Digital certificates

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2006-11-28

2006-11-28

Barron, Jr., Gilberto (Department: 2132)

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Central trusted authority provides computer authentication

C713S175000, C705S076000, C726S005000, C380S030000

Reexamination Certificate

active

07143286

ABSTRACT:
The present invention provides a digital certificate (2, 32), the certificate comprising a credential attribute function (6, 38) associated with a credential attribute property (5, 36), which credential attribute function is embedded in the certificate as an executable file, in which the credential attribute function can determine the value (12, 44) of the credential attribute property at least partly by execution of the executable file. A corresponding method is also disclosed.

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Housley et al., “Internet X.509 Public Key Infrastructure Certificate and CRL Profile,” The Internet Society (1999), pp. 1-105, Feb. 2, 2002, ftp://ftp.isi.edu/in-notes/rfc2459.txt.

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