Method and system for protection against parallel printing of an indicium message in a closed system meter
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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N/A
Issued Date -
Sep 9, 2004
app pub date -
Mar 4, 2003
filing date -
Mar 4, 2003
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A method and system that protects against a parallel printing attack is provided. During initialization of a printer and a meter, the printer provides the meter with an identification number. The identification number can be a serial number or the like, or a random number generated by the printer. The meter includes the identification number in each indicium message sent to the printer and optionally signs the message. When the printer receives an indicium message, it will compare the identification number in the indicium message to its own identification number. If the identification number is identical, the printer will print the indicium. If the identification number is not identical or the signature does not verify, the printer will not print the indicium. Thus, only the printer connected to the meter during initialization of the system will be able to print indicia generated during that session.
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