[This is preliminary documentation and subject to change.]
| Common-Name=Security-Identifier | Admin-Display-Name=Security-Identifier |
| Admin-Description=Security-Identifier | Object-Class=Attribute-Schema |
| Attribute-ID=1.2.840.113556.1.4.121 | OM-Syntax=4 |
| Attribute-Syntax=String(Octet) | LDAP-Display-Name=securityIdentifier |
| Single-valued | System-Only=FALSE |
| Schema-ID-GUID={bf967a2f-0de6-11d0-a285-00aa003049e2} | Comment=NT SID |