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77 lines
3.3 KiB
Bash
Executable File
77 lines
3.3 KiB
Bash
Executable File
#!/bin/bash
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#
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# Copyright (c) 2024, The OpenThread Authors.
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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# 3. Neither the name of the copyright holder nor the
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# names of its contributors may be used to endorse or promote products
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# derived from this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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#
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# Script to generate a TCAT Device X509v3 certificate.
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if [ $# -ne 2 ]; then
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echo "Usage: ./create-cert-tcat-device.sh <NameOfDevice> <NameOfCA>"
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exit 1
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fi
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set -eu
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# days certificate is valid
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SECONDS1=$(date +%s) # time now
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SECONDS2=$(date --date="2999-12-31 23:59:59Z" +%s) # target end time
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((VALIDITY = "(${SECONDS2}-${SECONDS1})/(24*3600)"))
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echo "create-cert-tcat-device.sh - Using validity param -days ${VALIDITY}"
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NAME="${1}"
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CANAME="${2}"
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CACERTFILE="ca/${CANAME}_cert.pem"
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((ID = ${NAME:0-1}))
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((SERIAL = 13800 + ID))
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echo " TCAT device name : ${NAME}"
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echo " TCAT device CA name: ${CANAME}"
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echo " Numeric serial ID : ${ID}"
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# create csr for device.
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# conform to 802.1AR guidelines, using only CN + serialNumber when
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# manufacturer is already present as CA. CN is not even mandatory, but just good practice.
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openssl req -new -key "keys/${NAME}_key.pem" -out "${NAME}.csr" -subj \
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"/CN=TCAT Example ${NAME}/serialNumber=4723-9833-000${ID}"
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# sign csr by CA
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mkdir -p "output/${NAME}"
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openssl x509 -set_serial "${SERIAL}" -CAform PEM -CA "${CACERTFILE}" \
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-CAkey "ca/${CANAME}_key.pem" -extfile "ext/${NAME}.ext" -extensions \
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"${NAME}" -req -in "${NAME}.csr" -out "output/${NAME}/device_cert.pem" \
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-days "${VALIDITY}" -sha256
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# delete temp files
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rm -f "${NAME}.csr"
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# copy supporting files, for immediate use by TCAT Commissioner as 'cert_path'.
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# Normally a Commissioner must not use Device certs, but for testing purposes this
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# option is provided here.
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cp "output/${NAME}/device_cert.pem" "output/${NAME}/commissioner_cert.pem"
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cp "${CACERTFILE}" "output/${NAME}/ca_cert.pem"
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cp "keys/${NAME}_key.pem" "output/${NAME}/commissioner_key.pem"
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cp "keys/${NAME}_key.pem" "output/${NAME}/device_key.pem"
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