基于参数动态自适应的实时视频数据完整性保护方法

Real Time Video Integrity Protection Method Based on Parameter Dynamic Adaption

基于IP多媒体子系统(IP Multimedia Subsystem,IMS)的视频通信技术可以实现多点之间的远距离实时视频通信。视频通信业务在公共互联网传输过程中可能面临来自恶意用户的非法攻击,其中,视频篡改是最具威胁的攻击手段之一。现有技术中针对视频篡改攻击多采用基于哈希运算的消息认证码(Hash-based Message Authentication Code,HMAC)的视频数据完整性保护方法,但HMAC计算对硬件资源和处理性能的需求较高,并且持续高强度的HMAC计算会带来较大的性能和散热压力,最终影响视频通信业务的实时性、流畅性。为解决上述问题,提出了一种对实时视频数据进行完整性保护的方法,通过保护参数自适应调整优化机制,有效提升了对视频数据进行完整性保护的安全性能和处理性能。

The video communication technology based on IMS(IP Multimedia Subsystem) realizes the long-distance real-time video communication among multiple points. Video communication services may face illegal attacks from malicious users in the process of public Internet transmissions. Video tampering is one of the most threatening attacks. In the prior art, the video data integrity protection method based on HMAC(Hash-based Message Authentication Code) is mostly used for multi-meter video tampering attacks.However, HAMC computing has high requirements for hardware resources and processing performance, and continuous high-intensity HMAC computing will bring greater pressure on performance and heat dissipation,which will finally affect the real-time and fluency of video communication services. To address the above problems, this paper proposes a method for integrity protection of real-time video data, which effectively improves the security performance and processing performance of integrity protection of video data through the adaptive adjustment and optimization mechanism of protection parameters.