Spl3en

What about this ?

    for(y=0; y<ymax; y++) {
    for(x=0; x<xmax; x++) {
        //...
    }
    }

Another side effect generated from the experience :

There is no time limit for flipping the first coin, so if the guard choses the first square, I would wait 1 min before flipping mine. 60th square ? I would wait an hour.

If my friend outside is able to know precisely when I enter / exit from the room, he is able to know the correct square.

There is another known trick :

Place your string after a "call" instruction, then when you are inside the call, the address of the string is on the stack, you can pop it in any register you want.

Another very complete tutorial : http://www.brokenthorn.com/Resources/OSDevIndex.html

Thank you for all those precious advices, it means a lot to me.

I'll start blogging as soon as I've got something new and interesting.

I need to show what I can do, I'm currently studying and I feel like I haven't a lot of opportunities to really show off my skills because the level of recquirements is not high enough, that's frustrating sometimes.

I agree that a blog could be a good solution, I also enjoy writing articles even if my English is not the best.

I'll keep you informed if you enjoy receiving news from random internet people.

I'll certainly think about some softwares I'd like to analyze during the next few days and start working on finding bugs/vulnerabilities/things interesting.

Interesting, thank you very much for your detailed answer.

I think I'll aim a maintenance coder job in a company using low level languages (C would be good) and see what opportunities I can get from there.

I enjoy finding and fixing bugs, and as you said, even if it's not always necessary, reverse engineering is often a good ally for fighting bugs.

Thank you for your answer.

I've took a look at the Matasano project. It seems terribly interesting for me and it fits with my expectations.

Unfortunately, they recquire to work in their office, as an european (french) guy, I can't afford to move in America : I'd like to stay not too far from my family and friends if possible. I love programming / computer security very much, but I think I'd suffer from not seeing them anymore.

I'm looking for an french/european job, similar to the one proposed for Matasano Project. AFAIK, it doesn't exist... I consider moving to America if it isn't possible, but I'd like to avoid that if possible.

Hello, I love reverse engineering and programming a lot. I'd love to work as a "maintenance coder / reverse-engineer / re-implementor", but I've still no idea in which domain it is really needed. I do it for my own pleasure on some games / softwares at the moment.

Could you tell me what is the best way to become a "a maintenance coder / reverse-engineer / re-implementor" ?

Thank you.