=true href=/v1.9/docs/tasks/security/authentication/authn-policy/>Authentication Policy</a></p><p class=desc>Shows you how to use Istio authentication policy to setup mutual TLS and basic end-user authentication.</p></div><div class=entry><p class=link><a data-skipendnotes=true href=/v1.9/docs/concepts/security/>Security</a></p><p class=desc>Describes Istio's authorization and authentication functionality.</p></div><div class=entry><p class=link><a data-skipendnotes=true href=/v1.9/docs/tasks/security/autho