Remove support for S/Key

Most people will 1) be using modern multi-factor authentication methods
like TOTP/OATH etc and 2) be getting support for multi-factor
authentication via PAM or BSD Auth.

1 files changed, 1 insertions, 1 deletions

diff --git a/readconf.c b/readconf.c
index 4ab312fff..4b11bab5e 100644
--- a/readconf.c
+++ b/readconf.c
@@ -230,7 +230,7 @@ static struct {
         { "dsaauthentication", oPubkeyAuthentication },             /* alias */
         { "hostbasedauthentication", oHostbasedAuthentication },
         { "challengeresponseauthentication", oChallengeResponseAuthentication },
-        { "skeyauthentication", oChallengeResponseAuthentication }, /* alias */
+        { "skeyauthentication", oUnsupported },
         { "tisauthentication", oChallengeResponseAuthentication },  /* alias */
         { "identityfile", oIdentityFile },
         { "identityfile2", oIdentityFile },                     /* obsolete */