!!! Overview[1]
In [Cryptography], [{$pagename}] is an [ITU-T] standard for a [Public Key Infrastructure] (PKI) and [Privilege Management Infrastructure] (PMI). 

[{$pagename}] specifies among other things, standard formats for [Public Key] [Certificates], [Certificate Revocation List], attribute certificates, and a [certification path validation algorithm|Certificate Validation].

!! More Information
There might be more information for this subject on one of the following:
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* [#1] - [X.509|Wikipedia:X.509|target='_blank'] - based on [{$pagename}]