There’s also asymmetric encryption, where there are two different keys, most often one that’s public and another that’s private.

还有非对称加密，其中有两个不同的密钥，通常一个是公开的，另一个是私有的。

The most popular asymmetric encryption technique used today is RSA, named after its inventors: Rivest, Shamir and Adleman.

当今最流行的非对称加密技术是 RSA，以其发明者的名字命名：Rivest、Shamir 和 Adleman。