此外，本方案在不排除网内处理和节点被动加入的情况下，支持数据源认证。

In addition, the proposed scheme also supports source authentication without precluding in-network processing and passive participation.

youdao

而组播数据源认证又是整个安全组播通信中的重点和难点问题，也是真正实现安全组播通信的基础和前提。

Source authentication is the key and difficulty problem through the multicast. And it also become the basis and precondition for realizing the security multicast.

youdao

该文按照协议分类分别概述了几个具有代表性的不可否认数据源认证协议，并对每一个协议的优缺点和存在问题进行了讨论。

In this paper, several typical data origin authentication protocols with non-repudiation are summarized according to the taxonomy of data origin authentication with non-repudiation.

youdao