| Summary: | 碩士 === 南臺科技大學 === 資訊管理系 === 106 === This research is about discussing the current process of secure electronic transactions and improving the transaction model through efficiency and security, which are the features of electronic transactions. In order to increase the payment process efficiency of mobile payment and the securities of traditional electronic transactions, this research proposes a strategy of one-time barcode key certificate system. Based on Android mobile operating system and Eclipse cross platform, this research developed a system of secured payment of mobile transactions. Consumers can use the one-time barcode generated from mobile devices to complete purchase. The information contained in QR Code are certificate cipher text when transactions verifying and payment time. The certificate cipher text are encrypted as the time of processing transactions with private key, therefore two dimensional barcode will change under circumstances of different transacting time. When the seller scans the barcode and acquires information of the purchaser, the information will be delivered to payment gateway for verification and sent to the acquirer for requiring authorization of processing transactions after the information is verified, the transaction will be completed when the authorization is permitted. This system assures the barcode is transported securely in effective transaction time, even though the barcode is misused or skimming by criminals, the information of barcode holders will not be released into public. This research simplifies the transaction process that was used to be complex and increase the efficiency to complete transactions and in the mean while the security of transaction processing.
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