论文部分内容阅读
提出了一种树链混合的组播源认证改进方案.利用认证树构造数据报之间独立的数据报组、TESLA链的公开延迟时间间隔确保数据报组的摘要值的真实性,并经过对TESLA链进一步改进实现零延迟的实时源认证.本方案与其他同类方案相比较,不仅在计算量、通信和存储开销方面均较小,而且能够适用于较复杂的网络环境,可应对报文突发丢失.推导验证表明:即便在丢包概率较高的通信场景中,源认证也几乎不受影响,明显地提高了组播通信中源认证的可靠性.
An improved scheme of tree source hybrid multicast source authentication is proposed.Using the authentication tree to construct a separate datagram group between datagrams, the public delay interval of TESLA chain ensures the authenticity of the digest value of the datagram group, TESLA chain to further improve real-time zero-latency certification source.This program compared with other similar programs, not only in terms of computing power, communication and storage overhead are small, and can be applied to more complex network environment, The results show that source authentication is almost unaffected even in the communication scenario with high packet loss probability, which obviously improves the reliability of source authentication in multicast communication.