Digital broadcasting receiver and a data processing method

A digital broadcasting receiver comprising:

• a receiver configured to receive a mobile/handheld (MH) broadcasting signal including mobile service data and main service data;
• a generator configured to generate a Reed-Solomon (RS) frame from the received MH broadcasting signal;
• an extractor configured to extract control data from the RS frame by extracting IP datagram from the RS frame and extracting the control data from the extracted IP datagram, the control data including charge adjustment information required to use a service provided by at least one service provider, the service being encrypted;
• a decision unit configured to determine whether the service is available by comparing the extracted charge adjustment information with balance information written in a smart card;
• a controller configured to control the encrypted service using the control data such that the encrypted service is decrypted if the service is available;
• and
• a storage unit configured to map the extracted charge adjustment information with a corresponding service provider and storing the mapped charge adjustment information,
• wherein:
• the controller is further configured to:
• request recharge of an amount written in the smart card;
• calculate charge adjustment information allocated to each service provider based on the stored charge adjustment information;
• and
• cause transmission of the calculated charge adjustment information per service provider to a billing server by encrypting the calculated charge adjustment information;
• the charge adjustment information includes information identifying that the service is a pay service, information identifying a type of a charge adjustment method, and amount information of the service;
• the control data further includes an encrypted control message (ECM) and an entitlement management message (EMM);
• the ECM includes an encrypted control word, charge adjustment information, and signature information;
• and
• the EMM includes an encrypted authentication key and signature information.