!!! Overview
[{$pagename}] is an [eDirectory] [NICISDI Key] that is unique to each [server]. Each server creates a [{$pagename}] which is unique to that [NcpServer] used to securely wrap other [keys] for either local or remote storage. 
After a [Key] is [wrapped|Key wrapping] with a [{$pagename}], only code on that specific [NcpServer] can unwrap the [key], this allows the wrapped [key] to be remain secure even when stored remotely.!! [NICI 3.0]
Prior to [NICI 3.0], the [{$pagename}] [Triple DES] [algorithm] ([3DES]) [keys]. [NICI 3.0] creates [AES] 256-bit [{$pagename}]. 

Any [application] that uses the [{$pagename}] to securely wrap other [keys] should be able to handle the new [algorithm] to [encrypt] new [data]. However, any [data] which is currently wrapped with the older [3DES] keys should still be assessable without any changes.

!! More Information
There might be more information for this subject on one of the following:
[{ReferringPagesPlugin before='*' after='\n' }]