This is an explanation of the Cryptography challenge 'New Caesar' from CyLab Security Academy (formerly picoCTF). You are provided with a short ciphertext and the single Python script that created it.
2.1 Python 安装与虚拟环境创建 Python 安装是第一步，也是最容易翻车的地方。Windows 10 上建议直接去 python.org 下载 3.8 或 3.9 版本的安装包，不要用 Microsoft Store 里的版本，那个版本路径权限有问题，后面装库会报一堆莫名其妙的错。安装时务必勾选“Add Python to PATH”，否则命令行里敲 python 会提示找不 ...
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