chkey(1) User Commands chkey(1)
chkey - change user's secure RPC key pair
chkey [-p] [-s nisplus | nis | files | ldap] [-m <mechanism>]
chkey is used to change a user's secure RPC public key and secret key
pair. chkey prompts for the old secure-rpc password and verifies that
it is correct by decrypting the secret key. If the user has not already
used keylogin(1) to decrypt and store the secret key with keyserv(1M),
chkey registers the secret key with the local keyserv( 1M) daemon. If
the secure-rpc password does not match the login password, chkey
prompts for the login password. chkey uses the login password to
encrypt the user's secret Diffie-Hellman (192 bit) cryptographic key.
chkey can also encrypt other Diffie-Hellman keys for authentication
mechanisms configured using nisauthconf(1M).
chkey ensures that the login password and the secure-rpc password(s)
are kept the same, thus enabling password shadowing. See shadow(4).
The key pair can be stored in the /etc/publickey file (see pub-
lickey(4)), the NIS publickey map, or the NIS+ cred.org_dir table. If a
new secret key is generated, it will be registered with the local key-
serv(1M) daemon. However, only NIS+ can store Diffie-Hellman keys other
Keys for specific mechanisms can be changed or reencrypted using the -m
option followed by the authentication mechanism name. Multiple -m
options can be used to change one or more keys. However, only mecha-
nisms configured using nisauthconf(1M) can be changed with chkey.
If the source of the publickey is not specified with the -s option,
chkey consults the publickey entry in the name service switch configu-
ration file. See nsswitch.conf(4). If the publickey entry specifies
one and only one source, then chkey will change the key in the speci-
fied name service. However, if multiple name services are listed, chkey
can not decide which source to update and will display an error mes-
sage. The user should specify the source explicitly with the -s option.
Non root users are not allowed to change their key pair in the files
The following options are supported:
-p Re-encrypt the existing secret key with the
user's login password.
-s nisplus Update the NIS+ database.
-s nis Update the NIS database.
-s files Update the files database.
-s ldap Update the LDAP database.
-m <mechanism> Changes or re-encrypt the secret key for the
See attributes(5) for descriptions of the following attributes:
tab() allbox; cw(2.750000i)| cw(2.750000i) lw(2.750000i)|
lw(2.750000i). ATTRIBUTE TYPEATTRIBUTE VALUE AvailabilitySUNWcsu
keylogin(1), keylogout(1), keyserv(1M), newkey(1M), nisaddcred(1M),
nisauthconf(1M), nsswitch.conf(4), publickey(4), shadow(4),
NIS+ might not be supported in future releases of the SolarisTM Operat-
ing Environment. Tools to aid the migration from NIS+ to LDAP are
available in the Solaris 9 operating environment. For more information,
SunOS 5.10 24 Jan 2002 chkey(1)