[Auto] 什么是分组密码？它如何保护你的数据？

[miyaliu666]

• 原文网址：Cipher Definition – What is a Block Cipher and How Does it Work to Protect Your Data?
• MarkDown 文件：https://github.com/freeCodeCamp/news-translation/edit/main/chinese/articles/what-is-a-block-cipher.md