ChoJin’s Quarter
Computer Sciences, Cooking, Photography and Filmmaking…

Category

Archive for the 'Computer Science' Category

Reversing HotOrNot For Fun And No Profit

So I was bored the other day, browsing HotOrNot and particularly intrigued and interested by their new feature, the live chat.
I was wondering how they implemented it, and if it would be possible to exploit a security bug to live chat with anyone. So of course, I started a little reversing session!

Contents:

Decompiling the live [...]

Links of the Week 2

Ok, I'm late, it has been two weeks now. Here is the (lengthy) list:
News:

Obama Smeared As Former ‘Madrassa’ Student
CNN Debunks False Obama ‘Madrassa’ Smear
Police slash tents of homeless people

Educational:

Children see, Children do
List of full length documentaries
Frank Zappa debates about censorship
How Black Children View White Children
Why US Math education sucks
Black man trying to get a cab
Sniper [...]

Observer Design Pattern in OCaml

So, I've been programming again for a couple of weeks now (for myself I mean, of course I never stopped programming at work). When re-opening my files I realized I hadn't coded since 2004, and even back then, I wasn't very active. What I feared would happen had happened... Working all day long on a [...]

Links of the week 1

As Promissed here is a small list of interesting or funny links for this week:
Articles and News:

YouTube exposes torture in Egypt (direct link to videos: http://youtube.com/watch?v=8c1QfFiLDDI, http://youtube.com/watch?v=5QFSN8fyYHM, http://youtube.com/watch?v=r0-rQr6Np7A, and http://youtube.com/watch?v=ZQom4edkHkw

Colorblind Test
HD-DVD Volume Unique Keys Discovered (although I really don't see what is so extraordinary about it)
Upside-Down-Ternet (having fun when a neighbor is stealing [...]

The Joy of MS Windows: Logger.Banker.Byu

Like a lot of other computer savvy guys, I've been used to get called by friends to help them solve their computer problems. Today was no different, and as usual it was because of a ms windows computer infected with a spyware. Boy I hate this operating system...
Today's spyware was hijacking MSN to propagate itself [...]

BackupHDDVD Released - A tool to decrypt AACS

It seems that someone is looking for fame.
Check this thread out: BackupHDDVD, a tool to decrypt AACS protected movies.
If you want my opinion, the video is a little bit too marketing oriented to my taste. Especially given what the software is doing. After all, it seems to be just an implementation of the AACS specs. [...]

Why Leopard will sell more Mac mini

A thought I had couple of weeks ago:
I think Apple's new coming Mac OS X will help to sell more Mac mini...
Well, at least I know I'm going to buy a Mac mini as soon as Leopard is out. So I'm assuming I will not be the only one.
Why? Two words: Time Machine.

For those who [...]

New side-channel attack on RSA

Here is a very interesting article about a new side-channel attack on RSA, entitled On the Power of Simple Branch Prediction Analysis.
Definitively worth the read!

Steve Jobs to resign?

Yeah I know... A lot of people and analysts already mentioned this possibility, and I was not really worried about it... until I watched the WWDC 2006 Keynote.
Did you notice how long Steve Jobs talked during this keynote? I didn't time it, but over the 1h30 keynote I would guess he talked no more than [...]

Ring0 under Microsoft Windows 9x

For the posterity, this is the translation of an old article I wrote in 2000. Of course since most people don't use Microsoft Windows 95 or 98 anymore, this article is somehow outdated. Nonetheless, it can still have some interests for those who are interested in low level programming and reverse engineering on x86 architecture.
I'll [...]