1 # $OpenBSD: dhgex.sh,v 1.2 2014/04/21 22:15:37 djm Exp $
2 # Placed in the Public Domain.
6 LOG=${TEST_SSH_LOGFILE}
8 cp $OBJ/sshd_proxy $OBJ/sshd_proxy_bak
10 kexs=`${SSH} -Q kex | grep diffie-hellman-group-exchange`
18 cp $OBJ/sshd_proxy_bak $OBJ/sshd_proxy
19 echo "KexAlgorithms=$kex" >> $OBJ/sshd_proxy
20 echo "Ciphers=$cipher" >> $OBJ/sshd_proxy
22 opts="-oKexAlgorithms=$kex -oCiphers=$cipher"
23 groupsz="1024<$bits<8192"
24 verbose "$tid bits $bits $kex $cipher"
25 ${SSH} ${opts} $@ -vvv -F ${OBJ}/ssh_proxy somehost true
27 fail "ssh failed ($@)"
29 # check what we request
30 grep "SSH2_MSG_KEX_DH_GEX_REQUEST($groupsz) sent" ${LOG} >/dev/null
32 got=`egrep "SSH2_MSG_KEX_DH_GEX_REQUEST(.*) sent" ${LOG}`
33 fail "$tid unexpected GEX sizes, expected $groupsz, got $got"
35 # check what we got (depends on contents of system moduli file)
36 gotbits="`awk '/bits set:/{print $4}' ${LOG} | head -1 | cut -f2 -d/`"
37 if [ "$gotbits" -lt "$bits" ]; then
38 fatal "$tid expected $bits bit group, got $gotbits"
48 ssh_test_dhgex $bits $c $k
54 check 3072 `${SSH} -Q cipher | grep 128`
55 check 3072 arcfour blowfish-cbc
56 check 7680 `${SSH} -Q cipher | grep 192`
57 check 8192 `${SSH} -Q cipher | grep 256`
58 check 8192 rijndael-cbc@lysator.liu.se chacha20-poly1305@openssh.com