Discuz Php open-source forum security question Algorithm

Comments: Today, my friend asked me if I could spare the answer to the discuz security question. Or crack, I have noticed a password before. I only remember that it was very short. I thought it was the MD5 obtained by substr, and finally I read the source code for half a day. It was actually MD5 encrypted. However, the encryption process is a bit dizzy <option value = "0"> no security questions </option> <option value = & q today, my friend asked me if I could spare the answer to the discuz security question. Or crack, I have noticed a password before. I only remember that it was very short. I thought it was the MD5 obtained by substr, and finally I read the source code for half a day. It was actually MD5 encrypted. However, the encryption process is a bit dizzy <option value = "0"> no security questions </option>
<Option value = "1"> Mother's name </option>
<Option value = "2"> Grandpa's name </option>
<Option value = "3"> father-born city </option>
<Option value = "4"> name of one of your instructors </option>
<Option value = "5"> your PC Model </option>
<Option value = "6"> name of your favorite restaurant </option>
<Option value = "7"> the last four digits of the driver's license </option> the encryption process is to encrypt the value first, for example, my question is "the last four digits of the driver's license". The value of the value is 8f14e45fceea167a5a36dedd4bea2543 and the value is "1v1. name. put the MD5 values of name and 7 together, that is, "1v1. encrypted ", the MD5 value is" f5d8e00a4ebc9ead4611c04706ae05fd ". Then, the 17th-to-24-bit 8-bit password" 4611c047 "4611c047 is the Database Password demonstration 7
8f14e45fceea167a5a36dedd4bea2543
1v1. name8f14e45fceea167a5a36dedd4bea2543
F5d8e00a4ebc9ead4611c04706ae05fd
4611c047