> For the complete documentation index, see [llms.txt](https://gitbook-88.gitbook.io/ctf-writeup/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://gitbook-88.gitbook.io/ctf-writeup/2020/2020-ctfshow-36d-bei/justshow.md).

# justShow

根据提示知道是凯撒加密，看后半部分知道加密方式即左移一位，将其还原：

```
gkbfnxeripjmxhemoc:abcdefghijklmnopqrstuvwxyz
```

26key猜测为普莱菲尔密码加密。工具链接：<http://ctf.ssleye.com/playfair.html>