diff --git a/pgpainless-wot/src/main/java/org/pgpainless/wot/CertificateAuthority.java b/pgpainless-wot/src/main/java/org/pgpainless/wot/CertificateAuthority.java
deleted file mode 100644
index 84f796bb..00000000
--- a/pgpainless-wot/src/main/java/org/pgpainless/wot/CertificateAuthority.java
+++ /dev/null
@@ -1,21 +0,0 @@
-// SPDX-FileCopyrightText: 2022 Paul Schaub <vanitasvitae@fsfe.org>
-//
-// SPDX-License-Identifier: Apache-2.0
-
-package org.pgpainless.wot;
-
-import org.bouncycastle.openpgp.PGPPublicKeyRing;
-
-public interface CertificateAuthority {
-
-    /**
-     * Returns <pre>true</pre>, if the given binding (certificate and user-id) is correct.
-     * Correct means, that the binding is trustworthy.
-     *
-     * @param certificate OpenPGP certificate
-     * @param userId user-id
-     * @return binding correctness
-     */
-    boolean isAuthorized(PGPPublicKeyRing certificate, String userId);
-
-}
diff --git a/pgpainless-wot/src/main/java/org/pgpainless/wot/WebOfTrust.java b/pgpainless-wot/src/main/java/org/pgpainless/wot/WebOfTrust.java
index 971a8b28..64254d3d 100644
--- a/pgpainless-wot/src/main/java/org/pgpainless/wot/WebOfTrust.java
+++ b/pgpainless-wot/src/main/java/org/pgpainless/wot/WebOfTrust.java
@@ -55,7 +55,7 @@ import pgp.certificate_store.exception.BadDataException;
  *
  * @see <a href="https://sequoia-pgp.gitlab.io/sequoia-wot/">OpenPGP Web of Trust</a>
  */
-public class WebOfTrust implements CertificateAuthority {
+public class WebOfTrust {
 
     private static final Logger LOGGER = LoggerFactory.getLogger(WebOfTrust.class);
 
@@ -382,12 +382,6 @@ public class WebOfTrust implements CertificateAuthority {
         return value;
     }
 
-    @Override
-    public boolean isAuthorized(PGPPublicKeyRing certificate, String userId) {
-        // TODO: Heiko! Implement!
-        return false;
-    }
-
     @Override
     public String toString() {
         return network.toString();