DYNAMIC TOKENIZATION WITH MULTIPLE TOKEN TABLES
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United States of America Patent
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Issued Date -
Apr 2, 2015
app pub date -
Sep 30, 2013
filing date -
Sep 30, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
Sensitive data is accessed by a tokenization system. The sensitive data includes a first portion and a second portion. A token table is selected from a plurality of dynamic token tables based on the second portion of the received data. The selected token table is queried with the first portion of the sensitive data. If the selected token table includes a token mapped to the value of the first portion of the sensitive data, the first portion of the sensitive data is replaced with the token to form tokenized data. If the selected token table does not include a token mapped to the value of the first portion of the sensitive data, a token is generated, the sensitive data is tokenized with the generated token, and the generated token and association with the value of the first portion of the sensitive data is stored in the selected token table.
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