因为这是使用非对象加密技术，而每一端有自己的证书和私有密钥，比起清单5对称加密技术示例，它处理起来更为简单。

Because this is using asymmetric encryption, where each side has its own certificate and private key, it should be somewhat simpler to handle than the Listing 5 symmetric-encryption example.

youdao

置换密码是一种简单的加密技术，采用这项技术将把字母表中的每个字母替换为字母表中的其他字母。

A substitution cypher is a simple encryption technique where every letter of the alphabet is substituted with another letter from the alphabet.

youdao

把这种技术与直接加密技术结合使用，所有的问题就迎刃而解了。

Combine that with straight out encryption and all of your problems are solved.

youdao

So in general, both of these are examples of what we call secret key crypto.

所以通常，这两个都是,加密技术的例子。

哈佛公开课 - 计算机科学课程节选

In Week 2 we'll look at things like cryptography and functions and the tools that by which you begin to assemble solutions to problems; in Week 3 we'll introduce what are generally ; known as algorithms and data structures; mechanisms by which you can solve problems more efficiently, effectively.

第2周,我们学习加密技术及其功能,还会学到一些操作工具,通过这些工具的使用来收集解决问题的办法,第3周,我们将介绍;,算法和数据结构,以及可以更有效地解决问题的机制。

哈佛公开课 - 计算机科学课程节选

But the point is that how is Facebook, how is Amazon possibly going to communicate securely with you or your laptop using cryptology if you both have to know the same secrets.

关键是Facebook是怎么样，亚马逊是怎么样安全地和你或你的计算机,使用加密技术进行交流的，如果你们两个都,知道那个同样的密钥。

哈佛公开课 - 计算机科学课程节选