# $OpenBSD: keytype.sh,v 1.10 2019/12/16 02:39:05 djm Exp $ # Placed in the Public Domain. tid="login with different key types" cp $OBJ/sshd_proxy $OBJ/sshd_proxy_bak cp $OBJ/ssh_proxy $OBJ/ssh_proxy_bak # Construct list of key types based on what the built binaries support. ktypes="" for i in ${SSH_KEYTYPES}; do case "$i" in ssh-dss) ktypes="$ktypes dsa-1024" ;; ssh-rsa) ktypes="$ktypes rsa-2048 rsa-3072" ;; ssh-ed25519) ktypes="$ktypes ed25519-512" ;; ecdsa-sha2-nistp256) ktypes="$ktypes ecdsa-256" ;; ecdsa-sha2-nistp384) ktypes="$ktypes ecdsa-384" ;; ecdsa-sha2-nistp521) ktypes="$ktypes ecdsa-521" ;; sk-ssh-ed25519*) ktypes="$ktypes ed25519-sk" ;; sk-ecdsa-sha2-nistp256*) ktypes="$ktypes ecdsa-sk" ;; esac done for kt in $ktypes; do rm -f $OBJ/key.$kt xbits=`echo ${kt} | awk -F- '{print $2}'` xtype=`echo ${kt} | awk -F- '{print $1}'` case "$kt" in *sk) type="$kt"; bits="n/a"; bits_arg="";; *) type=$xtype; bits=$xbits; bits_arg="-b $bits";; esac verbose "keygen $type, $bits bits" ${SSHKEYGEN} $bits_arg -q -N '' -t $type -f $OBJ/key.$kt || \ fail "ssh-keygen for type $type, $bits bits failed" done kname_to_ktype() { case $1 in dsa-1024) echo ssh-dss;; ecdsa-256) echo ecdsa-sha2-nistp256;; ecdsa-384) echo ecdsa-sha2-nistp384;; ecdsa-521) echo ecdsa-sha2-nistp521;; ed25519-512) echo ssh-ed25519;; rsa-*) echo rsa-sha2-512,rsa-sha2-256,ssh-rsa;; ed25519-sk) echo sk-ssh-ed25519@openssh.com;; ecdsa-sk) echo sk-ecdsa-sha2-nistp256@openssh.com;; esac } tries="1 2 3" for ut in $ktypes; do user_type=`kname_to_ktype "$ut"` htypes="$ut" #htypes=$ktypes for ht in $htypes; do host_type=`kname_to_ktype "$ht"` trace "ssh connect, userkey $ut, hostkey $ht" ( grep -v HostKey $OBJ/sshd_proxy_bak echo HostKey $OBJ/key.$ht echo PubkeyAcceptedKeyTypes $user_type echo HostKeyAlgorithms $host_type ) > $OBJ/sshd_proxy ( grep -v IdentityFile $OBJ/ssh_proxy_bak echo IdentityFile $OBJ/key.$ut echo PubkeyAcceptedKeyTypes $user_type echo HostKeyAlgorithms $host_type ) > $OBJ/ssh_proxy ( printf 'localhost-with-alias,127.0.0.1,::1 ' cat $OBJ/key.$ht.pub ) > $OBJ/known_hosts cat $OBJ/key.$ut.pub > $OBJ/authorized_keys_$USER for i in $tries; do verbose "userkey $ut, hostkey ${ht}" ${SSH} -F $OBJ/ssh_proxy 999.999.999.999 true if [ $? -ne 0 ]; then fail "ssh userkey $ut, hostkey $ht failed" fi done done done