chinese hacker-----WriteUp

原题地址：http://ctf5.shiyanbar.com/web/2/

提示下载一个数据库

下载下来后发现是加密的  有密码，但发现密码不是4648

这里用到“DbView”

直接破解密码进入

发现密码

Code1 ：INXW2ZLPNYZDAMJSMJQWE6I=

解开后得到key1 ：1GetThEFirst

然后Code2说让我们回过头看看Code1的值

这时候就知道肯定是base加密

但是解密后发现不是base64加密

想起之前提示的Key Words: 4648

顿时想起rfc4648

关于rfc4648的介绍：http://www.ietf.org/rfc/rfc4648.txt

写了个Python脚本（因为具体不知道是base32 还是base16加密 就两个都试试）

import base64
print base64.b32decode("INXW2ZLPNYZDAMJSMJQWE6I=")
print base64.b16decode("INXW2ZLPNYZDAMJSMJQWE6I=")

base16加密报错了   说明密文是base32加密的

得到最终flag：1GetThEFirst+2tHEWinNer

时间： 2024-12-28 16:18:42

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