Usage
- In computer security, OIDs serve to name almost every object type in X.509 certificates, such as components of Distinguished Names, CPSs, etc.
- Within X.500 directory schemas and protocols, to uniquely name each attribute type and object class, and other elements of schema.
- Within LDAP schemas, each object class and each attribute type has a unique OID
- In computer networking, an OID, in the context of the Simple Network Management Protocol (SNMP), consists of the object identifier for an object in a Management Information Base (MIB).
- HL7, DICOM and other health care related information interchange standards use OIDs for globally unique identifiers for both individual information objects as well as References to code systems and data element dictionaries. DICOM uses the term UID (Unique IDentifier) in place of OID.
- The IANA OID registry contains a list of registered entities that use OIDs to reference internal structures (e.g. directory attributes). Each entity is assigned an initial referential value (e.g. 1.3.6.1.4.1.5518 for TDS Telecom Inc.) and thereafter the internal numbering plan is up to the entity to define (e.g. 1.3.6.1.4.1.5518.1.5.47 might refer to the "CCID" attribute of the LDAP directory associated with customers). This allows for precise referencing of data attributes in a company or other entity.
Read more about this topic: Object Identifier
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