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# $OpenBSD: krl.sh,v 1.4 2014/11/17 00:21:40 djm Exp $
# Placed in the Public Domain.
tid="key revocation lists"
# If we don't support ecdsa keys then this tell will be much slower.
ECDSA=ecdsa
if test "x$TEST_SSH_ECC" != "xyes"; then
ECDSA=rsa
fi
# Do most testing with ssh-keygen; it uses the same verification code as sshd.
# Old keys will interfere with ssh-keygen.
rm -f $OBJ/revoked-* $OBJ/krl-*
# Generate a CA key
$SSHKEYGEN -t $ECDSA -f $OBJ/revoked-ca -C "" -N "" > /dev/null ||
fatal "$SSHKEYGEN CA failed"
$SSHKEYGEN -t ed25519 -f $OBJ/revoked-ca2 -C "" -N "" > /dev/null ||
fatal "$SSHKEYGEN CA2 failed"
# A specification that revokes some certificates by serial numbers
# The serial pattern is chosen to ensure the KRL includes list, range and
# bitmap sections.
cat << EOF >> $OBJ/revoked-serials
serial: 1-4
serial: 10
serial: 15
serial: 30
serial: 50
serial: 999
# The following sum to 500-799
serial: 500
serial: 501
serial: 502
serial: 503-600
serial: 700-797
serial: 798
serial: 799
serial: 599-701
# Some multiple consecutive serial number ranges
serial: 10000-20000
serial: 30000-40000
EOF
# A specification that revokes some certificated by key ID.
touch $OBJ/revoked-keyid
for n in 1 2 3 4 10 15 30 50 `jot 500 300` 999 1000 1001 1002; do
# Fill in by-ID revocation spec.
echo "id: revoked $n" >> $OBJ/revoked-keyid
done
keygen() {
N=$1
f=$OBJ/revoked-`printf "%04d" $N`
# Vary the keytype. We use mostly ECDSA since this is fastest by far.
keytype=$ECDSA
case $N in
2 | 10 | 510 | 1001) keytype=rsa;;
4 | 30 | 520 | 1002) keytype=dsa;;
esac
$SSHKEYGEN -t $keytype -f $f -C "" -N "" > /dev/null \
|| fatal "$SSHKEYGEN failed"
# Sign cert
$SSHKEYGEN -s $OBJ/revoked-ca -z $n -I "revoked $N" $f >/dev/null 2>&1 \
|| fatal "$SSHKEYGEN sign failed"
echo $f
}
# Generate some keys.
verbose "$tid: generating test keys"
REVOKED_SERIALS="1 4 10 50 500 510 520 799 999"
for n in $REVOKED_SERIALS ; do
f=`keygen $n`
REVOKED_KEYS="$REVOKED_KEYS ${f}.pub"
REVOKED_CERTS="$REVOKED_CERTS ${f}-cert.pub"
done
NOTREVOKED_SERIALS="5 9 14 16 29 30 49 51 499 800 1000 1001"
NOTREVOKED=""
for n in $NOTREVOKED_SERIALS ; do
NOTREVOKED_KEYS="$NOTREVOKED_KEYS ${f}.pub"
NOTREVOKED_CERTS="$NOTREVOKED_CERTS ${f}-cert.pub"
done
genkrls() {
OPTS=$1
$SSHKEYGEN $OPTS -kf $OBJ/krl-empty - </dev/null \
>/dev/null || fatal "$SSHKEYGEN KRL failed"
$SSHKEYGEN $OPTS -kf $OBJ/krl-keys $REVOKED_KEYS \
>/dev/null || fatal "$SSHKEYGEN KRL failed"
$SSHKEYGEN $OPTS -kf $OBJ/krl-cert $REVOKED_CERTS \
>/dev/null || fatal "$SSHKEYGEN KRL failed"
$SSHKEYGEN $OPTS -kf $OBJ/krl-all $REVOKED_KEYS $REVOKED_CERTS \
>/dev/null || fatal "$SSHKEYGEN KRL failed"
$SSHKEYGEN $OPTS -kf $OBJ/krl-ca $OBJ/revoked-ca.pub \
>/dev/null || fatal "$SSHKEYGEN KRL failed"
# This should fail as KRLs from serial/key-id spec need the CA specified.
$SSHKEYGEN $OPTS -kf $OBJ/krl-serial $OBJ/revoked-serials \
>/dev/null 2>&1 && fatal "$SSHKEYGEN KRL succeeded unexpectedly"
$SSHKEYGEN $OPTS -kf $OBJ/krl-keyid $OBJ/revoked-keyid \
>/dev/null 2>&1 && fatal "$SSHKEYGEN KRL succeeded unexpectedly"
$SSHKEYGEN $OPTS -kf $OBJ/krl-serial -s $OBJ/revoked-ca $OBJ/revoked-serials \
>/dev/null || fatal "$SSHKEYGEN KRL failed"
# Revoke the same serials with the second CA key to ensure a multi-CA
# KRL is generated.
$SSHKEYGEN $OPTS -kf $OBJ/krl-serial -u -s $OBJ/revoked-ca2 \
$OBJ/revoked-serials >/dev/null || fatal "$SSHKEYGEN KRL failed"
$SSHKEYGEN $OPTS -kf $OBJ/krl-keyid -s $OBJ/revoked-ca.pub $OBJ/revoked-keyid \
>/dev/null || fatal "$SSHKEYGEN KRL failed"
}
## XXX dump with trace and grep for set cert serials
## XXX test ranges near (u64)-1, etc.
verbose "$tid: generating KRLs"
genkrls
check_krl() {
KEY=$1
KRL=$2
EXPECT_REVOKED=$3
TAG=$4
$SSHKEYGEN -Qf $KRL $KEY >/dev/null
result=$?
if test "x$EXPECT_REVOKED" = "xyes" -a $result -eq 0 ; then
fatal "key $KEY not revoked by KRL $KRL: $TAG"
elif test "x$EXPECT_REVOKED" = "xno" -a $result -ne 0 ; then
fatal "key $KEY unexpectedly revoked by KRL $KRL: $TAG"
fi
}
test_all() {
FILES=$1
TAG=$2
KEYS_RESULT=$3
ALL_RESULT=$4
SERIAL_RESULT=$5
KEYID_RESULT=$6
CERTS_RESULT=$7
CA_RESULT=$8
verbose "$tid: checking revocations for $TAG"
for f in $FILES ; do
check_krl $f $OBJ/krl-empty no "$TAG"
check_krl $f $OBJ/krl-keys $KEYS_RESULT "$TAG"
check_krl $f $OBJ/krl-all $ALL_RESULT "$TAG"
check_krl $f $OBJ/krl-serial $SERIAL_RESULT "$TAG"
check_krl $f $OBJ/krl-keyid $KEYID_RESULT "$TAG"
check_krl $f $OBJ/krl-cert $CERTS_RESULT "$TAG"
check_krl $f $OBJ/krl-ca $CA_RESULT "$TAG"
done
}
# keys all serial keyid certs CA
test_all "$REVOKED_KEYS" "revoked keys" yes yes no no no no
test_all "$UNREVOKED_KEYS" "unrevoked keys" no no no no no no
test_all "$REVOKED_CERTS" "revoked certs" yes yes yes yes yes yes
test_all "$UNREVOKED_CERTS" "unrevoked certs" no no no no no yes
# Check update. Results should be identical.
verbose "$tid: testing KRL update"
for f in $OBJ/krl-keys $OBJ/krl-cert $OBJ/krl-all \
$OBJ/krl-ca $OBJ/krl-serial $OBJ/krl-keyid ; do
cp -f $OBJ/krl-empty $f
genkrls -u
done
# keys all serial keyid certs CA
test_all "$REVOKED_KEYS" "revoked keys" yes yes no no no no
test_all "$UNREVOKED_KEYS" "unrevoked keys" no no no no no no
test_all "$REVOKED_CERTS" "revoked certs" yes yes yes yes yes yes
test_all "$UNREVOKED_CERTS" "unrevoked certs" no no no no no yes
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