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US 9,031,879 B2Granted
Method of franking with early signature generation
AssigneeNeopost Technologies
InventorFabien Chatte
Life of this patent
Estimating the term…
Abstract
A method of generating a digital signature at a postage meter, in which method a postal imprint is printed on a mail item once said mail item has been weighed and once its postage amount has been determined, said postal imprint being associated with a digital signature generated by means of a secret key on the basis of constant data and variable data, said variable data comprising only a fingerprint code extracted upstream of the weighing from a three-dimensional structure of the fibers of the mail item.
Claims3
A postage meter for printing postal imprints on mixed mail items, said postage meter comprising:
- at least a feeder module,
- a dynamic weigh module,
- a print module incorporating a postal security device, and
- a scanner device for scanning the three-dimensional structure of fibers of each mail item,
- wherein said postal security device includes means for generating a digital signature on the basis of constant data and only one variable data, said only one variable data being a fingerprint code extracted from said three-dimensional structure of the fibers of the mail item by means of said scanner device.
2 more elements
Dependencies are inferred from the claim text.