.BR krb5p ,
.BR lkey ,
.BR lkeyi ,
-.BR lkeyp ,
-.BR spkm ,
-.BR spkmi ,
and
-.BR spkmp .
+.BR lkeyp ,
Refer to the SECURITY CONSIDERATIONS section for details.
.TP 1.5i
.BR sharecache " / " nosharecache
to prevent data exposure during network transit; however,
expect some performance impact
when using integrity checking or encryption.
-Similar support for other forms of cryptographic security (such as lipkey and SPKM3)
+Similar support for other forms of cryptographic security (such as lipkey)
is also available.
.P
The NFS version 4 protocol allows