“CPAut” Uma arquitetura de controle de acesso para o CRSPE/INPE - MCT

Abstract

Certain documents are classified as confidential or secret documents, like for example, images of satellites. Used in an appropriate way, those images can bring several benefits to the society: environmental monitoring, maps elaboration, urban development, transport planning [Vijayalakshmi, 2004], among others. However, even with those benefits, these same images can threaten significantly national security e personal privacy [Vijayalakshmi, 2004]. This paper has come from the necessity that CRSPE/INPE – MCT has in using images of satellites and the verification that such images should have their access controlled in a way that only legitimate users could have access to these images. The basic idea is to do that any user that is connected to the net has to be identified and authorized to have access to the images of satellites. The implementation consists of a mechanism based on the idea of Captive Portals to identify the user and also of an authentication/authorization mechanism that allows to define differentiated accesses to the images based on the user’s profile. As results, the proposed solution allows only legitimate users have access to the satellite’s images in function of your profile.