Method for removing funds from a postal security device

Details Method for removing funds from a postal security device Method for removing funds from a postal security device

1997-12-23

2000-05-02

Voeltz, Emanuel Todd

Data processing: financial, business practice, management, or co

Business processing using cryptography

705402, G06F 1700

Patent

active

060583843

ABSTRACT:
A method for removing postal funds from a postage meter provides an accounting unit of a postage meter with indicium-related information which is invalid for mailing such as invalid origin zip or date. The accounting unit generates a digital signature, which is an encrypted value of the postal funds removed from the postage meter and other postal data including the indicium-related information. The accounting unit through a Host PC sends to a data center the amount of the postal funds removed from the postage meter and the digital signature. The data center verifies that the digital signature has been generated using the indicium-related information. The meter is disabled when the digital signature cannot be verified. When the digital signature is verified a request for a refund is sent by the data center to a postal authority. An example of the indicium-related information is an invalid destination postal code or an invalid origination postal code.

REFERENCES:
patent: 4376299 (1983-03-01), Rivest et al.
patent: 4447890 (1984-05-01), Duwel et al.
patent: 4649266 (1987-03-01), Eckert
patent: 4787045 (1988-11-01), Storace et al.
patent: 4837701 (1989-06-01), Sansone et al.
patent: 5717596 (1998-02-01), Bernard et al.

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