• Journal of Digital Forensics
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• v.12 no.3
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• pp.39-54
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• 2018

Recently, discussions for the eradication of illegal shooting have been carried out in a socially-oriented way. The government has established comprehensive measures to eradicate cyber sexual violence crimes such as illegal shooting. Although the social interest in illegal shooting has increased, the illegal film shooting case is evolving more and more due to the development of information and communication technology. Applications that can hide confused videos are constantly circulating around the market and community sites. As a result, field investigators and professional analysts are experiencing difficulties in collecting and analyzing evidence. In this paper, we propose an evidence collection and analysis framework for illegal shooting cases in order to give practical help to illegal shooting investigation. We also proposed a system that can detect hidden applications, which is one of the main obstacles in evidence collection and analysis. We developed a detection tool to evaluate the effectiveness of the proposed system and confirmed the feasibility and scalability of the system through experiments using commercially available concealed apps.

• Korean Journal of Pharmacognosy
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• v.52 no.2
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• pp.69-76
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• 2021

Cannabis sativa is an important industrial plant utilized to produce fiber, oil, and medicinal ingredients. A chemotype of cannabis is divided into "Drug type" with predominance of tetrahydrocannabinolic acid (THCA) and "Fiber type" with cannabidiolic acid (CBDA). To develop molecular markers for the discrimination of these two types, nucleotide sequences of THCA synthase and CBDA synthase as well as their pseudogenes were retrieved from the recently published cannabis genome in chromosome scale. Gene-specific SNPs were discovered by multiple alignment of these sequences, and 2 dominant marker sets from each gene were designed for selective amplification. Our markers successfully identified "Drug type" and "Fiber type" cannabis plants as well as forensic samples including processed materials. Our molecular markers will provide a fast and efficient system for molecular-based identification of the cannabis plant.

• Analytical Science and Technology
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• v.35 no.3
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• pp.129-135
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• 2022

We tested the pre-treatment of alumina, leucine, alumina mixed with leucine at ratios of 9:1 (Al-Leu (9:1)) and 5:1 (Al-Leu (5:1)), and alumina mixed with sodium lactate at a ratio of 5:1 (Al-Lac (5:1)) on aged fingerprints (1, 7, 14, and 30 days after natural fingerprinting) before cyanoacrylate (CA) fuming to improve the development efficacy. As a result of the experiment, fingerprints with pre-treatment of alumina, leucine, Al-Leu (9:1), Al-Leu (5:1), and Al-Lac (5:1) showed better development efficacy (area and minutiae) than fingerprints without pre-treatment. Therefore, this modified CA fuming method improved the development efficacy with five pretreatments.

• Journal of International Area Studies (JIAS)
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• v.13 no.1
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• pp.345-368
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• 2009

Our research task have goal to describe a treaty rhetoric known as 『La Rhétorique ou L'Art de Parler』(1688) which corresponds to a very wide field of which the step is not yet dubious in our country. Thus to study the rhetoric of Lamy borrowed from the thought of Descartes, we left the concept d' origin of language in traditional rhetoric in connection with logic and grammar (in first part). Also the second part is devoted to the tropes and the figures that are modified and deteriorated by the language of passion called 'rhetoric of passion or psychological of figure', etc. And the third part interests in the body of the speech being the character of l' heart. Under the influence of the rhetoric of Lamy, French rhetoric at the 17th century is held for an essential text when one interests in the history of the ideas and rhetoric, marked in its specificity (passion). The project of Lamy registered in the concept of passion like 'manners of speaking'. To close this study, which does one have to retain? The first remark to note is that Lamy founds his rhetoric in opposition to traditional designs dating from the beginning of Aristote. Second remark is the idea that one finds based in famous the books of Dumarsais at the 18th century and Fontanier at the 19th century. Admittedly, Lamy is a true rhetorician, grammairien which interests in the question of passions in the speech forces to reconsider the idea spread since Mr. Foucault, and makes it possible to understand the passage of the Great century at the Century of Lumuères. Even if this opinion is not shared, it will be agreed that the work of Lamy on passions or the phenomena sensory and psychological in the center of the language deserves reflexion.

• Proceedings of the Korean Information Science Society Conference
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• 1999.10c
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• pp.312-314
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• 1999

키복구는 암호화 제품의 사용자가 암호화키를 분실하여 데이터를 복호화할 수 없을 때 데이터를 복구하거나 수사기관등이 합법적인 절차로 암호화된 데이터를 복호화하기 위한 수단이다. 정보보호의 중요성에 대한 인식이 확대되어 앞으로 많은 종류의 암호화 제품이 개발될 것으로 예상되기 때문에 다양한 키복구 기술의 개발과 키복구 기술가느이 호환성의 해결이 시급한 실정이다. 본고에서는 공개키 방식에 기반을 둔 전자상거래와 전자정부등에서 채택할 수 있는 인캡슐레이션 키복구 기술과 이를 위한 절차에 관하여 논한다. 공개키기반구조에서 키복구는 사용자와 법집행기관 모두의 요구를 충족시켜야 한다. 키복구기관을 인증관리센터의 관리하에 두고 인증관리센터가 인증하는 키복구기관의 공개키를 이용하여 키복구필드를 생성하는 인캡슐레이션 기술을 사용함으로서 사용자는 자신이 직접 세션키를 제어할 수 있는 장점이 있고 법집행기관도 필요한 경우에 언제나 사용자의 세？키를 복호화할수 있다.

• Water for future
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• v.45 no.4
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• pp.59-63
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• 2012

낙동강홍수통제소는 1987년 3월 개소 이후, 하천유량관리 업무를 체계적으로 하기 위해 1999년 8월 국가하천의 하천수 사용허가 업무가 우리 소로 이관되었고 2008년 4월 지방하천으로 확대되었다. 이로 인해 수문조사, 홍수예보 이외에도 하천유량 관리 업무의 제도적 개선을 통해 국기 물관리 전문기관으로서의 기틀이 마련되었다. 본 연구에서는 유역 중심의 합리적인 물사용과 물이용의 형평성을 위해 기존 국가하천 및 지방하천의 하천수 사용허가 자료를 현행하고 그 특성을 파악하려 한다. 조사 결과 낙동강유역 총 허가수리권 현황은 총 550건이고 허가량은 21.68백만$m^3$/일로 집계되었다. 그 중 농업용수가 전체 허가건수 중 약 70%, 전체 허가량 중 약 50%로 가장 높았다. 또한 하천법 상 하천수 사용 보고 대상자 건수는 전체 52%이나 허가량은 약 97%로 파악되었다. 요컨대 이번 연구를 통해 제고된 하천수 사용허가 자료는 실시간 낙동강 유역 물관리에 필요한 다양한 정책 의사 결정에 있어 기초자료로 적극 활용할 수 있을 것으로 기대한다.

• Proceedings of KOSOMES biannual meeting
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• 2017.11a
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• pp.209-209
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• 2017

• Proceedings of the Korea Information Processing Society Conference
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• 2014.11a
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• pp.466-469
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• 2014

기존 Window8 Style 에 대한 디지털 포렌식 연구는 윈도우 기본 애플리케이션에 대해서만 진행되어 있는 상황이고, 다른 3rd party Style App 들에 대해서만 진행되어있는 상황이다. 본 논문에서는 Window8 Style UI 의 Instant Messengers 에 대해 디지털 포렌식 분석하고 이를 통해 범인의 행동 흐름 파악 및 증거확보 매커니즘을 제시하고자 한다. 본 논문은 기존의 Window8 의 접근방법을 토대로 하여, Style App 의 사용흔적이나 내용에 대해 확인하며, 시간정보, 이미지 등 각종 애플리케이션들을 다각적으로 분석한다. 본 논문에서 제안한 접근법은 개별 App 들에 대한 정보를 효율적이고 빠르게 분석하고 사건에 대한 정보를 제공함으로써 범죄수사과정에 도움이 될 것으로 기대된다.

• Analytical Science and Technology
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• v.24 no.1
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• pp.45-50
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• 2011

While the crime scene investigation, evidences are found to search with the naked eyes and to use science equipments. Crime evidences, which are used as judgement, have various things: blood, sperm, saliva, hair, fingerprint, fiber, soil, paint, and so on, especially, fingerprints could take through crime scene investigation, and in there, it could distinguish individually. In this case study, sort of leathers: a wallet, a belt, and a sofa, which are needed special identification even thought people experience easily in usual day, are tried many of the identification tests. As a result, using fluorescent magnetic powder method or fluorescent powder method as identification of many leathers is most efficient.

• Korean Security Journal
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• no.44
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• pp.85-116
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• 2015

Found in 23 Dec 1953 to cope with illegal fishing of foreign ships and coastal guard duty, Korea Coast Guard was re-organized as an office under Ministry of Public Safety since the outbreak of sinking of passenger ship "Sewolho". In the course of re-organization, intelligence and investigation duty were transferred to Police Department except "Cases happened on the sea". But the definition of intelligence duty is vague and there are lots of disputes over the jurisdiction and range of activities. With this situation in consideration, the object of this study is to analyse legal and institutional characteristic of KCG Intelligence, to compare them to that of Police Department, foreign agencies like Japan Coast Guard and US Coast Guard, to expose the limit and to suggest solution. To summarize the conclusion, firstly, in the legal side, there is no legal basis on intelligence in [The Government Organization Act], no regulation for mission, weak basis in application act. Secondly, in the institutional side, stated in the minor chapter of [The Government Organization Act], 'the cases happened on sea' is a quite vague definition, while guard, safety, maritime pollution duty falls under 'on the sea' category, intelligence fell to 'Cases happened on the sea' causing coast guard duty and intelligence have different range. In addition, reduced organization and it's manpower led to ineffective intelligence activities. In the case of Police Department, there is definite lines on 'administration concerning public security' in [The Government Organization Act], specified the range of intelligence activities as 'collect, make and distribute information concerning public security' which made the range of main duty and intelligence identical. Japanese and US coast guards also have intelligence branch and performing activities appropriate for the main missions of the organizations. To have superiority in the regional sea, neighboring countries Japan and China are strengthening on maritime power, China has launched new coast guard bureau, Japan has given the coast guard officers to have police authority in the regional islands, and to support the objectives, specialized intelligence is organized and under development. To secure maritime sovereignty and enhance mission capability in maritime safety duty, it is strongly recommended that the KCG intelligence should have concrete legal basis, strengthen the organization and mission, reinforce manpower, and ensure specialized training administrative system.