ws-security-common/src/main/resources/wss4j-signature-config.xml

<?xml version="1.0" encoding="UTF-8"?>
<XMLTooling xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ds="http://www.w3.org/2000/09/xmldsig#" xmlns:ds11="http://www.w3.org/2009/xmldsig11#" xmlns="http://www.opensaml.org/xmltooling-config">
    
    <ObjectProviders>

        <!-- X509Certificate -->
        <ObjectProvider qualifiedName="ds:X509Certificate">
            <BuilderClass className="org.opensaml.xmlsec.signature.impl.X509CertificateBuilder"/>
            <MarshallingClass className="org.opensaml.core.xml.schema.impl.XSBase64BinaryMarshaller"/>
            <UnmarshallingClass className="org.apache.wss4j.common.saml.WSS4JXSBase64BinaryUnmarshaller"/>
        </ObjectProvider>

    </ObjectProviders>
    
</XMLTooling>