bugku Pokergame

链接

Pokergame

思路

1.两种图片，binwalk一下

2.得到了一个伪加密的zip，解开伪加密

3.得到code.txt以及半个二维码，code.txt中的base64解码后也能得到一个png。

4.组合

得到key{P0ke_Paper}

5.解压最开始的zip

6.k.jpg不能显示，010editor发现是zip文件。

7.David’s words.txt中有提示'only A is 1'那么其他的就是0

import base64
s="2345678910A2345678910A23456789102345678910AA2345678910A234567891023456789102345678910AAA2345678910A234567891023456789102345678910AA23456789102345678910AAA2345678910AAA2345678910AA234567891023456789102345678910AA2345678910A23456789102345678910A2345678910234567891023456789102345678910AA2345678910A2345678910AA2345678910AA23456789102345678910AAA2345678910AA23456789102345678910A234567891023456789102345678910A234567891023456789102345678910AAA23456789102345678910AAA2345678910234567891023456789102345678910AA23456789102345678910AAA2345678910AA23456789102345678910A234567891023456789102345678910A234567891023456789102345678910AAA2345678910A2345678910A2345678910AA23456789102345678910AAA23456789102345678910AA2345678910AA234567891023456789102345678910A23456789102345678910A2345678910234567891023456789102345678910AA2345678910A2345678910234567891023456789102345678910A234567891023456789102345678910AA2345678910A2345678910A2345678910AA234567891023456789102345678910A234567891023456789102345678910AA23456789102345678910AA2345678910A2345678910A2345678910A2345678910A2345678910AA23456789102345678910AAA2345678910AA2345678910234567891023456789102345678910A23456789102345678910AA23456789102345678910A23456789102345678910A2345678910A2345678910AA234567891023456789102345678910AA2345678910A2345678910A2345678910A23456789102345678910A23456789102345678910A2345678910A234567891023456789102345678910AAA2345678910AA2345678910AA234567891023456789102345678910AAAA2345678910A23456789102345678910A23456789102345678910A23456789102345678910A2345678910A234567891023456789102345678910A2345678910A2345678910AAA2345678910A234567891023456789102345678910AA2345678910AA234567891023456789102345678910AA23456789102345678910A2345678910A2345678910A2345678910AA2345678910234567891023456789102345678910AAA2345678910A234567891023456789102345678910A2345678910A23456789102345678910234567891023456789102345678910A2345678910A2345678910A234567891023456789102345678910A2345678910A2345678910A2345678910A2345678910AA23456789102345678910A234567891023456789102345678910AA23456789102345678910AA23456789102345678910A2345678910A2345678910AAA2345678910A2345678910A2345678910AAA23456789102345678910AAA23456789102345678910A23456789102345678910AA234567891023456789102345678910A2345678910A2345678910AA2345678910A23456789102345678910A234567891023456789102345678910AAA23456789102345678910AAA23456789102345678910A2345678910AAA23456789102345678910234567891023456789102345678910AA23456789102345678910A234567891023456789102345678910A23456789102345678910A23456789102345678910234567891023456789102345678910AA234567891023456789102345678910234567891023456789102345678910AAAA2345678910A"
s=s.replace("2345678910","0")
s=s.replace("A","1")
temp = ""
for i in range(0,len(s),8):
temp += chr(int(s[i:i+8],2))

print(base64.b64decode(temp))

得到Happy to tell you key is Key{OMG_Youdoit}

8.解压k.zip

9.提示

As long as you help me to fix, I'll give you what you want.
(It Is Reverse Flag)

10.k.jpg修改高度(没搞懂这一步)

11.反向一下，image combine，选自己，然后MUL情况下能看见flag。