Somehow successful response but errors in validation

.rhel-prod/fda-authentication-service/install_cert

@@ -32,3 +32,7 @@ sudo keytool -noprompt -importkeystore -deststorepass "${KEY_STORE_PASS}" -destk
 sudo keytool -noprompt -importkeystore -deststorepass "${KEY_STORE_PASS}" -destkeypass "${KEY_STORE_PASS}" \
   -destkeystore "${KEY_STORE_LOCATION}" -srckeystore "${TMP_SAML_LOCATION}" -srcstoretype PKCS12 \
   -srcstorepass "${KEY_STORE_PASS}" -alias 1 -destalias saml
+
+# TRUST LET'S ENCRYPT
+sudo keytool -noprompt -import -alias letsencrypt -keystore "${KEY_STORE_LOCATION}" \
+  -file "${CERT_LOCATION}/chain.pem"
\ No newline at end of file

fda-authentication-service/rest-service/src/main/java/at/tuwien/config/SamlConfig.java

@@ -172,7 +172,7 @@ public class SamlConfig extends WebSecurityConfigurerAdapter {
         ExtendedMetadataDelegate extendedMetadataDelegate = new ExtendedMetadataDelegate(metadataProvider(),
                 extendedMetadata());
         extendedMetadataDelegate.setMetadataTrustCheck(true);
-        extendedMetadataDelegate.setMetadataRequireSignature(false);
+        extendedMetadataDelegate.setMetadataRequireSignature(true);
         return extendedMetadataDelegate;
     }