BUUCTF：[MRCTF2020]千层套路

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BUUCTF：[MRCTF2020]千层套路

[MRCTF2020]%E5%8D%83%E5%B1%82%E5%A5%97%E8%B7%AF

套娃题，拿脚本解压

import zipfile
name = '0573'
while True:fz = zipfile.ZipFile(name + '.zip', 'r')fz.extractall(pwd=bytes(name, 'utf-8'))name = fz.filelist[0].filename[0:4]fz.close()

解压出来六百多个压缩包，得到qr.txt，qr.txt内容是RGB数据，整理成如下格式

使用脚本将RGB数据写成图片

from PIL import Imagex = y = 200
img = Image.new("RGB",(x,y))
file = open('./qr.txt','r')for width in range(0,x):for height in range(0,y):line = file.readline()rgb = line.split(',')img.putpixel((width,height),(int(rgb[0]),int(rgb[1]),int(rgb[2])))
img.save('flag.jpg')

得到如下图片

flag{ta01uyout1nreet1n0usandtimes}