ied certificate and key to sign workload certificates. This task demonstrates an example to plug certificate and key into the Istio CA.</p><h2 id="before-you-begin">Before you begin</h2><ul><li>Set up Istio by following the instructions in the <a href="/v0.7/docs/setup/kubernetes/quick-start.html">quick start</a>. Note that authentication should be enabled at step 5 in the <a href="/v0.7/docs/setup/kubernetes/quick-start.html#installation-steps">installation steps</a>.</li></ul><h2 id="plugging-in-the-exist