• The Journal of the Convergence on Culture Technology
• /
• v.9 no.4
• /
• pp.529-536
• /
• 2023

The secondhand market in Korea has been showing steady growth. However, the number of fraud cases and the amount of damages from fraudulent activities in secondhand transactions are also increasing. As of 2021, the size of the secondhand market reached 24 trillion won, but the total amount of fraud-related damages reached 360.6 billion won. In order to prevent fraud between individuals, secondhand trading platforms have implemented a safety payment system. However, new types of fraud methods exploiting the safety payment system have emerged, undermining the security of secondhand transaction safety payments. In this study, we aim to utilize text mining to examine the current state of the safety payment system in secondhand transactions and propose improvement measures by analyzing the system through text mining and network analysis.

• The Journal of Information Technology
• /
• v.3 no.3
• /
• pp.77-88
• /
• 2000

Electronic Commerce increased rapidly according to the growing popularity of Internet. but payment system are not changed. Now main payment system of electronic commerce are credit card and cyber banking system. Then credit card has some problems safety, privacy etc, and cyber banking system has some problem also. We need new payment system to Electronic Commerce. The merit of electronic money are more capacity, more secure, more reliable, quick and easy to update, secure off-line processing, enabling technology etc than credit card and cyber banking system. And so many countries began using experiment of electronic money and our country began July KOEX building. But it has some problems (standardization, safety of payment, etc). Therefor we must make nile about electronic money in order to standardization and safety of payment. After then electronic money are used widely in electronic commerce.

• Journal of Digital Convergence
• /
• v.4 no.2
• /
• pp.127-142
• /
• 2006

This paper uses a Mobilans case based on software system to derive the results of our study. Recently, the mobile phone payment entered its matured stage and became most frequently used payment method in all internet sites. And, in order to prepare for the future ubiquitous market, every mobile phone payment methods has different speed of development, market status and target segments in the market. This paper also discusses about the background and current status of Korean mobile phone payment market using SMS(Short Message Service) to purchase items on internet which is growing sharply every year. Also, we try find the key factors to succeed in this growing market. In addition to safety, delayed payment and the immediateness for use of mobile phone, we also suggest that a highly developed hardware system is an additional factor under the increased demands for the convenience with various applications.

• Journal of the Korea Institute of Information Security & Cryptology
• /
• v.29 no.4
• /
• pp.753-773
• /
• 2019

CV(Connected Vehicle) technology provides safety-related services and user convenience-related services to vehicle. Safety-related services can cause privacy problem by continuously transmitting vehicle information to nearby vehicles or base stations. Therefore, safety-related services should provide vehicle anonymity for privacy protection. However, if convenience-related services such as payment services fail to provide vehicle anonymity, driver information related to safety-related services may also be leaked. In this paper, we design a payment protocol based on ECQV(Elliptic Curve Qu-Vanstone) impicit certificate and group signature that provides BU-anonymity and traceability. The proposed payment protocol makes it impossible to track vehicles from payment transactions history by separating roles of payment system components. Moreover, we define the security requirements that the vehicle payment protocol must satisfy and show that the protocol satisfies the requirements.

• Proceedings of the Korea Inteligent Information System Society Conference
• /
• 2005.11a
• /
• pp.226-233
• /
• 2005

Ubiquitous computing is a study area explained in a myriad of contexts and technological terms. So when you try to define it with simple words, it gets even more confusing. Payment. however, refers in nature to an act of money transfer from one entity to another, and it is obvious that a payment method will be valued as long as the transaction can be completed with safety no matter what technology was used. In the end, the key to U-payment is convenience and security in the transfer of financial information. The purpose of this paper is to find a desirable U-payment scheme by looking at the characteristics of seamlessness under the ubiquitous environments, Strong Personal Device, and peer-based if information transactions. We also propose U-SDT Protocol integrating critical technologies such as Radio Frequency Identification (RFID), Bluetooth, Personal Payment Device, Account Managing Application and Transaction ID as a way to make transactions between users seamless and secure better privacy protection.

• Journal of the Korea Society of Computer and Information
• /
• v.10 no.3 s.35
• /
• pp.189-199
• /
• 2005

Now it is increasing the necessity for micropayment system according to activation for trade on internet. Because of the reason, it is requesting safety for personal information as well as for payment cost. But current micropayment systems cannot support anonymity or have heavy overheads in payment process. This paper suggests a micropayment system to keep anonymity of users and also to keep payment cost safe. The proposed system is to use blind signature anonymous ID which is combined nonce with an encryption of personal information. It also keeps payment cost of users by reconfirmation payment cost and product from certification and increases the computational efficiency by using secret key and session key instead of public key.

• Journal of the Korea Institute of Building Construction
• /
• v.16 no.6
• /
• pp.553-560
• /
• 2016

Wage is a very important issue not only for the workers' current living but also for the future laboring landscape. As of 2014, it is reported that about 290,000 workers suffer from delay in payment of wage. The construction industry is particularly labor-intensive, which implies that delay in payment of wage is a serious problem. Despite this fact, in terms of the delayed payment of wage most studies have been conducted on the improvement of a system to resolve delayed payment in exclusion of labor workers' awareness and thinking. Thus, the purpose of this study is to understand construction labor' awareness and analyze the effectiveness of the resolution step of the delayed payment of wage based on construction labors' awareness. In the research result, more than 30 percent of all construction labors and managers are never aware of the settlement procedure of the delayed payment, and it appears that the resolution step system needs to be greatly improved. In conclusion, it is expected that this study will be utilized as fundamental data for the settlement procedure of the delayed payment, and the influence of delayed payment on construction labors' safety behavior and productivity should be further studied in the future.

• Journal of the Korean Society of Safety
• /
• v.13 no.3
• /
• pp.143-162
• /
• 1998

There are two ways to prevent labor from Industrial accident One is pre-prevention, another is compensation. Onless It happens the compensation problem from The pre-prevention, It will be best way to solve. To prevent lobar widely first, the application range should be wide which is base of repayment second, assoradiy to reconsideration of apportionment properly The Max-Min limitative cost of compensative should be paid, one the other hands, The lay-off payment of limitative and The fixed payment of Funeral should be introduce Third, The specialization of examination.

• The Korean Journal of Health Service Management
• /
• v.6 no.4
• /
• pp.143-152
• /
• 2012

This study analyzes Korea health panel data (2008) (beta version 1.2) of Korea Institute for Health and Social Affairs, and National Health Insurance Corporation to figure out determinants of healthcare expenditure. In result of Multiple Logistic Analysis, in-patents felt burden on the medical expenditure were 70.0%. As to the patients' payment of medical expenditure, patients over 65 years old had 4.765 times higher than those under 14 years, disabled patients 2.778 than non-disabled patients, chronic patients 1.632 times than non-chronic patients, patients belonging to 12 million won ~ 46 million won and under 12 million won in family income had 1.680 times and 2.168 times respectively than patients with over 46 million won, patients in professional recuperation facility 1.546 times than patients in hospital, patients in private medical institutions 1.700 times than patients in national and public medical institutions, patients using upper grade rooms 1.701 times than patients in non-upper grade rooms. As a health care safety net mechanism to protect people from medical expenditure burden, there is the patients' payment ceiling in the National Health Insurance System. Thus, in order to facilitate the patient's payment ceiling, it is required that the level of ceiling is to be specified according to the income level, and self-payment items is to be included.

• Asia pacific journal of information systems
• /
• v.9 no.1
• /
• pp.77-98
• /
• 1999

The purpose of this paper is to determine success factors important to electronic payment system and also to review its environments in order to present development direction of electronic commerce in Korea. A field survey including interviews and questionnaire surveys is made in 12 experts who were identified as having research experiences and/or development experiences of electronic payment systems, 35 merchants who are doing business over the Internet, and 96 netizens who were identified as a consumer group. In this study, we reviewed four dimensions affecting the acceptance of electronic payment systems such as safety, security, convenience, and efficiency. Finally, we suggested a total of 32 factors important to electronic payment systems and classified all factors into four dimensions.