buuctf crypto-丢失的MD5

1.下载zip压缩包

2.解压压缩包得到一个py文件

3.尝试用pycharm打开文件得到一串py代码

4.解析py代码

python3
print des -格式错误
改为
print(des)

运行

import hashlib   
for i in range(32,127):
    for j in range(32,127):
        for k in range(32,127):
            m=hashlib.md5()
            m.update('TASC'+chr(i)+'O3RJMV'+chr(j)+'WDJKX'+chr(k)+'ZM')
            des=m.hexdigest()
            if 'e9032' in des and 'da' in des and '911513' in des:
                print(des)

发现结果为
原因是

 import hashlib
for i in range(32,127):
    for j in range(32,127):
        for k in range(32,127):
            m=hashlib.md5()
            m.update('TASC'.encode('utf-8')+chr(i).encode('utf-8')+'O3RJMV'.encode('utf-8')+chr(j).encode('utf-8')+'WDJKX'.encode('utf-8')+chr(k).encode('utf-8')+'ZM'.encode('utf-8'))
            des=m.hexdigest()
            if 'e9032' in des and 'da' in des and '911513' in des:
                print (des)

得到结果

e9032994dabac08080091151380478a2

即flag{e9032994dabac08080091151380478a2}