Digital certificates

Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Particular communication authentication technique

Reexamination Certificate

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Details

C713S156000, C713S168000, C713S170000, C726S010000, C705S076000

Reexamination Certificate

active

07107449

ABSTRACT:
The present invention provides a digital certificate (2, 32) comprising a plurality of credential attribute properties (6, 36), and a trust function (8, 42) embedded within the certificate as an executable file, which trust function can determine as a function of data (12, 44) available to it a trust value (14, 46) attributable to at least a part of the certificate at least partly by execution of the executable file. A corresponding method of communication 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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