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Eavesdropping on secret communications is aboutto get harder 现在想窃听秘密联系会越来越难 CRYPTOGRAPHY is an arms race between Alice and Bob, and Eve. 艾莉斯，鲍伯和伊芙之间正在进行一场密码术的军备竞赛。 These are the names cryptographers give to two people who are trying to communicateprivily, and to a third who is trying to intercept and decrypt their conversation. 这里所说的艾莉斯，鲍伯和伊芙是译解密码者的代号，前两位在努力进行秘密联系，而第三位伊芙则试图阻止他们的联系，并且在尽力破解他们的联系密码，希望能够知道联系的具体内容。 Currently, Alice and Bob are aheadjust. 目前，艾莉斯和鲍伯只是暂时领先， But Eve is catching up. 但是伊芙正在迎头赶上。 Alice and Bob are therefore lookingfor a whole new way of keeping things secret. 因此，艾莉斯和鲍伯正在寻找另一种全新的联系方式，以保证他们联系的秘密性。 And they may soon have one, courtesy of quantum mechanics. 借助于量子力学，他们可能很快就会找到。 At the moment cryptography concentrates on making the decrypting part as hard as possible. | 
