Sharing Conditional Access Modules through the home network

In this article we present a system for sharing a conditional access module among different visualization devices. Current pay-TV systems require having conditional access modules and smart cards replicated at every visualization device willing to access pay-TV contents. In this article, we show how a home gateway, capable of securely distribute decryption keys, home visualization devices, an inexpensive descrambler, and a home network, enable a flexible solution to access pay-TV.