Once a simple CMC request, a PKCS #10 request, has been generated, do the following to send it to the CA:
Run the AtoB tool to convert the base-64-encoded PKCS #10 request to binary.
Use the HttpClient utility to send the request.
By default, the URI of the servlet that processes a simple CMC request is /ca/ee/ca/profileSubmitCMCSimple; this must be specified in the HttpClient configuration.