Get Identity from rustls_pki_types' CertificateDer and PrivateKeyDer

[Gurgel100]

Hi,
I have a module which gets passed a rustls_pki_types::CertificateDer and rustls_pki_types::PrivateKeyDer which have to be used as client certificate to make HTTP requests. Therefore I have to create a reqwest::tls::Identity to pass it to the ClientBuilder unfortunately the Identity doesn't support to be created by raw DER formatted data. So the only way of getting an Identity at the moment is to convert the certificate and private key to pem and then read it again with Identity::from_pem. I know that this is not a really good idea because it could leak the private key.

Is there another/better way of doing it?

I guess the best would be to have a function like Identity::from_der(certs: &[u8], private_key: &[u8]).