• Convergence Security Journal
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• v.19 no.4
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• pp.87-96
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• 2019

Recently, with the rapid development of video equipment and technology, tremendous video information is produced and utilized in military domain to acquire battlefield information or for effective command control. Note that the video playback devices currently used in the military domain ranges from low-performance tactical multi-functional terminals (TMFT) to high-performance video servers and the networks where the video information is transmitted also range from the low speed tactical information and communication network (TICN) to ultra-high speed defense broadband converged networks such as M-BcN. Therefore, there is a need for an efficient streaming technique that can efficiently transmit defense video information in heterogeneous communication equipment and network environments. To solve the problem, this paper proposes a Scalable Video Coding (SVC) and balanced selection algorithm based Peer-to-Peer (P2P) streaming technique and the feasibility of the proposed technique is verified by simulations. The simulation results based on our BitTorrent simulator show that the proposed balanced selection scheme outperforms the sequential or rarest selection algorithm.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.33 no.3
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• pp.577-589
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• 2023

Ministry of National Defense plans to harness AI as a key technology to bolster overall defense capability for cultivation of an advanced strong military based on science and technology based on Defense Innovation 4.0 Plan. However, security threats due to the characteristics of AI can be a real threat to AI-based defense information system. In order to solve them, systematic security activities must be carried out from the development stage. This paper proposes security activities and considerations that must be carried out at each stage of AI-based defense information system. Through this, It is expected to contribute to preventing security threats caused by the application of AI technology to the defense field and securing the safety and reliability of defense information system.

• 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.

• Convergence Security Journal
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• v.12 no.4
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• pp.57-69
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• 2012

C4ISR system is an important tool for military operational command and control. Therefore, it is frequently exposed to the cyber-terror attempt to paralyze the military command and control system. Generally, the information system uses IDS and firewall as major security computing tools. C4ISR system also uses them as major measures for the information protection. But the usefulness of IDS is reduced due to the frequent false-positives and false-negatives if the behavioral patterns are modified or new behavioral patterns appear. This paper presents new IDS structure which can create modified attack patterns and unexpected attack patterns automatically during IDS probing process. The proposed IDS structure is expected to enhance the information protection capability of the C4ISR system by reducing false-positives and false-negatives through the creation and verification of new attack patterns.

• Information Systems Review
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• v.22 no.3
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• pp.31-58
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• 2020

Based on the social control theory, this study intends to find out the influential factors of organizational members' information security policy compliance (ISPC). Survey data from 195 military officers were analyzed to examine the effect of ethical disposition (morality, responsibility, the perceived value of ethical education) and perceived work environment (relationships with supervisors, overwork, and pay satisfaction) on ISPC attitude, ISPC intention, and turnover intention. The results of partial least squares structural equation modeling (PLS-SEM) show that ethical dispositions affect ISPC attitude and that work environments (except for pay satisfaction) affect turnover intention. In addition, ISPC attitude significantly mediates relations between ethical disposition and ISPC intention, between relationships with supervisors and ISPC intention, and between turnover intention and ISPC intention. These findings suggest that ethical disposition factors can predict an individual's security awareness level, and the ISPC attitude is a significant variable in the organizational security context.

• The Journal of Information Technology and Database
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• v.6 no.2
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• pp.1-18
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• 1999

The purpose of this study was to identify the effect of microcomputer networking on user perception of potential threats to security employing user attitudes as a moderating variable. A research model consisting of microcomputer networking as the independent variable, user perception of potential threats to security as the dependent variable, and user attitude toward security control as the moderating variable was developed through literature review. The results of this study provide an empirical evidence of the importance of environmental change(information systems networking) on user perception of potential threats to security. Further-more the result imply that in order to improve security performance through the reinforcement of user perception of threats to security in the organization, user attitudes should be made favorable.

• Convergence Security Journal
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• v.18 no.5_2
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• pp.21-27
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• 2018

Most of the Internet users in Korea are issued certificates and use them for various tasks. For this reason, it is recommended that accredited certification authorities and security related companies and use public certificates on USB memory and portable storage devices rather than on the user's desktop. Despite these efforts, the hacking of the certificate has been continuously occurring and the financial damage has been continuing. Also, for security reasons, our military has disabled USB to general military users. Therefore, this study proposes a two-factor method using the unique information of the USB memory and the PC which is owned by the user, and suggests a method of managing the private key file secure to the general user. Furthermore, it will be applied to national defense to contribute to the prevention of important data and prevention of access by unauthorized persons.

• Journal of the Korea Institute of Military Science and Technology
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• v.12 no.3
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• pp.317-324
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• 2009

Tactical Information Communication Network(TICN) uses both a wireless and wired network. To support mobility in battlefield environments, the application of Ad-hoc networking technology to its wireless communication has been examined. However, Ad-hoc network is faced to many security threats due to its intrinsic characteristics. Therefore, to apply the Ad-hoc networking technology to battlefield environments and TICN, an intensive study on security countermeasure must go side by side with the development of enabling technology. In this paper, we suggest an efficient key management scheme for TICN of which the Ad-hoc networking technology is applied.

• Journal of the Korea Institute of Military Science and Technology
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• v.24 no.5
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• pp.537-544
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• 2021

Cyber threats can bypass existing cyber-protection systems and are rapidly developing by exploiting new technologies such as artificial intelligence. In order to respond to such cyber threats, it is important to improve the ability to detect unknown cyber threats by correlating heterogeneous cyber protection systems. In this paper, to enhance cyber-attack response capabilities, we proposed command and control that enables rapid decision-making and response before the attack objectives are achieved, using Lockheed Martin's cyber kill chain and MITRE ATT&CK to analyze the purpose and intention of the attacker.

• Proceedings of the Korea Institutes of Information Security and Cryptology Conference
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• 1991.11a
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• pp.134-143
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• 1991

코드분할 다중통신(Code Division Multiple Access Communication)은 Spread Spectrum 통신의 발전된 형태로서 군사목적상 이동 무선통신(Combat Multiple Communication)을 위해서 최근들어 급속도로 중요시 되고있다. 잘 알려진 바와 같이 두 가지 가장 일반적인 다중통신 방식은 주파수 분할 다중통신방식과 시분할 다중 통신 방식이다. 주파수 분할 다중통신 방식에서는 모든 사용자가 각각 다른 주파수를 사용하여 동시에 신호를 보내고 시분할 다중통신에서는 같은 주파수를 사용하되 시간대를 달리하고 있다. 이 두가지 방식을 결합하여 모든 사용자가 같은 시각과 같은 주파수를 공유하여 통신을 가능케 할 수 있는 방식이 코드분할 다중통신이다. 여기에서 사용자는 각각 고유한 코드를 부여받는다. 이때 각 코드간에는 낮은 상관계수(Cross-correlation )를 가져야 하며, 이러한 성질을 만족하는 코드 집합을 구하기 위한 노력이 경주되었으며 현재까지 2진법 코드 집합으로서 Gold, Kasami, No 코드가 알려져 있으며, 복잡성(Complexity)을 증가시키기 위한 노력으로서 (군사목적에 중요) 다진법 코드에 대한 연구가 활발해지고 있으나 공개된 것은 없었다. 최근에 (1990), 다진법 코드로서 Kumar 코드가 발표되었다. 그러나 이러한 코드들은 복잡성(Complexity or Linear Span)을 증가시키지는 못하였다. 본 논문은 복잡성(Complexity)이 증가한 새로운 다진법 코드의 집합을 제안하였다. 각 집합은 $P^{n}$ 개의 코드로 구성되며, 최대 상관계수 값은 $f^{m}$ (p-1)-1 이다. (n=2m)