[openssl-users] 802.1AR certificate generation and the config file

[Dr. Stephen Henson]

On Fri, Aug 11, 2017, Robert Moskowitz wrote:

> Frustrated...
> 
> On 08/11/2017 11:14 AM, Salz, Rich via openssl-users wrote:
> >>My challenge comes to subjectAltName and its subfield
> >>hardwareModuleName
> >>per RFC 4108.   I guess I am not 'getting' the subjectAltName section of
> >>'man x509v3_config'.
> >Not all forms of SAN names are supported.  If you look in include/openssl/x509v3.h you see the following:
> ># define GEN_OTHERNAME   0
> ># define GEN_EMAIL       1
> ># define GEN_DNS         2
> ># define GEN_X400        3
> ># define GEN_DIRNAME     4
> ># define GEN_EDIPARTY    5
> ># define GEN_URI         6
> ># define GEN_IPADD       7
> ># define GEN_RID         8
> 
> I just spent over an hour googling around as well as reading openssl
> docs to get a list of distinguished_name fields.  Both in their full
> form and abbreviated form.  All I fined are the common ones in
> examples.
> 
> And for the list above for SAN, how are they presented in the
> openssl cli/config.  Again, just not finding it.
> 
> My search foo is weak.
> 
> pointers greatly appreciated.
> 

You can use the mini-ASN.1 compiler with the otherName syntax. This will
create the extension in the appropriate form but you wont get it displayed.

In outline it's like this:

----
# Use id-on-hardwareModuleName OID with otherName
subjectAltName = otherName:1.3.6.1.5.5.7.8.4;SEQ:hmodname

[hmodname]
hwType = OID:1.2.3.4 # Whatever OID you want.
hwSerialNum = FORMAT:HEX,OCT:01020304 # Some hex
----

Steve.
--
Dr Stephen N. Henson. OpenSSL project core developer.
Commercial tech support now available see: http://www.openssl.org