               NID_key_usage
Extended Key Usage                 NID_ext_key_usage

Subject Key Identifier             NID_subject_key_identifier
Authority Key Identifier           NID_authority_key_identifier

Private Key Usage Period           NID_private_key_usage_period

Subject Alternative Name           NID_subject_alt_name
Issuer Alternative Name            NID_issuer_alt_name

Authority Information Access       NID_info_access
Subject Information Access         NID_sinfo_access

Name Constraints     