• 한국철도학회:학술대회논문집
• /
• 한국철도학회 2011년도 정기총회 및 추계학술대회 논문집
• /
• pp.807-814
• /
• 2011

Certification of product means that the process and result in which the verification of required performance of each product was done. For this, advanced countries have established their product certification system. This paper summarize the status of foreign railway product certification system and give out meaningful considerations. Moreover, problems of domestic railway product certification system will be discussed and requirements for the improvement of the system will be proposed.

• 통상정보연구
• /
• 제6권2호
• /
• pp.85-105
• /
• 2004

International electronic commerce is different with international commerce in the aspect using electronic media and non-face transaction so there are some problems as authentication, integrity and non-reputation. These problems of electronic document and signature are resolved from electronic certification system. To introduce and develop the electronic certification in the international electronic commerce, it needs to authorize and operate certification authority under the uniform regulation base. But, because the laws and guidelines that related to electronic certification system are different among the nations and international organizations, it needs to compare each nation's law or guideline. In conclusion, to resolve problems of certification and develop certification system in the international electronic commerce, we make uniform rule of international electronic certification and harmonize the technology of electronic certification.

• 한국신재생에너지학회:학술대회논문집
• /
• 한국신재생에너지학회 2010년도 춘계학술대회 초록집
• /
• pp.238.1-238.1
• /
• 2010

Researches and developments of tidal energy converters are close to commercialization stage. But, commercialization of tidal energy converters is not ready in korea. In Europe, many experts of company, laboratory and public institution involved in marine energy are active for commercialization of marine energy converters in European Marine Energy Centre. Furthermore, in IEC/TC114, standardization of technical standards for assessment and certification of tidal energy converters of each country is under discussion. Therefore, We have to prepare for commercialization, standardization and entry into the overseas market. In this study, trends of commercialization and standardization of international markets of marine energy converters are investigated and certification schemes of overseas are analyzed. We expect that this study will make contribution to establish the foundation of commercialization of tidal energy converters.

• 한국전자거래학회지
• /
• 제10권1호
• /
• pp.121-134
• /
• 2005

MANET( Mobile Ad Hoc Network)은 노드들의 자유적인 이동을 지원하고, 고정된 인프라에 의존하지 않으며, 신속한 네트워크 구축이 가능한 점 등 다양한 장점들이 있는 반면 보안에 있어서는 많은 문제점이 존재한다. 특히 보안에 있어서 기존의 전통적인 인증서비스는 안전성, 확장성, 가용성 등의 이유로 MANET 환경에는 적용하기 어렵다. 본 논문에서는 MANET상의 인증서비스에서 Secret Sharing방식과 Threshold Digital Signature방식을 이용하여 안전하고, 효과적인 분산 인증서비스를 제안하였다. 제안된 분산 인증서비스 방안에서는 MANET을 구성하고 있는 모바일 노드들 중 일정한 수량의 안전성이 비교적 높은 노드들을 특권노드로 설정하고, 이러한 특권노드들로부터 인증서 발급이 진행된다. 인증서발급의 역할을 특권노드들에게 부여한 분산 인증시스템은 기존의 Centralized Architecture, Hierarchical Architecture에서 노드 하나의 침해로 인해 네트워크 전체의 보안에 손상을 입히는 문제점을 해결하였으며, 개인키에 대한 부분 비밀정보들을 가지고 있는 노드의 수가 줄어들면서 기존의 Fully Distributed Architecture에서의 개인키 노출 위험성을 줄여준다. 네트워크 시뮬레이션을 통해서 제안한 인증서비스 방식의 성능, 가용성을 평가하였으며, 시스템 파라메타간의 관계를 분석하였다.

• 한국정보시스템학회:학술대회논문집
• /
• 한국정보시스템학회 2001년도 추계학술대회 발표논문집:차세대 전상거래 시대의 비즈니스전략
• /
• pp.158-165
• /
• 2001

The certification of software products can provide a greater level of acceptance and feeling of security to customers of these products. This paper presents a certification method for the quality of package software. First of all, the evaluation criteria are derived from ISO/1EC 9126 and 12119 standards, and then the evaluation module are designed considering the measurement scale type. The results can be applied to construct the certification scheme of software product quality for the commercial purpose.

• 대한안전경영과학회:학술대회논문집
• /
• 대한안전경영과학회 2002년도 춘계학술대회
• /
• pp.193-197
• /
• 2002

The certification of software products can provide a greater level of acceptance and feeling of security to customers of these products. This paper presents a certification method for the quality of package software. First of all, the evaluation criteria are derived from IS0/1EC 9126 and 12119 standards, and then the evaluation module are designed considering the measurement scale type. The results can be applied to construct the certification scheme of software product quality for the commercial purpose.

• 대한안전경영과학회지
• /
• 제4권1호
• /
• pp.93-103
• /
• 2002

The certification of software products can provide a greater level of acceptance and feeling of security to customers of these products. This paper presents a certification method for the quality of package software. First of all, the evaluation criteria are derived from ISO/IEC 9126 and 12119 standards, and then the evaluation module are designed considering the measurement scale type. The results can be applied to construct the certification scheme of software product quality for the commercial purpose.

• 대한조선학회논문집
• /
• 제60권2호
• /
• pp.86-94
• /
• 2023

Tonnage taxation has contributed to developing the Korean maritime industry through tax relief for shipping companies. The current tonnage taxation relies on the net tonnage as an earning-capacity indicator in a merchant ship. Although the tonnage tax accords with horizontal equity, it does not match vertical equity because of the different taxable capacities of an individual company. Nowadays, maritime transport uses a dedicated vessel, and each shipping freight embeds a different value of time. It means the tonnage taxation regime should consider the added value of each shipping freight. Meanwhile, as the environmental regulations led by the International Maritime Organization are being strengthened, the Korean merchant fleet must be eco-friendly soon after. This study explores the alternative to renewing tonnage taxation by utilizing the Greenship certification and considering the ability-to-pay principle. Because the Greenship certification scheme encourages shipping decarbonization, maritime transport by a certified ocean-going vessel comes to be treated as an activity for the green economy. Special taxation for the green economy may contribute to shipping sustainability and market competitiveness.

• 한국산학기술학회논문지
• /
• 제12권12호
• /
• pp.5895-5901
• /
• 2011

본 논문에서는 An[7]이 제안한 스킴이 패스워드 기반 스마트카드를 이용한 사용자 인증 스킴에서 고려하는 보안 요구사항을 만족하지 못함을 보였다. 이러한 보안 취약점을 해결하기 위하여 해시함수와 ElGamal 서명기반의 개선된 사용자 인증 스킴을 제안한다. 제안한 사용자 인증 스킴은 패스워드 추측공격, 위장공격, 재전송공격에 대응할 수 있고, 순방향 비밀성을 제공하는 스킴이다. 제안한 스킴은 An의 인증 스킴과 비교할 때,계산복잡도는 별 차이가 없이 유사하나, 안전성은 상대적으로 효율적임을 알 수 있다.

• 한국산림과학회지
• /
• 제96권2호
• /
• pp.183-188
• /
• 2007

This study was carried out to examine the perceptions of consumers and forest product manufacturers in South Korea about forest certification and to identify their willingness-to-pay for certified products by personal interviews. Sixteen percent of interviewees knew and heard about forest certification. However, fifty-six percent of interviewees had an intention to participate in forest certification system. The consumers' group can be described in relative terms as the male of 30 age bracket. The average price premium charged to consumers was higher than one paid to manufacturers, and thus manufacturers are willing to include the additional costs for certified products.