System and method for selective encryption of input data during a retail transaction
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United States of America Patent
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May 31, 2011
Issued Date -
N/A
app pub date -
Aug 4, 2005
filing date -
Aug 4, 2005
priority date (Note) -
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Abstract
A retail environment having retail terminals with data entry point devices selectively encrypts input received by the data entry point devices and passes the encrypted data to a security module. The selective encryption is based on whether or not sensitive or confidential information, such as a personal identification number (PIN) associated with a debit card, is being input. To prevent hacking of the software of the retail terminal, content destined for display on the retail terminal is authenticated prior to display. In this manner, the retail terminal may be assured that confidential information is input only when desired, and thus may be encrypted only as needed.
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