Data processing: financial – business practice – management – or co – For cost/price – Postage meter system
Patent
1996-08-23
1998-05-05
Cosimano, Edward R.
Data processing: financial, business practice, management, or co
For cost/price
Postage meter system
364400, 705 30, 705401, G07B 1700
Patent
active
057490783
ABSTRACT:
A value dispensing system comprising a portable data carrier and a terminal. The portable data carrier including a memory having stored therein accounting information indicative of an amount of value available for dispensing. The terminal including a memory and means for dispensing value and adapted to receive the portable data carrier and process a transaction which dispenses a given value in response to a digital token generated by the portable data carrier using a first cryptographic key. For the value dispensed, the postage evidencing system creates a transaction record having a secret portion which is indicative of the amount of value available for dispensing on the portable data carrier wherein the secret portion of the transaction record is encrypted using a second cryptographic key derived from the first cryptographic key, and the transaction record is stored in the terminal memory.
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Baker Walter J.
Gargiulo Joseph L.
Heiden Richard W.
Chaclas Angelo N.
Cosimano Edward R.
Pitney Bowes Inc.
Scolnick Melvin J.
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