I want to make my own tiny rootca. There are problem with supporting OIDS. I found in documentation about oid_file, but can not decode syntax of values. DER: works fine, but I want to use more readeable format. All I can find is the same docs without a tiny working example how to use my defined oids. sample: [oid_file] 1.3.6.1.4.1.311.21.1 msCAversion XCN_OID_CERTSRV_CA_VERSION 1.3.6.1.4.1.311.21.4 msCRLNextPublish XCN_OID_CRL_NEXT_PUBLISH [ca.conf] oid_file =oid.txt ... [ crl_ext ] authorityKeyIdentifier=keyid:always msCAversion = DER:020101 msCRLNextPublish = DER:170D3234303930393131333635395A with these options all works ok. >openssl ca -config ca.conf -gencrl -crlexts crl_ext -out crl.pem but when I try anything like this: msCAversion = 1 msCAversion = INT:01 msCAversion = INTEGER:0x01 (and many other combinations) I'll got the same error: Using configuration from ca.conf Error checking CRL extension section crl_ext 00CEC9A0FA7F0000:error:11000081:X509 V3 routines:do_ext_nconf:unknown extension:crypto/x509/v3_conf.c:92: 00CEC9A0FA7F0000:error:11000080:X509 V3 routines:X509V3_EXT_nconf_int:error in extension:crypto/x509/v3_conf.c:48:section=crl_ext, name=msCAversion, value=INTEGER:0x01 Same with datetime, there are no help about it's format: msCRLNextPublish =UTC =: UTCTIME:"2024-Sep-09 11:36:59" =ANS1.UTCTIME.... How to properly fromat values and please, include it with examples to documentation? And what to do to make -text outpul with readeable format, not just dump of OIDs? I think, there have to be some global OID config file, but where is it?