Cryptography – Particular algorithmic function encoding – Nbs/des algorithm
Patent
1993-10-08
1999-03-02
Gregory, Bernarr Earl
Cryptography
Particular algorithmic function encoding
Nbs/des algorithm
380 51, 380 55, 705401, 705405, H04L 900
Patent
active
058781366
ABSTRACT:
A key control system comprises the generation of a first set of keys which are then used for a plurality of respective postage meters. The keys are then related to a respective meter in accordance with a map or algorithm. The keys may be changed by entering the second key via an encryption using the first key.
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Cordery Robert A.
Kim Hyung-Kun (Paul)
Pintsov Leon A.
Gregory Bernarr Earl
Malandra, Jr. Charles R.
Pitchenik David E.
Pitney Bowes Inc.
Scolnick Melvin J.
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