Method and system for securing data fields

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9070129
APP PUB NO 20090063354A1
SERIAL NO

12202978

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A merchant conducting a transaction on an account forms transaction data with a sensitive data field. To obscure the account prior to transmitting information about the transaction, for each character in the sensitive data field, a combined character is formed with a character of a generated pad. A replacement character is formed by a modulus operation on the combined character and is stored in the corresponding position in the sensitive data field. A transmission containing the sensitive data field with replacement characters is delivered to the merchant's acquirer.

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Patent Owner(s)

  • VISA U.S.A. INC.

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Sheets, John Foxe San Francisco, US 5 443
Wagner, Kim Sunnyvale, US 44 1150

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