基于GBA的TD-MBMS网络安全体系研究

Research of TD-MBMS system security architecture based on generic bootstrapping architecture

手机电视是TD-SCDMA系统的关键业务,3GPP R6版本中引入多媒体广播组播业务(MBMS)。安全在TD-MBMS多媒体组播业务中至关重要,介绍了通用自举架构(GBA),分析了基于通用自举架构的TD-MBMS业务安全体系架构和密钥管理体系,并讨论了该安全体系的优势和不足,结合组播特点给出了改进建议。

Mobile TV is a key service in TD-SCDMA system, and the multimedia broadcast muhicast service （MBMS） is introduced to 3GPP R6. Security is very important for multimedia muhicast service of MBMS over TD-SCDMA system. In this paper, generic bootstrapping architecture （GBA） is introduced, TD-MBMS service security architecture and key management system over GBA for 3GPP system are analyzed. Advantages and deficiency of the security system are discussed, and the amelioration proposition for multicast service is given.