Patent ID: 11941591
Assignee: VISA INTERNATIONAL SERVICE ASSOCIATION
Field: IT methods for management (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 14:
15. A method comprising:
encrypting, using a processor, a first portion of a first account number, the first portion having less digits than the whole first account number, to form an encrypted account number portion, while leaving a remaining portion of the first account number unencrypted, the first account number being associated with a first expiration date and a first verification value;
determining a second account number based at least in part on a first segment of the encrypted account number portion and the remaining portion of the first account number;
determining a second expiration date based at least in part on a second segment of the encrypted account number portion, or determining a second verification value based at least in part on a third segment of the encrypted account number portion; and
participating in a transaction with respect to an account corresponding to the first account number utilizing the determined second account number, and the determined second expiration date or the determined second verification value in place of the first account number, and the first expiration date or the first verification value,
wherein (i) each segment of the encrypted account number portion contains less information than the whole encrypted account number portion and (ii) the first segment, and the second segment or the third segment of the encrypted account number portion form at least a portion the whole encrypted account number portion.