内部赛misc3_来一杯橙汁

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内部赛misc3_来一杯橙汁

ThTsOd

#key='flag{X0Ring_file_EncRYp7_in_100%OrangeJuice}'
pngend='IEND\xae\x42\x60\x82'
import os
j=0
while(j<170):
    f=open("./png/"+str(j)+".png",'rb+')
    i=0
    f.seek(-8,os.SEEK_END)
    data=bytearray(f.read())
    for i in range(8):
        data[i]^=ord(pngend[i])
    print(data.decode())
    f.close()
    j+=1

得出来结果，手动收尾拼接得到flag