这个题看描述让用pyzipper这个库,并且说密码只有一位
emmmAES256加密的压缩包
查一下下pyzipper这个库
import pyzipper
secret_password = b'lost art of keeping a secret'
with pyzipper.AESZipFile('new_test.zip',
'w',
compression=pyzipper.ZIP_LZMA,
encryption=pyzipper.WZ_AES) as zf:
zf.setpassword(secret_password)
zf.writestr('test.txt', "What ever you do, don't tell anyone!")
with pyzipper.AESZipFile('new_test.zip') as zf:
zf.setpassword(secret_password)
my_secrets = zf.read('test.txt')
这是官方文档给的用法,上面加密,下面解密
稍作修改,直接爆破
import pyzipper
PwdLists = []
for line in range(255):
try:
with pyzipper.AESZipFile('zip.zip') as zf:
pp = line.to_bytes(1, 'big')
zf.setpassword(pp)
m = zf.read('flag.txt')
print(m,line)
except:
pass # 失败跳过
print("OVER")
得到flag和密码:
nynuctf{5b3807f9-912b-4b57-8c38-ccf268a27b48} 254