cert-file.sh revision 1.1 
1#	$OpenBSD: cert-file.sh,v 1.1 2015/09/24 06:16:53 djm Exp $
2#	Placed in the Public Domain.
3
4tid="ssh with certificates"
5
6rm -f $OBJ/user_ca_key* $OBJ/user_key*
7rm -f $OBJ/cert_user_key*
8
9# Create a CA key
10${SSHKEYGEN} -q -N '' -t ed25519 -f $OBJ/user_ca_key1 ||\
11	fatal "ssh-keygen failed"
12${SSHKEYGEN} -q -N '' -t ed25519  -f $OBJ/user_ca_key2 ||\
13	fatal "ssh-keygen failed"
14
15# Make some keys and certificates.
16${SSHKEYGEN} -q -N '' -t ed25519 -f $OBJ/user_key1 || \
17	fatal "ssh-keygen failed"
18${SSHKEYGEN} -q -N '' -t ed25519 -f $OBJ/user_key2 || \
19	fatal "ssh-keygen failed"
20# Move the certificate to a different address to better control
21# when it is offered.
22${SSHKEYGEN} -q -s $OBJ/user_ca_key1 -I "regress user key for $USER" \
23	-z $$ -n ${USER} $OBJ/user_key1 ||
24		fail "couldn't sign user_key1 with user_ca_key1"
25mv $OBJ/user_key1-cert.pub $OBJ/cert_user_key1_1.pub
26${SSHKEYGEN} -q -s $OBJ/user_ca_key2 -I "regress user key for $USER" \
27	-z $$ -n ${USER} $OBJ/user_key1 ||
28		fail "couldn't sign user_key1 with user_ca_key2"
29mv $OBJ/user_key1-cert.pub $OBJ/cert_user_key1_2.pub
30
31trace 'try with identity files'
32opts="-F $OBJ/ssh_proxy -oIdentitiesOnly=yes"
33opts2="$opts -i $OBJ/user_key1 -i $OBJ/user_key2"
34echo "cert-authority $(cat $OBJ/user_ca_key1.pub)" > $OBJ/authorized_keys_$USER
35
36for p in ${SSH_PROTOCOLS}; do
37	# Just keys should fail
38	${SSH} $opts2 somehost exit 5$p
39	r=$?
40	if [ $r -eq 5$p ]; then
41		fail "ssh succeeded with no certs in protocol $p"
42	fi
43
44	# Keys with untrusted cert should fail.
45	opts3="$opts2 -z $OBJ/cert_user_key1_2.pub"
46	${SSH} $opts3 somehost exit 5$p
47	r=$?
48	if [ $r -eq 5$p ]; then
49		fail "ssh succeeded with bad cert in protocol $p"
50	fi
51
52	# Good cert with bad key should fail.
53	opts3="$opts -i $OBJ/user_key2 -z $OBJ/cert_user_key1_1.pub"
54	${SSH} $opts3 somehost exit 5$p
55	r=$?
56	if [ $r -eq 5$p ]; then
57		fail "ssh succeeded with no matching key in protocol $p"
58	fi
59
60	# Keys with one trusted cert, should succeed.
61	opts3="$opts2 -z $OBJ/cert_user_key1_1.pub"
62	${SSH} $opts3 somehost exit 5$p
63	r=$?
64	if [ $r -ne 5$p ]; then
65		fail "ssh failed with trusted cert and key in protocol $p"
66	fi
67
68	# Multiple certs and keys, with one trusted cert, should succeed.
69	opts3="$opts2 -z $OBJ/cert_user_key1_2.pub -z $OBJ/cert_user_key1_1.pub"
70	${SSH} $opts3 somehost exit 5$p
71	r=$?
72	if [ $r -ne 5$p ]; then
73		fail "ssh failed with multiple certs in protocol $p"
74	fi
75
76	#Keys with trusted certificate specified in config options, should succeed.
77	opts3="$opts2 -oCertificateFile=$OBJ/cert_user_key1_1.pub"
78	${SSH} $opts3 somehost exit 5$p
79	r=$?
80	if [ $r -ne 5$p ]; then
81		fail "ssh failed with trusted cert in config in protocol $p"
82	fi
83done
84
85#next, using an agent in combination with the keys
86SSH_AUTH_SOCK=/nonexistent ${SSHADD} -l > /dev/null 2>&1
87if [ $? -ne 2 ]; then
88	fatal "ssh-add -l did not fail with exit code 2"
89fi
90
91trace "start agent"
92eval `${SSHAGENT} -s` > /dev/null
93r=$?
94if [ $r -ne 0 ]; then
95	fatal "could not start ssh-agent: exit code $r"
96fi
97
98# add private keys to agent
99${SSHADD} -k $OBJ/user_key2 > /dev/null 2>&1
100if [ $? -ne 0 ]; then
101	fatal "ssh-add did not succeed with exit code 0"
102fi
103${SSHADD} -k $OBJ/user_key1 > /dev/null 2>&1
104if [ $? -ne 0 ]; then
105	fatal "ssh-add did not succeed with exit code 0"
106fi
107
108# try ssh with the agent and certificates
109# note: ssh agent only uses certificates in protocol 2
110opts="-F $OBJ/ssh_proxy"
111# with no certificates, shoud fail
112${SSH} -2 $opts somehost exit 52
113if [ $? -eq 52 ]; then
114	fail "ssh connect with agent in protocol 2 succeeded with no cert"
115fi
116
117#with an untrusted certificate, should fail
118opts="$opts -z $OBJ/cert_user_key1_2.pub"
119${SSH} -2 $opts somehost exit 52
120if [ $? -eq 52 ]; then
121	fail "ssh connect with agent in protocol 2 succeeded with bad cert"
122fi
123
124#with an additional trusted certificate, should succeed
125opts="$opts -z $OBJ/cert_user_key1_1.pub"
126${SSH} -2 $opts somehost exit 52
127if [ $? -ne 52 ]; then
128	fail "ssh connect with agent in protocol 2 failed with good cert"
129fi
130
131trace "kill agent"
132${SSHAGENT} -k > /dev/null
133
134#cleanup
135rm -f $OBJ/user_ca_key* $OBJ/user_key*
136rm -f $OBJ/cert_user_key*
137