相对于端到端的通信，安全群组通信更为复杂，从基本算法、系统及安全协议到安全实现都还存在需解决的问题。

Secure group communication is more complicated than peer to peer communication, and poses a number of challenges ranging from basic algorithms, systems and secure protocols to secure implementation.

youdao

第四，开展了安全通信的研究。提供了安全调用服务的机制，保证端到端的安全。

Finally, Research on safety communication, we propose a safety-invoking mechanism, ensuring end-to-end security.

youdao

第四，开展了安全通信的研究。提供了安全调用服务的机制，保证端到端的安全。

Finally, Research on safety communication, we propose a safety-invoking mechanism, ensuring end-to-end security.

youdao