• Journal of Korea Multimedia Society
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• v.7 no.12
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• pp.1719-1728
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• 2004

The fusion of Internet technology and applications with wireless communication provides a new business model and promises to extend the possibilities of commerce to what is popularly called mobile commerce, or m-commerce. In mobile Internet banking service through wireless local area network, security is a most important factor to consider. We describe the development of security service for mobile Internet banking on Personal Digital Assistants (PDAs). Banking Server and Authentication Server were developed to simulate banking business and to support certificate management of authorized clients, respectively. To increase security, we took hybrid approach in implementation: symmetric block encryption and public-key encryption. Hash function and random number generation were exploited to generate a secret key. The data regarding banking service were encrypted with symmetric block encryption, RC4, and the random number sequence was done with public-key encryption. PDAs communicate through IEEE 802.IIb wireless LAN (Local Area Network) to access banking service. Several banking services and graphic user interfaces, which emulatedthe services of real bank, were developed to verity the working of each security service in PDA, the Banking Server, and the Authentication Server.

• The Journal of Society for e-Business Studies
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• v.18 no.4
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• pp.273-299
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• 2013

This study attempts to identify user perceived value as a major predictor of the usage of smartphone-based mobile commerce(m-commerce). More specifically, the study conceptualizes user perceived value of smartphone-based m-commerce along three dimensions, such as temporal, functional, and economic values. Moreover, this study proposes service ubiquity and user control that are uniquely defining characteristics of smartphone-based m-commerce and examines how the two variables are associated with the creation of user perceived value. Using a total of 164 data collected on users of smartphone-based mcommerce, we conducted PLS analysis to test the proposed model and hypotheses. The key findings are as follows : First, it has been found that the usage of smartphone-based m-commerce is determined by the three values, such as temporal, functional, and economic values. Particularly, the results show that temporal value is the most influential variable in predicting m-commerce use. Second, the results demonstrate that service ubiquity has a significant positive effect on temporal value, whereas it has no effect on functional value. Finally, user control is positively associated with temporal and functional values. Overall, the results indicate that service ubiquity and user control considerably increase temporal value, thereby accelerating the use of smartphone-based m-commerce. Discussions and implications of the results are provided.

• Management & Information Systems Review
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• v.33 no.2
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• pp.63-79
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• 2014

This study is based on the previous studies on m-commerce features, found factors that affects reliability and user's intention. After that, it examined how these factors influence the relationship between reliability and user's intention. In addition, this study showed that some factors have different influence on Korean and Chinese users in terms of reliability and user's intention. The main results of this study are as follows: (1) Personal innovation attributed to reliability in both Korea and China. Personal innovation also attributed to user's intention in Korea. (2) Localization, reach ability, security, and convenience had different influence on use and reliability in the two countries. (3) And the influences between reliability and user's intention are all positive both in Korea and China. Based on the result of this empirical study, this study reveal some implications for the firms that running with mobile business in both Korea and China.

• International Commerce and Information Review
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• v.7 no.4
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• pp.287-303
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• 2005

Mobile Business Companies open its music service and enters into the contents market. The entry of mobile business companies will be able to give diverse benefits to consumer. But, M&A between mobile business companies and contents companies may bring decreasing effect of number of creative industries. For the protection of small company producing cultural contents in contents market, fair transection competition order should be improved as soon as possible.

• The Journal of Society for e-Business Studies
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• v.8 no.1
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• pp.71-83
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• 2003

Nowadays on-line services based on Internet are being popularized and there are lots of E-Commerce applications using Internet. So we can use lots of information on anytime. To maximize the convenience of the network, the platform of the service is moving from E-Commerce to M-Commerce. In this paper we developed the application system for mobile environment. Therefore applicants can apply their applications and see the competition rate of the applying departments anytime and anywhere even if in the network disconnection regions. And we can manage more economically the application system because we use the network only the time when we syncronize the mobile device to mobile server.

• Journal of Intelligence and Information Systems
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• v.14 no.3
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• pp.87-108
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• 2008

Recently, commerce paradigm is developing to e-commerce, mobile commerce, and ubiquitous commerce(u-commerce). While many companies consider to adopt u-commerce, they have a task to solve this problem. The typical consideration is to derive the critical success factors for u-commerce. By the literature survey, this paper suggests the critical success factors for e-commerce business and off-line business to transform to u-commerce environment. We find significant variables to contribute the management performance by analyzing the cause and effect relationship.

• Proceedings of the Korean Information Science Society Conference
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• 2003.04d
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• pp.34-36
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• 2003

모바일 관련 기술의 발달로 인하여 국ㆍ내외의 않은 업체들이 M-Commerce 서비스를 제공하고 있다. 하지만 모바일 폰은 데스크톱 PC에 비하여 처리 능력이 훨씬 떨어지고, 디스플레이 화면도 매우 작다. 이와 같은 모바일 폰의 제약사항으로 인하여 인터넷상의 상품정보를 활용하지 못하고 별도의 무선 사이트를 구축하여 서비스하고 있다. 이러한 방식은 자원의 중복을 초래하기 때문에 매우 비효율적이다. 논문에서는 먼저 우선 폰을 위한 상품 정보 표현 모델을 설계하고, 이 모델을 매개로 하여 E-Commerce와 M-Commerce간의 상품 정보 호환을 가능하게 하는 시스템을 고려한다. 다음에 모바일 폰에서 인터넷 상의 상품 정보를 효과적으로 디스플레이하는 방법을 제안하고 이를 구현한다.

• Proceedings of the Korean Information Science Society Conference
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• 2002.10c
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• pp.568-570
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• 2002

무선 전자상거래(M-Commerce)는 이동 통신 네트워크 기술과 무선 단말기를 기반으로 하여 언제 어디서나 필요한 시점에서 행할 수 있는 상거래를 의미하며 이때, 전자지불 방식의 하나인 전자화폐는 실물화폐와 유사한 성질을 만족해야 한다. 본 논문에서는 이산대수문제에 기반한 메타-메시지 복원과 은닉 서명 기법을 이용하여 전자화폐가 이중사용, 돈 세탁 그리고 불법 무기 구매 둥 부정한 수단으로 악용되었을 때 신뢰센터가 사용자의 익명성을 제어하고 지불 금액을 다시 복원할 수 있는 알고리즘을 제안한다.

• The KIPS Transactions:PartD
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• v.10D no.6
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• pp.1033-1040
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• 2003

In order to provode information services on M-Commerce, a payment solution with security function should be required. User's mobile terminals for using M-Commerce services are diversifying to cellular phone, PDA, Smart phone etc. Among them, intergration of PDA's interface and mobile connection overcomes the weak point of existing cullular phone depending on information via the internet. In this paper, the protocol for a credit card transaction on PDA using ECC is presented. Secure Card module on this protocol encrypts user's information such as private information, delivery information and credit card information and store them on PDA in order to free from inputting information whenever it is used. This scheme also offers security services on M-Commerce including authentication, confidentiality, integration, non-repudiation and so on.

• The KIPS Transactions:PartD
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• v.10D no.3
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• pp.559-566
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• 2003

As cell phone and PDA have been in common use recently, there is a growing tendency to utilize the mobile terminals for M-Commerce. The information security and the receipt of e-trade are very important to support reliable digital transactions in wireless environment as in wired environment. Even though some work such as WML digital signature and WPKI has been studied for M-Commerce, there are several problems on the aspects of the functional limitation of the mobile terminals and the unsecure data transformation of WAP gateway. In this study we have designed and implemented a prototype system of issuing and verifying the electronic receipt that guarantees authentication, data integrity and non-repudiation for secure mobile e-commerce. Moreover, we have enhanced the system performance by letting the trusted independent server verify and manage the electronic receipt.