pub fn step3(
data: Step2,
response: ServerDhParams,
) -> Result<(SetClientDhParams, Step3), Error>Expand description
Process ServerDhParams into a reusable DhParamsForRetry + send the
first set_client_DH_params request.
retry_id should be 0 on the first call, or auth_key_aux_hash (returned
by finish as FinishResult::Retry) on subsequent attempts.