+ Properties which can also appear in public key files.
+ These are acceptable to make-secnet-sites only at
+ site level. See also `Site long-term keys' in NOTES.
+
+ pub ALG DATAB91S
+ Defines a public key. ALG is an algorithm name and
+ DATA91S is the public key data, encoded according to
+ secnet-base91 (see below).
+ Not yet suported in make-secnet-sites.
+
+ serial SETIDHEX
+ Specifies the key set id (8 hex digits representing
+ 4 bytes: each pair is the value of the next byte).
+ May appear at most once. If not present, 00000000.
+ Not yet suported in make-secnet-sites.
+
+ pkg GROUPIDHEX
+ pkgf GROUPIDHEX
+ Specifies the key group id for subsequent keys.
+ pkgf indicates a fallback group.
+ May be repeated (with different id values).
+ If not specified, 00000000.
+ Not yet suported in make-secnet-sites.
+