publickey
—
public key database
/etc/publickey is the public key database used for
secure RPC (Remote Procedure Calls). Each entry in the database consists of a
network user name (which may either refer to a user or a hostname), followed
by the user's public key (in hex notation), a colon, and then the user's
secret key encrypted with its login password (also in hex notation).
This file is altered either by the user through the
chkey(1)
command or by the system administrator through the
newkey(8)
command. The file /etc/publickey should only contain
data on the NIS master machine, where it is converted into the NIS database
publickey.byname.