Current key exchange techniques will not stand up to a quantum computer.

当前的密钥交换技术经不起量子计算机的考验。

Diffie-Hellman key exchange is one method for establishing a shared key.

Diffie-Hellman 密钥交换是建立共享密钥的一种方法。

So, now you know all the “key” parts of modern cryptography: symmetric encryption, key exchange and public-key cryptography.

所以，现在您了解了现代密码学的所有“关键”部分：对称加密、密钥交换和公钥密码学。