The ascii code for a particular white pixel in the picture is equal to the offset from the last white pixel. The text contained in the image is the answer encoded in Morse.
This level is about a corrupted file. Someone downloaded a bz2 compressed png-file which contained an important password. But he forgot something important, and so the file got corrupted. It is up to you to fix it.
Bypass the image captcha This level is about OCR. Write a program which is able to read all the characters in a given image, and let it beat a captcha automatically.
The goal of the challenge is to write a basic irc bot to perform some simple commands. It should only do things when
told however (no automatic processes) and to keep it interesting, no mirc scripts.
This challenge has to do with creating algorithms to break one-time pad encryptions. You must create your own algorithm for solving a provided sudoku, and then applying the solution as the key against a blowfish-encrypted string.
This site is the collective work of the
HackThisSite staff. Please don't reproduce in part or whole without permission.
Page Generated: Mon, 12 May 2008 06:01:18 -0500 Exec:
108
