攻防世界 简单的base编码

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

题目说base解密   有点复杂哈

base系列加密可以看

base系列编码_Dalean.的博客-CSDN博客

根据字符特征 ,推断是base64加密的

解密

在线网址

http://www.jsons.cn/base64/

解密出来还是很长  但会短一点

所以就一直将结果解密

会得到

F#S<YRa[$*x7,>F3DH5N/3.5+J6WD%P841JRN_i51F1Z!

这个一看就不能继续使用base64解密了

看了一下#,¥,*,>等关键符号

不确定是base91还是base92  

就都尝试了一下   大佬知道的评论一下

在base92解密时得到flag

提交

flagd0_y0u_l1ke_base92_!??!_by_Sh3n

攻防世界新手Misc writeup

ext3

  • 在Linux,使用root账户挂载linux文件,打开后使用find *|grep flag查找到一个flag.txt,打开后是base64编码,解码获得flag。

give_you_flag

pdf

  • 直接pdf编辑器打开,移开图片,获得flag

simpleRAR

  • 16进制编辑器打开,发现有有一个图片文件的HEAD_TYPE域类型错误,更改后提取出图片文件,查看文件头,是一张gif,把两帧提取出来,stegsolve从灰度通道提取出两张破碎的二维码,拼在一起再修复一下定位点。

坚持60s

gif

  • 把黑白图片转换成0和1获得二进制串,转换成字符串

如来十三掌

  • 与佛论禅解码,再rot13。

掀桌子

  • 减去128,按十六进制转字符串。

功夫再高也怕菜刀

  • foremost分离文件,得到一个加密的压缩包,wireshark打开下载的文件,搜索flag关键字,在某一个包中找到6666.jpg,追踪TCP流,获得jpg的十六进制码,使用十六进制编辑器保存为jpg获得压缩包的密码。

stegano

  • 直接福昕编辑器打开,删除水印后,在上方超出可视范围的地方有一串AB字符,加空格,把A替换成.,把B替换成-,用莫尔斯码翻译。
  • 一开始直接把翻译出来的东西当flag提交了,后来发现真正的flag在最后面一截。

base64stegano

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