• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2003년도 ICCAS
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• pp.2097-2100
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• 2003

Many studies have been done on secure operating system using secure kernel that has various access control policies for system security. Secure kernel can protect user or system data from unauthorized and/or illegal accesses by applying various access control policies like DAC(Discretionary Access Control), MAC(Mandatory Access Control), RBAC(Role Based Access Control), and so on. But, even if secure operating system is running under various access control policies, network traffic among these secure operating systems can be captured and exposed easily by network monitoring tools like packet sniffer if there is no protection policy for network traffic among secure operating systems. For this reason, protection for data within network traffic is as important as protection for data within local system. In this paper, we propose a secure operating system trusted channel, SOSTC, as a prototype of a simple secure network protocol that can protect network traffic among secure operating systems and can transfer security information of the subject. It is significant that SOSTC can be used to extend a security range of secure operating system to the network environment.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2005년도 ICCAS
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• pp.1594-1597
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• 2005

A rapid development and a wide use of the Internet have expanded a network environment. Further, the network environment has become more complex due to a simple and convenient network connection and various services of the Internet. However, the Internet has been constantly exposed to the danger of various network attacks such as a virus, a hacking, a system intrusion, a system manager authority acquisition, an intrusion cover-up and the like. As a result, a network security technology such as a virus vaccine, a firewall, an integrated security management, an intrusion detection system, and the like are required in order to handle the security problems of Internet. Accordingly, a router, which is a key component of the Internet, controls a data packet flow in a network and determines an optimal path thereof so as to reach an appropriate destination. An error of the router or an attack against the router can damage an entire network. This paper relates to a method for RSMS (router security management system) for secure networking based on a security policy. Security router provides functions of a packet filtering, an authentication, an access control, an intrusion analysis and an audit trail in a kernel region. Security policy has the definition of security function against a network intrusion.

• 융합보안논문지
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• 제9권2호
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• pp.33-39
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• 2009

네트워크 보안시스템을 단일 요소로 구분하여 점검하고 있는 현실의 문제점을 개선하기 위해 본 논문은 네트워크 보안시스템 점검은 취약성을 찾는 것이 아니라, 네트워크 보안시스템을 이루는 각 보안장비가 유기적으로 잘 작동하는지 종합적으로 점검하는 것임에 착안 네트워크 보안시스템을 점검하는 자동화 방법을 제안하고 이를 구현하였다.

• 한국정보과학회논문지:정보통신
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• 제30권6호
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• pp.776-786
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• 2003

보안평가 시스템은 다양한 요소로 구성된 대규모 네트워크 도메인 전체의 보안성을 평가하고 이를 바탕으로 보안 관리자 혹은 보안관리 시스템이 네트워크 보안관리를 수행하는데 필요한 의사결정을 지원하는 시스템이다. 이 시스템은 보안상 취약점들로 인한 공격을 방지하기 위해 어떻게 네트워크의 보안 관련 설정을 해주어야 하는지에 관한 의사결정을 지원해 준다. 보안평가 시스템은 네트워크의 “현재 상태”를 분석하고 공격 가능성을 찾아내어 불법적인 침해 행위를 사전에 예방하도록 보안관리의 의사결정을 지원해 준다. 본 논문에서는 다양한 요소로 구성된 대규모 네트워크의 보안성 평가를 자동화하고 침해사고 예방을 위해 보안관리의 의사결정을 도와주는 보안평가 시스템에 대한 요구 사항을 분석하고 이를 반영한 보안평가 시스템을 설계한다.

• 한국군사과학기술학회지
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• 제12권5호
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• pp.609-614
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• 2009

In this paper, we have proposed a design for security network system passing through the non-security network which is commonly used for various networking services. Based on the security requirements which are assumed that the large classified data are bi-transmitted between a server and several terminals remotely located, some application methods of security techniques are suggested such as the network separation technique, the scale-down application technique of certification management system based on the PKI(Public Key Infrastructure), the double encryption application using the crypto-equipment and the asymmetric keys encryption algorithm, unrecoverable data deleting technique and system access control using USB device. It is expected that the application of this design technique for the security network causes to increase the efficiency of the existing network facilities and reduce the cost for developing and maintaining of new and traditional network security systems.

• 한국통신학회논문지
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• 제30권8B호
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• pp.525-534
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• 2005

본 논문에서는 정책 기반의 네트워크 관리 구조를 확장하여, 보안 네트워크의 구성의 자동화를 지원할 수 있는 보안 네트워크 관리 구조와 방법을 제안한다. 제안하는 구조 및 방법은 보안 관리 서버가 보안 시스템의 역할과 능력 그리고 보안 정책의 역할과 시간 정보를 기반으로 하여 보안 시스템이 필요로 하는 최적의 보안 정책을 자동 결정하고 보안 정책 룰을 가장 효과적이고 효율적으로 실행할 수 있는 보안 시스템을 자동 결정할 수 있게 한다 본 논문에서는 기존의 네트워크 시스템과 보안 시스템을 통합 제어할 수 있는 SNMP 프로토콜기반의 보안 네트워크 토폴러지 맵 자동 생성기도 제안한다. 본 논문에서 제안된 구조와 방법의 우수성을 보여주기 위하여 공격에 대한 자동 대응 기능을 시뮬레이션하고 그 성능을 평가한다.

• 디지털산업정보학회논문지
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• 제7권3호
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• pp.97-105
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• 2011

With the advancement of network, privacy information as well as confidential information that belongs to government and company are exposed to security incident like spreading viruses or DDoS attack. To prevent these security incident and protect information that belongs to government and company, Security system has developed such as antivirus, firewall, IPS, VPN, and other network security system. Network security systems should be selected based on purpose, usage and cost. Verification for network security product's basic features performed in a variety of ways at home and abroad, but consumers who buy these network security product, just rely on the information presented at companies. Therefore, common user doing self performance evaluation for perform Verification before buying network security product but these verification depends on inaccurate data which based on some user's criteria. On this paper, we designing methodology of network security system performance evaluation focused on Korean using other cases of performance evaluation.

• International Journal of Computer Science & Network Security
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• 제23권7호
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• pp.131-140
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• 2023

Network security situational awareness systems helps in better managing the security concerns of a network, by monitoring for any anomalies in the network connections and recommending remedial actions upon detecting an attack. An Intrusion Detection System helps in identifying the security concerns of a network, by monitoring for any anomalies in the network connections. We have proposed a CRF based IDS system using genetic search feature selection algorithm for network security situational awareness to detect any anomalies in the network. The conditional random fields being discriminative models are capable of directly modeling the conditional probabilities rather than joint probabilities there by achieving better classification accuracy. The genetic search feature selection algorithm is capable of identifying the optimal subset among the features based on the best population of features associated with the target class. The proposed system, when trained and tested on the bench mark NSL-KDD dataset exhibited higher accuracy in identifying an attack and also classifying the attack category.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2003년도 ICCAS
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• pp.2174-2177
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• 2003

Internet is exposed to network attacks as Internet has a security weakness. Network attacks which are virus, system intrusion, and deny of service, put Internet in the risk of hacking, so the damage of public organization and banking facilities are more increased. So, it is necessary that the security technologies about intrusion detection and controlling attacks minimize the damage of hacking. Router is the network device of managing traffic between Internets or Intranets. The damage of router attack causes the problem of the entire network. The security technology about router is necessary to defend Internet against network attacks. Router has the need of access control and security skills that prevent from illegal attacks. We developed integrated security management framework for secure networking and kernel-level security engine that filters the network packets, detects the network intrusion, and reports the network intrusion. The security engine on the router protects router or gateway from the network attacks and provides secure networking environments. It manages the network with security policy and handles the network attacks dynamically.

• International Journal of Contents
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• 제1권2호
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• pp.22-25
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• 2005

Enterprise security management system: Enterprise Security Management (EMS) is centralized integrated management of other kind of security solutions such as intrusion cutoff system, intrusion detection system and virtual private network. With the system, it is possible to establish security policies for entire IT system through interlocking of solutions. A security system of company network is progressing as a ESM(Enterprise Security Management) in existing security solution foundation. The establishment of the security policy is occupying very important area in ESM of the security system. We tried to analyze existing ESM system for this and designed security solution structure for enhancing the inside security. We applied implementing directly IDS system and tested. This test set the focus about inside security