Create self-signed certs using OpenSSL

makecert.sh

#!/bin/bash
set -o nounset;

#################################################################################
# Script to generate a private key and pfx.
# Requires the variable $FileName to be set.
# Remember to `chmod +x makecert.sh` in order to run.
# Example: FileName=myfile ./makecert.sh
#          This will generate myfile.key, myfile.csr, myfile.crt, and myfile.pfx
#################################################################################

echo "Generating private key."; echo;
openssl genrsa -out $FileName.key 2048;
echo; echo "Completed generating private key."; echo "Generating csr."; echo;
openssl req -new -days 365 -key $FileName.key -out $FileName.csr;
echo; echo "Completed generating csr"; echo "Generating crt."; echo;
openssl x509 -in $FileName.csr -out $FileName.crt -req -signkey $FileName.key -days 365;
echo; echo "Completed generating crt."; echo "Generating pfx."; echo;
openssl pkcs12 -export -out $FileName.pfx -inkey $FileName.key -in $FileName.crt;
echo; echo "Completed generating pfx."; echo;
echo "All done!";