The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 01, 2024

Filed:

Oct. 18, 2023
Applicant:

Mastercard International Incorporated, Purchase, NY (US);

Inventors:

Bryn Anthony Robinson-Morgan, Mosborough Village, GB;

Liang Tian, Rye Brook, NY (US);

Prashant Sharma, Madison, NJ (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 21/62 (2013.01); G06F 11/14 (2006.01); G06F 21/32 (2013.01); G06F 21/60 (2013.01); G06F 21/78 (2013.01); G06F 21/10 (2013.01);
U.S. Cl.
CPC ...
G06F 21/6218 (2013.01); G06F 11/1464 (2013.01); G06F 11/1469 (2013.01); G06F 21/32 (2013.01); G06F 21/602 (2013.01); G06F 21/78 (2013.01); G06F 21/107 (2023.08);
Abstract

Systems and methods are provided for backing up a data file. One example computer-implemented method includes generating an L4 key and, for each contact attribute of the data file, generating an L3 file including the L4 key and an identifier of a user and encrypting the L3 file with an un-masked version of the contact attribute. The method also includes compiling the encrypted L3 file(s) and the masked version(s) of the contact attribute(s) into an L2 file, generating an L2 key, encrypting the L2 file with the L2 key, compiling the encrypted L2 file and L2 key into an L1 file, generating an L1 key, encrypting the L1 file with the L1 key, compiling an L4 file to include identity attributes of the user, encrypting the L4 file with the L4 key, and combining the encrypted L4 file and the encrypted L1 file.


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