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218 lines
7.0 KiB
Bash
218 lines
7.0 KiB
Bash
# $OpenBSD: krl.sh,v 1.11 2019/12/16 02:39:05 djm Exp $
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# Placed in the Public Domain.
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tid="key revocation lists"
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# Use ed25519 by default since it's fast and it's supported when building
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# w/out OpenSSL. Populate ktype[2-4] with the other types if supported.
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ktype1=ed25519; ktype2=ed25519; ktype3=ed25519;
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ktype4=ed25519; ktype5=ed25519; ktype6=ed25519;
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for t in $SSH_KEYTYPES; do
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case "$t" in
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ecdsa*) ktype2=ecdsa ;;
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ssh-rsa) ktype3=rsa ;;
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ssh-dss) ktype4=dsa ;;
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sk-ssh-ed25519@openssh.com) ktype5=ed25519-sk ;;
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sk-ecdsa-sha2-nistp256@openssh.com) ktype6=ecdsa-sk ;;
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esac
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done
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# Do most testing with ssh-keygen; it uses the same verification code as sshd.
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# Old keys will interfere with ssh-keygen.
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rm -f $OBJ/revoked-* $OBJ/krl-*
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# Generate a CA key
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$SSHKEYGEN -t $ktype1 -f $OBJ/revoked-ca -C "" -N "" > /dev/null ||
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fatal "$SSHKEYGEN CA failed"
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$SSHKEYGEN -t $ktype2 -f $OBJ/revoked-ca2 -C "" -N "" > /dev/null ||
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fatal "$SSHKEYGEN CA2 failed"
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# A specification that revokes some certificates by serial numbers
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# The serial pattern is chosen to ensure the KRL includes list, range and
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# bitmap sections.
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cat << EOF >> $OBJ/revoked-serials
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serial: 1-4
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serial: 10
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serial: 15
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serial: 30
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serial: 50
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serial: 90
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serial: 999
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# The following sum to 500-799
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serial: 500
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serial: 501
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serial: 502
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serial: 503-600
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serial: 700-797
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serial: 798
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serial: 799
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serial: 599-701
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# Some multiple consecutive serial number ranges
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serial: 10000-20000
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serial: 30000-40000
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EOF
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# A specification that revokes some certificated by key ID.
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touch $OBJ/revoked-keyid
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for n in 1 2 3 4 10 15 30 50 90 `jot 500 300` 999 1000 1001 1002; do
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test "x$n" = "x499" && continue
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# Fill in by-ID revocation spec.
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echo "id: revoked $n" >> $OBJ/revoked-keyid
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done
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keygen() {
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N=$1
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f=$OBJ/revoked-`printf "%04d" $N`
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# Vary the keytype. We use mostly ed25519 since this is fast and well
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# supported.
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keytype=$ktype1
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case $N in
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2 | 10 | 510 | 1001) keytype=$ktype2 ;;
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4 | 30 | 520 | 1002) keytype=$ktype3 ;;
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8 | 50 | 530 | 1003) keytype=$ktype4 ;;
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16 | 70 | 540 | 1004) keytype=$ktype5 ;;
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32 | 90 | 550 | 1005) keytype=$ktype6 ;;
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esac
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$SSHKEYGEN -t $keytype -f $f -C "" -N "" > /dev/null \
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|| fatal "$SSHKEYGEN failed"
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# Sign cert
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$SSHKEYGEN -s $OBJ/revoked-ca -z $n -I "revoked $N" $f >/dev/null 2>&1 \
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|| fatal "$SSHKEYGEN sign failed"
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echo $f
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}
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# Generate some keys.
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verbose "$tid: generating test keys"
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REVOKED_SERIALS="1 4 10 50 90 500 510 520 550 799 999"
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for n in $REVOKED_SERIALS ; do
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f=`keygen $n`
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RKEYS="$RKEYS ${f}.pub"
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RCERTS="$RCERTS ${f}-cert.pub"
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done
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UNREVOKED_SERIALS="5 9 14 16 29 49 51 499 800 1010 1011"
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UNREVOKED=""
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for n in $UNREVOKED_SERIALS ; do
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f=`keygen $n`
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UKEYS="$UKEYS ${f}.pub"
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UCERTS="$UCERTS ${f}-cert.pub"
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done
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# Specifications that revoke keys by hash.
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touch $OBJ/revoked-sha1 $OBJ/revoked-sha256 $OBJ/revoked-hash
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for rkey in $RKEYS; do
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(printf "sha1: "; cat $rkey) >> $OBJ/revoked-sha1
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(printf "sha256: "; cat $rkey) >> $OBJ/revoked-sha256
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(printf "hash: "; $SSHKEYGEN -lf $rkey | \
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awk '{ print $2 }') >> $OBJ/revoked-hash
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done
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genkrls() {
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OPTS=$1
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$SSHKEYGEN $OPTS -kf $OBJ/krl-empty - </dev/null \
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>/dev/null || fatal "$SSHKEYGEN KRL failed"
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$SSHKEYGEN $OPTS -kf $OBJ/krl-keys $RKEYS \
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>/dev/null || fatal "$SSHKEYGEN KRL failed"
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$SSHKEYGEN $OPTS -kf $OBJ/krl-cert $RCERTS \
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>/dev/null || fatal "$SSHKEYGEN KRL failed"
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$SSHKEYGEN $OPTS -kf $OBJ/krl-all $RKEYS $RCERTS \
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>/dev/null || fatal "$SSHKEYGEN KRL failed"
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$SSHKEYGEN $OPTS -kf $OBJ/krl-ca $OBJ/revoked-ca.pub \
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>/dev/null || fatal "$SSHKEYGEN KRL failed"
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$SSHKEYGEN $OPTS -kf $OBJ/krl-sha1 $OBJ/revoked-sha1 \
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>/dev/null 2>&1 || fatal "$SSHKEYGEN KRL failed"
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$SSHKEYGEN $OPTS -kf $OBJ/krl-sha256 $OBJ/revoked-sha256 \
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>/dev/null 2>&1 || fatal "$SSHKEYGEN KRL failed"
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$SSHKEYGEN $OPTS -kf $OBJ/krl-hash $OBJ/revoked-hash \
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>/dev/null 2>&1 || fatal "$SSHKEYGEN KRL failed"
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# This should fail as KRLs from serial/key-id spec need the CA specified.
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$SSHKEYGEN $OPTS -kf $OBJ/krl-serial $OBJ/revoked-serials \
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>/dev/null 2>&1 && fatal "$SSHKEYGEN KRL succeeded unexpectedly"
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$SSHKEYGEN $OPTS -kf $OBJ/krl-keyid $OBJ/revoked-keyid \
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>/dev/null 2>&1 && fatal "$SSHKEYGEN KRL succeeded unexpectedly"
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# These should succeed; they specify an explicit CA key.
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$SSHKEYGEN $OPTS -kf $OBJ/krl-serial -s $OBJ/revoked-ca \
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$OBJ/revoked-serials >/dev/null || fatal "$SSHKEYGEN KRL failed"
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$SSHKEYGEN $OPTS -kf $OBJ/krl-keyid -s $OBJ/revoked-ca.pub \
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$OBJ/revoked-keyid >/dev/null || fatal "$SSHKEYGEN KRL failed"
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# These should succeed; they specify an wildcard CA key.
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$SSHKEYGEN $OPTS -kf $OBJ/krl-serial-wild -s NONE $OBJ/revoked-serials \
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>/dev/null || fatal "$SSHKEYGEN KRL failed"
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$SSHKEYGEN $OPTS -kf $OBJ/krl-keyid-wild -s NONE $OBJ/revoked-keyid \
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>/dev/null || fatal "$SSHKEYGEN KRL failed"
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# Revoke the same serials with the second CA key to ensure a multi-CA
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# KRL is generated.
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$SSHKEYGEN $OPTS -kf $OBJ/krl-serial -u -s $OBJ/revoked-ca2 \
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$OBJ/revoked-serials >/dev/null || fatal "$SSHKEYGEN KRL failed"
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}
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## XXX dump with trace and grep for set cert serials
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## XXX test ranges near (u64)-1, etc.
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verbose "$tid: generating KRLs"
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genkrls
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check_krl() {
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KEY=$1
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KRL=$2
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EXPECT_REVOKED=$3
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TAG=$4
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$SSHKEYGEN -Qf $KRL $KEY >/dev/null
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result=$?
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if test "x$EXPECT_REVOKED" = "xy" -a $result -eq 0 ; then
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fatal "key $KEY not revoked by KRL $KRL: $TAG"
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elif test "x$EXPECT_REVOKED" = "xn" -a $result -ne 0 ; then
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fatal "key $KEY unexpectedly revoked by KRL $KRL: $TAG"
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fi
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}
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test_rev() {
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FILES=$1
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TAG=$2
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KEYS_RESULT=$3
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ALL_RESULT=$4
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HASH_RESULT=$5
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SERIAL_RESULT=$6
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KEYID_RESULT=$7
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CERTS_RESULT=$8
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CA_RESULT=$9
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SERIAL_WRESULT=$10
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KEYID_WRESULT=$11
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verbose "$tid: checking revocations for $TAG"
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for f in $FILES ; do
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check_krl $f $OBJ/krl-empty no "$TAG"
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check_krl $f $OBJ/krl-keys $KEYS_RESULT "$TAG"
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check_krl $f $OBJ/krl-all $ALL_RESULT "$TAG"
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check_krl $f $OBJ/krl-sha1 $HASH_RESULT "$TAG"
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check_krl $f $OBJ/krl-sha256 $HASH_RESULT "$TAG"
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check_krl $f $OBJ/krl-hash $HASH_RESULT "$TAG"
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check_krl $f $OBJ/krl-serial $SERIAL_RESULT "$TAG"
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check_krl $f $OBJ/krl-keyid $KEYID_RESULT "$TAG"
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check_krl $f $OBJ/krl-cert $CERTS_RESULT "$TAG"
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check_krl $f $OBJ/krl-ca $CA_RESULT "$TAG"
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check_krl $f $OBJ/krl-serial-wild $SERIAL_WRESULT "$TAG"
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check_krl $f $OBJ/krl-keyid-wild $KEYID_WRESULT "$TAG"
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done
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}
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test_all() {
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# wildcard
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# keys all hash sr# ID cert CA srl ID
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test_rev "$RKEYS" "revoked keys" y y y n n n n n n
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test_rev "$UKEYS" "unrevoked keys" n n n n n n n n n
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test_rev "$RCERTS" "revoked certs" y y y y y y y y y
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test_rev "$UCERTS" "unrevoked certs" n n n n n n y n n
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}
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test_all
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# Check update. Results should be identical.
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verbose "$tid: testing KRL update"
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for f in $OBJ/krl-keys $OBJ/krl-cert $OBJ/krl-all \
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$OBJ/krl-ca $OBJ/krl-serial $OBJ/krl-keyid \
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$OBJ/krl-serial-wild $OBJ/krl-keyid-wild; do
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cp -f $OBJ/krl-empty $f
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genkrls -u
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done
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test_all
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