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:
May. 07, 2019

Filed:

Aug. 01, 2018
Applicant:

Protegrity Corporation, Grand Cayman, KY;

Inventors:

Ulf Mattsson, Cos Cobs, CT (US);

Zvika Ferentz, Rye-Brook, NY (US);

Assignee:

Protegrity Corporation, Grand Cayman, KY;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 29/06 (2006.01); G06F 21/33 (2013.01);
U.S. Cl.
CPC ...
H04L 63/0428 (2013.01); G06F 21/335 (2013.01); H04L 63/04 (2013.01); H04L 63/08 (2013.01); H04L 63/0807 (2013.01); H04L 2463/101 (2013.01);
Abstract

A client receives sensitive data to be tokenized. The client queries a token table with a portion of the sensitive data to determine if the token table includes a token mapped to the value of the portion of the sensitive data. If the mapping table does not include a token mapped to the value of the portion of the sensitive data, a candidate token is generated. The client queries a central token management system to determine if the candidate token collides with a token generated by or stored at another client. In some embodiments, the candidate token includes a value from a unique set of values assigned by the central token management system to the client, guaranteeing that the candidate token does not cause a collision. The client then tokenizes the sensitive data with the candidate token and stores the candidate token in the token table.


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