Sets the iterations used to previously compute AN ALREADY GENERATED HASH.
<p/>
This is provided <em>ONLY</em> to reconstitute an already-created Hash instance. It should ONLY ever be
invoked when re-constructing a hash instance from an already-hashed value.
@param iterations the number of hash iterations used to previously create the hash/digest.
Sets the iterations used to previously compute AN ALREADY GENERATED HASH. <p/> This is provided <em>ONLY</em> to reconstitute an already-created Hash instance. It should ONLY ever be invoked when re-constructing a hash instance from an already-hashed value.
@param iterations the number of hash iterations used to previously create the hash/digest.