Source: policy.xml 

<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:AlgorithmSuite>
                        <wsp:Policy>
                            <sp:Basic256Rsa15/>
                        </wsp:Policy>
                    </sp:AlgorithmSuite>
                    <sp:Layout>
                        <wsp:Policy>
                            <sp:Strict/>
                        </wsp:Policy>
                    </sp:Layout>
                </wsp:Policy>
            </sp:AsymmetricBinding>
            <sp:Wss10 xmlns:sp="http://schemas.xmlsoap.org/ws/2005/07/securitypolicy">
                <wsp:Policy>
                    <sp:MustSupportRefKeyIdentifier/>
                    <sp:MustSupportRefEmbeddedToken/>
                    <sp:MustSupportRefIssuerSerial/>
                </wsp:Policy>
            </sp:Wss10>
            <sp:SignedParts xmlns:sp="http://schemas.xmlsoap.org/ws/2005/07/securitypolicy">
                <sp:Body/>
                <sp:Header Namespace="http://www.w3.org/2005/08/addressing"/>
            </sp:SignedParts>
        </wsp:All>
    </wsp:ExactlyOne>
</wsp:Policy>