Finally, I broke the famous back-word software.

Intermittently, it took nearly half a year to understand VB compilation and crack it. At that time, I had the urge to buy it. But in the end, every time I think of the encryption method of this software, it is depressing. It is so complicated and difficult to accept. No matter what, let's take a look at the registration code encryption process and my cracking process. My attack is basically similar to the keygen method,AlgorithmThe key cannot be inferred by plaintext or ciphertext, And the MD5 algorithm is not reversible.ProgramChange its MD5 value to the md5of my fake key at a specific location.