DTV services are getting widespread use, requiring service providers to have
effective methods for remotely configuring and managing DTV set-top boxes (STBs).
Solutions for such remote management are becoming standards-based. In this paper,
we first propose a secure frequency billing service in DTV broadcasting. The billing
system can provide users a more convenient way for payment. For charging in traditional
television, many billings are half-yearly done. However, in the proposed protocol, users
can watch TV in their free time and take single billing method. As a result, users can
choose the most suitable billing methods according to their requirements. Moreover, the
proposed protocol is more efficient than other previously proposed protocols by eliminating
exponentiation operations which are time-consuming computations. Finally, our protocol
not only provides better way for DTV charging but also prevents two common serious
problems in DTV broadcasting such as smart card cloning and replay attacks.
Journal of Information Hiding and Multimedia Signal Processing