• ETRI Journal
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• v.39 no.1
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• pp.135-144
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• 2017

Recently, mobile phones have been recognized as the most convenient type of mobile payment device. However, they have some security problems; therefore, mobile devices cannot be used for unauthorized transactions using anonymous data by unauthenticated users in a cloud environment. This paper suggests a mobile payment system that uses a certificate mode in which a user receives a paperless receipt of a product purchase in a cloud environment. To address mobile payment system security, we propose the transaction certificate mode (TCM), which supports mutual authentication and key management for transaction parties. TCM provides a software token, the transaction certificate token (TCT), which interacts with a cloud self-proxy server (CSPS). The CSPS shares key management with the TCT and provides simple data authentication without complex encryption. The proposed self-creating protocol supports TCM, which can interactively communicate with the transaction parties without accessing a user's personal information. Therefore, the system can support verification for anonymous data and transaction parties and provides user-based mobile payments with a paperless receipt.

• Journal of the Korea Society of Computer and Information
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• v.22 no.4
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• pp.83-90
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• 2017

In the past, when the credit card was delivered to the customer, the postal agreement and receipt were signed by customer. The repossessed documents were sent back to the card company through the reorganization process. The card company checks the error by scanning and keeps it in the document storage room. This process is inefficient in cost and personnel due to delivery time, document print out, document sorting, image scanning, inspection work, and storage. Also, the risk of personal data spill is very high in the process of providing personal information. The proposed system is a service that receives a postal agreement and a receipt to a recipient when signing a credit card, signing the mobile image instead of paper, and automatically sending it to the card company server. We have designed a system that can protect the cost of paper documents, complicated work procedures, delivery times and personal information. In this study, we developed 'u-paperless' and secure credit card delivery system applying electronic document and security system.

• Journal of Information Technology Services
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• v.17 no.2
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• pp.35-47
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• 2018

An electronic receipt (e-receipt) is a receipt issued electronically in place of a traditional paper receipt. This e-receipt, which can be accessed on a smartphone or online, allows for the exchange of goods, refunds, and other services without a paper receipt. The government is focusing on widespread dissemination of e-receipts to realize a society without paper by 2020. Introduction of the e-receipt has begun in mainly large marts and coffee shops, and recently, major franchise convenience stores. As a result, individual customer's transactions are being converted into electronic transactions, and the payment methods are changing to card-based electronic payment services or prepaid electronic payment services. The number of non-paper commercial transactions are also on the increase. In this paper, we try to identify the e-receipt industry ecosystem by analyzing the industries and markets participating in the process of receipt issuance from the perspectives of storage, management and disposal, and to analyze the domestic industrial and social economic effects expected from the spread of electronic receipts.