• 제어로봇시스템학회:학술대회논문집
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• 2005.06a
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• pp.1602-1605
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• 2005

An audit tracer is one of the last ways to defend an attack for network equipments. Firewall and IDS which block off an attack in advance are active way and audit tracing is passive way which analogizes a type and a situation of an attack from log after an attack. This paper explains importance of audit trace function in network equipment for security and defines events which we must leave by security audit log. We design and implement security audit system for secure router. This paper explains the reason why we separate general audit log and security audit log.

• Proceedings of the Korea Information Processing Society Conference
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• 2016.10a
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• pp.189-190
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• 2016

요즘 사이버 공격이 많이 발생함에 따라 기존의 디지털 포렌식 뿐만 아니라 네트워크 트래픽을 수집해서 사이버 공격을 분석하는 네트워크 포렌식에 대한 연구가 많이 수행되고 있다. 그러나 네트워크 포렌식을 수행하기 위해서는 여러가지 어려움이 존재한다. 이러한 문제를 해결하기 위하여 우리는 이 논문에서 네트워크 악성행위를 분석하기 위한 시스템 및 방법을 제안한다.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.3 no.2
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• pp.195-208
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• 2009

In this paper, we introduce a grid-based key pre-distribution scheme in wireless sensor networks, which aims to improve the connectivity and resiliency while maintaining a reasonable overhead. We consider simplification of the key establishment logic and enhancement of the connectivity via plat polynomial assignment on a three-dimensional grid for node allocation and keying material assignment. We demonstrate that our scheme results in improvements via a detailed discussion on the connectivity, resource usage, security features and resiliency. A comparison with other relevant works from the literature along with a demonstrated implementation on typical sensor nodes shows the feasibility of the introduced scheme and its applicability for large networks.

• Information Systems Review
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• v.21 no.3
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• pp.49-61
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• 2019

As the number of security incidents and damages increase steadily, interest in the security of society is growing, and the amount of academic interest and research is steadily increasing. However, despite these concerns and the quantitative increase in research, the terms 'security' and 'safety' have been mixed and studies have been conducted without the conceptual definition of various security terms being clearly defined. As a result, various forms of security concepts based on ICT environments have been misused. Therefore, we tried to derive the consensus of experts among the various security terms which are mixed in this study, and to summarize the concepts based on the analysis of domestic and foreign documents based on the concept of the terms. Through this research, we intend to contribute to the establishment of the academic identity of security by preventing related mistakes caused by the mixed use of terminology.

• Proceedings of the Korea Information Processing Society Conference
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• 2023.11a
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• pp.1177-1178
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• 2023

드론은 초기에 주로 군사적 목적으로 사용되었으나, ICT 기술이 발전함에 따라 다양한 산업 서비스에 활용되고 있다. 그러나 드론이 네트워크에 연결됨으로써 많은 보안위협과 취약점에 노출되었으며, 이는 드론 탈취, 정보유출, 서비스 장애 등의 심각한 피해를 야기할 수 있다. 따라서, 본 논문에서는 기존 드론의 보안위협 뿐만 아니라 다가올 양자시대의 보안위협에 대비하여 안전한 드론 서비스를 제공할 수 있는 PQC 기반 보안채널 통신기술을 제안하고 구현한다.

• Asia pacific journal of information systems
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• v.21 no.3
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• pp.51-69
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• 2011

Security has been considered one of the most critical issues for managing IT resources in many organizations. Despite a growing interest and extensive research on security at various levels, little research has focused on the comparison of security knowledge levels between different cultures. The current study investigates and compares the security knowledge level between Korea and the U.S. Based on the literature review of spyware, Hofstede's cultural dimensions, and security knowledge, this study identifies three constructs (i.e., security familiarity, spyware awareness, and spyware knowledge) to examine the difference of security knowledge levels between Korea and the U.S. Six hundred ninety-six respondents from Korea and the U.S. participated in the survey, and an in-depth analysis based on analysis of covariance (ANCOVA) was carried out. The results show that the levels of security familiarity, spyware awareness, and spyware knowledge are significantly lower in Korea than in the U.S., as expected. These findings present a significant association between national culture and security knowledge, and the degree of individualism (or collectivism) plays an especially critical role in the perception of security. A number of implications for academia and practitioners emerge. Limitations and future research directions are discussed in the conclusion.

• International Journal of Computer Science & Network Security
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• v.23 no.10
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• pp.107-114
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• 2023

The study provides the identification of vulnerabilities in the security issues by Wireless Network. To achieve it the research focus on packet flow analysis, end to end data communication, and the security challenges (Cybercrime, insider threat, attackers, hactivist, malware and Ransomware). To solve this I have used the systematic literature review mechanisms and demonstrative tool namely Wireshark network analyzer. The practical demonstration identifies the packet flow, packet length time, data flow statistics, end- to- end packet flow, reached and lost packets in the network and input/output packet statics graphs. Then, I have developed the proposed model that used to secure the Wireless network solution and prevention vulnerabilities of the network security challenges. And applying the model that used to investigate the security challenges and vulnerabilities of cloud computing services is used to fulfill the network security goals in Wireless network. Finally the research provides the model that investigate the security challenges and vulnerabilities of cloud computing services in wireless networks

• Convergence Security Journal
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• v.15 no.6_1
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• pp.69-78
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• 2015

Methods that industrial spies use to smuggle core technology out are becoming more intelligent, technological, and complex, thus resulting in more serious damages. In particular, defense industries in which involve national core technology as well as institutions including labor force are industries that are in a greater need of the convergence security. Defense Industry develops, experiments, and produces defense security supplies for national security protection. Defense industry involves a number of security elements such as military secret, industrial secret, core technology labor force, defense industry supply, critical national facility, and information communication system. Defense industry security is a complex of military security and industrial security which is convergence security that integrates all security elements of defense industry. Therefore, defense industry security is a typical ideal model for convergence security. Research on defense industry security is relatively insufficient compared to research of security in other industrial fields. In order to prevent core technology of denfese industry from leaking and to protect technical professionals and institutions, research and action on defense industry security from convergence security perspective are therefore essential at this point of time.

• ETRI Journal
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• v.29 no.3
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• pp.399-401
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• 2007

With a growing emphasis on human identification, iris recognition has recently received increasing attention. Iris recognition includes eye imaging, iris segmentation, verification, and so on. In this letter, we propose a novel and efficient iris recognition method which employs a cumulative-sum-based grey change analysis. Experimental results demonstrate that the proposed method can be used for human identification in efficient manner.

• Journal of Communications and Networks
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• v.11 no.6
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• pp.634-644
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• 2009

A diversity of wireless networks, with rapidly evolving wireless technology, are currently in service. Due to their innate physical layer vulnerability, wireless networks require enhanced security components. WLAN, WiBro, and UMTS have defined proper security components that meet standard security requirements. Extensive research has been conducted to enhance the security of individual wireless platforms, and we now have meaningful results at hand. However, with the advent of ubiquitous service, new horizontal platform service models with vertical crosslayer security are expected to be proposed. Research on synchronized security service and interoperability in a heterogeneous environment must be conducted. In heterogeneous environments, to design the balanced security components, quantitative evaluation model of security policy in wireless networks is required. To design appropriate evaluation method of security policies in heterogeneous wireless networks, we formalize the security properties in wireless networks. As the benefit of security protocols is indicated by the quality of protection (QoP), we improve the QoP model and evaluate hybrid security policy in heterogeneous wireless networks by applying to the QoP model. Deriving relative indicators from the positive impact of security points, and using these indicators to quantify a total reward function, this paper will help to assure the appropriate benchmark for combined security components in wireless networks.