BUUCTF 丢失的MD5 1

YueXuan

发布于 2025-08-18 19:22:48

1671

密文：

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

解题思路：

密文部分给了一串Python代码，发现一个语法错误

修改后

运行代码，报错

报错原因是：必须在哈希之前Unicode对象进行编码对代码进行修改，对字符进行（UTF-8）编码

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)