Keywords: Android, functionality, portability, presence system, QR Code. Indonesian people will be able to make payments overseas by simply scanning the QRIS code. Keywords Digital signature; QR code; elliptic curve cryptography; authentication. This study discusses One-Time Password installed on a mobile device where the password is randomized using a combination of two algorithms, namely SHA and Time-based One Time Password. The background of this research is to know the effectiveness of using QR codes for E-ticket payments in the ticket booking system in the transportation sector, by providing easy payments to the public, it will be able to facilitate ordering and payment of tickets, therefore it will be able to increase ticket sales. If you have any questions regarding the QRIS product, please leave a WhatsApp message via the input form below, we will always provide the best service for you. Thamer and B. Copyright and License Statement.
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