cert-userkey.sh revision 1.2 
1#	$OpenBSD: cert-userkey.sh,v 1.2 2010/03/03 00:47:23 djm Exp $
2#	Placed in the Public Domain.
3
4tid="certified user keys"
5
6rm -f $OBJ/authorized_keys_$USER $OBJ/user_ca_key* $OBJ/cert_user_key*
7cp $OBJ/sshd_proxy $OBJ/sshd_proxy_bak
8
9# Create a CA key and add it to authorized_keys
10${SSHKEYGEN} -q -N '' -t rsa  -f $OBJ/user_ca_key ||\
11	fail "ssh-keygen of user_ca_key failed"
12(
13	echo -n 'cert-authority '
14	cat $OBJ/user_ca_key.pub
15) > $OBJ/authorized_keys_$USER
16
17# Generate and sign user keys
18for ktype in rsa dsa ; do 
19	verbose "$tid: sign user ${ktype} cert"
20	${SSHKEYGEN} -q -N '' -t ${ktype} \
21	    -f $OBJ/cert_user_key_${ktype} || \
22		fail "ssh-keygen of cert_user_key_${ktype} failed"
23	${SSHKEYGEN} -q -s $OBJ/user_ca_key -I \
24	    "regress user key for $USER" \
25	    -n $USER $OBJ/cert_user_key_${ktype} ||
26		fail "couldn't sign cert_user_key_${ktype}"
27done
28
29# Basic connect tests
30for privsep in yes no ; do
31	for ktype in rsa dsa ; do 
32		verbose "$tid: user ${ktype} cert connect privsep $privsep"
33		(
34			cat $OBJ/sshd_proxy_bak
35			echo "UsePrivilegeSeparation $privsep"
36		) > $OBJ/sshd_proxy
37
38		${SSH} -2i $OBJ/cert_user_key_${ktype} -F $OBJ/ssh_proxy \
39		    somehost true
40		if [ $? -ne 0 ]; then
41			fail "ssh cert connect failed"
42		fi
43	done
44done
45
46verbose "$tid: ensure CA key does not authenticate user"
47${SSH} -2i $OBJ/user_ca_key -F $OBJ/ssh_proxy somehost true >/dev/null 2>&1
48if [ $? -eq 0 ]; then
49	fail "ssh cert connect with CA key succeeded unexpectedly"
50fi
51
52test_one() {
53	ident=$1
54	result=$2
55	sign_opts=$3
56	
57	verbose "$tid: test user cert connect $ident expect $result"
58
59	${SSHKEYGEN} -q -s $OBJ/user_ca_key -I "regress user key for $USER" \
60	    $sign_opts \
61	    $OBJ/cert_user_key_rsa ||
62		fail "couldn't sign cert_user_key_rsa"
63
64	${SSH} -2i $OBJ/cert_user_key_rsa -F $OBJ/ssh_proxy \
65	    somehost true >/dev/null 2>&1
66	rc=$?
67	if [ "x$result" = "xsuccess" ] ; then
68		if [ $rc -ne 0 ]; then
69			fail "ssh cert connect $ident failed unexpectedly"
70		fi
71	else
72		if [ $rc -eq 0 ]; then
73			fail "ssh cert connect $ident succeeded unexpectedly"
74		fi
75	fi
76	cleanup
77}
78
79test_one "host-certificate"	failure "-h"
80test_one "empty principals"	success ""
81test_one "wrong principals"	failure "-n foo"
82test_one "cert not yet valid"	failure "-V20200101:20300101"
83test_one "cert expired"		failure "-V19800101:19900101"
84test_one "cert valid interval"	success "-V-1w:+2w"
85test_one "wrong source-address"	failure "-Osource-address=10.0.0.0/8"
86test_one "force-command"	failure "-Oforce-command=false"
87
88# Wrong certificate
89for ktype in rsa dsa ; do 
90	# Self-sign
91	${SSHKEYGEN} -q -s $OBJ/cert_user_key_${ktype} -I \
92	    "regress user key for $USER" \
93	    -n $USER $OBJ/cert_user_key_${ktype} ||
94		fail "couldn't sign cert_user_key_${ktype}"
95	verbose "$tid: user ${ktype} connect wrong cert"
96	${SSH} -2i $OBJ/cert_user_key_${ktype} -F $OBJ/ssh_proxy \
97	    somehost true >/dev/null 2>&1
98	if [ $? -eq 0 ]; then
99		fail "ssh cert connect $ident succeeded unexpectedly"
100	fi
101done
102
103rm -f $OBJ/authorized_keys_$USER $OBJ/user_ca_key* $OBJ/cert_user_key*
104