웹 애플리케이션 보안에 관한 고찰

정진미(Jinmi Jung),김영국(Young-Kuk Kim) 한국정보과학회 2007 한국정보과학회 학술발표논문집 Vol.34 No.2D

최근 들어 웹 애플리케이션의 사용이 많아짐에 따라 웹의 취약성을 이용한 공격이 증가하고 있다. 공격의 양상 또한 풍부한 자료와 쉽게 사용할 수 있는 해킹 도구 등을 통해 점점 지능화되고 있어 기존 보안 솔루션의 방어 기능을 무력하게 만들고 있다. 이에 본 논문에서는 웹 애플리케이션의 취약점과 그에 대한 대응책을 살펴보고자 한다.

Analysis of phenothrin and span80 on fire debris to determine a fire caused by bug sprays

Jinmi Jung(정진미),Siwon Kim,Kiwoong An,Kim Taeheui,Min-Hui Son,Mia Kwon 한국분석과학회 2021 학술대회논문집 Vol.2021 No.11

Sometimes unexpected fire accidents happen when they use a bug spray and an electric flyswatter to swat mosquitoes in summer season. The propellant of a bug spray is mainly LPG(liquefied petroleum gas, propane, isobutane and butane) in the aerosol mixture with the active ingredient such as insecticide. The aerosol mist can ignite to form an explosion mixture with oxygen in air and this explosion can be achieved by only one spark by electric flyswatter. Accidents are most likely to occur if LPG and air mixture which is within explosion range come into direct contact with an ignition source, such as a flame, pilot light or spark from electrical appliance that cycle on and off (e.g. refrigerator, air conditioner, vacuum cleaner, electric flyswatter, etc). Therefore we had to research to find major analyte from evidence (e.g. fire debris) gathered from the scene of these accidents. We collected several kind of commercial bug sprays and looked around their ingredients. Phenothrin and span80 were picked out as analytes because they were included among the several sprays and remained on fire debris, and analyzed by GC-MSD easily. Phenothrin is a cyclopropanecarboxylate ester used as a pyrethroid insecticide and span80(sorbitan monooleate) is one of the nonionic surfactants. The fire debris was extracted by hexane and carried out transesterification reaction by adding methanolic potassium hydroxide solution and ultrasonication. Then reaction mixure was vaporized with nitrogen and carried out silylation reaction by adding BSTFA and heating. The residue was analyzed by GC-MSD. We confirmed phenothrin and the silylation derivatives of span80(1,4-sorbitan-(TMS)4 and oleic acid-TMS).

웹 서비스를 이용한 이 기종 레거시시스템 간의 데이터 공유 방안

정진미(Jinmi Jung),김영국(Young-Kuk Kim) 한국멀티미디어학회 2008 한국멀티미디어학회 학술발표논문집 Vol.2008 No.2

최근 기업이나 공공기관에서는 다양한 업무를 처리하기 위해 많은 정보시스템을 구축하고 있으며, 이러한 시스템들은 요구사항이나 구축 당시의 기술에 따라 서로 독립적으로 구현되고 있다. 그런데, 한 기관 내에서는 부서정보, 사용자정보와 같이 각 시스템 사이에 공유되어야 할 정보들이 있다. 이에 본 논문에서는 웹 서비스를 이용하여 각 시스템에 맞는 API를 구현하고 이 AP,I를 통하여 데이터를 주고받는 방안을 제시하였다. 해당 API는 시스템으로부터 데이터를 추출하여 제공하거나, 획득하여 자신의 데이터베이스에 저장하는 역할을 한다.

혼합용매에 의한 단순화 반응 기반 다중 관능기 도입 킬레이트 수지의 합성 및 보론 흡착특성 향상

방영길(Young-Kill Bang),박창현(Changhyun Park),한정현(Junghyun Han),이태진(Taejin Lee),최영주(Youngju Choi),정진미(Jinmi Jung),김형일(Hyung-Il Kim) 한국고분자학회 2020 폴리머 Vol.44 No.3

수처리 시스템에 적용하기 위한 보론 흡착용 기본 수지로 poly(St-co-DVB) 가교중합체를 현탁중합으로 합성하였다. 기본 수지에 대하여 염화메틸화 반응을 거쳐 글루카민기가 도입된 킬레이트 수지를 평균 입경 500 μm 구형의 고다공성 수지로 합성하였다. 이러한 반응과정에서 혼합용매와 상용화 용매를 사용하여 상분리 없이 반응단계를 간소화하여 킬레이트 수지를 합성하였다. 글루카민기의 입체장애에 따라 글루카민 치환반응이 원활히 진행되지 못하는 문제점을 하이드록시기를 갖는 저분자량 아미노알코올을 사용하여 해결함으로써 보론 이온 흡착률이 30% 이상 향상된 새로운 구조의 킬레이트 수지를 합성하였다. 이러한 킬레이트 수지에 대해서 가교제 함량, 글루카민기 및 아미노알코올기 도입이 보론 흡착특성에 미치는 영향을 조사하였다. Poly(St-co-DVB) crosslinked polymer was synthesized by suspension polymerization as a base material for boron adsorption in order to apply to the water treatment system. Poly(St-co-DVB) crosslinked polymer was subjected to chloromethylation reaction to synthesize various chelate resins having glucamine groups, as porous spherical particles of an average size of 500 μm. The chelate resins were synthesized by the simplified reaction of chloromethylation and glucamine substitution without phase separation by applying mixed solvent and compatibilizing solvent. Chelate resins with the new structure were synthesized using low molecular weight amino alcohol containing a hydroxyl group in order to solve the steric hindrance problem among glucamine groups in the substitution reaction. As a result, the new structure of chelate resin enabled the adsorption of boron ion to be improved more than 30% higher. Boron removal characteristics of chelate resins were evaluated depending on crosslinking agent content and introduction of both glucamine and aminoalcohol groups.

최근 3년간 국내 변사체 중 약독물 검출 유형(2007~2009) - 약독물 검출 시스템 확립을 위한 목표 약물의 선별 -

김은미(Eunmi Kim),김지현(Jihyun Kim),홍효정(Hyojeong Hong),정수진(Sujin Jeong),인상환(Sanghwan In),이종숙(Jongsook Rhee),정진미(Jinmi Jung),이한선(Hansun Lee),이상기(Sangki Lee) 대한약학회 2010 약학회지 Vol.54 No.5

The majority of forensic autopsies in Korea are performed by the National Institute of Scientific Investigation (NISI), and the NISI has carried out about 4,000 cases annually. Total 4,578 autopsies were performed by NISI in 2009, among them 2,918 cases (64%) were carried out at main office of NISI in Seoul, which is in charge of Seoul, Incheon and Gyeonggi province. In this study we investigated pattern of drugs & poisons in autopsy cases for recent three years in Korea. Postmortem specimens (bloods, gastric contents, etc) from autopsy cases by main office of NISI during 2007~2009 were screened for drugs & poisons. Using laboratory information management system of NISI (iLIMS), the kinds of drugs & poisons and the frequency were investigated. As the results, 1,705 cases were negative to drugs & poisons, it occupied 58% of total 2,918 autopsy cases in 2009. During three years (2007~2009), the kinds of drugs & poisons detected in specimens were 206, 185 and 203, respectively, and top three drugs were atropine (anticholinergic), chlorpheniramine (antihistamine) and lidocaine (local anaesthetic/anti-arrythmic). These drugs were supposed to be used not so much for suicidal or homicidal purpose as for therapeutic purpose in hospital. Meanwhile cyanide showed the highest frequency of poisons during 2007~2009, and the frequency was 32 cases in 2009. In case of pesticides, poisoning by paraquat (herbicide, 17 cases) showed the highest frequency, and methomyl (insecticide, 9 cases) and glyphosate (herbicide, 7 cases) were followed. Finally we selected 62 drugs as target drugs for systematic toxicological analysis (STA) for Korea. Poisons such as pesticides, natural toxins, volatile compounds should be included for STA in further study.

가스크로마토그래피/질량분석기를 이용한 약물의 확인 및 간이 정량분석 프로그램 개발

김은미(Eunmi Kim),한은영(Eunyoung Han),홍효정(Hyojeong Hong),정수진(Sujin Jeong),최상길(Sanggil Choe),이종숙(Jongsook Rhee),정진미(Jinmi Jung),염혜선(Hyesun Yeom),이한선(Hansun Lee),이상기(Sangki Lee) 대한약학회 2011 약학회지 Vol.55 No.2

Systematic toxicological analysis (STA) means the process for general unknown screening of drugs and toxic compounds in biological fluids. In order to establish STA, in previous study we investigated pattern of drugs & poisons in autopsy cases during 2007~2009 in Korea, and finally selected 62 drugs as target drugs for STA. In this study, rapid and simple drug identification and quantitative analytical program by gas chromatography-mass spectrometry(GC-MS) was developed. The in-house program, “DrugMan”, consisted of modified chemstation data analysis menu and newly developed macro modules. Total 55 drugs among 62 target drugs were applied to this program, they were 14 antidepressants, 8 antihistamines, 5 sedatives/hypnotics, 5 narcotic analgesics, 3 antipsychotic drugs, and etc. For calibration curves, fifty five drugs were divided into four groups of range considering their therapeutic or toxic concentrations in blood specimen, i.e. 0.05~1 mg/l, 0.1~1 mg/l, 0.1~5 mg/l or 0.5~10 mg/l. Standards spiked bloods were extracted by solid-phase extraction (SPE) with trimipramine-D3 as internal standard. Parameters such as retention times, 3 mass fragment ions, and calibration curves for each drug were registered to DrugMan. A series of identification, semi quantitation of target drugs and reporting the results were performed automatically. Calibration curves for most drugs were linear with correlation coefficients exceeding 0.98. Sensitivity rate of DrugMan was 0.90 (90%) for 55 drugs at the level of 0.5 mg/l. For standard spiked bloods at the level of 0.5 mg/l for 29 drugs, semi quantitative concentrations were ranged 0.36~0.64 mg/l by DrugMan. If more drugs are registered to database in DrugMan in further study, it will be useful tools for STA in forensic toxicology.