• Journal of the Korea Institute of Information Security & Cryptology
• /
• v.9 no.3
• /
• pp.13-26
• /
• 1999

Widespread use of Internet despite numerous positive aspects resulted in increased number of system intrusions and the need for enhanced security mechanisms is urgent. Systematic collection and analysis of log data are essential in intrusion investigation. Unfortunately existing logs are stored in diverse and incompatible format thus making an automated intrusion investigation practically impossible. We examined the types of log data essential in intrusion investigation and implemented a tool to enable systematic collection and efficient analysis of voluminous log data. Our tool based on RBDMS and SQL provides graphical and user-friendly interface. We describe our experience of using the tool in actual intrusion investigation and explain how our tool can be further enhanced.

• Journal of the Korea Institute of Information Security & Cryptology
• /
• v.24 no.1
• /
• pp.195-205
• /
• 2014

These days cyber attacks are increasing all over the world, and the national critical infrastructure and information network protection has become important. For this reason, the concentrated investment in information security and development of professional human resource are essential, but there is a shortage of information security workforce in Korea. Currently, departments of information security in domestic universities make efforts to develop human resource of information security and have a increasing interest in the curriculum design. So this paper investigates the curriculums of information security in domestic universities and graduate schools. And then, it compares with the needs of industry knowledge and skills by using SPSS. Through this analysis, we will get implications about curriculum design of Information security.

• Management & Information Systems Review
• /
• v.6
• /
• pp.1-19
• /
• 2001

Partial transactions which use computer networks are formed in the cyberspace due to rapid progress of communication and computer technology. Electronic business transactions have security problems according to the special quality of opening networks, while it can be approached easily by anyone without being tied to time and places through Internets. To revitalize the electronic business transactions, security technology which can establish its security and trust is the prior task and both safe information communication and better information security service offer are essential factors. The method to exchange information through Internets must be made after confirming one another's exact connection in the mutual identity certification to prevent a lot of threat which can occur in the use of password techniques. To satisfy these electronic business transactions, we intend to increase understanding of authentication algorithm provided with authentication function of messages and users as well to plan safety and trust of business information and contents in the electronic business transactions.

• Journal of Korea Multimedia Society
• /
• v.18 no.4
• /
• pp.506-523
• /
• 2015

The intent is to determine whether or not the custody transfer is helpful for data transmission in challenging underwater communications when running Bundle protocol or underwater protocols. From the point of view defending side, Underwater Acoustic Network (UAN) will be a serious threat for its strong functionality long rang and high precision of surveillance and detection. Therefore, countermeasures must be taken to weaken its effect. Our purpose is analyzed that how to benefit from the UIoT to learn from, exploit and preserve the natural underwater resources. Delay/Disruption Tolerant Network (DTN) is essential part of the network heterogeneity communication network. The vulnerability and potential security factors of UIoT are studied thereafter. Security mechanisms for an underwater environment are difficult to apply owing to the limited bandwidth. Therefore, for underwater security, appropriate security mechanisms and security requirements must be defined simultaneously. The paper consists of mathematical and security model. Most important point of view in the security challenges of effective Buffer and Storage management in DTN.

• Journal of Convergence for Information Technology
• /
• v.7 no.2
• /
• pp.119-124
• /
• 2017

Information is a valuable asset regardless of the size of the enterprise and information security is an essential element for the survival and prosperity of the enterprise. However, in the case of large corporations, Security is ensured through rapid introduction of information security management system. but In the case of SMEs, security systems are not built or construction is delayed due to complex factors such as budget constraints, insufficient security guidelines, lack of security awareness. In this paper, we analyze the actual situation of information security management of SMEs through questionnaires, and We would like to suggest a comprehensive security plan for SMEs in free or inexpensive ways. We believe that by applying the method presented in this paper, SMEs will be able to implement the lowest cost basic information security and will benefit SMEs who plan to establish an information security plan.

• Journal of the Korea Institute of Information Security & Cryptology
• /
• v.20 no.2
• /
• pp.91-108
• /
• 2010

Universities are one of leading R&D institutes, however, their scarce security investment allows research information to leak outside. This paper proposes methods for improving security level of academic institutes to protect research information by analyzing security awareness and activities. To do that, we verified the current status of information security and awareness level by analyzing the survey which was conducted for a member of Seoul National University. As a result of statistical analysis using correlation, analysis of variance, multi regression and so on, we concluded that it is essential to improve security awareness, activities, professor's security level and management process for research labs. Thus, we suggest the following methods, security awareness and knowledge development through education, security management for research labs through provision, introduction of data protection softwares and physical control of visitors which are to be adopted to improve security level.

• Journal of Information Technology Services
• /
• v.18 no.5
• /
• pp.53-70
• /
• 2019

As information security becomes more important as the fourth industrial revolution gradually emerges, an efficient and effective way to find vulnerabilities in information systems is becoming an essential requirement of information security. As the point of the protection of current information and the protection of the future industry, the Korean government has paid attention to the bug bounty, which has been recognized for its efficiency and effectiveness and has implemented through the Korea Internet Security Agency's S/W vulnerability bug bounty program. However, there are growing problems about the S/W vulnerability bug bounty program of the Korea Internet Security Agency, which has been operating for about 7 years. The purpose of this study is to identify the problems in Korean bug bounty policies through the characteristics of the bug bounty program, and to suggest the direction of the government's policy to activate the bug bounty like changes in the government's approach utilizing the market.

• International Journal of Computer Science & Network Security
• /
• v.24 no.1
• /
• pp.196-204
• /
• 2024

The security of data and information using encryption algorithms is becoming increasingly important in today's world of digital data transmission over unsecured wired and wireless communication channels. Hybrid encryption techniques combine both symmetric and asymmetric encryption methods and provide more security than public or private key encryption models. Currently, there are many techniques on the market that use a combination of cryptographic algorithms and claim to provide higher data security. Many hybrid algorithms have failed to satisfy customers in securing data and cannot prevent all types of security threats. To improve the security of digital data, it is essential to develop novel and resilient security systems as it is inevitable in the digital era. The proposed hybrid algorithm is a combination of the well-known RSA algorithm and a simple symmetric key (SSK) algorithm. The aim of this study is to develop a better encryption method using RSA and a newly proposed symmetric SSK algorithm. We believe that the proposed hybrid cryptographic algorithm provides more security and privacy.

• Journal of Navigation and Port Research
• /
• v.33 no.10
• /
• pp.735-742
• /
• 2009

Information security is an essential factor that enables terminal to be operated. However, despite of this importance of information security, there has hardly been any research related to this topic. And moreover, current level of information security performance in container terminals has not been analyzed so far. The objective of this study is to evaluate current level of information security in container terminals. Through survey from the four leading container terminal operators in Korea, The results firstly showed that average of information security level of major container terminals was 71.7%. And from the results of data analysis, it revealed that the weak point of information security in Korean container terminals was security management, and in detail, lack of expertise of support group.

• Journal of Internet Computing and Services
• /
• v.23 no.4
• /
• pp.95-107
• /
• 2022

With the rapid development of Internet of Things sensor devices and big data processing techniques, Internet of Things sensor-based information systems have been applied in various industries. Depending on the industry in which the information systems are applied, the accuracy of the information derived can affect the industry's efficiency and safety. Therefore, security techniques that protect sensing data from security attacks and enable information systems to derive accurate information are essential. In this paper, we examine security threats targeting each processing step of an Internet of Things sensor-based information system and propose security mechanisms for each security threat. Furthermore, we present an Internet of Things sensor-based information system structure that is robust to security attacks by integrating the proposed security mechanisms. In the proposed system, by applying lightweight security techniques such as a lightweight encryption algorithm and obfuscation-based data validation, security can be secured with minimal processing delay even in low-power and low-performance IoT sensor devices. Finally, we demonstrate the feasibility of the proposed system by implementing and performance evaluating each security mechanism.