Patent · US Active

Table-connected tokenization

US9237006B2 · kind B2 · utility

13Cited by

4References

20Claims

0Family size

Assignee

PROTEGRITY CORPORATION · KY

Inventors

Ulf Mattsson · Stamford, US
Yigal Rozenberg · Wilton, US
Vichai Levy · Norwalk, US

Key dates

Filing date	Sep 30, 2013
Grant date	Jan 12, 2016
Priority date	—
Expiry date	Jan 25, 2034

Classification

Technology area (CPC H)Electricity
CPC primaryH04L63/20
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A tokenization system tokenizes sensitive data to prevent unauthorized entities from accessing the sensitive data. The tokenization system accesses sensitive data, and retrieves an initialization vector (IV) from an IV table using a first portion of the sensitive data. A second portion of the sensitive data is modified using the accessed initialization vector. A token table is selected from a set of token tables using a third portion of the sensitive data. The modified second portion of data is used to query the selected token table, and a token associated with the value of the modified second portion of data is accessed. The second portion of the sensitive data is replaced with the accessed token to form tokenized data.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.