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Site Certificates

An X.509 certificate consists of the following fields:
 

 
This certificate is signed by the issuer to authenticate the binding between the subject (user's) name and the subject's public key. The major difference between versions 2 and 3 is the addition of the extensions field. This field grants more flexibility as it can convey additional information beyond just the key and name binding. Standard extensions include subject and issuer attributes, certification policy information, and key usage restrictions, among others.
 


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