Digital certificate proxy

Details Digital certificate proxy Digital certificate proxy

2005-02-08

2005-02-08

Darrow, Justin T. (Department: 2132)

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Central trusted authority provides computer authentication

C713S158000, C713S159000, C713S173000, C705S065000

Reexamination Certificate

active

06854057

ABSTRACT:
The invention generates a temporary digital certificate with a useful life of only a few minutes to a few hours. An expiration time is attached to such temporary digital certificate by a secure computer platform that is presented with a user's smart-card. Expiration dates one or two years after the issuance of the smart-card are conventional. A digital certificate issued by a central authority is carried within the smart card and is used by the secure computer platform to generate temporary digital certificate. The temporary digital certificate functions as a proxy digital certificate that will allow the user to immediately pocket the smart card and thus avoid the possibility of forgetting it in a card reader.

REFERENCES:
patent: 6016476 (2000-01-01), Maes et al.
patent: 6216231 (2001-04-01), Stubblebine
patent: 6510523 (2003-01-01), Perlman et al.
patent: 1 117 207 (2001-07-01), None
Tuecke et al.,Proxy Certificate Profile, Aug. 2001, www.letf.org/internet-drafts/draft-ietf-pkix-proxy-01.txt.

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