS
• /
• 2015.04a
• /
• pp.428-430
• /
• 2015

보안은 오직 기술을 관리하는 것이 아닌 사람관리, 조직관리, 경영관리이다. 그 중에서도 인적자원은 모든 산업에서 가장 중요한 자원임과 동시에 보안의 측면에서 볼 때 가장 통제해야 하는 존재이다. 이는 산업보안에서 가장 큰 이슈인 산업기술 기밀 유출이 주로 전 현직 임직원 및 협력업체 직원 등 인적자원을 통했기 때문이다. 미래 산업의 중심이 될 IoT환경에서는 산업기술이 핵심자산이므로 이에 더 주목해야 할 필요가 있다. 이처럼 인적자원에 대한 통제와 관리가 산업보안에서 중요한 의미를 갖는 것에 비해 기존의 보안관리체계의 통제항목은 대부분 IT적인 부분에 치중되어있다. 또한, 체계적인 운영이 부족하고, 산업스파이, 정보절취 등 다양한 위험요소가 존재한다. 특히, 인적자원은 완벽한 예측이 불가능하므로 위험을 최소화하는 방법을 고안해 대는 것에 유념하여 IoT환경에서의 인간중심적인 보안관리체계 구축해야한다. 이를 위해 기존의 정보보호 관리체계 분석을 통하여, 기존의 인적보안 지침들의 적합성을 따져 우선순위를 적용하여 효율적인 인적자원관리 방법론을 설계하였다. 본 연구결과는 보유자원을 가장 효율적으로 활용하여, 그 조직에 적합한 보안체계를 구축하는데 도움이 될 것으로 기대된다.

• Annual Conference of KIPS
• /
• 2015.04a
• /
• pp.399-401
• /
• 2015

디지털 포렌식은 그동안 보안의 차선이 되어왔다. 디지털 포렌식은 늘 보안 사건이 일어난 후에만 사용되는 것으로 인식되었다. 산업의 규모가 커지고 보안의 범위가 넓어지면서 보안은 자본주의 사회에서 필수가 되었다. 이에 따라 디지털 포렌식의 역할은 중요해졌고 관심도 늘어나게 되었다. 하지만 보안 사건이 일어난 후, 그 뒤를 따라가는 것은 힘들고 한계가 있다. 특히 정보는 한번 새어나가면 걷잡을 수 없고, 경제적 손실도 막대하다. 또한 디지털 포렌식을 통해 증거를 수집한다고 해도 디지털 정보는 특성상 조작하기가 쉽기 때문에 법원에서 증거로 인정받기 위해서는 매우 까다로운 절차를 거쳐야 한다. 아직까지 한국에서는 디지털 증거를 어디까지 인정해야 하는지에 대한 명확한 기준이 없기 때문에 까다로운 절차를 거쳤다고 해서 증거로 인정받는다는 보장이 없다. 따라서 보안에 대해서는 예방하는 것이 최선이고 필수이다. 이 논문에서는 그동안 차선으로 인식되었던 디지털 포렌식 도구를 이용하여 보안 사건보다 한 발짝 앞서 보안을 관리하는 방법에 대해 검토하고자 한다.