Data processing: financial – business practice – management – or co – Automated electrical financial or business practice or... – Finance
Reexamination Certificate
2007-02-13
2007-02-13
Poinvil, Frantzy (Department: 3628)
Data processing: financial, business practice, management, or co
Automated electrical financial or business practice or...
Finance
C705S052000
Reexamination Certificate
active
09542676
ABSTRACT:
A device for facilitating financial account transactions is described which includes a processing unit including a cryptographic processor. The device also includes an input unit, a display unit and a memory device connected to the processing unit. The memory device contains a private cryptographic key, a first data element and a second data element. The processing unit encrypts the first data element using the private cryptographic key and the second data element, modifies the second data element, combines the encrypted first data element and the second data element to generate a single-use financial account identifier, and displays the single-use financial account identifier. This identifier is then transmitted to a central processor for authorization of the transaction. The central processor extracts and decrypts data elements from the transmitted identifier using the private cryptographic key, compares those data elements with data elements stored in a memory, and verifies the single-use financial account identifier in accordance with the comparison.
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Jindal Sanjay K.
Schneier Bruce
Tedesco Daniel E.
Walker Jay S.
Downs Michael D.
Poinvil Frantzy
Walker Digital, LLC
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