【视频讲解】PicoCTF 2022 使用Python完成mod运算
作者:FancyPig | 发布时间: | 更新时间:

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在网络安全入门的探讨中,推荐了Pico ctf
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在上一篇中我们分享了如何注册Pico CTF,并完成了其中一道二进制的题
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视频讲解
今天我们借此机会,给大家讲解一下如何使用Python来完成mod运算
- 知识铺垫:mod运算就是咱们常说的模运算,比方说100模30就是100除以30得3余10,则100 mod 30等于10
- 题目要求:将下面的数字分别mod 37,并将其映射到以下字符集:0-25 是字母表(大写),26-35 是十进制数字,36 是下划线
202 137 390 235 114 369 198 110 350 396 390 383 225 258 38 291 75 324 401 142 288 397
咱们简单一下说一下,202除以37等于5余17,然后17在0-25之间,从ABCDEFG一直到Z,第17个大写英文字母是Q,这样一个一个计算是不是有些麻烦?因此,我们将通过Python进行快速运算生成结果!