Pierangelo Masarati writes:
I plan to write an search interface and was thinking about tracking results ...
entryUUID is a perfect key, since it has the above properties and it's fixed length.
Also he doesn't need to parse it if he wants to know if the directory would consider two values equivalent. Unlike how DN "CN=Foo+UID=bar" matches "uid=bar+cn=foo".
However, in general it's not something an interface would expose.