This is the same as the gateway on server side acting in role assigned to the WS-Security header architecture but with the XS40 substituted for the Web Services Gateway.

So, it is very significative to find some new substituted energy, develope the study of renewable energy for protecting the security of energy strategy and reducing the environmental pollution.

The digital signatures have many applications in a lot of field for it cannot be substituted by other techniques in information security, including authentication, data integrity, and non-repudiation.