To study the security performance of the Internet of multimedia things on the privacy protection of user identity, behavior trajectory, and preference under the new information technology industry wave, in this study, aiming at the problems of the sharing of Internet of things perception data and the exposure of users’ privacy information, the Anonymous Batch Authentication Scheme (ABAH) for privacy protection is designed. Hash-based Message Authentication Code is used to cancel the list-checking process and analyze its security performance. Compared with the methods of elliptic curve digital signature algorithm, Bayes least-square method, identity-based bulk verification, anonymous batch authentication and key protocol, conditional privacy authentication scheme, and expert message authentication protocol, the transmission delay, packet loss rate, and computation cost are studied without considering the undo list and during the undo check. The results show that with the increase of information size, the transmission delay and packet loss rate also increase, and the transmission delay of ABAH increases by about 15%, while the correlation between speed and transmission delay is small. In the case of the same amount of validation information, ABAH has the highest validation efficiency, and it still has an efficient validation effect in the case of invalid information. The message packet loss rate for ABAH is always 0 when the undo check validation overhead is considered. It can be found that ABAH can avoid the communication overhead and privacy leakage caused by the revocation list, ensure the integrity of batch verification information, meet the security performance of the vehicular ad hoc network under the Internet of Things, and protect the privacy of users from being disclosed.

中文翻译：

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多媒体物联网安全分析

为研究新信息技术产业浪潮下多媒体物联网对用户身份、行为轨迹、偏好等隐私保护的安全性能，本研究针对物联网感知数据共享和针对用户隐私信息的暴露，设计了用于隐私保护的匿名批量认证方案（ABAH）。Hash-based Message Authentication Code 用于取消列表检查过程并分析其安全性能。与椭圆曲线数字签名算法、贝叶斯最小二乘法、基于身份的批量验证、匿名批量认证和密钥协议、条件隐私认证方案、专家消息认证协议等方法相比，传输时延、丢包率、在不考虑撤消列表和撤消检查期间研究计算成本和计算成本。结果表明，随着信息量的增加，传输时延和丢包率也随之增加，ABAH的传输时延增加了15%左右，而速度与传输时延的相关性较小。在验证信息量相同的情况下，ABAH的验证效率最高，在信息无效的情况下依然具有高效的验证效果。考虑到撤消检查验证开销时，ABAH 的消息丢包率始终为 0。可以发现，ABAH可以避免撤销列表带来的通信开销和隐私泄露，保证批量验证信息的完整性，满足车载安全性能。特设物联网下的网络，保护用户隐私不被泄露。