针对星球机器人分布计算系统容错的可靠组播通信，提出了一种基于向量时间的原子组组播协议。
An atomic multicast protocol based on vector time is proposed for reliable group communication of distributed computing sys - tem of planetary rover.
随着网络规模的增大，组播组多对多的通信，都对可靠组播提出了新的需求和挑战。
With the increasements of the network and communication of many-to-many, it puts new demands and challenges for reliable multicast.
安全组播通信的主要挑战之一是源认证，而其关键是为组播通信提供可靠的安全机制。
One of the main challenges of securing multicast communication is source authentication. It is therefore critical to provide sound security mechanisms for multicast communication.
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