The information eavesdropping techniques of spectral phase-coded OCDMA system were investigated.

针对光谱相位编码光码分多址系统（OCDMA）的信息侦听技术进行了研究。

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It provides anonymous connections which prevent both eavesdropping and traffic analysis from revealing the identifying information of the correspondent and the content of the communication.

该技术所建立的匿名连接可以有效的防止监听和通信量分析攻击，不暴露通信者的身份信息以及通信的内容。

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But after considering the legal and civil liberties aspects, and determining that the story could be written without jeopardizing intelligence operations, the paper ran the story, Keller said, emphasizing that information about many NSA eavesdropping operations is public record.

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In that case, Scalia made the hairsplitting distinction between technology that picks up information that is out in public view and technology that reveals information that otherwise could only be obtained with eavesdropping equipment inside the house.

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