Cryptography – Particular algorithmic function encoding – Nbs/des algorithm
Patent
1991-10-25
1993-08-03
Swann, Tod R.
Cryptography
Particular algorithmic function encoding
Nbs/des algorithm
380 18, 380 51, 380 55, 36446902, H04K 100
Patent
active
052336573
ABSTRACT:
A method for franking postal matter uses an apparatus of a postage user having franking functions and being coupled through telecommunication devices with a remote data processing center for recording and releasing postage. A terminal device of a telecommunication system installed at a location of a user is coupled with a data processing center associated with a postage service for settling postage through telecommunications connections. Data is transmitted to the data processing center in one direction for requesting a central recordation of postage and for generating franking data. At least essential portions of a franking image corresponding to the requested franking are transmitted in another direction. The franking image is completed in the terminal device with stored image portions. A device for franking postal matter includes a terminal device of a postage user. The terminal device performs franking functions. A two-way telecommunication input device couples the terminal device with a remote data processing center for recording and releasing postage. The terminal device has a printer, a coding device for securing the two-way communication with cryptographic encoding, and a safety device for preventing counterfeiting of a franking imprint.
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Francotyp-Postalia GmbH
Greenberg Laurence A.
Lerner Herbert L.
Swann Tod R.
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