Cryptography – Particular algorithmic function encoding – Nbs/des algorithm
Patent
1995-03-31
1997-10-21
Gregory, Bernarr E.
Cryptography
Particular algorithmic function encoding
Nbs/des algorithm
380 23, 380 25, 380 49, 36446411, 36446415, H04L 908, H04L 900, G06F 1700
Patent
active
056804563
ABSTRACT:
A method of manufacturing transaction evidencing devices, such as digital postage meters, includes the steps of generating a master key in a logical security domain of a Key Management System; installing the master key into a digital postage meter; verifying the installation of the master key; and registering the master key to a logical security sub-domain in the Key Management System. The step of generating the master key further includes the steps of generating a domain; generating at least one sub-domain; installing the domain in secure boxes of the Key Management System; generating a master key and test token within the domain; and recording the master key in the domain archive. The step of installing the master key further includes the steps of installing the master key into a digital meter; and associating the master key with a unique device identifier. The step of registering the master key to a logical security sub-domain in the Key Management System further includes the steps of assigning a sub-domain to the digital meter; installing a postal identifier into the digital meter; associating the postal identifier to the unique device identifier; generating a registration token in the digital meter based on the postal identifier and the unique device identifier; generating registration tokens using the master key recorded in the archives; verifying that the registration tokens are identical; and recording the master key in the sub-domain. The steps are repeated for each domain assigned to the digital postage meter.
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Baker Walter J.
Bator Feliks
Cordery Robert A.
D'Ippolito Frank M.
Hunter Kevin D.
Gregory Bernarr E.
Malandra, Jr. Charles R.
Pitchenik David E.
Pitney Bowes Inc.
Scolnick Melvin J.
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