Mobile wallet systems and methods using trace identifier using card networks

A computer-implemented method performed by a mobile wallet bank computer system, comprising:

• generating, by a token generator of the mobile wallet bank computer system, a device token that identifies a mobile device associated with a user and a customer token that identifies the user to the mobile wallet bank computer system;
• encrypting, by the mobile wallet bank computer system, the device token and the customer token;
• transmitting, by a network interface logic of the mobile wallet bank computer system, the encrypted device token and customer token to the mobile device associated with the user;
• receiving, by the network interface logic of the mobile wallet bank computer system, a credential, the customer token, and the device token to initiate a mobile wallet session on the mobile device;
• validating and identifying, by the mobile wallet bank computer system, the user based on the received credential and the customer token;
• receiving, by the network interface logic of the mobile wallet bank computer system, an indication of a payment transaction from the mobile device during the mobile wallet session;
• verifying, by a transaction verification logic of the mobile wallet bank computer system in response to the indication of a payment transaction, that the received device token identifies the mobile device that provided the indication of the payment transaction during the mobile wallet session, the device token identifying the mobile wallet session and a particular function to be performed during the mobile wallet session;
• generating, by the token generator of the mobile wallet bank computer system, a second device token that identifies the mobile device to the mobile wallet bank computer system;
• encrypting, by the mobile wallet bank computer system, the second device token;
• transmitting, by the network interface logic of the mobile wallet bank computer system, the encrypted second device token to the mobile device during the mobile wallet session;
• identifying, by the transaction verification logic of the mobile wallet bank computer system, a source account associated with a payment card based at least in part on the received device token;
• generating, by the token generator of the mobile wallet bank computer system, a payment token identifying the source account associated with the payment card for the payment transaction;
• generating, by the token generator of the mobile wallet bank computer system, a trace identification number, the trace identification number configured to identify the payment transaction as a mobile wallet transaction to a card network computer system and to distinguish the payment transaction from a card present transaction, wherein a risk rating assigned to mobile wallet transactions is lower than a risk rating assigned to card present transactions such that a fee for the payment transaction is lower than a fee associated with the card present transaction;
• generating, by the token generator of the mobile wallet bank computer system, a payment code, the payment code including the payment token, an issuer identification number identifying an issuer of the payment card of the user for the payment transaction, and the trace identification number;
• transmitting, by the network interface logic of the mobile wallet bank computer system, the payment code to the mobile device;
• receiving, by the network interface logic of the mobile wallet bank computer system, the payment code from the card network computer system after having been routed via the mobile device, a merchant computer system, and an acquirer processor computer system to the card network computer system;
• and
• authenticating, by the transaction verification logic of the mobile wallet bank computer system, the payment transaction by matching:
• the trace identification number transmitted to the mobile device as part of the payment code with the trace identification number of the payment code received from the card network computer system;
• and
• the payment token transmitted to the mobile device as part of the payment code with the payment token of the payment code received from the card network computer system.