Overview#
ExtendedKeyUsage is a Certificate Extensions and consists of a list of usages indicating purposes for which the certificate public key can be used for.These can either be object short names of the dotted numerical form of OIDs. While any OID can be used only certain values make sense. In particular the following PKIX, NS and MS values are meaningful: (Not an complete list)
Examples:#
extendedKeyUsage=critical,codeSigning,1.2.3.4 extendedKeyUsage=nsSGC,msSGC
More Information#
There might be more information for this subject on one of the following:- [#1] - Object IDs associated with Microsoft cryptography
- based on information obtained 2020-02-16