Adding upstream version 1:9.16.44.upstream/1%9.16.44

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1470 insertions, 0 deletions

diff --git a/bin/tests/system/kasp/ns3/setup.sh b/bin/tests/system/kasp/ns3/setup.sh
new file mode 100644
index 0000000..8682f54
--- /dev/null
+++ b/bin/tests/system/kasp/ns3/setup.sh
@@ -0,0 +1,1470 @@
+#!/bin/sh -e
+
+# Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+#
+# SPDX-License-Identifier: MPL-2.0
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0.  If a copy of the MPL was not distributed with this
+# file, you can obtain one at https://mozilla.org/MPL/2.0/.
+#
+# See the COPYRIGHT file distributed with this work for additional
+# information regarding copyright ownership.
+
+# shellcheck source=conf.sh
+. "$SYSTEMTESTTOP/conf.sh"
+
+echo_i "ns3/setup.sh"
+
+setup() {
+	zone="$1"
+	echo_i "setting up zone: $zone"
+	zonefile="${zone}.db"
+	infile="${zone}.db.infile"
+	echo "$zone" >> zones
+}
+
+# Set in the key state files the Predecessor/Successor fields.
+# Key $1 is the predecessor of key $2.
+key_successor() {
+	id1=$(keyfile_to_key_id "$1")
+	id2=$(keyfile_to_key_id "$2")
+	echo "Predecessor: ${id1}" >> "${2}.state"
+	echo "Successor: ${id2}" >> "${1}.state"
+}
+
+# Make lines shorter by storing key states in environment variables.
+H="HIDDEN"
+R="RUMOURED"
+O="OMNIPRESENT"
+U="UNRETENTIVE"
+
+#
+# Set up zones that will be initially signed.
+#
+for zn in default dnssec-keygen some-keys legacy-keys pregenerated \
+	  rumoured rsasha256 rsasha512 ecdsa256 ecdsa384 \
+	  dynamic dynamic-inline-signing inline-signing \
+	  checkds-ksk checkds-doubleksk checkds-csk inherit unlimited \
+	  manual-rollover multisigner-model2
+do
+	setup "${zn}.kasp"
+	cp template.db.in "$zonefile"
+done
+
+#
+# Set up RSASHA1 based zones
+#
+for zn in rsasha1 rsasha1-nsec3
+do
+	if (cd ..; $SHELL ../testcrypto.sh -q RSASHA1)
+	then
+		setup "${zn}.kasp"
+		cp template.db.in "$zonefile"
+	else
+		# don't add to zones.
+		echo_i "setting up zone: ${zn}.kasp"
+		cp template.db.in "${zn}.kasp.db"
+	fi
+done
+
+if [ -f ../ed25519-supported.file ]; then
+	setup "ed25519.kasp"
+	cp template.db.in "$zonefile"
+	cat ed25519.conf >> named.conf
+fi
+
+if [ -f ../ed448-supported.file ]; then
+	setup "ed448.kasp"
+	cp template.db.in "$zonefile"
+	cat ed448.conf >> named.conf
+fi
+
+# Set up zones that stay unsigned.
+for zn in unsigned insecure max-zone-ttl
+do
+	zone="${zn}.kasp"
+	echo_i "setting up zone: $zone"
+	zonefile="${zone}.db"
+	infile="${zone}.db.infile"
+	cp template.db.in $infile
+	cp template.db.in $zonefile
+done
+
+# Some of these zones already have keys.
+zone="dnssec-keygen.kasp"
+echo_i "setting up zone: $zone"
+$KEYGEN -k rsasha256 -l policies/kasp.conf $zone > keygen.out.$zone.1 2>&1
+
+zone="some-keys.kasp"
+echo_i "setting up zone: $zone"
+$KEYGEN -G -a RSASHA256 -b 2048 -L 1234 $zone > keygen.out.$zone.1 2>&1
+$KEYGEN -G -a RSASHA256 -f KSK  -L 1234 $zone > keygen.out.$zone.2 2>&1
+
+zone="legacy-keys.kasp"
+echo_i "setting up zone: $zone"
+ZSK=$($KEYGEN -a RSASHA256 -b 2048 -L 1234 $zone 2> keygen.out.$zone.1)
+KSK=$($KEYGEN -a RSASHA256 -f KSK  -L 1234 $zone 2> keygen.out.$zone.2)
+echo $ZSK > legacy-keys.kasp.zsk
+echo $KSK > legacy-keys.kasp.ksk
+# Predecessor keys:
+Tact="now-9mo"
+Tret="now-3mo"
+ZSK=$($KEYGEN -a RSASHA256 -b 2048 -L 1234 $zone 2> keygen.out.$zone.3)
+KSK=$($KEYGEN -a RSASHA256 -f KSK  -L 1234 $zone 2> keygen.out.$zone.4)
+$SETTIME -P $Tact -A $Tact -I $Tret -D $Tret "$ZSK"  > settime.out.$zone.1 2>&1
+$SETTIME -P $Tact -A $Tact -I $Tret -D $Tret "$KSK"  > settime.out.$zone.2 2>&1
+
+zone="pregenerated.kasp"
+echo_i "setting up zone: $zone"
+$KEYGEN -G -k rsasha256 -l policies/kasp.conf $zone > keygen.out.$zone.1 2>&1
+$KEYGEN -G -k rsasha256 -l policies/kasp.conf $zone > keygen.out.$zone.2 2>&1
+
+zone="multisigner-model2.kasp"
+echo_i "setting up zone: $zone"
+# Import the ZSK sets of the other providers into their DNSKEY RRset.
+ZSK1=$($KEYGEN -K ../ -a $DEFAULT_ALGORITHM -L 3600 $zone 2> keygen.out.$zone.1)
+ZSK2=$($KEYGEN -K ../ -a $DEFAULT_ALGORITHM -L 3600 $zone 2> keygen.out.$zone.2)
+# ZSK1 will be added to the unsigned zonefile.
+cat "../${ZSK1}.key" | grep -v ";.*" >> "${zone}.db"
+cat "../${ZSK1}.key" | grep -v ";.*" > "${zone}.zsk1"
+rm -f "../${ZSK1}.*"
+# ZSK2 will be used with a Dynamic Update.
+cat "../${ZSK2}.key" | grep -v ";.*" > "${zone}.zsk2"
+rm -f "../${ZSK2}.*"
+
+zone="rumoured.kasp"
+echo_i "setting up zone: $zone"
+Tpub="now"
+Tact="now+1d"
+keytimes="-P ${Tpub} -A ${Tact}"
+KSK=$($KEYGEN  -a RSASHA256 -f KSK  -L 1234 $keytimes $zone 2> keygen.out.$zone.1)
+ZSK1=$($KEYGEN -a RSASHA256 -b 3072 -L 1234 $keytimes $zone 2> keygen.out.$zone.2)
+ZSK2=$($KEYGEN -a RSASHA256         -L 1234 $keytimes $zone 2> keygen.out.$zone.3)
+$SETTIME -s -g $O -k $R $Tpub -r $R $Tpub -d $H $Tpub  "$KSK"  > settime.out.$zone.1 2>&1
+$SETTIME -s -g $O -k $R $Tpub -z $R $Tpub              "$ZSK1" > settime.out.$zone.2 2>&1
+$SETTIME -s -g $O -k $R $Tpub -z $R $Tpub              "$ZSK2" > settime.out.$zone.2 2>&1
+
+#
+# Set up zones that are already signed.
+#
+
+# Zone to test manual rollover.
+setup manual-rollover.kasp
+T="now-1d"
+ksktimes="-P $T -A $T -P sync $T"
+zsktimes="-P $T -A $T"
+KSK=$($KEYGEN -a $DEFAULT_ALGORITHM -L 3600 -f KSK $ksktimes $zone 2> keygen.out.$zone.1)
+ZSK=$($KEYGEN -a $DEFAULT_ALGORITHM -L 3600        $zsktimes $zone 2> keygen.out.$zone.2)
+$SETTIME -s -g $O -d $O $T -k $O $T -r $O $T "$KSK" > settime.out.$zone.1 2>&1
+$SETTIME -s -g $O -k $O $T -z $O $T          "$ZSK" > settime.out.$zone.2 2>&1
+cat template.db.in "${KSK}.key" "${ZSK}.key" > "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$KSK" >> "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$ZSK" >> "$infile"
+cp $infile $zonefile
+$SIGNER -PS -x -o $zone -O raw -f "${zonefile}.signed" $infile > signer.out.$zone.1 2>&1
+
+# These signatures are set to expire long in the past, update immediately.
+setup expired-sigs.autosign
+T="now-6mo"
+ksktimes="-P $T -A $T -P sync $T"
+zsktimes="-P $T -A $T"
+KSK=$($KEYGEN -a $DEFAULT_ALGORITHM -L 300 -f KSK $ksktimes $zone 2> keygen.out.$zone.1)
+ZSK=$($KEYGEN -a $DEFAULT_ALGORITHM -L 300        $zsktimes $zone 2> keygen.out.$zone.2)
+$SETTIME -s -g $O -d $O $T -k $O $T -r $O $T "$KSK" > settime.out.$zone.1 2>&1
+$SETTIME -s -g $O -k $O $T -z $O $T          "$ZSK" > settime.out.$zone.2 2>&1
+cat template.db.in "${KSK}.key" "${ZSK}.key" > "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$KSK" >> "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$ZSK" >> "$infile"
+cp $infile $zonefile
+$SIGNER -PS -x -s now-2mo -e now-1mo -o $zone -O raw -f "${zonefile}.signed" $infile > signer.out.$zone.1 2>&1
+
+# These signatures are still good, and can be reused.
+setup fresh-sigs.autosign
+T="now-6mo"
+ksktimes="-P $T -A $T -P sync $T"
+zsktimes="-P $T -A $T"
+KSK=$($KEYGEN -a $DEFAULT_ALGORITHM -L 300 -f KSK $ksktimes $zone 2> keygen.out.$zone.1)
+ZSK=$($KEYGEN -a $DEFAULT_ALGORITHM -L 300        $zsktimes $zone 2> keygen.out.$zone.2)
+$SETTIME -s -g $O -d $O $T -k $O $T -r $O $T "$KSK" > settime.out.$zone.1 2>&1
+$SETTIME -s -g $O -k $O $T -z $O $T          "$ZSK" > settime.out.$zone.2 2>&1
+cat template.db.in "${KSK}.key" "${ZSK}.key" > "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$KSK" >> "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$ZSK" >> "$infile"
+cp $infile $zonefile
+$SIGNER -S -x -s now-1h -e now+2w -o $zone -O raw -f "${zonefile}.signed" $infile > signer.out.$zone.1 2>&1
+
+# These signatures are still good, but not fresh enough, update immediately.
+setup unfresh-sigs.autosign
+T="now-6mo"
+ksktimes="-P $T -A $T -P sync $T"
+zsktimes="-P $T -A $T"
+KSK=$($KEYGEN -a $DEFAULT_ALGORITHM -L 300 -f KSK $ksktimes $zone 2> keygen.out.$zone.1)
+ZSK=$($KEYGEN -a $DEFAULT_ALGORITHM -L 300        $zsktimes $zone 2> keygen.out.$zone.2)
+$SETTIME -s -g $O -d $O $T -k $O $T -r $O $T "$KSK" > settime.out.$zone.1 2>&1
+$SETTIME -s -g $O -k $O $T -z $O $T          "$ZSK" > settime.out.$zone.2 2>&1
+cat template.db.in "${KSK}.key" "${ZSK}.key" > "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$KSK" >> "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$ZSK" >> "$infile"
+cp $infile $zonefile
+$SIGNER -S -x -s now-1w -e now+1w -o $zone -O raw -f "${zonefile}.signed" $infile > signer.out.$zone.1 2>&1
+
+# These signatures are still good, but the private KSK is missing.
+setup ksk-missing.autosign
+T="now-6mo"
+ksktimes="-P $T -A $T -P sync $T"
+zsktimes="-P $T -A $T"
+KSK=$($KEYGEN -a $DEFAULT_ALGORITHM -L 300 -f KSK $ksktimes $zone 2> keygen.out.$zone.1)
+ZSK=$($KEYGEN -a $DEFAULT_ALGORITHM -L 300        $zsktimes $zone 2> keygen.out.$zone.2)
+$SETTIME -s -g $O -d $O $T -k $O $T -r $O $T "$KSK" > settime.out.$zone.1 2>&1
+$SETTIME -s -g $O -k $O $T -z $O $T          "$ZSK" > settime.out.$zone.2 2>&1
+cat template.db.in "${KSK}.key" "${ZSK}.key" > "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$KSK" >> "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$ZSK" >> "$infile"
+cp $infile $zonefile
+$SIGNER -S -x -s now-1w -e now+1w -o $zone -O raw -f "${zonefile}.signed" $infile > signer.out.$zone.1 2>&1
+echo "KSK: yes" >> "${KSK}".state
+echo "ZSK: no" >> "${KSK}".state
+echo "Lifetime: 63072000" >> "${KSK}".state # PT2Y
+rm -f "${KSK}".private
+
+# These signatures are still good, but the private ZSK is missing.
+setup zsk-missing.autosign
+T="now-6mo"
+ksktimes="-P $T -A $T -P sync $T"
+zsktimes="-P $T -A $T"
+KSK=$($KEYGEN -a $DEFAULT_ALGORITHM -L 300 -f KSK $ksktimes $zone 2> keygen.out.$zone.1)
+ZSK=$($KEYGEN -a $DEFAULT_ALGORITHM -L 300        $zsktimes $zone 2> keygen.out.$zone.2)
+$SETTIME -s -g $O -d $O $T -k $O $T -r $O $T "$KSK" > settime.out.$zone.1 2>&1
+$SETTIME -s -g $O -k $O $T -z $O $T          "$ZSK" > settime.out.$zone.2 2>&1
+cat template.db.in "${KSK}.key" "${ZSK}.key" > "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$KSK" >> "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$ZSK" >> "$infile"
+cp $infile $zonefile
+$SIGNER -S -x -s now-1w -e now+1w -o $zone -O raw -f "${zonefile}.signed" $infile > signer.out.$zone.1 2>&1
+echo "KSK: no" >> "${ZSK}".state
+echo "ZSK: yes" >> "${ZSK}".state
+echo "Lifetime: 31536000" >> "${ZSK}".state # PT1Y
+rm -f "${ZSK}".private
+
+# These signatures are already expired, and the private ZSK is retired.
+setup zsk-retired.autosign
+T="now-6mo"
+ksktimes="-P $T -A $T -P sync $T"
+zsktimes="-P $T -A $T -I now"
+KSK=$($KEYGEN -a $DEFAULT_ALGORITHM -L 300 -f KSK $ksktimes $zone 2> keygen.out.$zone.1)
+ZSK=$($KEYGEN -a $DEFAULT_ALGORITHM -L 300        $zsktimes $zone 2> keygen.out.$zone.2)
+$SETTIME -s -g $O -d $O $T -k $O $T -r $O $T "$KSK" > settime.out.$zone.1 2>&1
+$SETTIME -s -g $O -k $O $T -z $O $T          "$ZSK" > settime.out.$zone.2 2>&1
+cat template.db.in "${KSK}.key" "${ZSK}.key" > "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$KSK" >> "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$ZSK" >> "$infile"
+cp $infile $zonefile
+$SIGNER -PS -x -s now-2w -e now-1mi -o $zone -O raw -f "${zonefile}.signed" $infile > signer.out.$zone.1 2>&1
+$SETTIME -s -g HIDDEN "$ZSK" > settime.out.$zone.3 2>&1
+
+#
+# The zones at enable-dnssec.autosign represent the various steps of the
+# initial signing of a zone.
+#
+
+# Step 1:
+# This is an unsigned zone and named should perform the initial steps of
+# introducing the DNSSEC records in the right order.
+setup step1.enable-dnssec.autosign
+cp template.db.in $zonefile
+
+# Step 2:
+# The DNSKEY has been published long enough to become OMNIPRESENT.
+setup step2.enable-dnssec.autosign
+# DNSKEY TTL:             300 seconds
+# zone-propagation-delay: 5 minutes (300 seconds)
+# publish-safety:         5 minutes (300 seconds)
+# Total:                  900 seconds
+TpubN="now-900s"
+# RRSIG TTL:              12 hour (43200 seconds)
+# zone-propagation-delay: 5 minutes (300 seconds)
+# retire-safety:          20 minutes (1200 seconds)
+# Already passed time:    -900 seconds
+# Total:                  43800 seconds
+TsbmN="now+43800s"
+keytimes="-P ${TpubN} -P sync ${TsbmN} -A ${TpubN}"
+CSK=$($KEYGEN -k enable-dnssec -l policies/autosign.conf $keytimes $zone 2> keygen.out.$zone.1)
+$SETTIME -s -g $O -k $R $TpubN -r $R $TpubN -d $H $TpubN -z $R $TpubN "$CSK" > settime.out.$zone.1 2>&1
+cat template.db.in "${CSK}.key" > "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$CSK" >> "$infile"
+cp $infile $zonefile
+$SIGNER -S -z -x -s now-1h -e now+30d -o $zone -O raw -f "${zonefile}.signed" $infile > signer.out.$zone.1 2>&1
+
+# Step 3:
+# The zone signatures have been published long enough to become OMNIPRESENT.
+setup step3.enable-dnssec.autosign
+# Passed time since publications: 43800 + 900 = 44700 seconds.
+TpubN="now-44700s"
+# The key is secure for using in chain of trust when the DNSKEY is OMNIPRESENT.
+TcotN="now-43800s"
+# We can submit the DS now.
+TsbmN="now"
+keytimes="-P ${TpubN} -P sync ${TsbmN} -A ${TpubN}"
+CSK=$($KEYGEN -k enable-dnssec -l policies/autosign.conf $keytimes $zone 2> keygen.out.$zone.1)
+$SETTIME -s -g $O -k $O $TcotN -r $O $TcotN -d $H $TpubN -z $R $TpubN "$CSK" > settime.out.$zone.1 2>&1
+cat template.db.in "${CSK}.key" > "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$CSK" >> "$infile"
+cp $infile $zonefile
+$SIGNER -S -z -x -s now-1h -e now+30d -o $zone -O raw -f "${zonefile}.signed" $infile > signer.out.$zone.1 2>&1
+
+# Step 4:
+# The DS has been submitted long enough ago to become OMNIPRESENT.
+setup step4.enable-dnssec.autosign
+# DS TTL:                    2 hour (7200 seconds)
+# parent-propagation-delay:  1 hour (3600 seconds)
+# retire-safety:             20 minutes (1200 seconds)
+# Total aditional time:      12000 seconds
+# 44700 + 12000 = 56700
+TpubN="now-56700s"
+# 43800 + 12000 = 55800
+TcotN="now-55800s"
+TsbmN="now-12000s"
+keytimes="-P ${TpubN} -P sync ${TsbmN} -A ${TpubN}"
+CSK=$($KEYGEN -k enable-dnssec -l policies/autosign.conf $keytimes $zone 2> keygen.out.$zone.1)
+$SETTIME -s -g $O -P ds $TsbmN -k $O $TcotN -r $O $TcotN -d $R $TsbmN -z $O $TsbmN "$CSK" > settime.out.$zone.1 2>&1
+cat template.db.in "${CSK}.key" > "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$CSK" >> "$infile"
+cp $infile $zonefile
+$SIGNER -S -z -x -s now-1h -e now+30d -o $zone -O raw -f "${zonefile}.signed" $infile > signer.out.$zone.1 2>&1
+setup step4.enable-dnssec.autosign
+
+#
+# The zones at zsk-prepub.autosign represent the various steps of a ZSK
+# Pre-Publication rollover.
+#
+
+# Step 1:
+# Introduce the first key. This will immediately be active.
+setup step1.zsk-prepub.autosign
+TactN="now"
+ksktimes="-P ${TactN} -A ${TactN} -P sync ${TactN}"
+zsktimes="-P ${TactN} -A ${TactN}"
+KSK=$($KEYGEN -a $DEFAULT_ALGORITHM -L 3600 -f KSK $ksktimes $zone 2> keygen.out.$zone.1)
+ZSK=$($KEYGEN -a $DEFAULT_ALGORITHM -L 3600        $zsktimes $zone 2> keygen.out.$zone.2)
+$SETTIME -s -g $O -k $O $TactN -r $O $TactN -d $O $TactN "$KSK" > settime.out.$zone.1 2>&1
+$SETTIME -s -g $O -k $O $TactN -z $O $TactN              "$ZSK" > settime.out.$zone.2 2>&1
+cat template.db.in "${KSK}.key" "${ZSK}.key" > "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$KSK" >> "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$ZSK" >> "$infile"
+cp $infile $zonefile
+$SIGNER -S -x -s now-1h -e now+2w -o $zone -O raw -f "${zonefile}.signed" $infile > signer.out.$zone.1 2>&1
+
+# Step 2:
+# It is time to pre-publish the successor ZSK.
+setup step2.zsk-prepub.autosign
+# According to RFC 7583:
+#
+# Tpub(N+1) <= Tact(N) + Lzsk - Ipub
+# Ipub = Dprp + TTLkey (+publish-safety)
+#
+#                 |3|   |4|      |5|  |6|
+#                  |     |        |    |
+#   Key N          |<-------Lzsk------>|
+#                  |     |        |    |
+#   Key N+1        |     |<-Ipub->|<-->|
+#                  |     |        |    |
+#   Key N         Tact
+#   Key N+1             Tpub     Trdy Tact
+#
+#                       Tnow
+#
+# Lzsk:           30d
+# Dprp:           1h
+# TTLkey:         1h
+# publish-safety: 1d
+# Ipub:           26h
+#
+# Tact(N) = Tnow + Ipub - Lzsk = now + 26h - 30d
+#         = now + 26h - 30d = now − 694h
+TactN="now-694h"
+ksktimes="-P ${TactN} -A ${TactN} -P sync ${TactN}"
+zsktimes="-P ${TactN} -A ${TactN}"
+KSK=$($KEYGEN -a $DEFAULT_ALGORITHM -L 3600 -f KSK $ksktimes $zone 2> keygen.out.$zone.1)
+ZSK=$($KEYGEN -a $DEFAULT_ALGORITHM -L 3600        $zsktimes $zone 2> keygen.out.$zone.2)
+$SETTIME -s -g $O -k $O $TactN -r $O $TactN -d $O $TactN "$KSK" > settime.out.$zone.1 2>&1
+$SETTIME -s -g $O -k $O $TactN -z $O $TactN              "$ZSK" > settime.out.$zone.2 2>&1
+cat template.db.in "${KSK}.key" "${ZSK}.key" > "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$KSK" >> "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$ZSK" >> "$infile"
+cp $infile $zonefile
+$SIGNER -S -x -s now-1h -e now+2w -o $zone -O raw -f "${zonefile}.signed" $infile > signer.out.$zone.1 2>&1
+
+# Step 3:
+# After the publication interval has passed the DNSKEY of the successor ZSK
+# is OMNIPRESENT and the zone can thus be signed with the successor ZSK.
+setup step3.zsk-prepub.autosign
+# According to RFC 7583:
+#
+# Tpub(N+1) <= Tact(N) + Lzsk - Ipub
+# Tret(N) = Tact(N+1) = Tact(N) + Lzsk
+# Trem(N) = Tret(N) + Iret
+# Iret = Dsgn + Dprp + TTLsig (+retire-safety)
+#
+#                 |3|   |4|      |5|  |6|      |7|   |8|
+#                  |     |        |    |        |     |
+#   Key N          |<-------Lzsk------>|<-Iret->|<--->|
+#                  |     |        |    |        |     |
+#   Key N+1        |     |<-Ipub->|<-->|<---Lzsk---- - -
+#                  |     |        |    |        |     |
+#   Key N         Tact                Tret     Tdea  Trem
+#   Key N+1             Tpub     Trdy Tact
+#
+#                                     Tnow
+#
+# Lzsk:          30d
+# Ipub:          26h
+# Dsgn:          1w
+# Dprp:          1h
+# TTLsig:        1d
+# retire-safety: 2d
+# Iret:          10d1h = 241h
+#
+# Tact(N)   = Tnow - Lzsk = now - 30d
+# Tret(N)   = now
+# Trem(N)   = Tnow + Iret = now + 241h
+# Tpub(N+1) = Tnow - Ipub = now - 26h
+# Tret(N+1) = Tnow + Lzsk = now + 30d
+# Trem(N+1) = Tnow + Lzsk + Iret = now + 30d + 241h
+#           = now + 961h
+TactN="now-30d"
+TretN="now"
+TremN="now+241h"
+TpubN1="now-26h"
+TactN1="now"
+TretN1="now+30d"
+TremN1="now+961h"
+ksktimes="-P ${TactN}  -A ${TactN}  -P sync ${TactN}"
+zsktimes="-P ${TactN}  -A ${TactN}  -I ${TretN}  -D ${TremN}"
+newtimes="-P ${TpubN1} -A ${TactN1} -I ${TretN1} -D ${TremN1}"
+KSK=$($KEYGEN  -a $DEFAULT_ALGORITHM -L 3600 -f KSK $ksktimes $zone 2> keygen.out.$zone.1)
+ZSK1=$($KEYGEN -a $DEFAULT_ALGORITHM -L 3600        $zsktimes $zone 2> keygen.out.$zone.2)
+ZSK2=$($KEYGEN -a $DEFAULT_ALGORITHM -L 3600        $newtimes $zone 2> keygen.out.$zone.3)
+$SETTIME -s -g $O -k $O $TactN  -r $O $TactN  -d $O $TactN "$KSK"  > settime.out.$zone.1 2>&1
+$SETTIME -s -g $H -k $O $TactN  -z $O $TactN               "$ZSK1" > settime.out.$zone.2 2>&1
+$SETTIME -s -g $O -k $R $TpubN1 -z $H $TpubN1              "$ZSK2" > settime.out.$zone.3 2>&1
+# Set key rollover relationship.
+key_successor $ZSK1 $ZSK2
+# Sign zone.
+cat template.db.in "${KSK}.key" "${ZSK1}.key" "${ZSK2}.key" > "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$KSK"  >> "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$ZSK1" >> "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$ZSK2" >> "$infile"
+cp $infile $zonefile
+$SIGNER -S -x -s now-1h -e now+2w -o $zone -O raw -f "${zonefile}.signed" $infile > signer.out.$zone.1 2>&1
+
+# Step 4:
+# After the retire interval has passed the predecessor DNSKEY can be
+# removed from the zone.
+setup step4.zsk-prepub.autosign
+# According to RFC 7583:
+#
+# Tret(N) = Tact(N) + Lzsk
+# Tdea(N) = Tret(N) + Iret
+#
+#                 |3|   |4|      |5|  |6|      |7|   |8|
+#                  |     |        |    |        |     |
+#   Key N          |<-------Lzsk------>|<-Iret->|<--->|
+#                  |     |        |    |        |     |
+#   Key N+1        |     |<-Ipub->|<-->|<---Lzsk---- - -
+#                  |     |        |    |        |     |
+#   Key N         Tact                Tret     Tdea  Trem
+#   Key N+1             Tpub     Trdy Tact
+#
+#                                                    Tnow
+#
+# Lzsk: 30d
+# Ipub: 26h
+# Iret: 241h
+#
+# Tact(N)   = Tnow - Iret - Lzsk
+#           = now - 241h - 30d = now - 241h - 720h
+#           = now - 961h
+# Tret(N)   = Tnow - Iret = now - 241h
+# Trem(N)   = Tnow
+# Tpub(N+1) = Tnow - Iret - Ipub
+#           = now - 241h - 26h
+#           = now - 267h
+# Tact(N+1) = Tnow - Iret = Tret(N)
+# Tret(N+1) = Tnow - Iret + Lzsk
+#           = now - 241h + 30d = now - 241h + 720h
+#           = now + 479h
+# Trem(N+1) = Tnow + Lzsk = now + 30d
+TactN="now-961h"
+TretN="now-241h"
+TremN="now"
+TpubN1="now-267h"
+TactN1="${TretN}"
+TretN1="now+479h"
+TremN1="now+30d"
+ksktimes="-P ${TactN}  -A ${TactN}  -P sync ${TactN}"
+zsktimes="-P ${TactN}  -A ${TactN}  -I ${TretN}  -D ${TremN}"
+newtimes="-P ${TpubN1} -A ${TactN1} -I ${TretN1} -D ${TremN1}"
+KSK=$($KEYGEN  -a $DEFAULT_ALGORITHM -L 3600 -f KSK $ksktimes $zone 2> keygen.out.$zone.1)
+ZSK1=$($KEYGEN -a $DEFAULT_ALGORITHM -L 3600        $zsktimes $zone 2> keygen.out.$zone.2)
+ZSK2=$($KEYGEN -a $DEFAULT_ALGORITHM -L 3600        $newtimes $zone 2> keygen.out.$zone.3)
+$SETTIME -s -g $O -k $O $TactN  -r $O $TactN -d $O $TactN "$KSK"  > settime.out.$zone.1 2>&1
+$SETTIME -s -g $H -k $O $TactN  -z $U $TretN              "$ZSK1" > settime.out.$zone.2 2>&1
+$SETTIME -s -g $O -k $O $TactN1 -z $R $TactN1             "$ZSK2" > settime.out.$zone.3 2>&1
+# Set key rollover relationship.
+key_successor $ZSK1 $ZSK2
+# Sign zone.
+cat template.db.in "${KSK}.key" "${ZSK1}.key" "${ZSK2}.key" > "$infile"
+cp $infile $zonefile
+$SIGNER -PS -x -s now-2w -e now-1mi -o $zone -O raw -f "${zonefile}.signed" $infile > signer.out.$zone.1 2>&1
+
+# Step 5:
+# The predecessor DNSKEY is removed long enough that is has become HIDDEN.
+setup step5.zsk-prepub.autosign
+# Subtract DNSKEY TTL from all the times (1h).
+# Tact(N)   = now - 961h - 1h = now - 962h
+# Tret(N)   = now - 241h - 1h = now - 242h
+# Tdea(N)   = now - 2d - 1h = now - 49h
+# Trem(N)   = now - 1h
+# Tpub(N+1) = now - 267h - 1h = now - 268h
+# Tact(N+1) = Tret(N)
+# Tret(N+1) = now + 479h - 1h = now + 478h
+# Trem(N+1) = now + 30d - 1h = now + 719h
+TactN="now-962h"
+TretN="now-242h"
+TremN="now-1h"
+TdeaN="now-49h"
+TpubN1="now-268h"
+TactN1="${TretN}"
+TretN1="now+478h"
+TremN1="now+719h"
+ksktimes="-P ${TactN}  -A ${TactN}  -P sync ${TactN}"
+zsktimes="-P ${TactN}  -A ${TactN}  -I ${TretN}  -D ${TremN}"
+newtimes="-P ${TpubN1} -A ${TactN1} -I ${TretN1} -D ${TremN1}"
+KSK=$($KEYGEN  -a $DEFAULT_ALGORITHM -L 3600 -f KSK $ksktimes $zone 2> keygen.out.$zone.1)
+ZSK1=$($KEYGEN -a $DEFAULT_ALGORITHM -L 3600        $zsktimes $zone 2> keygen.out.$zone.2)
+ZSK2=$($KEYGEN -a $DEFAULT_ALGORITHM -L 3600        $newtimes $zone 2> keygen.out.$zone.3)
+$SETTIME -s -g $O -k $O $TactN  -r $O $TactN -d $O $TactN "$KSK"  > settime.out.$zone.1 2>&1
+$SETTIME -s -g $H -k $U $TdeaN  -z $H $TdeaN              "$ZSK1" > settime.out.$zone.2 2>&1
+$SETTIME -s -g $O -k $O $TactN1 -z $O $TdeaN              "$ZSK2" > settime.out.$zone.3 2>&1
+# Set key rollover relationship.
+key_successor $ZSK1 $ZSK2
+# Sign zone.
+cat template.db.in "${KSK}.key" "${ZSK1}.key" "${ZSK2}.key" > "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$KSK"  >> "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$ZSK1" >> "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$ZSK2" >> "$infile"
+cp $infile $zonefile
+$SIGNER -S -x -s now-1h -e now+2w -o $zone -O raw -f "${zonefile}.signed" $infile > signer.out.$zone.1 2>&1
+
+# Step 6:
+# The predecessor DNSKEY can be purged.
+setup step6.zsk-prepub.autosign
+# Subtract purge-keys interval from all the times (1h).
+# Tact(N)   = now - 962h - 1h = now - 963h
+# Tret(N)   = now - 242h - 1h = now - 243h
+# Tdea(N)   = now - 49h - 1h = now - 50h
+# Trem(N)   = now - 1h - 1h = now - 2h
+# Tpub(N+1) = now - 268h - 1h = now - 269h
+# Tact(N+1) = Tret(N)
+# Tret(N+1) = now + 478h - 1h = now + 477h
+# Trem(N+1) = now + 719h - 1h = now + 718h
+TactN="now-963h"
+TretN="now-243h"
+TremN="now-2h"
+TdeaN="now-50h"
+TpubN1="now-269h"
+TactN1="${TretN}"
+TretN1="now+477h"
+TremN1="now+718h"
+ksktimes="-P ${TactN}  -A ${TactN}  -P sync ${TactN}"
+zsktimes="-P ${TactN}  -A ${TactN}  -I ${TretN}  -D ${TremN}"
+newtimes="-P ${TpubN1} -A ${TactN1} -I ${TretN1} -D ${TremN1}"
+KSK=$($KEYGEN  -a $DEFAULT_ALGORITHM -L 3600 -f KSK $ksktimes $zone 2> keygen.out.$zone.1)
+ZSK1=$($KEYGEN -a $DEFAULT_ALGORITHM -L 3600        $zsktimes $zone 2> keygen.out.$zone.2)
+ZSK2=$($KEYGEN -a $DEFAULT_ALGORITHM -L 3600        $newtimes $zone 2> keygen.out.$zone.3)
+$SETTIME -s -g $O -k $O $TactN  -r $O $TactN -d $O $TactN "$KSK"  > settime.out.$zone.1 2>&1
+$SETTIME -s -g $H -k $H $TdeaN  -z $H $TdeaN              "$ZSK1" > settime.out.$zone.2 2>&1
+$SETTIME -s -g $O -k $O $TactN1 -z $O $TdeaN              "$ZSK2" > settime.out.$zone.3 2>&1
+# Set key rollover relationship.
+key_successor $ZSK1 $ZSK2
+# Sign zone.
+cat template.db.in "${KSK}.key" "${ZSK1}.key" "${ZSK2}.key" > "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$KSK"  >> "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$ZSK1" >> "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$ZSK2" >> "$infile"
+cp $infile $zonefile
+$SIGNER -S -x -s now-1h -e now+2w -o $zone -O raw -f "${zonefile}.signed" $infile > signer.out.$zone.1 2>&1
+
+#
+# The zones at ksk-doubleksk.autosign represent the various steps of a KSK
+# Double-KSK rollover.
+#
+
+# Step 1:
+# Introduce the first key. This will immediately be active.
+setup step1.ksk-doubleksk.autosign
+TactN="now"
+ksktimes="-P ${TactN} -A ${TactN} -P sync ${TactN}"
+zsktimes="-P ${TactN} -A ${TactN}"
+KSK=$($KEYGEN -a $DEFAULT_ALGORITHM -L 7200 -f KSK $ksktimes $zone 2> keygen.out.$zone.1)
+ZSK=$($KEYGEN -a $DEFAULT_ALGORITHM -L 7200        $zsktimes $zone 2> keygen.out.$zone.2)
+$SETTIME -s -g $O -k $O $TactN -r $O $TactN -d $O $TactN "$KSK" > settime.out.$zone.1 2>&1
+$SETTIME -s -g $O              -k $O $TactN -z $O $TactN "$ZSK" > settime.out.$zone.2 2>&1
+cat template.db.in "${KSK}.key" "${ZSK}.key" > "$infile"
+cp $infile $zonefile
+$SIGNER -S -x -s now-1h -e now+2w -o $zone -O raw -f "${zonefile}.signed" $infile > signer.out.$zone.1 2>&1
+
+# Step 2:
+# It is time to submit the introduce the new KSK.
+setup step2.ksk-doubleksk.autosign
+# According to RFC 7583:
+#
+# Tpub(N+1) <= Tact(N) + Lksk - Dreg - IpubC
+# IpubC = DprpC + TTLkey (+publish-safety)
+#
+#                       |1|       |2|   |3|      |4|
+#                        |         |     |        |
+#       Key N            |<-IpubC->|<--->|<-Dreg->|<-----Lksk--- - -
+#                        |         |     |        |
+#       Key N+1          |         |     |        |
+#                        |         |     |        |
+#       Key N           Tpub      Trdy  Tsbm     Tact
+#       Key N+1
+#
+#               (continued ...)
+#
+#                   |5|       |6|   |7|      |8|      |9|    |10|
+#                    |         |     |        |        |       |
+#       Key N   - - --------------Lksk------->|<-Iret->|<----->|
+#                    |         |     |        |        |       |
+#       Key N+1      |<-IpubC->|<--->|<-Dreg->|<--------Lksk----- - -
+#                    |         |     |        |        |       |
+#       Key N                                Tret     Tdea    Trem
+#       Key N+1     Tpub      Trdy  Tsbm     Tact
+#
+#                   Tnow
+#
+# Lksk:           60d
+# Dreg:           1d
+# DprpC:          1h
+# TTLkey:         2h
+# publish-safety: 1d
+# IpubC:          27h
+#
+# Tact(N) = Tnow - Lksk + Dreg + IpubC = now - 60d + 27h
+#         = now - 1440h + 27h = now - 1413h
+TactN="now-1413h"
+ksktimes="-P ${TactN} -A ${TactN} -P sync ${TactN}"
+zsktimes="-P ${TactN} -A ${TactN}"
+KSK=$($KEYGEN -a $DEFAULT_ALGORITHM -L 7200 -f KSK $ksktimes $zone 2> keygen.out.$zone.1)
+ZSK=$($KEYGEN -a $DEFAULT_ALGORITHM -L 7200        $zsktimes $zone 2> keygen.out.$zone.2)
+$SETTIME -s -g $O -k $O $TactN -r $O $TactN -d $O $TactN "$KSK" > settime.out.$zone.1 2>&1
+$SETTIME -s -g $O -k $O $TactN -z $O $TactN              "$ZSK" > settime.out.$zone.2 2>&1
+cat template.db.in "${KSK}.key" "${ZSK}.key" > "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$KSK" >> "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$ZSK" >> "$infile"
+cp $infile $zonefile
+$SIGNER -S -x -s now-1h -e now+2w -o $zone -O raw -f "${zonefile}.signed" $infile > signer.out.$zone.1 2>&1
+
+# Step 3:
+# It is time to submit the DS.
+setup step3.ksk-doubleksk.autosign
+# According to RFC 7583:
+#
+# Tsbm(N+1) >= Trdy(N+1)
+# Tact(N+1) = Tsbm(N+1) + Dreg
+# Iret = DprpP + TTLds (+retire-safety)
+#
+#                   |5|       |6|   |7|      |8|      |9|    |10|
+#                    |         |     |        |        |       |
+#       Key N   - - --------------Lksk------->|<-Iret->|<----->|
+#                    |         |     |        |        |       |
+#       Key N+1      |<-IpubC->|<--->|<-Dreg->|<--------Lksk----- - -
+#                    |         |     |        |        |       |
+#       Key N                                Tret     Tdea    Trem
+#       Key N+1     Tpub      Trdy  Tsbm     Tact
+#
+#                                   Tnow
+#
+# Lksk:           60d
+# Dreg:           N/A
+# DprpP:          1h
+# TTLds:          1h
+# retire-safety:  2d
+# Iret:           50h
+# DprpC:          1h
+# TTLkey:         2h
+# publish-safety: 1d
+# IpubC:          27h
+#
+# Tact(N)    = Tnow + Lksk = now - 60d = now - 60d
+# Tret(N)    = now
+# Trem(N)    = Tnow + Iret = now + 50h
+# Tpub(N+1)  = Tnow - IpubC = now - 27h
+# Tsbm(N+1)  = now
+# Tact(N+1)  = Tret(N)
+# Tret(N+1)  = Tnow + Lksk = now + 60d
+# Trem(N+1)  = Tnow + Lksk + Iret = now + 60d + 50h
+#            = now + 1440h + 50h = 1490h
+TactN="now-60d"
+TretN="now"
+TremN="now+50h"
+TpubN1="now-27h"
+TsbmN1="now"
+TactN1="${TretN}"
+TretN1="now+60d"
+TremN1="now+1490h"
+ksktimes="-P ${TactN}  -A ${TactN}  -P sync ${TactN}  -I ${TretN}  -D ${TremN}"
+newtimes="-P ${TpubN1} -A ${TactN1} -P sync ${TsbmN1} -I ${TretN1} -D ${TremN1}"
+zsktimes="-P ${TactN}  -A ${TactN}"
+KSK1=$($KEYGEN -a $DEFAULT_ALGORITHM -L 7200 -f KSK $ksktimes $zone 2> keygen.out.$zone.1)
+KSK2=$($KEYGEN -a $DEFAULT_ALGORITHM -L 7200 -f KSK $newtimes $zone 2> keygen.out.$zone.2)
+ZSK=$($KEYGEN  -a $DEFAULT_ALGORITHM -L 7200        $zsktimes $zone 2> keygen.out.$zone.3)
+$SETTIME -s -g $H -k $O $TactN   -r $O $TactN  -d $O $TactN  "$KSK1" > settime.out.$zone.1 2>&1
+$SETTIME -s -g $O -k $R $TpubN1  -r $R $TpubN1 -d $H $TpubN1 "$KSK2" > settime.out.$zone.2 2>&1
+$SETTIME -s -g $O -k $O $TactN   -z $O $TactN                "$ZSK"  > settime.out.$zone.3 2>&1
+# Set key rollover relationship.
+key_successor $KSK1 $KSK2
+# Sign zone.
+cat template.db.in "${KSK1}.key" "${KSK2}.key" "${ZSK}.key" > "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$KSK1" >> "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$KSK2" >> "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$ZSK" >> "$infile"
+cp $infile $zonefile
+$SIGNER -S -x -s now-1h -e now+2w -o $zone -O raw -f "${zonefile}.signed" $infile > signer.out.$zone.1 2>&1
+
+# Step 4:
+# The DS should be swapped now.
+setup step4.ksk-doubleksk.autosign
+# According to RFC 7583:
+#
+# Tret(N)   = Tsbm(N+1)
+# Tdea(N)   = Tret(N) + Iret
+# Tact(N+1) = Tret(N)
+#
+#                   |5|       |6|   |7|      |8|      |9|    |10|
+#                    |         |     |        |        |       |
+#       Key N   - - --------------Lksk------->|<-Iret->|<----->|
+#                    |         |     |        |        |       |
+#       Key N+1      |<-IpubC->|<--->|<-Dreg->|<--------Lksk----- - -
+#                    |         |     |        |        |       |
+#       Key N                                Tret     Tdea    Trem
+#       Key N+1     Tpub      Trdy  Tsbm     Tact
+#
+#                                                             Tnow
+#
+# Lksk: 60d
+# Dreg: N/A
+# Iret: 50h
+#
+# Tact(N)   = Tnow - Lksk - Iret = now - 60d - 50h
+#           = now - 1440h - 50h = now - 1490h
+# Tret(N)   = Tnow - Iret = now - 50h
+# Trem(N)   = Tnow
+# Tpub(N+1) = Tnow - Iret - IpubC = now - 50h - 27h
+#           = now - 77h
+# Tsbm(N+1) = Tnow - Iret = now - 50h
+# Tact(N+1) = Tret(N)
+# Tret(N+1) = Tnow + Lksk - Iret = now + 60d - 50h = now + 1390h
+# Trem(N+1) = Tnow + Lksk = now + 60d
+TactN="now-1490h"
+TretN="now-50h"
+TremN="now"
+TpubN1="now-77h"
+TsbmN1="now-50h"
+TactN1="${TretN}"
+TretN1="now+1390h"
+TremN1="now+60d"
+ksktimes="-P ${TactN}  -A ${TactN} -P sync ${TactN}  -I ${TretN}  -D ${TremN}"
+newtimes="-P ${TpubN1} -A ${TretN} -P sync ${TsbmN1} -I ${TretN1} -D ${TremN1}"
+zsktimes="-P ${TactN}  -A ${TactN}"
+KSK1=$($KEYGEN -a $DEFAULT_ALGORITHM -L 7200 -f KSK $ksktimes $zone 2> keygen.out.$zone.1)
+KSK2=$($KEYGEN -a $DEFAULT_ALGORITHM -L 7200 -f KSK $newtimes $zone 2> keygen.out.$zone.2)
+ZSK=$($KEYGEN  -a $DEFAULT_ALGORITHM -L 7200        $zsktimes $zone 2> keygen.out.$zone.3)
+$SETTIME -s -g $H -k $O $TactN  -r $O $TactN  -d $U $TsbmN1 -D ds $TsbmN1 "$KSK1" > settime.out.$zone.1 2>&1
+$SETTIME -s -g $O -k $O $TsbmN1 -r $O $TsbmN1 -d $R $TsbmN1 -P ds $TsbmN1 "$KSK2" > settime.out.$zone.2 2>&1
+$SETTIME -s -g $O -k $O $TactN  -z $O $TactN                              "$ZSK"  > settime.out.$zone.3 2>&1
+# Set key rollover relationship.
+key_successor $KSK1 $KSK2
+# Sign zone.
+cat template.db.in "${KSK1}.key" "${KSK2}.key" "${ZSK}.key" > "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$KSK1" >> "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$KSK2" >> "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$ZSK" >> "$infile"
+cp $infile $zonefile
+$SIGNER -S -x -s now-1h -e now+2w -o $zone -O raw -f "${zonefile}.signed" $infile > signer.out.$zone.1 2>&1
+
+# Step 5:
+# The predecessor DNSKEY is removed long enough that is has become HIDDEN.
+setup step5.ksk-doubleksk.autosign
+# Subtract DNSKEY TTL from all the times (2h).
+# Tact(N)   = now - 1490h - 2h = now - 1492h
+# Tret(N)   = now - 50h - 2h = now - 52h
+# Trem(N)   = now - 2h
+# Tpub(N+1) = now - 77h - 2h = now - 79h
+# Tsbm(N+1) = now - 50h - 2h = now - 52h
+# Tact(N+1) = Tret(N)
+# Tret(N+1) = now + 1390h - 2h = now + 1388h
+# Trem(N+1) = now + 60d - 2h = now + 1442h
+TactN="now-1492h"
+TretN="now-52h"
+TremN="now-2h"
+TpubN1="now-79h"
+TsbmN1="now-52h"
+TactN1="${TretN}"
+TretN1="now+1388h"
+TremN1="now+1442h"
+ksktimes="-P ${TactN}  -A ${TactN} -P sync ${TactN}  -I ${TretN}  -D ${TremN}"
+newtimes="-P ${TpubN1} -A ${TretN} -P sync ${TsbmN1} -I ${TretN1} -D ${TremN1}"
+zsktimes="-P ${TactN}  -A ${TactN}"
+KSK1=$($KEYGEN -a $DEFAULT_ALGORITHM -L 7200 -f KSK $ksktimes $zone 2> keygen.out.$zone.1)
+KSK2=$($KEYGEN -a $DEFAULT_ALGORITHM -L 7200 -f KSK $newtimes $zone 2> keygen.out.$zone.2)
+ZSK=$($KEYGEN  -a $DEFAULT_ALGORITHM -L 7200        $zsktimes $zone 2> keygen.out.$zone.3)
+$SETTIME -s -g $H -k $U $TretN  -r $U $TretN  -d $H $TretN  "$KSK1" > settime.out.$zone.1 2>&1
+$SETTIME -s -g $O -k $O $TactN1 -r $O $TactN1 -d $O $TactN1 "$KSK2" > settime.out.$zone.2 2>&1
+$SETTIME -s -g $O -k $O $TactN  -z $O $TactN                "$ZSK"  > settime.out.$zone.3 2>&1
+# Set key rollover relationship.
+key_successor $KSK1 $KSK2
+# Sign zone.
+cat template.db.in "${KSK1}.key" "${KSK2}.key" "${ZSK}.key" > "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$KSK1" >> "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$KSK2" >> "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$ZSK" >> "$infile"
+cp $infile $zonefile
+$SIGNER -S -x -s now-1h -e now+2w -o $zone -O raw -f "${zonefile}.signed" $infile > signer.out.$zone.1 2>&1
+
+# Step 6:
+# The predecessor DNSKEY can be purged.
+setup step6.ksk-doubleksk.autosign
+# Subtract purge-keys interval from all the times (1h).
+# Tact(N)   = now - 1492h - 1h = now - 1493h
+# Tret(N)   = now - 52h - 1h = now - 53h
+# Trem(N)   = now - 2h - 1h = now - 3h
+# Tpub(N+1) = now - 79h - 1h = now - 80h
+# Tsbm(N+1) = now - 52h - 1h = now - 53h
+# Tact(N+1) = Tret(N)
+# Tret(N+1) = now + 1388h - 1h = now + 1387h
+# Trem(N+1) = now + 1442h - 1h = now + 1441h
+TactN="now-1493h"
+TretN="now-53h"
+TremN="now-3h"
+TpubN1="now-80h"
+TsbmN1="now-53h"
+TactN1="${TretN}"
+TretN1="now+1387h"
+TremN1="now+1441h"
+ksktimes="-P ${TactN}  -A ${TactN} -P sync ${TactN}  -I ${TretN}  -D ${TremN}"
+newtimes="-P ${TpubN1} -A ${TretN} -P sync ${TsbmN1} -I ${TretN1} -D ${TremN1}"
+zsktimes="-P ${TactN}  -A ${TactN}"
+KSK1=$($KEYGEN -a $DEFAULT_ALGORITHM -L 7200 -f KSK $ksktimes $zone 2> keygen.out.$zone.1)
+KSK2=$($KEYGEN -a $DEFAULT_ALGORITHM -L 7200 -f KSK $newtimes $zone 2> keygen.out.$zone.2)
+ZSK=$($KEYGEN  -a $DEFAULT_ALGORITHM -L 7200        $zsktimes $zone 2> keygen.out.$zone.3)
+$SETTIME -s -g $H -k $H $TretN  -r $H $TretN  -d $H $TretN  "$KSK1" > settime.out.$zone.1 2>&1
+$SETTIME -s -g $O -k $O $TactN1 -r $O $TactN1 -d $O $TactN1 "$KSK2" > settime.out.$zone.2 2>&1
+$SETTIME -s -g $O -k $O $TactN  -z $O $TactN                "$ZSK"  > settime.out.$zone.3 2>&1
+# Set key rollover relationship.
+key_successor $KSK1 $KSK2
+# Sign zone.
+cat template.db.in "${KSK1}.key" "${KSK2}.key" "${ZSK}.key" > "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$KSK1" >> "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$KSK2" >> "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$ZSK" >> "$infile"
+cp $infile $zonefile
+$SIGNER -S -x -s now-1h -e now+2w -o $zone -O raw -f "${zonefile}.signed" $infile > signer.out.$zone.1 2>&1
+
+#
+# The zones at csk-roll.autosign represent the various steps of a CSK rollover
+# (which is essentially a ZSK Pre-Publication / KSK Double-KSK rollover).
+#
+
+# Step 1:
+# Introduce the first key. This will immediately be active.
+setup step1.csk-roll.autosign
+TactN="now"
+csktimes="-P ${TactN} -P sync ${TactN} -A ${TactN}"
+CSK=$($KEYGEN -k csk-roll -l policies/autosign.conf $csktimes $zone 2> keygen.out.$zone.1)
+$SETTIME -s -g $O -k $O $TactN -r $O $TactN -d $O $TactN -z $O $TactN "$CSK" > settime.out.$zone.1 2>&1
+cat template.db.in "${CSK}.key" > "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$CSK" >> "$infile"
+cp $infile $zonefile
+$SIGNER -S -z -x -s now-1h -e now+30d -o $zone -O raw -f "${zonefile}.signed" $infile > signer.out.$zone.1 2>&1
+
+# Step 2:
+# It is time to introduce the new CSK.
+setup step2.csk-roll.autosign
+# According to RFC 7583:
+# KSK: Tpub(N+1) <= Tact(N) + Lksk - IpubC
+# ZSK: Tpub(N+1) <= Tact(N) + Lzsk - Ipub
+# IpubC = DprpC + TTLkey (+publish-safety)
+# Ipub  = IpubC
+# Lcsk = Lksk = Lzsk
+#
+# Lcsk:           6mo (186d, 4464h)
+# Dreg:           N/A
+# DprpC:          1h
+# TTLkey:         1h
+# publish-safety: 1h
+# Ipub:           3h
+#
+# Tact(N) = Tnow - Lcsk + Ipub = now - 186d + 3h
+#         = now - 4464h + 3h = now - 4461h
+TactN="now-4461h"
+csktimes="-P ${TactN} -P sync ${TactN} -A ${TactN}"
+CSK=$($KEYGEN -k csk-roll -l policies/autosign.conf $csktimes $zone 2> keygen.out.$zone.1)
+$SETTIME -s -g $O -k $O $TactN -r $O $TactN -d $O $TactN -z $O $TactN "$CSK" > settime.out.$zone.1 2>&1
+cat template.db.in "${CSK}.key" > "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$CSK" >> "$infile"
+cp $infile $zonefile
+$SIGNER -S -z -x -s now-1h -e now+30d -o $zone -O raw -f "${zonefile}.signed" $infile > signer.out.$zone.1 2>&1
+
+# Step 3:
+# It is time to submit the DS and to roll signatures.
+setup step3.csk-roll.autosign
+# According to RFC 7583:
+#
+# Tsbm(N+1) >= Trdy(N+1)
+# KSK: Tact(N+1) = Tsbm(N+1)
+# ZSK: Tact(N+1) = Tpub(N+1) + Ipub = Tsbm(N+1)
+# KSK: Iret  = DprpP + TTLds (+retire-safety)
+# ZSK: IretZ = Dsgn + Dprp + TTLsig (+retire-safety)
+#
+# Lcsk:           186d
+# Dprp:           1h
+# DprpP:          1h
+# Dreg:           N/A
+# Dsgn:           25d
+# TTLds:          1h
+# TTLsig:         1d
+# retire-safety:  2h
+# Iret:           4h
+# IretZ:          26d3h
+# Ipub:           3h
+#
+# Tact(N)   = Tnow - Lcsk = now - 186d
+# Tret(N)   = now
+# Trem(N)   = Tnow + IretZ = now + 26d3h = now + 627h
+# Tpub(N+1) = Tnow - Ipub = now - 3h
+# Tsbm(N+1) = Tret(N)
+# Tact(N+1) = Tret(N)
+# Tret(N+1) = Tnow + Lcsk = now + 186d = now + 186d
+# Trem(N+1) = Tnow + Lcsk + IretZ = now + 186d + 26d3h =
+#           = now + 5091h
+TactN="now-186d"
+TretN="now"
+TremN="now+627h"
+TpubN1="now-3h"
+TsbmN1="now"
+TactN1="${TretN}"
+TretN1="now+186d"
+TremN1="now+5091h"
+csktimes="-P ${TactN}  -P sync ${TactN}  -A ${TactN}  -I ${TretN}  -D ${TremN}"
+newtimes="-P ${TpubN1} -P sync ${TsbmN1} -A ${TactN1} -I ${TretN1} -D ${TremN1}"
+CSK1=$($KEYGEN -k csk-roll -l policies/autosign.conf $csktimes $zone 2> keygen.out.$zone.1)
+CSK2=$($KEYGEN -k csk-roll -l policies/autosign.conf $newtimes $zone 2> keygen.out.$zone.2)
+$SETTIME -s -g $H -k $O $TactN  -r $O $TactN  -d $O $TactN  -z $O $TactN  "$CSK1" > settime.out.$zone.1 2>&1
+$SETTIME -s -g $O -k $R $TpubN1 -r $R $TpubN1 -d $H $TpubN1 -z $H $TpubN1 "$CSK2" > settime.out.$zone.2 2>&1
+# Set key rollover relationship.
+key_successor $CSK1 $CSK2
+# Sign zone.
+cat template.db.in "${CSK1}.key" "${CSK2}.key" > "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$CSK1" >> "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$CSK2" >> "$infile"
+cp $infile $zonefile
+$SIGNER -S -z -x -s now-1h -e now+30d -o $zone -O raw -f "${zonefile}.signed" $infile > signer.out.$zone.1 2>&1
+
+# Step 4:
+# Some time later all the ZRRSIG records should be from the new CSK, and the
+# DS should be swapped.  The ZRRSIG records are all replaced after IretZ
+# (which is 26d3h).  The DS is swapped after Iret (which is 4h).
+# In other words, the DS is swapped before all zone signatures are replaced.
+setup step4.csk-roll.autosign
+# According to RFC 7583:
+# Trem(N)    = Tret(N) - Iret + IretZ
+# Tnow       = Tsbm(N+1) + Iret
+#
+# Lcsk:   186d
+# Iret:   4h
+# IretZ:  26d3h
+#
+# Tact(N)   = Tnow - Iret - Lcsk = now - 4h - 186d = now - 4468h
+# Tret(N)   = Tnow - Iret = now - 4h = now - 4h
+# Trem(N)   = Tnow - Iret + IretZ = now - 4h + 26d3h
+#           = now + 623h
+# Tpub(N+1) = Tnow - Iret - IpubC = now - 4h - 3h = now - 7h
+# Tsbm(N+1) = Tret(N)
+# Tact(N+1) = Tret(N)
+# Tret(N+1) = Tnow - Iret + Lcsk = now - 4h + 186d = now + 4460h
+# Trem(N+1) = Tnow - Iret + Lcsk + IretZ = now - 4h + 186d + 26d3h
+#	    = now + 5087h
+TactN="now-4468h"
+TretN="now-4h"
+TremN="now+623h"
+TpubN1="now-7h"
+TsbmN1="${TretN}"
+TactN1="${TretN}"
+TretN1="now+4460h"
+TremN1="now+5087h"
+csktimes="-P ${TactN}  -P sync ${TactN}  -A ${TactN}  -I ${TretN}  -D ${TremN}"
+newtimes="-P ${TpubN1} -P sync ${TsbmN1} -A ${TactN1} -I ${TretN1} -D ${TremN1}"
+CSK1=$($KEYGEN -k csk-roll -l policies/autosign.conf $csktimes $zone 2> keygen.out.$zone.1)
+CSK2=$($KEYGEN -k csk-roll -l policies/autosign.conf $newtimes $zone 2> keygen.out.$zone.2)
+$SETTIME -s -g $H -k $O $TactN  -r $O $TactN  -d $U $TsbmN1 -z $U $TsbmN1 -D ds $TsbmN1 "$CSK1" > settime.out.$zone.1 2>&1
+$SETTIME -s -g $O -k $O $TsbmN1 -r $O $TsbmN1 -d $R $TsbmN1 -z $R $TsbmN1 -P ds $TsbmN1 "$CSK2" > settime.out.$zone.2 2>&1
+# Set key rollover relationship.
+key_successor $CSK1 $CSK2
+# Sign zone.
+cat template.db.in "${CSK1}.key" "${CSK2}.key" > "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$CSK1" >> "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$CSK2" >> "$infile"
+cp $infile $zonefile
+$SIGNER -S -z -x -s now-1h -e now+30d -o $zone -O raw -f "${zonefile}.signed" $infile > signer.out.$zone.1 2>&1
+
+# Step 5:
+# After the DS is swapped in step 4, also the KRRSIG records can be removed.
+# At this time these have all become hidden.
+setup step5.csk-roll.autosign
+# Subtract DNSKEY TTL plus zone propagation delay from all the times (2h).
+# Tact(N)   = now - 4468h - 2h = now - 4470h
+# Tret(N)   = now - 4h - 2h = now - 6h
+# Trem(N)   = now + 623h - 2h = now + 621h
+# Tpub(N+1) = now - 7h - 2h = now - 9h
+# Tsbm(N+1) = Tret(N)
+# Tact(N+1) = Tret(N)
+# Tret(N+1) = now + 4460h - 2h = now + 4458h
+# Trem(N+1) = now + 5087h - 2h = now + 5085h
+TactN="now-4470h"
+TretN="now-6h"
+TremN="now+621h"
+TpubN1="now-9h"
+TsbmN1="${TretN}"
+TactN1="${TretN}"
+TretN1="now+4458h"
+TremN1="now+5085h"
+csktimes="-P ${TactN}  -P sync ${TactN}  -A ${TactN}  -I ${TretN}  -D ${TremN}"
+newtimes="-P ${TpubN1} -P sync ${TsbmN1} -A ${TactN1} -I ${TretN1} -D ${TremN1}"
+CSK1=$($KEYGEN -k csk-roll -l policies/autosign.conf $csktimes $zone 2> keygen.out.$zone.1)
+CSK2=$($KEYGEN -k csk-roll -l policies/autosign.conf $newtimes $zone 2> keygen.out.$zone.2)
+$SETTIME -s -g $H -k $O $TactN  -r $U now-2h  -d $H now-2h -z $U $TactN1 "$CSK1" > settime.out.$zone.1 2>&1
+$SETTIME -s -g $O -k $O $TsbmN1 -r $O $TsbmN1 -d $O now-2h -z $R $TactN1 "$CSK2" > settime.out.$zone.2 2>&1
+# Set key rollover relationship.
+key_successor $CSK1 $CSK2
+# Sign zone.
+cat template.db.in "${CSK1}.key" "${CSK2}.key" > "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$CSK1" >> "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$CSK2" >> "$infile"
+cp $infile $zonefile
+$SIGNER -S -z -x -s now-1h -e now+30d -o $zone -O raw -f "${zonefile}.signed" $infile > signer.out.$zone.1 2>&1
+
+# Step 6:
+# After the retire interval has passed the predecessor DNSKEY can be
+# removed from the zone.
+setup step6.csk-roll.autosign
+# According to RFC 7583:
+# Trem(N) = Tret(N) + IretZ
+# Tret(N) = Tact(N) + Lcsk
+#
+# Lcsk:   186d
+# Iret:   4h
+# IretZ:  26d3h
+#
+# Tact(N)   = Tnow - IretZ - Lcsk = now - 627h - 186d
+#           = now - 627h - 4464h = now - 5091h
+# Tret(N)   = Tnow - IretZ = now - 627h
+# Trem(N)   = Tnow
+# Tpub(N+1) = Tnow - IretZ - Ipub = now - 627h - 3h = now - 630h
+# Tsbm(N+1) = Tret(N)
+# Tact(N+1) = Tret(N)
+# Tret(N+1) = Tnow - IretZ + Lcsk = now - 627h + 186d = now + 3837h
+# Trem(N+1) = Tnow + Lcsk = now + 186d
+TactN="now-5091h"
+TretN="now-627h"
+TremN="now"
+TpubN1="now-630h"
+TsbmN1="${TretN}"
+TactN1="${TretN}"
+TretN1="now+3837h"
+TremN1="now+186d"
+csktimes="-P ${TactN}  -P sync ${TactN}  -A ${TactN}  -I ${TretN}  -D ${TremN}"
+newtimes="-P ${TpubN1} -P sync ${TsbmN1} -A ${TactN1} -I ${TretN1} -D ${TremN1}"
+CSK1=$($KEYGEN -k csk-roll -l policies/autosign.conf $csktimes $zone 2> keygen.out.$zone.1)
+CSK2=$($KEYGEN -k csk-roll -l policies/autosign.conf $newtimes $zone 2> keygen.out.$zone.2)
+$SETTIME -s -g $H -k $O $TactN  -r $H $TremN  -d $H $TremN  -z $U $TsbmN1 "$CSK1" > settime.out.$zone.1 2>&1
+$SETTIME -s -g $O -k $O $TsbmN1 -r $O $TsbmN1 -d $O $TremN  -z $R $TsbmN1 "$CSK2" > settime.out.$zone.2 2>&1
+# Set key rollover relationship.
+key_successor $CSK1 $CSK2
+# Sign zone.
+cat template.db.in "${CSK1}.key" "${CSK2}.key" > "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$CSK1" >> "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$CSK2" >> "$infile"
+cp $infile $zonefile
+$SIGNER -S -z -x -s now-1h -e now+30d -o $zone -O raw -f "${zonefile}.signed" $infile > signer.out.$zone.1 2>&1
+
+# Step 7:
+# Some time later the predecessor DNSKEY enters the HIDDEN state.
+setup step7.csk-roll.autosign
+# Subtract DNSKEY TTL plus zone propagation delay from all the times (2h).
+# Tact(N) = now - 5091h - 2h = now - 5093h
+# Tret(N) = now - 627h - 2h  = now - 629h
+# Trem(N) = now - 2h
+# Tpub(N+1) = now - 630h - 2h = now - 632h
+# Tsbm(N+1) = Tret(N)
+# Tact(N+1) = Tret(N)
+# Tret(N+1) = now + 3837h - 2h = now + 3835h
+# Trem(N+1) = now + 186d - 2h = now + 4462h
+TactN="now-5093h"
+TretN="now-629h"
+TremN="now-2h"
+TpubN1="now-632h"
+TsbmN1="${TretN}"
+TactN1="${TretN}"
+TretN1="now+3835h"
+TremN1="now+4462h"
+csktimes="-P ${TactN}  -P sync ${TactN}  -A ${TactN}  -I ${TretN}  -D ${TremN}"
+newtimes="-P ${TpubN1} -P sync ${TsbmN1} -A ${TactN1} -I ${TretN1} -D ${TremN1}"
+CSK1=$($KEYGEN -k csk-roll -l policies/autosign.conf $csktimes $zone 2> keygen.out.$zone.1)
+CSK2=$($KEYGEN -k csk-roll -l policies/autosign.conf $newtimes $zone 2> keygen.out.$zone.2)
+$SETTIME -s -g $H -k $U $TremN  -r $H $TremN  -d $H $TremN  -z $H $TactN1 "$CSK1" > settime.out.$zone.1 2>&1
+$SETTIME -s -g $O -k $O $TsbmN1 -r $O $TsbmN1 -d $O $TactN1 -z $O $TactN1 "$CSK2" > settime.out.$zone.2 2>&1
+# Set key rollover relationship.
+key_successor $CSK1 $CSK2
+# Sign zone.
+cat template.db.in "${CSK1}.key" "${CSK2}.key" > "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$CSK1" >> "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$CSK2" >> "$infile"
+cp $infile $zonefile
+$SIGNER -S -z -x -s now-1h -e now+30d -o $zone -O raw -f "${zonefile}.signed" $infile > signer.out.$zone.1 2>&1
+
+# Step 8:
+# The predecessor DNSKEY can be purged.
+setup step8.csk-roll.autosign
+# Subtract purge-keys interval from all the times (1h).
+# Tact(N) = now - 5093h - 1h = now - 5094h
+# Tret(N) = now - 629h - 1h  = now - 630h
+# Trem(N) = now - 2h - 1h = now - 3h
+# Tpub(N+1) = now - 632h - 1h = now - 633h
+# Tsbm(N+1) = Tret(N)
+# Tact(N+1) = Tret(N)
+# Tret(N+1) = now + 3835h - 1h = now + 3834h
+# Trem(N+1) = now + 4462h - 1h = now + 4461h
+TactN="now-5094h"
+TretN="now-630h"
+TremN="now-3h"
+TpubN1="now-633h"
+TsbmN1="${TretN}"
+TactN1="${TretN}"
+TretN1="now+3834h"
+TremN1="now+4461h"
+csktimes="-P ${TactN}  -P sync ${TactN}  -A ${TactN}  -I ${TretN}  -D ${TremN}"
+newtimes="-P ${TpubN1} -P sync ${TsbmN1} -A ${TactN1} -I ${TretN1} -D ${TremN1}"
+CSK1=$($KEYGEN -k csk-roll -l policies/autosign.conf $csktimes $zone 2> keygen.out.$zone.1)
+CSK2=$($KEYGEN -k csk-roll -l policies/autosign.conf $newtimes $zone 2> keygen.out.$zone.2)
+$SETTIME -s -g $H -k $H $TremN  -r $H $TremN  -d $H $TremN  -z $H $TactN1 "$CSK1" > settime.out.$zone.1 2>&1
+$SETTIME -s -g $O -k $O $TsbmN1 -r $O $TsbmN1 -d $O $TactN1 -z $O $TactN1 "$CSK2" > settime.out.$zone.2 2>&1
+# Set key rollover relationship.
+key_successor $CSK1 $CSK2
+# Sign zone.
+cat template.db.in "${CSK1}.key" "${CSK2}.key" > "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$CSK1" >> "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$CSK2" >> "$infile"
+cp $infile $zonefile
+$SIGNER -S -z -x -s now-1h -e now+30d -o $zone -O raw -f "${zonefile}.signed" $infile > signer.out.$zone.1 2>&1
+
+#
+# The zones at csk-roll2.autosign represent the various steps of a CSK rollover
+# (which is essentially a ZSK Pre-Publication / KSK Double-KSK rollover).
+# This scenario differs from the above one because the zone signatures (ZRRSIG)
+# are replaced with the new key sooner than the DS is swapped.
+#
+
+# Step 1:
+# Introduce the first key. This will immediately be active.
+setup step1.csk-roll2.autosign
+TactN="now"
+csktimes="-P ${TactN} -P sync ${TactN} -A ${TactN}"
+CSK=$($KEYGEN -k csk-roll2 -l policies/autosign.conf $csktimes $zone 2> keygen.out.$zone.1)
+$SETTIME -s -g $O -k $O $TactN -r $O $TactN -d $O $TactN -z $O $TactN "$CSK" > settime.out.$zone.1 2>&1
+cat template.db.in "${CSK}.key" > "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$CSK" >> "$infile"
+cp $infile $zonefile
+$SIGNER -S -z -x -s now-1h -e now+30d -o $zone -O raw -f "${zonefile}.signed" $infile > signer.out.$zone.1 2>&1
+
+# Step 2:
+# It is time to introduce the new CSK.
+setup step2.csk-roll2.autosign
+# According to RFC 7583:
+# KSK: Tpub(N+1) <= Tact(N) + Lksk - IpubC
+# ZSK: Tpub(N+1) <= Tact(N) + Lzsk - Ipub
+# IpubC = DprpC + TTLkey (+publish-safety)
+# Ipub  = IpubC
+# Lcsk = Lksk = Lzsk
+#
+# Lcsk:           6mo (186d, 4464h)
+# Dreg:           N/A
+# DprpC:          1h
+# TTLkey:         1h
+# publish-safety: 1h
+# Ipub:           3h
+#
+# Tact(N)  = Tnow - Lcsk + Ipub = now - 186d + 3h
+#          = now - 4464h + 3h = now - 4461h
+TactN="now-4461h"
+csktimes="-P ${TactN} -P sync ${TactN} -A ${TactN}"
+CSK=$($KEYGEN -k csk-roll2 -l policies/autosign.conf $csktimes $zone 2> keygen.out.$zone.1)
+$SETTIME -s -g $O -k $O $TactN -r $O $TactN -d $O $TactN -z $O $TactN "$CSK" > settime.out.$zone.1 2>&1
+cat template.db.in "${CSK}.key" > "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$CSK" >> "$infile"
+cp $infile $zonefile
+$SIGNER -S -z -x -s now-1h -e now+30d -o $zone -O raw -f "${zonefile}.signed" $infile > signer.out.$zone.1 2>&1
+
+# Step 3:
+# It is time to submit the DS and to roll signatures.
+setup step3.csk-roll2.autosign
+# According to RFC 7583:
+#
+# Tsbm(N+1) >= Trdy(N+1)
+# KSK: Tact(N+1) = Tsbm(N+1)
+# ZSK: Tact(N+1) = Tpub(N+1) + Ipub = Tsbm(N+1)
+# KSK: Iret  = DprpP + TTLds (+retire-safety)
+# ZSK: IretZ = Dsgn + Dprp + TTLsig (+retire-safety)
+#
+# Lcsk:           186d
+# Dprp:           1h
+# DprpP:          1w
+# Dreg:           N/A
+# Dsgn:           12h
+# TTLds:          1h
+# TTLsig:         1d
+# retire-safety:  1h
+# Iret:           170h
+# IretZ:          38h
+# Ipub:           3h
+#
+# Tact(N)   = Tnow - Lcsk = now - 186d
+# Tret(N)   = now
+# Trem(N)   = Tnow + Iret = now + 170h
+# Tpub(N+1) = Tnow - Ipub = now - 3h
+# Tsbm(N+1) = Tret(N)
+# Tact(N+1) = Tret(N)
+# Tret(N+1) = Tnow + Lcsk = now + 186d
+# Trem(N+1) = Tnow + Lcsk + Iret = now + 186d + 170h =
+#           = now + 4464h + 170h = now + 4634h
+TactN="now-186d"
+TretN="now"
+TremN="now+170h"
+TpubN1="now-3h"
+TsbmN1="${TretN}"
+TactN1="${TretN}"
+TretN1="now+186d"
+TremN1="now+4634h"
+csktimes="-P ${TactN}  -P sync ${TactN}  -A ${TactN}  -I ${TretN}  -D ${TremN}"
+newtimes="-P ${TpubN1} -P sync ${TsbmN1} -A ${TactN1} -I ${TretN1} -D ${TremN1}"
+CSK1=$($KEYGEN -k csk-roll2 -l policies/autosign.conf $csktimes $zone 2> keygen.out.$zone.1)
+CSK2=$($KEYGEN -k csk-roll2 -l policies/autosign.conf $newtimes $zone 2> keygen.out.$zone.2)
+$SETTIME -s -g $H -k $O $TactN  -r $O $TactN  -d $O $TactN  -z $O $TactN  "$CSK1" > settime.out.$zone.1 2>&1
+$SETTIME -s -g $O -k $R $TpubN1 -r $R $TpubN1 -d $H $TpubN1 -z $H $TpubN1 "$CSK2" > settime.out.$zone.2 2>&1
+# Set key rollover relationship.
+key_successor $CSK1 $CSK2
+# Sign zone.
+cat template.db.in "${CSK1}.key" "${CSK2}.key" > "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$CSK1" >> "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$CSK2" >> "$infile"
+cp $infile $zonefile
+$SIGNER -S -z -x -s now-1h -e now+30d -o $zone -O raw -f "${zonefile}.signed" $infile > signer.out.$zone.1 2>&1
+
+# Step 4:
+# Some time later all the ZRRSIG records should be from the new CSK, and the
+# DS should be swapped.  The ZRRSIG records are all replaced after IretZ (38h).
+# The DS is swapped after Dreg + Iret (1w3h). In other words, the zone
+# signatures are replaced before the DS is swapped.
+setup step4.csk-roll2.autosign
+# According to RFC 7583:
+# Trem(N)    = Tret(N) + IretZ
+#
+# Lcsk:   186d
+# Dreg:   N/A
+# Iret:   170h
+# IretZ:  38h
+#
+# Tact(N)    = Tnow - IretZ = Lcsk = now - 38h - 186d
+#            = now - 38h - 4464h = now - 4502h
+# Tret(N)    = Tnow - IretZ = now - 38h
+# Trem(N)    = Tnow - IretZ + Iret = now - 38h + 170h = now + 132h
+# Tpub(N+1)  = Tnow - IretZ - IpubC = now - 38h - 3h = now - 41h
+# Tsbm(N+1)  = Tret(N)
+# Tact(N+1)  = Tret(N)
+# Tret(N+1)  = Tnow - IretZ + Lcsk = now - 38h + 186d
+#            = now + 4426h
+# Trem(N+1)  = Tnow - IretZ + Lcsk + Iret
+#            = now + 4426h + 3h = now + 4429h
+TactN="now-4502h"
+TretN="now-38h"
+TremN="now+132h"
+TpubN1="now-41h"
+TsbmN1="${TretN}"
+TactN1="${TretN}"
+TretN1="now+4426h"
+TremN1="now+4429h"
+csktimes="-P ${TactN}  -P sync ${TactN}  -A ${TactN}  -I ${TretN}  -D ${TremN}"
+newtimes="-P ${TpubN1} -P sync ${TsbmN1} -A ${TactN1} -I ${TretN1} -D ${TremN1}"
+CSK1=$($KEYGEN -k csk-roll2 -l policies/autosign.conf $csktimes $zone 2> keygen.out.$zone.1)
+CSK2=$($KEYGEN -k csk-roll2 -l policies/autosign.conf $newtimes $zone 2> keygen.out.$zone.2)
+$SETTIME -s -g $H -k $O $TactN  -r $O $TactN  -z $U $TretN  -d $U $TsbmN1 -D ds $TsbmN1 "$CSK1" > settime.out.$zone.1 2>&1
+$SETTIME -s -g $O -k $O $TsbmN1 -r $O $TsbmN1 -z $R $TactN1 -d $R $TsbmN1 -P ds $TsbmN1 "$CSK2" > settime.out.$zone.2 2>&1
+# Set key rollover relationship.
+key_successor $CSK1 $CSK2
+# Sign zone.
+cat template.db.in "${CSK1}.key" "${CSK2}.key" > "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$CSK1" >> "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$CSK2" >> "$infile"
+cp $infile $zonefile
+$SIGNER -S -z -x -s now-1h -e now+30d -o $zone -O raw -f "${zonefile}.signed" $infile > signer.out.$zone.1 2>&1
+
+# Step 5:
+# Some time later the DS can be swapped and the old DNSKEY can be removed from
+# the zone.
+setup step5.csk-roll2.autosign
+# Subtract Iret (170h) - IretZ (38h) = 132h.
+#
+# Tact(N)   = now - 4502h - 132h = now - 4634h
+# Tret(N)   = now - 38h - 132h = now - 170h
+# Trem(N)   = now + 132h - 132h = now
+# Tpub(N+1) = now - 41h - 132h = now - 173h
+# Tsbm(N+1) = Tret(N)
+# Tact(N+1) = Tret(N)
+# Tret(N+1) = now + 4426h - 132h = now + 4294h
+# Trem(N+1) = now + 4492h - 132h = now + 4360h
+TactN="now-4634h"
+TretN="now-170h"
+TremN="now"
+TpubN1="now-173h"
+TsbmN1="${TretN}"
+TactN1="${TretN}"
+TretN1="now+4294h"
+TremN1="now+4360h"
+csktimes="-P ${TactN}  -P sync ${TactN}  -A ${TactN}  -I ${TretN}  -D ${TremN}"
+newtimes="-P ${TpubN1} -P sync ${TsbmN1} -A ${TactN1} -I ${TretN1} -D ${TremN1}"
+CSK1=$($KEYGEN -k csk-roll2 -l policies/autosign.conf $csktimes $zone 2> keygen.out.$zone.1)
+CSK2=$($KEYGEN -k csk-roll2 -l policies/autosign.conf $newtimes $zone 2> keygen.out.$zone.2)
+$SETTIME -s -g $H -k $O $TactN  -r $O $TactN  -z $H now-133h -d $U $TsbmN1 -D ds $TsbmN1 "$CSK1" > settime.out.$zone.1 2>&1
+$SETTIME -s -g $O -k $O $TsbmN1 -r $O $TsbmN1 -z $O now-133h -d $R $TsbmN1 -P ds $TsbmN1 "$CSK2" > settime.out.$zone.2 2>&1
+# Set key rollover relationship.
+key_successor $CSK1 $CSK2
+# Sign zone.
+cat template.db.in "${CSK1}.key" "${CSK2}.key" > "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$CSK1" >> "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$CSK2" >> "$infile"
+cp $infile $zonefile
+$SIGNER -S -z -x -s now-1h -e now+30d -o $zone -O raw -f "${zonefile}.signed" $infile > signer.out.$zone.1 2>&1
+
+# Step 6:
+# Some time later the predecessor DNSKEY enters the HIDDEN state.
+setup step6.csk-roll2.autosign
+# Subtract DNSKEY TTL plus zone propagation delay (2h).
+#
+# Tact(N)   = now - 4634h - 2h = now - 4636h
+# Tret(N)   = now - 170h - 2h = now - 172h
+# Trem(N)   = now - 2h
+# Tpub(N+1) = now - 173h - 2h = now - 175h
+# Tsbm(N+1) = Tret(N)
+# Tact(N+1) = Tret(N)
+# Tret(N+1) = now + 4294h - 2h = now + 4292h
+# Trem(N+1) = now + 4360h - 2h = now + 4358h
+TactN="now-4636h"
+TretN="now-172h"
+TremN="now-2h"
+TpubN1="now-175h"
+TsbmN1="${TretN}"
+TactN1="${TretN}"
+TretN1="now+4292h"
+TremN1="now+4358h"
+csktimes="-P ${TactN}  -P sync ${TactN}  -A ${TactN}  -I ${TretN}  -D ${TremN}"
+newtimes="-P ${TpubN1} -P sync ${TsbmN1} -A ${TactN1} -I ${TretN1} -D ${TremN1}"
+CSK1=$($KEYGEN -k csk-roll2 -l policies/autosign.conf $csktimes $zone 2> keygen.out.$zone.1)
+CSK2=$($KEYGEN -k csk-roll2 -l policies/autosign.conf $newtimes $zone 2> keygen.out.$zone.2)
+$SETTIME -s -g $H -k $U $TremN  -r $U $TremN  -d $H $TremN -z $H now-135h "$CSK1" > settime.out.$zone.1 2>&1
+$SETTIME -s -g $O -k $O $TsbmN1 -r $O $TsbmN1 -d $O $TremN -z $O now-135h "$CSK2" > settime.out.$zone.2 2>&1
+# Set key rollover relationship.
+key_successor $CSK1 $CSK2
+# Sign zone.
+cat template.db.in "${CSK1}.key" "${CSK2}.key" > "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$CSK1" >> "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$CSK2" >> "$infile"
+cp $infile $zonefile
+$SIGNER -S -z -x -s now-1h -e now+30d -o $zone -O raw -f "${zonefile}.signed" $infile > signer.out.$zone.1 2>&1
+
+# Step 7:
+# The predecessor DNSKEY can be purged, but purge-keys is disabled.
+setup step7.csk-roll2.autosign
+# Subtract 90 days (default, 2160h) from all the times.
+# Tact(N)   = now - 4636h - 2160h = now - 6796h
+# Tret(N)   = now - 172h - 2160h = now - 2332h
+# Trem(N)   = now - 2h - 2160h = now - 2162h
+# Tpub(N+1) = now - 175h - 2160h = now - 2335h
+# Tsbm(N+1) = Tret(N)
+# Tact(N+1) = Tret(N)
+# Tret(N+1) = now + 4294h - 2160h = now + 2134h
+# Trem(N+1) = now + 4360h - 2160h = now + 2200h
+TactN="now-6796h"
+TretN="now-2332h"
+TremN="now-2162h"
+TpubN1="now-2335h"
+TsbmN1="${TretN}"
+TactN1="${TretN}"
+TretN1="now+2134h"
+TremN1="now+2200h"
+csktimes="-P ${TactN}  -P sync ${TactN}  -A ${TactN}  -I ${TretN}  -D ${TremN}"
+newtimes="-P ${TpubN1} -P sync ${TsbmN1} -A ${TactN1} -I ${TretN1} -D ${TremN1}"
+CSK1=$($KEYGEN -k csk-roll2 -l policies/autosign.conf $csktimes $zone 2> keygen.out.$zone.1)
+CSK2=$($KEYGEN -k csk-roll2 -l policies/autosign.conf $newtimes $zone 2> keygen.out.$zone.2)
+$SETTIME -s -g $H -k $U $TremN  -r $U $TremN  -d $H $TremN -z $H now-135h "$CSK1" > settime.out.$zone.1 2>&1
+$SETTIME -s -g $O -k $O $TsbmN1 -r $O $TsbmN1 -d $O $TremN -z $O now-135h "$CSK2" > settime.out.$zone.2 2>&1
+# Set key rollover relationship.
+key_successor $CSK1 $CSK2
+# Sign zone.
+cat template.db.in "${CSK1}.key" "${CSK2}.key" > "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$CSK1" >> "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$CSK2" >> "$infile"
+cp $infile $zonefile
+$SIGNER -S -z -x -s now-1h -e now+30d -o $zone -O raw -f "${zonefile}.signed" $infile > signer.out.$zone.1 2>&1
+
+# Test #2375, the "three is a crowd" bug, where a new key is introduced but the
+# previous rollover has not finished yet. In other words, we have a key KEY2
+# that is the successor of key KEY1, and we introduce a new key KEY3 that is
+# the successor of key KEY2:
+#
+#     KEY1 < KEY2 < KEY3.
+#
+# The expected behavior is that all three keys remain in the zone, and not
+# the bug behavior where KEY2 is removed and immediately replaced with KEY3.
+#
+# Set up a zone that has a KSK (KEY1) and have the successor key (KEY2)
+# published as well.
+setup three-is-a-crowd.kasp
+# These times are the same as step3.ksk-doubleksk.autosign.
+TactN="now-60d"
+TretN="now"
+TremN="now+50h"
+TpubN1="now-27h"
+TsbmN1="now"
+TactN1="${TretN}"
+TretN1="now+60d"
+TremN1="now+1490h"
+ksktimes="-P ${TactN}  -A ${TactN}  -P sync ${TactN}  -I ${TretN}  -D ${TremN}"
+newtimes="-P ${TpubN1} -A ${TactN1} -P sync ${TsbmN1} -I ${TretN1} -D ${TremN1}"
+zsktimes="-P ${TactN}  -A ${TactN}"
+KSK1=$($KEYGEN -a $DEFAULT_ALGORITHM -L 7200 -f KSK $ksktimes $zone 2> keygen.out.$zone.1)
+KSK2=$($KEYGEN -a $DEFAULT_ALGORITHM -L 7200 -f KSK $newtimes $zone 2> keygen.out.$zone.2)
+ZSK=$($KEYGEN  -a $DEFAULT_ALGORITHM -L 7200        $zsktimes $zone 2> keygen.out.$zone.3)
+$SETTIME -s -g $H -k $O $TactN   -r $O $TactN  -d $O $TactN  "$KSK1" > settime.out.$zone.1 2>&1
+$SETTIME -s -g $O -k $R $TpubN1  -r $R $TpubN1 -d $H $TpubN1 "$KSK2" > settime.out.$zone.2 2>&1
+$SETTIME -s -g $O -k $O $TactN   -z $O $TactN                "$ZSK"  > settime.out.$zone.3 2>&1
+# Set key rollover relationship.
+key_successor $KSK1 $KSK2
+# Sign zone.
+cat template.db.in "${KSK1}.key" "${KSK2}.key" "${ZSK}.key" > "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$KSK1" >> "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$KSK2" >> "$infile"
+private_type_record $zone $DEFAULT_ALGORITHM_NUMBER "$ZSK" >> "$infile"
+cp $infile $zonefile
+$SIGNER -S -x -s now-1h -e now+2w -o $zone -O raw -f "${zonefile}.signed" $infile > signer.out.$zone.1 2>&1