!!! Overview
[{$pagename}] ([1.2.840.113556.1.4.803]) is an [ExtensibleMatch] for a [Bitwise AND] operations on [BIT STRING] ([Bitmask])

A match is found only if all bits from the [Assertion Value] match the [Attribute Value]. This rule is equivalent to a [Bitwise AND] [Bitwise operation].[1]

We show examples of this [Extensible Match] usage under [Filtering for Bit Fields] and [Active Directory Group Related Searches]
Not all [LDAP Server Implementations] provide all [Matching Rules]. 
The [OIDs] shown here are [Microsoft Active Directory] specific and will probably not work on other server implementations. We wish some of the other [LDAP Server Implementations] would add support for these [Extensible Match] Rules.


!! More Information
There might be more information for this subject on one of the following:
[{ReferringPagesPlugin before='*' after='\n' }]
----
[#1] - We obtained some of this information from [http://msdn.microsoft.com/en-us/library/aa746475%28VS.85%29.aspx]