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<h2><a class="anchor" aria-hidden="true" id="authentication"></a><a href="#authentication" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Authentication</h2>
<p>You can use a custom authentication mechanism by providing the implementation in the form of two plugins.</p>
<ul>
<li>Client authentication plugin</li>
<li>Proxy/Broker authentication plugin</li>
</ul>
<h3><a class="anchor" aria-hidden="true" id="client-authentication-plugin"></a><a href="#client-authentication-plugin" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Client authentication plugin</h3>
<p>For the client library, you need to implement <code>org.apache.pulsar.client.api.Authentication</code>. By entering the command below, you can pass this class when you create a Pulsar client.</p>
<pre><code class="hljs css language-java">PulsarClient client = PulsarClient.builder()
    .serviceUrl(<span class="hljs-string">"pulsar://localhost:6650"</span>)
    .authentication(<span class="hljs-keyword">new</span> MyAuthentication())
    .build();
</code></pre>
<p>You can implement 2 interfaces on the client side:</p>
<ul>
<li><a href="http://pulsar.apache.org/api/client/2.10.0-SNAPSHOT/org/apache/pulsar/client/api/Authentication.html"><code>Authentication</code></a></li>
<li><a href="http://pulsar.apache.org/api/client/2.10.0-SNAPSHOT/org/apache/pulsar/client/api/AuthenticationDataProvider.html"><code>AuthenticationDataProvider</code></a></li>
</ul>
<p>This in turn requires you to provide the client credentials in the form of <code>org.apache.pulsar.client.api.AuthenticationDataProvider</code> and also leaves the chance to return different kinds of authentication token for different types of connection or by passing a certificate chain to use for TLS.</p>
<p>You can find the following examples for different client authentication plugins:</p>
<ul>
<li><a href="https://github.com/apache/pulsar/blob/master/pulsar-client/src/main/java/org/apache/pulsar/client/impl/auth/AuthenticationTls.java">Mutual TLS</a></li>
<li><a href="https://github.com/apache/pulsar/blob/master/pulsar-client-auth-athenz/src/main/java/org/apache/pulsar/client/impl/auth/AuthenticationAthenz.java">Athenz</a></li>
<li><a href="https://github.com/apache/pulsar/blob/master/pulsar-client-auth-sasl/src/main/java/org/apache/pulsar/client/impl/auth/AuthenticationSasl.java">Kerberos</a></li>
<li><a href="https://github.com/apache/pulsar/blob/master/pulsar-client/src/main/java/org/apache/pulsar/client/impl/auth/AuthenticationToken.java">JSON Web Token (JWT)</a></li>
<li><a href="https://github.com/apache/pulsar/blob/master/pulsar-client/src/main/java/org/apache/pulsar/client/impl/auth/oauth2/AuthenticationOAuth2.java">OAuth 2.0</a></li>
<li><a href="https://github.com/apache/pulsar/blob/master/pulsar-client/src/main/java/org/apache/pulsar/client/impl/auth/AuthenticationBasic.java">Basic auth</a></li>
</ul>
<h3><a class="anchor" aria-hidden="true" id="proxybroker-authentication-plugin"></a><a href="#proxybroker-authentication-plugin" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Proxy/Broker authentication plugin</h3>
<p>On the proxy/broker side, you need to configure the corresponding plugin to validate the credentials that the client sends. The proxy and broker can support multiple authentication providers at the same time.</p>
<p>In <code>conf/broker.conf</code>, you can choose to specify a list of valid providers:</p>
<pre><code class="hljs css language-properties"><span class="hljs-comment"># Authentication provider name list, which is comma separated list of class names</span>
<span class="hljs-attr">authenticationProviders</span>=<span class="hljs-string"></span>
</code></pre>
<p>For the implementation of the <code>org.apache.pulsar.broker.authentication.AuthenticationProvider</code> interface, refer to <a href="https://github.com/apache/pulsar/blob/master/pulsar-broker-common/src/main/java/org/apache/pulsar/broker/authentication/AuthenticationProvider.java">here</a>.</p>
<p>You can find the following examples for different broker authentication plugins:</p>
<ul>
<li><a href="https://github.com/apache/pulsar/blob/master/pulsar-broker-common/src/main/java/org/apache/pulsar/broker/authentication/AuthenticationProviderTls.java">Mutual TLS</a></li>
<li><a href="https://github.com/apache/pulsar/blob/master/pulsar-broker-auth-athenz/src/main/java/org/apache/pulsar/broker/authentication/AuthenticationProviderAthenz.java">Athenz</a></li>
<li><a href="https://github.com/apache/pulsar/blob/master/pulsar-broker-auth-sasl/src/main/java/org/apache/pulsar/broker/authentication/AuthenticationProviderSasl.java">Kerberos</a></li>
<li><a href="https://github.com/apache/pulsar/blob/master/pulsar-broker-common/src/main/java/org/apache/pulsar/broker/authentication/AuthenticationProviderToken.java">JSON Web Token (JWT)</a></li>
<li><a href="https://github.com/apache/pulsar/blob/master/pulsar-broker-common/src/main/java/org/apache/pulsar/broker/authentication/AuthenticationProviderToken.java">Basic auth</a></li>
</ul>
<h2><a class="anchor" aria-hidden="true" id="authorization"></a><a href="#authorization" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Authorization</h2>
<p>Authorization is the operation that checks whether a particular &quot;role&quot; or &quot;principal&quot; has permission to perform a certain operation.</p>
<p>By default, you can use the embedded authorization provider provided by Pulsar. You can also configure a different authorization provider through a plugin. Note that although the Authentication plugin is designed for use in both the proxy and broker, the Authorization plugin is designed only for use on the broker.</p>
<h3><a class="anchor" aria-hidden="true" id="broker-authorization-plugin"></a><a href="#broker-authorization-plugin" aria-hidden="true" class="hash-link"><svg class="hash-link-icon" aria-hidden="true" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>Broker authorization plugin</h3>
<p>To provide a custom authorization provider, you need to implement the <code>org.apache.pulsar.broker.authorization.AuthorizationProvider</code> interface, put this class in the Pulsar broker classpath and configure the class in <code>conf/broker.conf</code>:</p>
<pre><code class="hljs css language-properties"><span class="hljs-comment"># Authorization provider fully qualified class-name</span>
<span class="hljs-attr">authorizationProvider</span>=<span class="hljs-string">org.apache.pulsar.broker.authorization.PulsarAuthorizationProvider</span>
</code></pre>
<p>For the implementation of the <code>org.apache.pulsar.broker.authorization.AuthorizationProvider</code> interface, refer to <a href="https://github.com/apache/pulsar/blob/master/pulsar-broker-common/src/main/java/org/apache/pulsar/broker/authorization/AuthorizationProvider.java">here</a>.</p>
</span></div></article></div><div class="docs-prevnext"><a class="docs-prev button" href="/docs/en/security-encryption"><span class="arrow-prev">← </span><span>End-to-End Encryption</span></a><a class="docs-next button" href="/docs/en/security-bouncy-castle"><span>Bouncy Castle Providers</span><span class="arrow-next"> →</span></a></div></div></div><nav class="onPageNav"><ul class="toc-headings"><li><a href="#authentication">Authentication</a><ul class="toc-headings"><li><a href="#client-authentication-plugin">Client authentication plugin</a></li><li><a href="#proxybroker-authentication-plugin">Proxy/Broker authentication plugin</a></li></ul></li><li><a href="#authorization">Authorization</a><ul class="toc-headings"><li><a href="#broker-authorization-plugin">Broker authorization plugin</a></li></ul></li></ul></nav></div><footer class="nav-footer" id="footer"><section class="copyright">Copyright © 2022 The Apache Software Foundation. All Rights Reserved. Apache, Apache Pulsar and the Apache feather logo are trademarks of The Apache Software Foundation.</section><span><script>
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