How can users log on through a system with equal strings?

Source: Internet
Author: User
Checks whether the account and password match when a user logs on. You can determine whether the strings are equal. So how can we break through such logon restrictions? {Code...} checks whether the user logs on to the account and password match. You can determine whether the strings are equal. So how can we break through such logon restrictions?

Php

  $ Get) {echo "login fail.";} else {echo "login succeed .";}

Reply content:

Checks whether the account and password match when a user logs on. You can determine whether the strings are equal. So how can we break through such logon restrictions?

Php

  $ Get) {echo "login fail.";} else {echo "login succeed .";}

Unless brute-force cracking is performed, or the database is intruded into to directly modify the data.

The password can be determined by bit based on the time required by the Log service to determine that the password is equal.

So next time, use the equal ratio algorithm of common data.

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