Patent ID: 11886414
Assignee: MASTERCARD INTERNATIONAL INCORPORATED
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 0:
1. A method comprising:
generating, by a first computer of a first system for each user within a set of users, a first customer key identifier using a predetermined key-generation algorithm utilizing a one-way hashing protocol based on a key-generation parameter and a first value from each of a first plurality of records stored in a first database of the first computer and each corresponding to a different transaction performed by the user;
transmitting, by the first computer of the first system, the key-generation parameter to a second computer of a second system;
generating, by the second computer of the second system for each user within the set of users, a second customer key identifier by applying the predetermined key-generation algorithm utilizing the one-way hashing protocol based on the key-generation parameter received via the first computer of the first system and a second value from each of a second plurality of data records stored in a second database of the second computer and each corresponding to the different transactions performed by the user, wherein the first values and the first plurality of records for the user match the second values and the second plurality of records for the user;
receiving, by the second computer, a set of data records, each respective data record associated with the first customer key identifier for each respective user;
when a value of the second customer key identifier is identical to a value of the first customer key identifier of at least one data record:
concatenating, by the second computer, binary data representing the second customer key identifier to binary data associated with the at least one data record; and
hashing, by the second computer, the concatenated binary data; and

responsive to determining, by the first computer, a match between the first customer key identifier from the first computer for a first user and the second customer key identifier from the second computer, attributing an analytics value generated by the second computer to the first user.