openssl genpkey -algorithm RSA -out private.key -aes256
openssl req -new -key private.key -out request.csr
openssl pkcs12 -export -in certificate.crt -inkey private.key -out certificate.pfx
openssl pkcs12 -info -in certificate.pfx
Generar Req si no generas la llave privada
openssl req -new -newkey rsa:1024 -nodes -out own_getacert_com.csr -keyout own_getacert_com.key -subj "/C=US/ST=Washington/L=Seattle/O=getaCert/CN=*.getacert.com"