Patent ID: 11947812
Assignee: CAPITAL ONE SERVICES, LLC
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G

Claim 9:
10. The system of claim 9, wherein the memory stores instructions that when executed by the one or more processors, are configured to cause the system to:
receive, from a second user device, a second request for a listing of user names associated with a second user attribute;
receive, from the remote computing device, a second secret key that is based on a second user identifier associated with the second user device;
receive, from the remote computing device, instructions to use the first hashing algorithm;
generate a third plurality of hash values, wherein each hash value of the third plurality of hash values is based on a combination of an anonymized user identifier of the plurality of anonymized user identifiers each associated with a user name of the plurality of user names, one of the plurality of user attributes, and the second secret key;
determine a second subset of the first plurality of hash values that match the third plurality of hash values; and
transmit the listing of user names associated with the second subset of the first plurality of hash values to the second user device.