samples/secpolicy/scenario2/services.xml

<service name="sec_echo">
    <parameter name="ServiceClass" locked="xsd:false">sec_echo</parameter>

   <description>
        This is a testing service , to test the system is working or not
   </description>
    <module ref="rampart"/>

    <operation name="echoString">
            <parameter name="wsamapping">http://example.com/ws/2004/09/policy/Test/EchoRequest</parameter>
    </operation>

    <wsp:Policy xmlns:wsp="http://schemas.xmlsoap.org/ws/2004/09/policy">
        <wsp:ExactlyOne>
            <wsp:All>
                <sp:AsymmetricBinding xmlns:sp="http://schemas.xmlsoap.org/ws/2005/07/securitypolicy">
                    <wsp:Policy>
                        <sp:InitiatorToken>
                            <wsp:Policy>
                                <sp:X509Token sp:IncludeToken="http://schemas.xmlsoap.org/ws/2005/07/securitypolicy/IncludeToken/AlwaysToRecipient">
                                    <wsp:Policy>
                                        <sp:WssX509V3Token10/>
                                    </wsp:Policy>
                                </sp:X509Token>
                            </wsp:Policy>
                        </sp:InitiatorToken>
                        <sp:RecipientToken>
                            <wsp:Policy>
                                <sp:X509Token sp:IncludeToken="http://schemas.xmlsoap.org/ws/2005/07/securitypolicy/IncludeToken/Never">
                                    <wsp:Policy>
                                        <sp:WssX509V3Token10/>
                                    </wsp:Policy>
                                </sp:X509Token>
                            </wsp:Policy>
                        </sp:RecipientToken>
                        <sp:Layout>
                            <wsp:Policy>
                                <sp:Strict/>
                            </wsp:Policy>
                        </sp:Layout>
                    </wsp:Policy>
                </sp:AsymmetricBinding>
                <sp:SignedSupportingTokens xmlns:sp="http://schemas.xmlsoap.org/ws/2005/07/securitypolicy">
                <wsp:Policy>
                    <sp:UsernameToken sp:IncludeToken="http://schemas.xmlsoap.org/ws/2005/07/securitypolicy/IncludeToken/Always"/>
                </wsp:Policy>
                </sp:SignedSupportingTokens>
                <rampc:RampartConfig xmlns:rampc="http://ws.apache.org/rampart/c/policy">
                    <rampc:PasswordType>Digest</rampc:PasswordType>
                    <!--rampc:AuthnModuleName>AXIS2C_HOME/bin/samples/rampart/authn_provider/libauthn.so</rampc:AuthnModuleName-->
                    <rampc:PasswordCallbackClass>AXIS2C_HOME/samples/lib/libpwcb.so</rampc:PasswordCallbackClass>
                </rampc:RampartConfig>
            </wsp:All>
        </wsp:ExactlyOne>
    </wsp:Policy>
</service>