Firstly, some key technologies correlated with security are discussed in detail, such as data interception, data encryption, key management, etc.

首先详细讨论了与安全技术相关的一系列关键技术，包括数据拦截技术、数据加密技术、密钥管理技术等。

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Sir Paul Kennedy, the data interception watchdog, said it was "essential" for the law to be strengthened, although he believed the proposed new powers would be used sparingly.

BBC: Computer keyboard and mouse

Mr Campbell alleged that national security agencies were using several major US corporations to aid their interception of data capabilities.

BBC: US spy system under attack

Furthermore, the United States has yet to identify a non-radar technology capable of providing the necessary data to permit reliable interception of the B-2.

CENTERFORSECURITYPOLICY: Roundtable Discussion On The B-2 Bomber