• Journal of the Korea Institute of Information Security & Cryptology
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• v.28 no.5
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• pp.1113-1118
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• 2018

Fingerprint authentication is the most popular biometric in smart devices. However it has vulnerability to fake fingerprints. This paper shows that it is possible to pass fingerprint authentication of smartphone by creating counterfeit fingerprint without approval of legitimate users. As a technical countermeasure to prevent such a smudge-based attack, there has been proposed an under-screen Touch ID with a slide bar, which is a method of removing the fingerprint trail by dragging the UI to the side after fingerprint authentication on the touch screen. In this paper, we analyze how the proposed attack method and mitigation are perceived by actual user through 61 user survey.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.19 no.4
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• pp.855-863
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• 2015

In this paper, we present a novel method to verify the financial site and prevent sensitive information disclosure with financial security card and smart phone. This method allows homepage access when user accesses to the valid site with right security card and smart phone. Furthermore, traditional OTP method cannot be secure against to Man in the middle attack, but out method presents the countermeasure of this. User can readily recognize the phishing and pharming sites and even avoid Man in the middle attack by malicious users.

• The Journal of Information Technology
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• v.2 no.2
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• pp.89-105
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• 1999

In this paper, we present a countermeasure for a various trouble occurred in secure communication of document image. We Propose a security system for transmission of document image using mixing algorithm that the third party cannot conceive secure transmission of information instead of existing scheme which depend on crypto-degree of security algorithm, itself. For this, RM, DM and RDM algorithm for mixing of secure bits are proposed and applied to digital signature for mixing for secure document and mixing for non-secure document by secure document. Security system for document image involves not only security scheme for document image transmission itself, but also digital signature scheme. The transmitter embeds secretly the signatures onto secure document, embeds it to non-secure document and transfers it to the receiver. The receiver makes a check of any forgery on the signature and the document. Because the total amount of transmitted data and the image quality are about the same to those of the original document image, respectively, the third party cannot notice the fact that signatures and secure document are embedded on the document image. Thus, the probability of attack will be reduced.

• Journal of the Korea Society of Computer and Information
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• v.10 no.2 s.34
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• pp.105-112
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• 2005

As the development of information telecommunication technology and thus the information sharing and opening is accelerated, If system is exposed to various threatener and the avrious security incident is rasing its head with social problem. As countermeasure, to protect safely and prepare in the attack for a system from a be latent security threat, various security systems are been using such as IDS, Firewall, VPN etc.. But, expertise or expert is required to handle security system. The module, implemented in this paper, is based on Windows XP, like Linux and Unix, and has effect integrity and non-repudiation for a file.

• Journal of Korea Society of Digital Industry and Information Management
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• v.12 no.4
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• pp.41-49
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• 2016

Smart Grid is a next generation of new power growth electrical grid which provide high quality of electrical service by using Information Technologies to increase intelligence and performance. By using Smart Grid system, it can support energy management such as increase quality of electrical power, decrease energy and decrease emissions. However, Smart Grid uses information of energy consumption and when Smart Grid collects information, it will create private information. In this thesis, it will address issues of security private information which caused by Smart Grid for administrative measure and efficiency of Smart Grid in domestic. Also, cryptographic module algorithm, latest security solutions and strong wireless security policy for network environment such as wireless communication Iinternet are require for Smart Grid perform successfully and protect national power network equipment from cyber-attack and can stop leakage of user's personal information. Finally, it is urgent to prepare protection measures of National industrial facilities and power grid which can prepare for a cyber terrorism and penetration attacks and build emergency countermeasure management team for Smart Grid are require for safe Smart Grid environment.

• Convergence Security Journal
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• v.14 no.5
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• pp.31-36
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• 2014

As security management center of financial area, financial ISAC monitors financial corporations and provides security services. Financial ISAC minimizes damage by responding quickly to external attack such as hacking, virus but it is poor at handling internal attack. For the efficient management and stable operation of information source, also to respond jointly to online hacking, the necessity of information sharing system increases day by day in and outside country. This paper proposes financial ISAC that can prevent a secondary damage of leakage information as well as providing security services. The proposed financial ISAC provides new password to financial corporation in which the same ID and password as leakage information are used and in case of financial information leakage it warns customers against phishing etc.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.16 no.2
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• pp.1388-1397
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• 2015

Recently, an application business model was proposed to implement an M-coupon system using the NFC-based mobile devices. In this paper, the security requirements were surveyed for a secure M-coupon system and to analyze the threats on the existing NFC-based M-coupon protocols. After considering the implementation efficiency and security, this paper presents a novel M-coupon protocol based on the Diffie-Hellman key agreement scheme. This protocol can be an alternative to solve the security problems related to the PKI (Public Key Infrastructure) and secret key distribution. Furthermore, this M-coupon protocol is designed to provide user authentication and counteract the relay attack.

• Journal of Platform Technology
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• v.9 no.3
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• pp.78-83
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• 2021

The new industry drone research is increasing through convergence between 4th industrial revolution technology. In particular, the government indicates the D.N.A platform as a countermeasure of 4th industrial revolution. So, the research topics are remarkable which are using D.N.A platform. On the other hand, the drone for industrial and research has spatial factor based on sequential because, they performance scenario-based mission through control operation. When the drone flights as a control operation, they have necessity apply multi-dimensional methods to improve the security level. So, this study researched a scenario based drone platform to improve the security level. As a result, the space classified as a ground control system, drone, drone data server and designed the application method based on scenario security technology.

• Journal of Advanced Navigation Technology
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• v.12 no.1
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• pp.61-67
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• 2008

Each organization installing and operating multimedia system, to achieve the goal of organization, should decide security level, implement security countermeasure, and manage these countermeasures to keep the effects. To decide and manage security level of multimedia system, the first, organizations must be able to decide security level, and then, organizations must establish procedures for building security countermeasures according to security level. For the next step, organizations must be able to select areas where security countermeasures should be applied, and the last, organizations must be able to evaluate and improve the effect of security countermeasures. In this paper, based on the analysis of threat to multimedia system and the consideration for multimedia assets, we propose a method for deciding security level of multimedia system.

• Journal of Digital Convergence
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• v.11 no.11
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• pp.305-312
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• 2013

This research suggests the security countermeasures for solving technology outflow of small-medium companies in New IT Environment through level comparison of security cognition and security management between small-medium companies and major big companies. According to analysis results, it is poor for small-medium companies' level of security cognition and security management compared with major big companies. Small-medium companies need to manage technology outflow to major big companies' level in New IT Environment. Small-medium companies has started to build New IT Environment recently and it must build the appropriate security system for small-medium companies at the same time. Small-medium company has more problem with budget and proffessionals to maintain the security of technology outflow. Therefore government has to support systematic management for the security of technology outflow to Small-medium companies