Function self_signed_server_auth_mirror_cert 

pub fn self_signed_server_auth_mirror_cert(
    source_cert: &X509Ref,
    ca_cert: &X509,
    ca_privkey: &PKey<Private>,
) -> Result<(X509, PKey<Private>), Box<dyn Error + Send + Sync>>

Generate a mirrored server certificate based on a source certificate.

The generated certificate mirrors identity data from source_cert (subject and SAN, when present), but is signed by the provided ca_cert + ca_privkey.