Thanks Rich, Jakob. So, can I use openssl as it is to query the values of the extension on an existing certificate do you think? The usual issue seems that people want to use openssl to form a request and insert the ms CA template name in there otherwise it complains. I don't want to do that, I want to take a presented certificate (to freeradius) and perform something in the shell that will check against acceptable template names (and that the certificate chains properly, but that's not a problem). I can't find anything on google citing that someone has achieved it so far. Thanks again. Andy -----Original Message----- From: openssl-users [mailto:openssl-users-bounces@xxxxxxxxxxx] On Behalf Of Jakob Bohm Sent: 28 April 2015 04:17 To: openssl-users at openssl.org Subject: Re: Certificate template information On 28/04/2015 02:59, Salz, Rich wrote: >> I have need to identify a Microsoft generated certificate's template name, I believe as part of oid 1.3.6.1.4.1.311.21.7 > Where, in a cert OtherName field? It is an extension. Microsoft certificate server (their bundled CA software) puts the name of the "certificate template" (analogous to an openssl.cnf section) in a certificate extension, and a few other Microsoft tools unfortunately check this name in addition to more relevant conditions such as EKU values etc. The form I know of can be implemented as follows in openssl.cnf (in the [sometemplatename_cert] section of the file): # enrollCerttypeExtension (1 3 6 1 4 1 311 20 2) # OCTET STRING, encapsulates { # BMPString 'SomeTemplateName' # } # } 1.3.6.1.4.1.311.20.2 = ASN1:BMP:SomeTemplateName I am not sure about the 1.3.6.1.4.1.311.21.7 OID, but it might be similar. Enjoy Jakob -- Jakob Bohm, CIO, Partner, WiseMo A/S. http://www.wisemo.com Transformervej 29, 2860 S?borg, Denmark. Direct +45 31 13 16 10 This public discussion message is non-binding and may contain errors. WiseMo - Remote Service Management for PCs, Phones and Embedded _______________________________________________ openssl-users mailing list To unsubscribe: https://mta.openssl.org/mailman/listinfo/openssl-users