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Breaking LFSR-based pseudo-random number generators

January 22nd, 2011 · 11 Comments · hacking

Another english post? Yes because this is related to the first Security By Default Wargame that took place a few days ago. Congratulations to Int3pids! Nowadays, I think most security related people know the importance of random numbers in cryptography. We need to generate IVs, session keys, challenges, tokens, etc. that make our crypto systems [...]

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Campus Party 2010 – Wargame Leftovers winner!

August 30th, 2010 · No Comments · hacking, programming

Just a quick note and I’ll be back to my regular spanish written crappy blog. Uri from Int3pids won the challenge. Congratulations! Eloi, dreyer, earada, kachakil and roman_soft did a great job too, thanks to all the participants. Now you can find online the solution of Crypto02

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Campus Party 2010 – Wargame Leftovers

August 2nd, 2010 · 4 Comments · hacking, programming

Campus Party is over now, it was a great week. Here are two unsolved levels from the hacking wargame, they were available in the contest so we wanted to release them. Go, get them and have fun! First to solve both gets a $30 gift card for Amazon. All the info available at http://vierito.es/cp2010wargame/

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Crypto04 challenge write-up from Campus Party Europe

April 19th, 2010 · 4 Comments · hacking, programming

Hey there! I usually write in spanish here but as the attendance at Campus Party Europe was pretty international I’ll do this one in english so anyone can understand it. All the information to try the challenge is at Eloi’s blog since he released it as challenge a couple of days ago. Before continuing I [...]

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[Campus Party 09] Las crónicas

September 7th, 2009 · 7 Comments · hacking, internet, personal

Ya hace más de un mes que terminó la Campus Party en Valencia. Como ya comenté este año la Campus volvió a la Ciudad de las Artes y las Ciencias para bien y para mal. La carpa no tenía nada que ver con la de 2004, era mucho más grande y mejor climatizada aunque una [...]

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