CrackMe #1 Ver.2.00 :: C++ :: Difficulty : 2

KeyGenMe Location : CrackMe #1 Ver.2.00 @ Crackmes.de
Solution Location : Not Solved Yet

So, here is my first CrackMe. It's coded in ANSI C++. Features :
(*) NOT Packed
(*) NOT Encrypted
(*) Nice Konsole look with Double Sided Arrow Animation.

The Rules :
(*) NO Patching
(*) NO Brute-forcing

The Tasks :
1. a) Find the secret code that would pass security phase 1.
b) Find the secret code that would pass security phase 2.
2. Reverse the complete algorithm for checking the code.
3. Write a descent tutorial.

Readers, if you solve this, please upload your solution to CrackMes.de.