APPARATUS, METHOD AND SYSTEM FOR PROVIDING BROADCASTING SERVICES IN DIGITAL BROADCASTING SYSTEM WITH SINGLE FREQUENCY NETWORK

摘要

PROBLEM TO BE SOLVED: To provide an apparatus, method and system for providing broadcasting services that can distinguish a network of a shadow region and a network a non-shadow region in a digital broadcasting system. SOLUTION: The system is the digital broadcasting system for providing the broadcasting services through a single frequency network, and the system includes: a broadcasting providing server for encrypting broadcasting service data, generating private and public keys into which predetermined encryption keys are divided to decrypt the encrypted broadcasting service data, setting at least one broadcasting transmitter for transmitting the private key and/or the public key and providing the encryption keys along with the encrypted broadcasting service data; and broadcasting transmitters for transmitting the encrypted broadcasting service data received from the broadcasting providing server and the private key through the single frequency network, wherein at least one of the broadcasting transmitters further transmits the public key. COPYRIGHT: (C)2007,JPO&INPIT