Monday, July 9, 2012

Solution for bright-shadows.net : Crypto - Easy starter!

Solution for Bright-Shadows.net : Crypto - Easy starter!

This is the link to the original challenge: http://bright-shadows.net/challenges/levelc1/crypto1.php
However, you will need to register before you can make an attempt to solve this. 

Quest:
The decrypted text will tell you the solution.
tedespqtcdezypozyzeqzcrpeesleespalddhzcotdlsopqufvwrcmodprq


The first thing that came to my mind for all basic crypto challenges is Caesar's Cipher.
Immediately, i thought of using this to help me to do a quick check whether my hunch is correct.
 


After some tampering with the shifting, it seems that N got to be 15. In other words, shift 11 to the right and we got back the following:
itsthefirstonedonotforgetthatthepasswordisahdefjuklgrbdsegf
The author of this challenge just concatenate it altogether and the password to the challenge is "ahdefjuklgrbdsegf" without the double quotes.

That's pretty easy for everyone to understand. :D


Cheers
0x4A61636F62

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