2.5.13.4 - id-mr-caseIgnoreSubstringsMatch

OID value: 2.5.13.4

OID description:
The Case Ignore Substrings Match rule determines whether a presented value is a substring of an attibute value of type PrintableString, NumericString, TeletexString, BMPString, UniversalString or DirectoryString without regard for case (upper or lower) of the strings.

The rule returns TRUE if there is a partitioning of the attribute value (into portions) such that:

• the specified substrings (initial, any, final) match different portions of the value in the order of the strings sequence;
• initial, if present, matches the first portion of the value;
• final, if present, matches the last portion of the value;
• any, if present, matches some arbitrary portion of the value;

There shall be at most one initial, and at most one final in strings. If initial is present, it shall be the first element of strings. If final is present it shall be the last element of strings. There shall be zero or more any in strings.

For a component of substrings to match a portion of the attribute value, corresponding characters must be identical, except in regard to case. Where the strings being matched are of different ASN.1 syntax, the comparison proceeds as normal so long as the corresponding characters are in both character sets. Otherwise matching fails.

caseIgnoreSubstringsMatch MATCHING-RULE ::= {
	SYNTAX SubstringAssertion
	ID id-mr-caseIgnoreSubstringsMatch
}

SubstringAssertion ::= SEQUENCE OF CHOICE {
	initial [0] DirectoryString {ub-match}
	any [1] DirectoryString {ub-match}
	final [2] DirectoryString {ub-match}
}
-- at most one initial and one final component

See also the OID Repository website reference for 2.5.13.4

Superior references

• 2.5.13 - Matching Rule
• 2.5 - X.500 Directory Services
• 2 - ISO/ITU-T jointly assigned OIDs
• Top of OID tree