Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Central trusted authority provides computer authentication
Reexamination Certificate
2006-10-17
2006-10-17
Louis-Jacques, Jacques H. (Department: 2134)
Electrical computers and digital processing systems: support
Multiple computer communication using cryptography
Central trusted authority provides computer authentication
C713S158000, C726S010000
Reexamination Certificate
active
07124294
ABSTRACT:
In order to limit users who can check for validity of a certificate in a system which uses public key certificates, a validity check permit permitting a request to check for validity of the certificate is issued by a permit issuing server120to the applicant of the certificate. The certificate applicant sends the validity check permit to a relevant user when the certificate is used (step701). When having a certificate validity checking server check for validity of the certificate, the user sends the validity check permit of the certificate to be checked to the certificate validity checking server (step704). The certificate validity checking server verifies the validity check permit (step706).
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Kawamura Shunji
Tomita Taminori
Brown Christopher J.
Hitachi , Ltd.
Louis-Jacques Jacques H.
Mattingly, Stanger, Malur & Brundidge, P. C.
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