[Ramy1989]

Guys,I want to try writing a keygen in C.
Now I'm noob,who tells me an easy thing to try making the keygen,with clues of how to do it?

[_s1gma]

learn what you want to make a keygen for first..

[The Elite Noob]

You can't just make a keygen, well you can...
but what the heck is it for?

[Ramy1989]

Ok,I tell what I did till now.
I have photoshop cs5,I don't want to download the keygen,I want to try cracking it alone.
Until now I did this: I saw that there were 2 .exe files using my connection with CurrPorts,I blocked all these 2 applications with the firewall,so now these two adobe applications can't use my connection,but I see that if I put one of these serial numbers from these,the next time I open photoshop if I am connected a window spots saying that the serial I wrote was wrong.
Probably there's a spyware into my system files that comunicates the code.
I also have found many ways by google to crack it,using hosts file or things like these,but it doesn't work.
So I thought about writing the keygen in C,the fact is that I need some info before starting.
I have no idea of how afforing a problem like this,I have tried on google already.In C I know how to handle every type of data,write to file,use pointers,etc...now I don't know if with this knowledge it's possible,how should I start writing a keygen?
Also some google results are fine for me,I don't know from where to start.

[Scorch]

Ok,I tell what I did till now.
I have photoshop cs5,I don't want to download the keygen,I want to try cracking it alone.
Until now I did this: I saw that there were 2 .exe files using my connection with CurrPorts,I blocked all these 2 applications with the firewall,so now these two adobe applications can't use my connection,but I see that if I put one of these serial numbers from these,the next time I open photoshop if I am connected a window spots saying that the serial I wrote was wrong.
Probably there's a spyware into my system files that comunicates the code.
I also have found many ways by google to crack it,using hosts file or things like these,but it doesn't work.
So I thought about writing the keygen in C,the fact is that I need some info before starting.
I have no idea of how afforing a problem like this,I have tried on google already.In C I know how to handle every type of data,write to file,use pointers,etc...now I don't know if with this knowledge it's possible,how should I start writing a keygen?
Also some google results are fine for me,I don't know from where to start.

Voila,

[Ramy1989]

I feel like I study something else before doing this.

[_s1gma]

I feel like I study something else before doing this.

yep, ollydbg's interface makes the smurfs green.

[codeprada]

to make a keygen you must know assembly language and have a bit of experience in reverse engineering. actually writing c++ code for a keygen is the last stage. and writing a keygen for photoshop if you haven't mastered assembly language is impossible. photoshop's key generator uses alot of sophisticated methods to produce a serial.

check out lena151's reversing tutorials