Revocation in WebPKI Phill Hallam-Baker Comodo. Standards intersection PKIX OTHER.

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Presentation transcript:

Revocation in WebPKI Phill Hallam-Baker Comodo

Standards intersection PKIX OTHER

PKIX but not RFC5280 Semantics of Revocation Reasons – Says what tag to use – Not what tag means or when to use it – [X.509 spec has definitions]

Servers Is OCSP stapling supported? – Yes (Apache, IIS, LiteSpeed, ngnix) [Is OCSP stapling on by default?] [Does server check cert status regularly?] [Are frequent certificate updates supported?]

Clients Supported Revocation Checking Mechanisms – CRL / OCSP? User Experience for Certificate Status Invalid? User Experience for Certificate Status Valid? What sources are trusted to sign CRLs or OCSP responses? Does this vary for DV/EV?