PAYMENT SYSTEM FOR HCE MOBILE DEFERRED PAYMENT TRAFFIC CARD USING TRUST ZONE

摘要

The present invention relates to a payment system for a host card emulation (HCE) mobile deferred payment traffic card using a trust zone. The payment system for an HCE mobile deferred payment traffic card using a trust zone is to overcome security weakness which an existing HCE-based mobile traffic card has by using a security execution environment. The payment system for an HCE mobile deferred payment traffic card using a trust zone comprises: a mobile terminal activating an NFC function by activating HCE, responding to payment by a payment limit balance stored in the security execution environment when the payment is requested by a payment terminal, and checking limit accumulation and an encryption key; and an operation server transmitting a traffic card number and information on the encryption key and management of a mobile terminal number to the mobile terminal and renewing limit accumulation sum information on the traffic card, stored inside when information on an accumulated and used sum is received from the mobile terminal. The payment system for an HCE mobile deferred payment traffic card using the trust zone can solve the security weakness in accordance with the properties of the mobile terminal by storing limit sum information and important card information in the security execution environment and frequently transmitting data related to the stored information to the operation server and synchronizing the data.;COPYRIGHT KIPO 2018