Method for deterring forgeries and authenticating signatures

Details Method for deterring forgeries and authenticating signatures Method for deterring forgeries and authenticating signatures

1996-09-30

2000-02-29

Pitts, Andrea L.

Printed matter

Method

Identifying

283 67, 283 72, 283 75, 283904, 34082534, 380 23, 380 54, 705 1, B42D 1500

Patent

active

060300019

ABSTRACT:
A method for deterring forgeries and authenticating signatures placed on any document or other object (collectively "Item") is disclosed. A first two dimensional bar code or forgery-proof diffraction grating pattern or similar information bearing medium (Electronic Fingerprint or "EF") is issued to a person whose signature is being protected ("Principal") by a central registrar ("CR"). A personal identification number ("PIN") which has been assigned by the CR to the Principal is encoded on the EF. The PIN remains constant and is encoded on all EFs distributed to the Principal.

REFERENCES:
patent: 3571957 (1971-03-01), Cumming et al.
patent: 4926325 (1990-05-01), Benton et al.
patent: 5561282 (1996-10-01), Price et al.
patent: 5737886 (1998-04-01), Kruckemeyer

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