• Journal of the Korea Institute of Information Security & Cryptology
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• v.13 no.5
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• pp.129-136
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• 2003

A representative payment broker system is SET and one of its signature shcemes is a dual digital signature scheme. A dual digital signature scheme expose neither user's payment information(credit card number etc.) to merchandiser, nor user's order information to bank So it keeps user's Privacy safe. The digital signature scheme like this is being necessary as E-commerce is revitalized. But a dual digital signature of SET is not appropriate for wireless environments because it needs so many computations and communications. In this paper, we propose a signcryption scheme that generates a polynomial using a payment information for merchandiser and an order information for bank in order to reduce communications. We analyze the problem of existing signcryption schemes and dual digital signature schemes. Also we analyze the security properties of the proposed scheme.

• The Journal of Society for e-Business Studies
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• v.8 no.3
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• pp.219-239
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• 2003

The world of business is being profoundly transformed by the Internet and electronic commerce. E-commerce is driven by Internet and e-commerce technology. That is, the new e-commerce is commonly associated with highly developed technical elements, ranging from web , graphic design. payment systems and network infrastructure. Thus, it is necessary to decide which technologies are important and how they are related to each other. To anticipate the future of each information communication technology and electronic commerce accurately , we have attempted to develop a classification model of electronic commerce technology. A classification model for EC technologies consists of three categories: basic technology, base technology, and application technology. This model can play a role as a guideline in classifying EC technologies into three hierarchical category and in comparing the relative relationships of each electronic commerce technology. It will also provide an impetus for the study of electronic commerce technologies and for the shaping process of electronic commerce generally.

• 한국디지털정책학회:학술대회논문집
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• 2004.05a
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• pp.617-626
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• 2004

본 연구는 정보통신기술 (ICT)의 발달과 컴퓨터의 대중화 인터넷 보급의 확산 및 상거래의 온라인화 등으로 전자상거래가 확산되고 이와 더불어 급격한 규모로 성장되고 있는 전자지불 시스템을 분석하고자 한다. 과거 전자지불시스템 자체에 대한 기술적인 연구나 전자화폐 등 세부매체에 대한 연구는 상당히 많이 진행되어 왔으나 본 연구에서는 특히 소액 전자지불시스템을 세분하여 비교연구하기 위한 체계를 제시한다. 전자지불시스템을 자체의 특성에 따라 분류한 기존의 연구에 근거하여 사용자들이 각각의 지불매체에 대해 얼마나 다르게 인식하여 어떠한 태도를 가지고 있는지에 대한 연구체계를 제시한다. 특히 최근 이슈가 되고 있는 모바일 지불시스템 등 소액 중심의 결제시스템을 사용자가 선택하는 이유와 방식에 대해 결제매체의 특성을 중심으로 기존의 결제시스템과 비교하여 분석하기 위한 연구모형을 제시하였다. 본 연구에서 제시된 연구모델을 통해 향후 지불서비스 이용자들이 결제시스템을 이용하는 이유에 대해 이론적으로 체계적인 분석을 함으로써 은행 및 결제대행사 등 기존의 지불서비스 제공기관외에 이동통신사나 컨텐츠 제공업체, 포털서비스 업체 등 관련 기업과 전자지불관련 정책을 수립 집행하는 정부기관에 참고할 수 있는 연구 분석 결과 도출될 수 있을 것으로 예상한다.

• International Commerce and Information Review
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• v.3 no.2
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• pp.113-129
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• 2001

인터넷은 컴퓨터와 네트워크의 가상공간을 통하여 그 개방성과 뛰어난 확장성으로 전자상거래의 기본수단이 되고 있으며 경이로운 발전을 거듭하고 있다. 이에 따라 현재 전세계는 전자상거래가 폭발적으로 성장하는 시기를 맞이하고 있다. 일본에서도 최근 일본정부가 2005년까지 초고속인터넷을 3000만 가구에 보급할 계획을 세우고 있는 등 인터넷의 고속화가 빠르게 진전되고 있고, 이용자의 인터넷 접속요금도 저가격화로 변화함에 따라 전자상거래 이용지도 급속도로 증가할 것으로 예상된다. 그리고 TV를 이용한 게임기나 인터넷 전용머신이라는 컴퓨터 이외의 디지털기기로 인터넷을 이용하는 등 전자상거래 이용수단도 다양화될 것이며, 또한 디지털 텔레비전과의 제휴를 통하여 디지털데이터방송을 활용한 전자상거래도 활발히 이루어질 전망이다. 이에 따라 일본의 전자상거래시장의 급속한 성장과 함께 결제수단도 다양화되고 있다. 전자상거래의 결제수단으로서는 현금, 우편환, 은행입금, 수표 외 전자상거래의 특유의 결제수단이라고 할 수 있는 전자화폐, 인터넷뱅킹, E-Debit 등이 있다. 이 가운데 전자화폐는 일반적으로 유통성, 양도가능성, 범용성, 익명성 등 현금이 가지고 있는 기능을 갖추고 있을 뿐만 아니라 원격지송금성, 수송상의 비용절감, 금액의 분할 및 통합의 유연성, 전자성 등의 특징을 갖고 있으며 현금의 단점을 보완하는 기능도 있기 때문에, 앞으로 신용카드를 대체하는 차세대 전자결제수단으로 등장할 것이 확실시된다. 따라서 본고에서는 현재 일본 내의 다양한 주체들에 의하여 개발 실험되고 있는 전자화폐에 의한 결제시스템을 개관함으로써 우리나라에서도 일본과 같은 다양한 전자화폐에 의한 결제시스템의 개발 실험 도입이 절실함을 제안하였다.

• The Journal of the Korea Contents Association
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• v.6 no.12
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• pp.12-20
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• 2006

In this paper, we propose electronic payment protocol using GDHP blind signature scheme to activate e-business in the wire/wireless integrated environment. The protocol applied elliptic curve algorithm on the GDHP base and improved the efficiency of the existing blind signature technique on the basis of communication frequency and calculation number. And the protocol accelerated speed and strengthened safety against man-in-the-middle attacks and forward secrecy because the certification between individuals is performed by the session key created by Weil paring using elliptic curve cryptosystem in the limited entity $F_q$ instead of the certification used in the existing PayWord protocol.

• THE INTERNATIONAL COMMERCE & LAW REVIEW
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• v.47
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• pp.337-353
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• 2010

On payment of the insurance money the insurer is entitled to be subrogated to all right and remedies of the assured in respect of the interest insured in so far as he has indemnified the insured. The purpose of subrogation is to prevent the assured from recovering more than once for the same loss, e.g. where goods are lost owing to a collision, the assured cannot claim the insurance money from the insurer and then sue the owners of the ship that negligently caused the collision. Under the doctrine of subrogation the right to sue owners of the negligent ship passes from the assured to the insurer on payment of the insurance money. The insurer is subrogated to the assured 'rights against the carrier under the contract of carriage. To defeat the cargo underwriters' subrogation righters, the carriers inserted in their B/L a clause allowing the carriers to have the "benefit of the shipper's insurance. But, in the Hague Rules, Hamburg Rules, Rotterdam Rules, its makes void any clause that assigns a benefit of insurance of the goods in favour of the carrier. In practice the insurer asks the assured to sign a letter of subrogation and retains the documents in order to prosecute the rights subrogated to him.

• Journal of architectural history
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• v.8 no.1 s.18
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• pp.9-28
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• 1999

Broadly speaking, this paper is concentrated on the trimming of the wood demanded for the palace, constructed in the 2nd half of the Choseon Dynasty. To be concrete, this is the study on the craftman and craftmanship corncerned with the trimming of the wood, its system, and terms of payment of his wages, Construction reports, financial reports, job slips, written estimates, bills for payment, and other documents in those days are examined for the study. Following conclusions have been reached through the study. 1) The operation system of whole construction office and its suboffice was very specialized and systematized from the early 19th century. 2) The craftman engaged in trimming of the wood was subdivided by work function. 3) The craftman for its first trimming, i.e. 'keojang' or 'seonjang' had been treated as a speacial labor recruited to the mid-l8th century, after that, was enrolled into the craftman. 4) A unit cost of its first trimming was firstly appropriated into the reconstruction of the Kyongwoon Palace in the early 20th century, and it was very subdivided for a personnel management. 5) Contract works were widely applied to all workers engaged in the reconstruction for an efficiency of the accomplishments.

• Journal of Information Technology Applications and Management
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• v.21 no.3
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• pp.135-156
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• 2014

The Online business model for purchasing agent service is getting more popular. However, consumers perceive more risk when buying products from foreign online purchasing agents (FOPA) than from common online sellers (COS). This study focuses on finding out how consumers manage risk when they perceive risk and what different risk-reliever strategies they use when buying from high-risk FOPA and low-risk COS. This study has proved the following two. First, when consumers perceive risk at online purchasing, they tend to select risk-reliever strategies, such as the use of communication media, online assurance mark, seller's record, and secure payment to mitigate risk. With the application of those risk-reliever strategies, they built trust with the seller. Second, risk-perception of FOPA influences usage of communication media and check of online assurance mark more strongly than that of COS. On the contrary, risk-perception of COS influences the check of seller record more strongly than that of FOPA. This study helps to explain why FOPA is proliferating, despite its inherent high risk due to the fact that buyers and sellers are separated in time and space and that buyers and sellers have different social and cultural backgrounds. This study also helps managers of E-commerce to relieve consumer's risk-perception and to build trust.

• The Journal of Information Technology
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• v.8 no.3
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• pp.159-176
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• 2005

The Purpose of this Article is to analyze the special settlement and electronic settlement system in the international trade. First, Factoring is a fast, easy and flexible way to improve a company's cash flow and generate working capital for the company. Factoring can be short-term or part of an ongoing financing program. New companies can benefit as well, since there is no requirement for a long-term credit history. Second, Forfaiting is a method of trade financing that allows exporters to obtain cash and be free of all risks by selling their medium term receivables on a 'without recourse' basis. Forfaiting can be an alternative to export credit or insurance cover, especially for those transactions in which the export credit agency is not open to a particular country and/or bank. Third, The Bolero System is jointly financed by SWIFT(Society for World International Financial Telecommunications) which handles most of the electronic funds transfer for banks, and the Through Transport Mutual Assurance Association(the TT Club), a mutual insurance association most of whose members are drawn from the Multimodal transport industry or transport intermediaries. Fourth, TradeCard is a payment and settlement system that is an alternative to letters of crdeit. That is, TradeCard is a business-to-business e-commerce infrastructure that enables buyers and sellers to conduct and settle international trade transactions securely over the Internet.

• Journal of Korea Port Economic Association
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• v.39 no.1
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• pp.101-114
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• 2023

With the development of information and communication technology and the growth of e-commerce, the scale of international B2C transactions is expanding, and the scale of overseas direct purchase through online platforms will grow further in the future. However, with the growth of overseas direct purchase, the scale of illegal income is also growing, causing social problems. Under the current Customs Act, if a purchasing agent falsely provides a customs value and a shortage of tax occurs, the purchasing agent and the consumer, the shipper at the time of import declaration, are jointly and severally liable for tax payment. enemy improvement is needed This study proposed opinions on the problem of consumer damage caused by purchasing agents and institutional improvement in the Customs Act to solve it.