HTTP Post request with certificate authentication


I would like to use the HTTP node to request some data but the host server requires a private key and an X509 certificate.

How could this be achieved please?

The host server provides this documentation:

In the event it is not possible to use the HTTP node my second choice is to use the Execute Command node but I have hit the following error: curl: (58) could not load PEM client certificate, OpenSSL error error:140AB18E:SSL routines:SSL_CTX_use_certificate:ca md too weak, (no key found, wrong pass phrase, or wrong file format?). Any ideas on this please?

Thank You!