Printing postage with cryptographic clocking security
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United States of America Patent
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Jun 20, 2000
Grant Date -
N/A
app pub date -
Apr 20, 1998
filing date -
Aug 20, 1996
priority date (Note) -
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status (Latency Note)
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Abstract
Secure activities are carried out between a client (23) and a server (21) in connection with the printing of postage. A cryptographically secure exchange (22) is employed so as to establish a common time base (24, 25), said common time base obviating a constant (e.g. battery) power supply. The postage-printing client (23) thus does need not have a reliable power supply in the absence of AC (mains) power.
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