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cosu_device_csr.sh
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cosu_device_csr.sh
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####################################################################################
# Copyright (c) 2019 - Present Crestron Electronics, Inc.
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
####################################################################################
########################################################################################
view_device_csr(){
# Allows you to view all the fields in the certificate
openssl req -text -noout -verify -in $device_folder/csr.pem
}
########################################################################################
write_device_csr_config(){
# This method writes out the ssl.cnf used for generating a csr
# Not a lot special here other than copying the names
cat > $device_folder/ssl.cnf << EOL
[ ca ]
default_ca = CA_default
[CA_default]
default_md = $sslsha
[ req ]
# Options for the req tool (man req).
default_bits = 2048
distinguished_name = req_distinguished_name
string_mask = utf8only
prompt = no
[ req_distinguished_name ]
# See https://en.wikipedia.org/wiki/Certificate_signing_request
C = $ssldef_country
ST = $ssldef_state
L = $ssldef_locality
O = $ssldef_org
#OU = $ssldef_org_unit
CN = $ssldef_device_hostname
#emailAddress = $ssldef_email
EOL
}
##########################################################################################
gen_device_csr(){
# assumes the password to use for the private key has already been entered
# generates the csr and private key
setup_device
write_device_csr_config
#generate the key
openssl genpkey -algorithm $keyalgorithm -pass pass:$device_password $keygenparams -out $device_folder/key.pem
#echo Now Creating CSR
openssl req -passin pass:$device_password -config $device_folder/ssl.cnf -key $device_folder/key.pem -new -$sslsha -out $device_folder/csr.pem
}
##########################################################################################
interactive_gen_device_csr(){
# allows you to type in the password for this particular private key
while true
do
read -sp "Please enter a password for the device key: " device_password
echo ""
read -sp "Please verify the device key password: " device_password_verify
echo ""
if [ "$device_password" == "$device_password_verify" ] ; then
break
else
echo "Passwords don't match. Please try again."
fi
done
gen_device_csr
device_password=""
device_password_verify=""
read -p "Would you like to view the csr [y/n]: " choice
case $choice in
y) view_device_csr ;;
n) ;;
*) echo -e "${RED}Error...${STD}" && sleep 2
esac
}