• Convergence Security Journal
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• v.12 no.2
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• pp.13-21
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• 2012

The purpose of this study is to profile actual conditions of personal information protection systems operated in overseas countries and examine major considerations of personal information that security service providers must know in the capacity of privacy information processor, so that it may contribute to preventing potential occurrence of any legal disputes in advance. Particularly, this study further seeks to describe fundamental idea and principle of said Personal Information Protection Act; enhancement of various safety measures (e.g. collection/use of privacy data, processing of sensitive information/personal ID information, and encryption of privacy information); restrictions on installation/operation of video data processing devices; and penal regulations as a means of countermeasure against leakage of personal information, while proposing possible solutions to cope with these matters. Using cases among foreign countries for this study.

• Journal of Convergence Society for SMB
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• v.4 no.2
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• pp.13-18
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• 2014

Due to the development of information systems and the Internet, the Internet and smart phones can access networking in any where and any time. This causes the program to exploit various vulnerabilities and malicious code created to go out information, the disclosure of such crime increasing day by day. The proposed countermeasure model will be able to contribute to block all kinds of malicious code activities.

• Management & Information Systems Review
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• v.20
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• pp.17-32
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• 2007

We try to study the plan to deliver the message of the hope and common peoples are diligent and we can buy the real estate in work if we make efforts hard that relieve an real estate price and analyze a timex situation. If prepared the countermeasure in the government with many real estate policy with due to a short though countermeasure which is seen at one's face. The error to the people of the policy which does not do the staring gaze to tie. This paper to pursue the stability of an real estate price and analyze the price according to an real estate policy and lead an real estate policy for a residing stability of the common people. There are we even though we grope the method to actualize and protect a lease security according to a house lease law of protection.

• Journal of the Korean Home Economics Association
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• v.23 no.2
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• pp.13-19
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• 1985

While the appearance of new textiles and processing materials results in the improvement in quality of clothes and its luxury, a question about the irritation of clothes on the human body must be raised. In Japan and many countries in Europe, they are searching for a countermeasure against the bad influence of clothes on the human body for the purpose of protecting consumers. In our country, a little bit of study about the skin irritatio has been carried out. In this thesis, the literature on the kinds of the irritation of clothes on the human body was studied and analysed. And then I arranged it from the view-point of clothing hygienics. For example, we should observe the legal regulations and the administrative control in the process of production and distributive management of clothes for our safety. Therefore the authorities concerned must have preparations for the safety and this monograph is going to give information for it.

• ETRI Journal
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• v.44 no.3
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• pp.512-523
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• 2022

Random delay countermeasures introduce random delays into the execution flow to break the synchronization and increase the complexity of the side channel attack. A novel method for attacking devices with random delay countermeasures has been proposed by using a maximal overlap discrete wavelet transform (MODWT)-based power trace alignment algorithm. Firstly, the random delay in the power traces is sensitized using MODWT to the captured power traces. Secondly, it is detected using the proposed random delay detection algorithm. Thirdly, random delays are removed by circular shifting in the wavelet domain, and finally, the power analysis attack is successfully mounted in the wavelet domain. Experimental validation of the proposed method with the National Institute of Standards and Technology certified Advanced Encryption Standard-128 cryptographic algorithm and the SAKURA-G platform showed a 7.5× reduction in measurements to disclosure and a 3.14× improvement in maximum correlation value when compared with similar works in the literature.

• Journal of Intelligence and Information Systems
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• v.26 no.3
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• pp.37-50
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• 2020

Information security has become an important issue in the world. Various information and communication technologies, such as the Internet of Things, big data, cloud, and artificial intelligence, are developing, and the need for information security is increasing. Although the necessity of information security is expanding according to the development of information and communication technology, interest in information security investment is insufficient. In general, measuring the effect of information security investment is difficult, so appropriate investment is not being practice, and organizations are decreasing their information security investment. In addition, since the types and specification of information security measures are diverse, it is difficult to compare and evaluate the information security countermeasures objectively, and there is a lack of decision-making methods about information security investment. To develop the organization, policies and decisions related to information security are essential, and measuring the effect of information security investment is necessary. Therefore, this study proposes a method of constructing an investment portfolio for information security measures using game theory and derives an optimal defence probability. Using the two-person game model, the information security manager and the attacker are assumed to be the game players, and the information security countermeasures and information security threats are assumed as the strategy of the players, respectively. A zero-sum game that the sum of the players' payoffs is zero is assumed, and we derive a solution of a mixed strategy game in which a strategy is selected according to probability distribution among strategies. In the real world, there are various types of information security threats exist, so multiple information security measures should be considered to maintain the appropriate information security level of information systems. We assume that the defence ratio of the information security countermeasures is known, and we derive the optimal solution of the mixed strategy game using linear programming. The contributions of this study are as follows. First, we conduct analysis using real performance data of information security measures. Information security managers of organizations can use the methodology suggested in this study to make practical decisions when establishing investment portfolio for information security countermeasures. Second, the investment weight of information security countermeasures is derived. Since we derive the weight of each information security measure, not just whether or not information security measures have been invested, it is easy to construct an information security investment portfolio in a situation where investment decisions need to be made in consideration of a number of information security countermeasures. Finally, it is possible to find the optimal defence probability after constructing an investment portfolio of information security countermeasures. The information security managers of organizations can measure the specific investment effect by drawing out information security countermeasures that fit the organization's information security investment budget. Also, numerical examples are presented and computational results are analyzed. Based on the performance of various information security countermeasures: Firewall, IPS, and Antivirus, data related to information security measures are collected to construct a portfolio of information security countermeasures. The defence ratio of the information security countermeasures is created using a uniform distribution, and a coverage of performance is derived based on the report of each information security countermeasure. According to numerical examples that considered Firewall, IPS, and Antivirus as information security countermeasures, the investment weights of Firewall, IPS, and Antivirus are optimized to 60.74%, 39.26%, and 0%, respectively. The result shows that the defence probability of the organization is maximized to 83.87%. When the methodology and examples of this study are used in practice, information security managers can consider various types of information security measures, and the appropriate investment level of each measure can be reflected in the organization's budget.

• Convergence Security Journal
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• v.16 no.2
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• pp.63-70
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• 2016

With the development of information and communication technologies like internet, the environment where people are able to access internet at any time and at any place has been established. As a result, cyber threats have been tried through various routes. Of cyber threats, DDoS is on the constant rise. For DDoS prediction modeling, this study drew a DDoS security index prediction formula on the basis of event data by using a statistical technique, and quantified the drawn security index. It is expected that by using the proposed security index and coming up with a countermeasure against DDoS threats, it is possible to minimize damage and thereby the prediction model will become objective and efficient.

• Journal of Digital Convergence
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• v.11 no.4
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• pp.215-220
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• 2013

The super computer calls usually as the super computer in case the computing power of the computer is 20 G flops (GFLOPS) or greater. In the past, the computer equipped with the vector processor (the instrument processing the order having the logic operation and maximum value or minimum value besides the common computer instruction) processing the scientific calculation with the super high speed was installed as the super computer. Recently, cyber attack focuses on supercomputer because if it is being infected, then it will affect hundreds of client PC. Therefore, our research paper analyzed super computer security issues and biometric countermeasure to develop the level of security on super computer.

• Journal of Convergence Society for SMB
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• v.5 no.4
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• pp.25-30
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• 2015

Recently, interest in Fin-Tech, a compound word of finance and technology, has been increased. However, Fin-Tech that is a mixture of finance and IT is exposed in terms of security. In this paper, we propose a method to solve the security-related problem that occurs in the financial sector where the Fin-Tech is used. Proposed method found out different problems of services which are provided by companies through a variety of financial sectors and described a method to facilitate the security service. In particular, proposed method presents a service plan to secure safety and to minimize the damage. Also, proposed method set an objective to stabilize financial services based on analyzed result after analyzing the problems of existing FinTech security services.

• Convergence Security Journal
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• v.14 no.1
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• pp.77-83
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• 2014

In times past, the awareness of security held good on the physical aspect, but it has been expanded to the aspect of information security and management security owing to the development of information and communication technology, therefore an effort is being made to meet multidimensional security needs. These realities are currently changing the viewpoint of consumers from manned guarding to machine-aided guarding. The change to the machine-aided guarding caused the profitability problem of manned guarding companies, and brought about a reverse side effect that prompt and correct countermeasure was inferior to that of manned-guarding. Therefore, this study proposes a 'smart time & attendance management system' that can be applied to various types of work and can minimize position information.