• The Journal of the Korea Contents Association
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• v.19 no.5
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• pp.426-442
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• 2019

This study identifies possible determinants that may have influences on the switching behavior from the current payment system of credit or check cards to the easy payment service based on push-pulling-mooring model. And this research empirically tests how those determinants affect switching intention to the easy payment service. The moderating effect of policy expectation is also taken into account. The findings show switching intention to the easy payment service is influenced by the followings: dissatisfaction with the current payment system as a pushing factor, perceived easy of use and trust in easy payment service as pulling factors, and affective/cognitive inertia and unfavorable subjective norm as mooring factors. The results also show that moderating effect of policy expectation exists in the relationship between perceived ubiquitousness and switching intention.

• Journal of Convergence for Information Technology
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• v.9 no.4
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• pp.48-58
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• 2019

Recently, companies that have already the brand familiarity based on IT technology are changing the way of financial transactions by providing mobile simple payment service. It is difficult to apply the results of research conducted on traditional financial products, although the familiarity of the brand positively affects the brand attitude and intention of use in the preceding studies. To confirm this, this study verified whether mobile simple payment services of a company with high brand familiarity can copy the service easily and have intention of use through advertisement acceptance. The empirical results showed that the advertising of brand with high familiarity could be a motivation factor to imitate new services more easily. This results is meaningful in that it confirms the importance of strategic advertising because the more higher the brand's familiarity is, the more efficient the advertising can be used in the mobile simple payment service.

• Management & Information Systems Review
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• v.35 no.3
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• pp.23-36
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• 2016

As a new alternative to cash and credit-cards, mobile payment has been attracting world's attention. Although fin-tech, a mobile payment system provider, has been a rising issue, mobile payment systems is not yet widely used domestically. Because trust is the most important element in revitalizing the mobile payment system, we hoped to develop a hierarchical trust model to analyze the multi-dimensional trust factor. In this study, surveys were conducted to identify the components that affect the overall trust of a mobile payment system. It has been concluded that cognitive trust, affective trust, trust in system quality affect the overall trust of the system, and this trust affects the continuance intention of users.

• Proceedings of the Korean Society of Computer Information Conference
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• 2020.07a
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• pp.211-213
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• 2020

최근 중국 시장에서 모바일 결재 서비스이 사용량이 매우 증가하고 있으며, 세계 모바일 결재 시장에서 1위를 차지하였다. 모바일 간편 결제란 일반적으로 재화, 서비스 이용에 연관된 결제를 모바일 단말기로 처리하는 것을 말하는데. 고객들의 수요를 만족시켜 사용도를 높이고 고객충성도를 효과적으로 배양하고 끌어올리는 것은 각 모바일 간편결제 서비스 플랫폼들의 초미의 관심사가 되었다. 이에 본 논문에서는 중국 모바일 간편결재 서비스품질과 기술수용모델이 고객만족도와 재사용의도에 미치는 영향을 살펴보았다. 그리고 유형별 분석결과에 대한 차이가 있는지 살펴보았다. 먼저 선행연구를 바탕으로 연구모형 및 연구가설을 설정하고, 중국의 고객들을 대상으로 250명을 대상으로 설문조사를 실시하였고, SPSS 19.0 통계분석 프로그램을 사용하여 실증분석을 하였다.

• Proceedings of the Korea Information Processing Society Conference
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• 2015.10a
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• pp.817-820
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• 2015

본 논문에서는 국내 모바일 간편 결제 서비스 카카오페이(KakaoPay)의 보안취약점을 분석한다. 이를 위해, 본 연구에서는 모바일 간편 결제 서비스 키패드의 터치 좌표값을 추출하는 키로거 앱(key logger application)을 개발하였다. 키로거 앱을 이용해 사용자가 카카오페이 서비스의 비밀번호를 누를 때 비밀번호가 출력되는 화면 좌표값을 알아내고, 확률분석기법을 통해 추출한 화면 좌표값으로 결제용 비밀번호를 유추해냄으로써, 카카오페이 서비스의 보안 취약점을 도출하였다.

• Journal of Industrial Convergence
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• v.16 no.3
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• pp.33-40
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• 2018

Near Field Communication has been emerged as a spectacular phenomenon. The aim of this study is to determine the factors influencing the adoption of NFC-enabled mobile payment. In order to analyze, this study proposes a research framework based on Technology Acceptance Model. 353 valid data were collected through the Internet who has used NFC technology. Results show that relative advantage, social influence, and technology availability have a significant effect on perceived usefulness ($0.190{\ast}{\ast}{\ast}$, $0.211{\ast}{\ast}{\ast}$, $0.227{\ast}{\ast}{\ast}$respectively). However, for perceived ease of use, only relative advantage and social influence were verified to have significant influence. Perceived ease of use significantly influence perceived usefulness ($0.348{\ast}{\ast}{\ast}$), and both of them significantly affect the NFC-payment adoption intention ($0.199{\ast}{\ast}$, $0.361{\ast}{\ast}{\ast}$). The results also verified the moderator variable of personal innovativeness ($0.20{\ast}{\ast}{\ast}$ and $0.297{\ast}{\ast}{\ast}$respectively).

• Journal of Convergence Society for SMB
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• v.5 no.2
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• pp.33-38
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• 2015

The damage to the security is increasing as public key-based ISP secure payment service is used in online banking payment system. Security technology aspect to ISP secure payment security has no special problems. But, security damage that occurs due to the simplicity of the payment system is a problem. In this paper, we propose response and plan for ISP secure payment service to minimize the damage that occurs due to the simplicity of a security settlement system. Proposed scheme is applicable to various billing systems such as secure payments, online payment, mobile payment, credit card. Proposed scheme is characterized in that can stably support the capabilities of the new billing system. Also, proposed scheme is to analyze the various security threats arising from the payment of the financial services and to describe response and plan technology.

• The Journal of the Korea Contents Association
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• v.20 no.12
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• pp.492-497
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• 2020

Today, banks around the world are making great efforts to adapt to the rapidly changing internal and external environment changes caused by the development of IT technology and to gain a competitive advantage in the market. In particular, in line with the rapid growth of smartphone usage, financial services are also provided in a variety of ways using Fintech, and one of the fastest growing areas is mobile simple payment. Mobile payment service is a financial service that pays the purchase price using a portable mobile device. As fintech, a convergence of financial services and information technology, it is recently used not only in financial services, but also in various industries. It is used in all fields where payment functions such as distribution are available. In the case of mobile cards, it shows that the usage rate of people in their 20s and 30s is increasing very much, so it can be said that the use of mobile payment services will continue to increase in the coming future. We know that simple payments are being used. However, it can be said that the research on the use of mobile payment services by these teenagers is somewhat incomplete. Therefore, this study investigated what factors are important for Korean teenagers to use mobile payment services. As a result, among the five hypotheses presented in this study, all hypotheses were adopted except for , which states that cash usage habits have no effect on innovation.

• Proceedings of the Korea Information Processing Society Conference
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• 2015.04a
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• pp.468-470
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• 2015

ActiveX가 법규제로 인해 없어지고 새로운 간편 절제 시스템이 출시되고 있다. 새롭게 도입되는 간편 결제 시스템의 경우 사용자가 한 번 내려 받으면 인터넷 익스플로러뿐만 아니라 사파리나 크롬 등 다른 브라우저를 사용 시 따로 보안프로그램을 내려 받지 않아도 된다고 한다. ActiveX대신 새로운 결제 시스템의 'exe'방식의 프로그램은 한 번 내려 받아 영구 사용할 수 있으며, 이러한 'exe' 프로그램은 인증우회가 가능하여 해커가 제3자의 금융정보를 가지게 된다면 간단한 우회를 통한 공격이 가능할 것으로 예측된다. 본 논문에서는 이러한 인증우회 공격에 관한 시나리오 및 'exe'프로그램 내부의 보안프로그램에서의 이상 징후 조기 탐지를 이용한 사전 예방기법을 제안한다.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.26 no.3
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• pp.563-572
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• 2016

Recently, a plenty of credit card payment protocols have been proposed in Korea. Several features of proposed protocols include: using passwords for user authentication in stead of official certificate for authenticity, and no need to download additional security module via ActiveX into user's devices. In this paper, we suggest two new credit card payment protocols that use both SSL(Security Socket Layer) as a standardized secure transaction protocol and password authentication to perform online shopping and payment. The first one is for the case where online shopping mall is different from PG(Payment Gateway) and can be compared to PayPal-based payment methods, and the second one is for the case where online shopping mall is the same as PG and thus can be compared to Amazon-like methods. Two proposed protocols do not require users to perform any pre-registration process which is separate from an underlying shopping process, instead users can perform both shopping and payment into a single process in a convenient way. Also, users are asked to input a distinct payment password, which increases the level of security in the payment protocols. We believe that two proposed protocols can help readers to better understand the recent payment protocols that are suggested by various vendors, and to analyze the security of their payment protocols.