If you need new matching rules, contact a Ping Identity support representative for assistance.

The following formal specification for attribute types is provided in RFC 4512, section 4.1.3.

MatchingRuleDescription = "(" wsp    ; Left parentheses followed by a white space
numericoid                           ; Required numeric object identifier identifying 
                                     ;   this matching rule
[ sp "NAME" sp qdescrs	              ; Short name descriptor
[ sp "DESC" sp qdstring              ; Description
[ sp "OBSOLETE" ]                    ; Specifies if the rule is inactive
sp "SYNTAX" sp numericoid            ; Assertion syntax
extensions wsp ")"	                  ; Extensions followed by a white space and ")"