量子密码的一个重要特征是让通讯双方能快速的探知是否有第三方对象企图获得密钥的授权。
An important and unique feature of quantum cryptography is the ability of the two communicating parties to quickly detect the presence of any third party trying to gain access to the key.
二战期间，萨默·雷石东曾在美军情报部门效力，负责破译日军的通讯密码，这意味着他必须要学习日语和日本文化。
During the Second World War, Redstone was part of an intelligence unit responsible for breaking the communications codes of the Japanese, which meant learning the language and culture.
在我手机通讯录里，但我手机有密码。这你是知道的。
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