IPTV (Internet Protocol Television) user security terminal

• Main Authors: GUO BAOAN, TANG LING, YE SONG, DING YAO, WU YUAN, YU ZHIQIANG, ZHANG BIAO, WANG JIEBIN, LU YU
• Format: Patent
• Language: Chinese; English
• Published: 24.11.2010
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; PICTORIAL COMMUNICATION, e.g. TELEVISION; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

The invention relates to an IPTV (Internet Protocol Television) user security terminal which comprises an identity authentication module, an authorization information decryption module, an authorization storage and management module, a key storage and management module, a key decryption module, a content descrambling module, an uplink information encryption module, a decoding module and a user input module, wherein the identity authentication module comprises an elliptic curve cryptosystem signature module and an elliptic curve cryptosystem verification module. The terminal ensures that only authorized users can watch programs based on good interactivity of the IPTV by means of identity authentication, authorization management, secret key encryption protection, content encryption protection and the like. The user security terminal has favorable expansibility, can satisfy live broadcast, VOD broadcast and other services of the IPTV, and can effectively protect the security of the digital media content of the I