Registers – Systems controlled by data bearing records – Mechanized store
Reexamination Certificate
2011-07-12
2011-07-12
Le, Thien M. (Department: 2887)
Registers
Systems controlled by data bearing records
Mechanized store
C235S375000, C235S380000, C235S382000, C235S382500, C235S451000, C235S487000, C235S492000, C705S050000, C705S051000, C705S064000, C705S065000, C705S066000, C705S067000, C705S075000
Reexamination Certificate
active
07975916
ABSTRACT:
The claimed subject matter relates to an architecture or arrangement that can limit access to sensitive information by means of encryption. In particular, data obtained from a payment instrument at, e.g., a Point-Of-Sale (POS) location can be encrypted at an early stage such that a POS (or another) application does not have access to the data in an unencrypted form and/or does not have access to a means for decrypting the data. For example, a Public Key Infrastructure (PKI) arrangement can be employed such that a back-end payment processor can define encryption algorithms, associate itself with a public key, and maintain a private key for decryption. The public key can be delivered to the POS location and employed for data encryption, and, moreover, the PKI can be regulated by the more trusted parties.
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Bykov Sergey
Jensen Craig
Williams Charles J.
Le Thien M.
Microsoft Corporation
Turocy & Watson LLP
Vo Tuyen K
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