• Proceedings of the IEEK Conference
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• 2006.06a
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• pp.377-378
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• 2006

The proposed method measures the correlation maps of SVD that are used to interpret data relations and structures between the original image and the distorted image. It seems that the SVD results can be used to assist us in gaining information about covariance structure of two images. This method is able to work in the complete absence of any digital watermark or signature. The effectiveness of this method is seen through testing the robustness against JPEG compression.

• Review of KIISC
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• v.21 no.2
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• pp.30-35
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• 2011

ISO/IEC JTC 1에서 정보보안 기술에 대한 국제표준화를 추진하고 있는 서브위원회(SC, subcommittee)는 SC 27 서브위원회이다. 이 위원회는 1980년 창립되어 금년으로 21년째 되는 서브위원회로, 정보보호관리체계, 암호 및 보안 메커니즘, 보안성 평가 기준, 보안 통제 및 서비스, 아이덴티티 (identity) 관리 및 프라이버시 기술에 대한 국제표준화를 추진하고있다. 이중 작업반 4에서는 보안 통제(security control) 및 서비스에 대한 국제표준화를 추진하고 있으며, 2006년에 창립되어 주로 네트워크 보안, 정보보호 침해사고 관리, 사이버 보안, 디지털 증거자료(포렌직), 공급자 체인 보안, 스토리지 보안 등 서비스 및 응용보안에 초점을 맞추어 국제표준화를 추진하고 있다. 본 고에서는 작업반 4에서 최근에 수행되고있는 주요 국제표준화 내용을 살펴보고 주요 이슈를 제시한다.

• Journal of Korea Society of Industrial Information Systems
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• v.12 no.3
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• pp.104-115
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• 2007

As soon as an intrusion is detected by kernel backdoor, the proposed method can be preserve secure and trustworthy evidence even in a damaged system. As an experimental tool, we implement a backup and analysis system, which can be response quickly, to minimize the damages. In this paper, we propose a method, which can restore the deleted log file and analyze the image of a hard disk, to be able to expose the location of a intruder.

• Convergence Security Journal
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• v.15 no.1
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• pp.69-82
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• 2015

This dissertation introduce how to react against the cybercrime and analysis of malware detection. Also this dissertation emphasize the importance about efficient control of correspond process for the information security. Cybercrime and cyber breach are becoming increasingly intelligent and sophisticated. To correspond those crimes, the strategy of defense need change soft kill to hard kill. So this dissertation includes the study of weak point about OS, Application system. Also this dissertation suggest that API structure for handling and analyzing big data forensic.

• Journal of KIISE
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• v.42 no.4
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• pp.541-549
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• 2015

A large volume of continuously growing BGP data files can raise two technical challenges regarding scalability and manageability. Due to the recent development of the open-source distributed computing infrastructure, Hadoop, it becomes feasible to handle a large amount of data in a scalable manner. In this paper, we present a new Hadoop-based BGP tool (BGPdoop) that provides the scale-out performance as well as the extensible and agile analysis capability. In particular, BGPdoop realizes a query-based BGP record exploration function using Hive on the partitioned BGP data structure, which enables flexible and versatile analytics of BGP archive files. From the experiments for the scalability with a Hadoop cluster of 20 nodes, we demonstrate that BGPdoop achieves 5 times higher performance and the user-defined analysis capability by expressing diverse BGP routing analytics in Hive queries.