Generates a Self-Signed certificate and private key

opensslSelfSignCert.sh

#!/usr/bin/env sh
# Generates a Self-Signed Certificate and private key.
# Optionally, add a password as an argument.

# Argument 1 can be a Password
if [ "$1" == "" ]
then
  # No Password
  echo 'Creating Key and Cert without a Password...'
  openssl genrsa -out privkey.pem 4096
  openssl req -new -x509 -days 1826 -key privkey.pem -out cert.pem -subj "//C=US/ST=-/L=-/O=Test/OU=Test/CN=IT/emailAddress=info@example.com"
else
  # With a Password
  echo 'Creating Key and Cert with Password...'
  openssl genrsa -des3 -passout pass:$1 -out privkey.pem 4096
  openssl req -new -x509 -days 1826 -key privkey.pem -out cert.pem -passin pass:$1 -subj "//C=US/ST=-/L=-/O=Test/OU=Test/CN=IT/emailAddress=test@test.com"
fi