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#!/bin/bash
# Check if the certificate is already present in the system keychain
security find-certificate -Z -p -c "dlv-cert" /Library/Keychains/System.keychain > /dev/null 2>&1
EXIT_CODE=$?
if [ $EXIT_CODE -eq 0 ]; then
# Certificate has already been generated and installed
exit 0
fi
CERT="dlv-cert"
# Create the certificate template
cat <<EOF >$CERT.tmpl
[ req ]
default_bits = 2048 # RSA key size
encrypt_key = no # Protect private key
default_md = sha512 # MD to use
prompt = no # Prompt for DN
distinguished_name = codesign_dn # DN template
[ codesign_dn ]
commonName = "dlv-cert"
[ codesign_reqext ]
keyUsage = critical,digitalSignature
extendedKeyUsage = critical,codeSigning
EOF
# Generate a new certificate
openssl req -new -newkey rsa:2048 -x509 -days 3650 -nodes -config $CERT.tmpl -extensions codesign_reqext -batch -out $CERT.cer -keyout $CERT.key > /dev/null 2>&1
EXIT_CODE=$?
if [ $EXIT_CODE -ne 0 ]; then
# Something went wrong when generating the certificate
exit 1
fi
# Install the certificate in the system keychain
sudo security add-trusted-cert -d -r trustRoot -k /Library/Keychains/System.keychain $CERT.cer > /dev/null 2>&1
EXIT_CODE=$?
if [ $EXIT_CODE -ne 0 ]; then
# Something went wrong when installing the certificate
exit 1
fi
# Install the key for the certificate in the system keychain
sudo security import $CERT.key -A -k /Library/Keychains/System.keychain > /dev/null 2>&1
EXIT_CODE=$?
if [ $EXIT_CODE -ne 0 ]; then
# Something went wrong when installing the key
exit 1
fi
# Kill task_for_pid access control daemon
sudo pkill -f /usr/libexec/taskgated > /dev/null 2>&1
# Remove generated files
rm $CERT.tmpl $CERT.cer $CERT.key > /dev/null 2>&1
# Exit indicating the certificate is now generated and installed
exit 0
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