tls.createSecureContext(options)
Creates a credentials object; the options object may contain the following fields:
pfx : A string or Buffer holding the PFX or PKCS12 encoded private key, certificate, and CA certificates.
key: A string or Buffer containing the private key of the server in PEM format. To support multiple keys using different algorithms, an array can be provided. It can either be a plain array of keys or an array of objects in the format {pem: key, passphrase: passphrase}. (Re