blob: 9b22733531812f1d5a9246d2097c6746e6b60a69 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
|
# $OpenBSD: multipubkey.sh,v 1.3 2019/12/11 18:47:14 djm Exp $
# Placed in the Public Domain.
tid="multiple pubkey"
rm -f $OBJ/authorized_keys_$USER $OBJ/user_ca_key* $OBJ/user_key*
rm -f $OBJ/authorized_principals_$USER $OBJ/cert_user_key*
mv $OBJ/sshd_proxy $OBJ/sshd_proxy.orig
mv $OBJ/ssh_proxy $OBJ/ssh_proxy.orig
# Create a CA key
${SSHKEYGEN} -q -N '' -t ed25519 -f $OBJ/user_ca_key ||\
fatal "ssh-keygen failed"
# Make some keys and a certificate.
${SSHKEYGEN} -q -N '' -t ed25519 -f $OBJ/user_key1 || \
fatal "ssh-keygen failed"
${SSHKEYGEN} -q -N '' -t ed25519 -f $OBJ/user_key2 || \
fatal "ssh-keygen failed"
${SSHKEYGEN} -q -s $OBJ/user_ca_key -I "regress user key for $USER" \
-z $$ -n ${USER},mekmitasdigoat $OBJ/user_key1 ||
fail "couldn't sign user_key1"
# Copy the private key alongside the cert to allow better control of when
# it is offered.
mv $OBJ/user_key1-cert.pub $OBJ/cert_user_key1.pub
cp -p $OBJ/user_key1 $OBJ/cert_user_key1
grep -v IdentityFile $OBJ/ssh_proxy.orig > $OBJ/ssh_proxy
opts="-oProtocol=2 -F $OBJ/ssh_proxy -oIdentitiesOnly=yes"
opts="$opts -i $OBJ/cert_user_key1 -i $OBJ/user_key1 -i $OBJ/user_key2"
for privsep in yes ; do
(
grep -v "Protocol" $OBJ/sshd_proxy.orig
echo "Protocol 2"
echo "UsePrivilegeSeparation $privsep"
echo "AuthenticationMethods publickey,publickey"
echo "TrustedUserCAKeys $OBJ/user_ca_key.pub"
echo "AuthorizedPrincipalsFile $OBJ/authorized_principals_%u"
) > $OBJ/sshd_proxy
# Single key should fail.
rm -f $OBJ/authorized_principals_$USER
cat $OBJ/user_key1.pub > $OBJ/authorized_keys_$USER
${SSH} $opts proxy true && fail "ssh succeeded with key"
# Single key with same-public cert should fail.
echo mekmitasdigoat > $OBJ/authorized_principals_$USER
cat $OBJ/user_key1.pub > $OBJ/authorized_keys_$USER
${SSH} $opts proxy true && fail "ssh succeeded with key+cert"
# Multiple plain keys should succeed.
rm -f $OBJ/authorized_principals_$USER
cat $OBJ/user_key1.pub $OBJ/user_key2.pub > \
$OBJ/authorized_keys_$USER
${SSH} $opts proxy true || fail "ssh failed with multiple keys"
# Cert and different key should succeed
# Key and different-public cert should succeed.
echo mekmitasdigoat > $OBJ/authorized_principals_$USER
cat $OBJ/user_key2.pub > $OBJ/authorized_keys_$USER
${SSH} $opts proxy true || fail "ssh failed with key/cert"
done
|
