从非法信号攻击卫星转发器的原理入手，探讨了有线电视前端卫星信号安全接收的措施，对保证有线电视的安全播出具有重要的参考意义。

This paper discusses the ways how to receive satellite signal safely from the principle of illegal signal attacking satellite repeater. This has important significance for CATV safety transmission.

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您需要为发送和目标应用程序添加几行代码，以放入和接收安全属性。

You need to add a few lines of code to the sender and the target application to place and receive security attributes.

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STS检验接收的安全令牌。

The STS validates the received security token.

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