Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Protection at a particular protocol layer
Reexamination Certificate
2005-01-11
2005-01-11
Barron, Gilberto (Department: 2132)
Electrical computers and digital processing systems: support
Multiple computer communication using cryptography
Protection at a particular protocol layer
C713S156000, C713S157000, C713S158000, C713S175000
Reexamination Certificate
active
06842863
ABSTRACT:
A system for using a certificate authority to first provide a customer with a digital certificate, and then having a relying party that receives that digital certificate access a status authority (the certificate authority or its designated agent) to receive a reissued certificate on that certificate. The reissued certificate has a much shorter validity period, which ensures that the information is timely. Moreover, the certificate may serve as a receipt, including an accumulated record of the signatures (digital certificates) and policy applied throughout the financial transaction. As a result, each transfer of the transaction forms a digitally-signed chain of evidence recording each step of the transaction and policy applied thereto, whereby risk may be assumed and charged for appropriately and in accordance with the risk purchaser's policy.
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Fox Barbara L.
LaMacchia Brian A.
Barron Gilberto
Law Offices of Alberts S. Michalik, PLLC
Microsoft Corporation
Zand Kambiz
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