A device for authenticating and verifying the originator of an electronic document transmission. A card reader is disposed at a transmitting station and an originator verifier is disposed at a receiving station. The originator verifier produces original markings on the document produced at the receiving...http://www.google.fr/patents/US5321237?utm_source=gb-gplus-shareBrevet US5321237 - Device and method for authenticating electronic document transmissions
Device and method for authenticating electronic document transmissions
