• International Journal of Costume and Fashion
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• v.9 no.2
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• pp.1-18
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• 2009

Since the 1990s, the domestic fashion industry has been changing rapidly and has become more competitive. Due to these circumstances, the roles of Shop masters were intensified and a training course to acquire a certificate of qualification as a Shop master was in great demand. The 1st Shop master certification exam took place in the year 2001. The purpose of this study was to research the formality of Shop master certificate training courses via e-learning, which is a hot topic in 21st century education, and to provide a development example. First, an analysis was made of the definition and basic characteristics needed of a Shop-master. Next, we noted the problems of former Shop master training facilities and their training process. Thirdly, we did a research on the definition of e-learning and the elements to embody the system. Based on the information obtained through this research, we provided a development example on Shop-master certificate training courses via e-learning that overcame the problems of courses that are currently provided.

• Proceedings of the Korean Society for Quality Management Conference
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• 2004.04a
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• pp.618-624
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• 2004

Korean Standard Certificate , suitable for the korean industrial standards is one which was designed not only to spread and utilize the industrial standard established for the industrial standardization but to protect the consumer In this study, the practical effects of the Korean Standard Certificate will be examined in various fields, based on the small medium enterprises which achieved the K.S. Certificate In order to look into how the system has effects on the performance of the management in a company, the method of the actual approach will be used. In the end, the purpose of this study is to find the plan in which KS Certificate can be helpful to the development of the company.

• Proceedings of the Korea Institutes of Information Security and Cryptology Conference
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• 2003.12a
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• pp.611-614
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• 2003

S.S.Al-Riyami와 K.G.Paterson에 의해 제안된 Certificate-less 공개키 암호 시스템은 기존 공개키 암호 시스템이 가지는 인증서 관리의 불편함과 ID-based 암호 시스템이 가지는 Key Escrow문제를 동시에 해결해 주었다. 하지만 대부분의 공개키 암호 시스템 과 마찬가지로 Certificate-less 공개키 암호 시스템 역시 비공개키의 노출에 대한 문제를 가지고 있다. 따라서 본 논문에서는 기존 Certificate-less 공개키 암호 시스템에 Strong Key Insulation을 제공함으로써 보다 안전한 암호 시스템을 제안한다. 또한 이 시스템은 기존 Key Insulated 공개키 암호 시스템에 비해 계산량을 줄임으로써 보다 효율적인 암호 시스템을 구축할 수 있다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2016.10a
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• pp.762-764
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• 2016

The ECQV(Elliptic Curve Qu-Vanstone) is a implicit certificate scheme based on ECC(Elliptic Curve Cryptography). Implicit certificates are smaller and faster than a traditional explicit certificate. Therefore, it can be used in a memory or bandwidth constraint communication environments. Also, the butterfly key expansion algorithm is a method to issue many certificates by using only one public key. In this study, by applying the butterfly key expansion algorithm to ECQV, we suggest a new useful issuing certificate method that can be used in vehicular communication environments.

• Proceedings of the Korea Information Processing Society Conference
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• 2010.04a
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• pp.743-745
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• 2010

기 구축된 Public Key Infrastructure(이하 PKI) 에서 발급된 디지털인증서를 외부 네트워크와 단절된 인트라넷 환경에서 사용하기 외부 네트워크에 지정된 인증서 검증 서버에 접속할 수가 없기 때문에 인증서 유효성 검증의 문제를 발생시켜 사용이 불가능하다. 이러한 문제점을 해결하기 위해 인트라넷 환경을 위한 인증서유효목록 검증 시스템을 제안한다. 인증서유효목록 검증 시스템은 기존의 PKI 에서 인증서 검증을 위해서 사용하는 Certificate Revocation List (이하 CRL)를 대체하는 Certificate Valid List (이하 CVL)를 사용하여 외부 네트워크와 접속이 단절된 인트라넷 환경에서도 기 구축된 PKI 에서 발급된 디지털 인증서의 유효성을 검증할 수 있다. 인증서유효목록 검증 시스템은 CVL 의 생성을 위한 Certificate Valid List Manager (이하 CVLM)와 주기적인 CVL 발급 및 게시를 위한 Certificate Valid List Issuer (이하 CVLI), 응용서비스에서 사용하는 User Agent (이하 UA) 를 포함한다.

• Journal of Internet Computing and Services
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• v.6 no.5
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• pp.1-9
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• 2005

In a role based access control through attribute certificate, the use of role assignment certificates and role specification certificates can reduce management cost and the overhead incurred by changing roles, Highly distributed computing environments such as ubiquitous computing environments not having global or broad control. need another attribute certificate management technique, Actually just having role specification certificate separately reduce management cost, But for better performance we structure role specification, We group roles and make the role group relation tree, It results secure and efficient role renewing and distribution, For scalable role specification certificate distribution, the multicasting of packets is used, We take into account the packet lass and quantify performance enhancements of structuring role specification certificates.

• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.36 no.3
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• pp.298-305
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• 2008

From design to serial production, aircraft should go thorough complicated certification procedure from airworthiness authority such as Type Certificate, Production Certificate and Certificate of Airworthiness. On the other hand, aircraft components are mandated to receive Technical Standard Order Approval and Production Manufacture Approval before commercial use. As domestic aircraft and LRUs are currently under development, Bilateral Aviation Safety Agreement is promoted for the purpose of increasing aviation safety as well as foreign export. This paper describes the basic aircraft certification procedure and compares the difference in the certification system of US and Korea. Thorough this, it is attempted to suggest a requirements for establishing international certification system.

• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.45 no.7
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• pp.566-573
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• 2017

A type certificate is required to ensure the safety of aircraft design. If a person is to pursue major design change to the certified aircraft, an applicant has to apply for a new type certificate, an amended type certificate, or a supplemental type certificate appropriately. Design changes to be applied for a supplemental type certificate are abstractly defined in ICAO, FAA, and EASA regulations. In this paper, authors reviewed certification procedures regarding design changes, analysed certification examples of leading countries, and presented the criteria to determine "major design changes not extensive" for a supplemental type certificate.

• The Korean Society of Law and Medicine
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• v.14 no.2
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• pp.49-80
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• 2013

The Issuance of false medical certificates on Criminal Law or the Medical Service Act are frequently applied to the insurance fraud cases related with the medical certificate, prescriptions. The meaning of medical certificate is not defined on the crime of Issuance of false medical certificates, but considering the rule of Paragraph 1 of Article 17 of the Medical Service Act, which punishes drawing up the medical certificate by anyone except the doctor who has directly examined, and the principle of legality, the medical certificate applied with the crime of Issuance of false medical certificates should (1) include the judgment after current medical ex-amination, (2) be written for the purpose of verifying the health status and (3) have a style that can be recognizable as medical document usually written by doctors. In addition, since there have been many argues on the range of application of the Paragraph 1 of Article 17 of the Medical Service Act, which generally regulates various kinds of documents such as medical certificates, prescriptions and others, which have different purpose and characters, the range of application of the clause above is needed to be interpreted strictly.

• International Commerce and Information Review
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• v.10 no.1
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• pp.155-174
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• 2008

This study wished to inspect about certificate of origin issuance authorities subject in certificate of origin issuance mode by spread of FTA, and investigate about improvement plan of current certificate of origin issuance authorities choice for smoothness trade business our country in FTA age to be expanded gradually. Fundamental purpose and meaning of FTA strengthen industry competitive power of two countries because expand trade and investment between the agreement conclusion country, and is expected to esteem agreement target department's estimation at FTA certificate of origin issuance subject choice because is meaning that strengthen trade competitive power, and raise trade company's convenience. Therefore, our country FTA representative authorities is recognized authoritativeness and stability from trade company and trade connection authorities, and is suitable in legal application or institution that can propel with consistency about policy propelled hereafter has to be chosen, FTA agreement country is representative authorities that recognize, and to issue from customs services which is a government agency which can progress business is place of origin issuance business and the place of origin examination, is expected to become more and more effective.