modifying the directory manager file by deleting {TAIL ~ a reference} to the target file, wherein {HEAD ~ the reference} includes a target file encryption key; and 
modifying the directory manager file by deleting { TAIL ~ a reference } to the target file , wherein { HEAD ~ the reference } includes a target file encryption key ; and
OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH