Shannon showed that noise sets a limit on the rate at which information can pass along communication channels while remaining error-free.

香农指出，噪声限制了信息在保持无差错的情况下沿通信信道传递的速度。

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When eve intercepts these tweaked photons, she can gather information on them while keeping the error rate she introduces just below a tolerable level.

当eve截获了这些已经有改变的光子，她可以在收集信息的同时将引起误差保持在可容忍的范围内。

youdao

Valid feature can reflect important information of pattern, and decrease computation and error recognition rate.

有效的特征既能反映模式的重要信息，又可减少计算量和误识率。

youdao

When Eve intercepts these tweaked photons, she can gather information on them while keeping the error rate she introduces just below a tolerable level.

ECONOMIST: Secure cryptography is only as safe as its weakest link