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|CLOSED: The Hacker Challenge Contest - 5BP|
Well, I solved 10 now. It really wasn’t that much of a challenge, if I had done one thing differently I would have got it first. Or maybe I’m just stupid.
|Posted On: 10/31/2008 3:35PM||View b3rND's Profile | #|
Darn. I did try anagramming the words in #8, but I was using a utility that didn’t consider proper names, so it didn’t find an anagram for the first set. So I figured I was on the wrong track.
I think it’s perfectly reasonable, though.
I went back to the server to confirm this, and there staring at me on the first screen of output was the correct anagram for the first words. Doh.Nykkel edited this message on 10/31/2008 3:41PM
|Posted On: 10/31/2008 3:40PM||View Nykkel's Profile | #|
as far as i know the 3 of us that were on the Axxxx when i finally ghot it were all working with the same flawed data
the best part about your bumhurt whining is that there is ONE google result for “paper itch jerk”, and it has the correct answer in it.
Leechbait edited this message on 10/31/2008 3:55PM
|Posted On: 10/31/2008 3:50PM||View Leechbait's Profile | #|
And that’s how I figured it out Log in to see images!
|Posted On: 10/31/2008 3:57PM||View MC Banhammer's Profile | #|
My problem was that I thought the parts were supposed to be decrypted separately. I didn’t even bother with the “AMSCO KEY” because it was obvious from the numbers and word length.
So when I did the Vigenere decryption starting with the five letter groups it came out wrong because it didn’t align with the key.
While the Flickr thing was a nice idea, I think this was too much like a race through the same kinds of encryption used in the other challenges, so it only depended on getting the details correctly.
(in other words: BAAAAAWWWWWWWW I DIDN’T WIN THE 5 BP Log in to see images!
|Posted On: 10/31/2008 4:03PM||View b3rND's Profile | #|
Well, I put all the solutions in the first page (Spoiler tagged.)
I didn’t fully give away the final one in case anyone wants to work on it still.
I hope you guys had fun. I did. But I’m glad it’s over. Thanks for playing.
SOME FUN FACTS THAT NO ONE GIVES A **** ABOUT:
To date this contest generated 521 Tubmails in my Inbox.
MC Banhammer sent me the most Tubmails, clocking in at 29.
The first answer for the challenge came from Nicco.
There were 134 Unique entries in the contest (i.e. 134 Tubmails from different users)
Less than 4.5% of entrants made it to the final challenge.
|Posted On: 10/31/2008 4:48PM||View aSh-gangSTA-685's Profile | #|
aSh-gangSTA-685 edited this message on 10/31/2008 4:55PM
|Posted On: 10/31/2008 4:54PM||View aSh-gangSTA-685's Profile | #|
Well, I may be a stubbon jackbum who wants to finish working through this thing (as I told h0g via Tubmail), but I’m not stubborn ENOUGH to figure out where I went wrong after I got to THE KEY IS HALLOWEEN – HMDNC GIC 41532 – AVUEW QCRHZ as far as the Bxxxxx is concerned. There are too many places I could have screwed up beyond that, at least to try dealing with right now (I’m bumuming it’s the 1/l/I bit making itself known, but I could be wrong). I’ll just keep going from what’s provided in the first post after that Z.
Jubbles edited this message on 10/31/2008 5:51PM
|Posted On: 10/31/2008 5:24PM||View Jubbles's Profile | #|
Damnit! I was banging my head against the desk trying to figure out the results from the AMSCO… and to find out it was all screwed up, ARGH! Oh well. Congrats to Leechbait!
|Posted On: 10/31/2008 7:29PM||View KrackAddict's Profile | #|
yeah i rechognized your wrong letters
luckily i had already not included all the infor once because decoding the Bxxxxxx i had left out the first message because i thought i had solved it
so i figured i should try doing all at once and it worked
my Axxxx had problems but i was able to guess what the words ought to be anyway
|Posted On: 10/31/2008 7:33PM||View Leechbait's Profile | #|
OK now that the contest is over I would like to add a side note Log in to see images!
The Vigenere cipher part in challenge 7 and 9 can alternatively be cracked with cryptanalysis without the need of a key. There is an algorithm invented by Kasisky to determine the key length. After that you can either use frequency analysis or known plaintext attack. Normally the ciphertext should be arranged in group of 5, but here it isn’t so plaintext guessing is easier. And there are even automatic programs that can help you.
If you go to http://smurfoncrack.com/pygenere/index.php and put challenge 9 in there with a key length of 6 you’ll get the text decrypted in no time
Now some of you asked for challenge sites like this, and I would like to introduce some
– TheBlackSheep at http://www.bright-shadows.net – this site has a lot of challenges in various categories, you can learn a lot from there.
– http://www.hackquest.de – your journey in the hacker world.
– http://www.net-force.nl – a Dutch challenge site, but the content is mostly in English.
– The Pyramid at http://www.rankk.org – solve the challenges, climb the pyramid and become a Geb.
– Electrica at http://www.caesum.com/game – a fun and tough challenge site.
– Ma’s Reversing at http://www.3564020356.org – one of the first challenge site, mostly about cryptography, steganography and reverse engineering.
– http://www.mod-x.co.uk – a level-based challenge site, you are an agent and completing the “hack” mission will take you to glory
– Many more that you can find from http://www.hackergames.ne , or my homepage http://www.freewebs.com/quangntenemy/
– And don’t forget to visit http://www.wechall.ne , the universal challenger tracker. Eventually all challenge sites will meet up in there.
|Posted On: 10/31/2008 8:49PM||View quangntenemy's Profile | #|
wat? I’m pretty sure Christmas Island is somewhere near Indonesia, which is probably UTC+7.
edit: oh, there are other Christmas Islands too..
Oh Jesus, challenge 10 looks like nightmare modeInertia edited this message on 11/01/2008 3:48AM
|Posted On: 11/01/2008 3:36AM||View Inertia's Profile | #|
WHY IS THIS STILL IN CONTESTS? Log in to see images!
REQUESTING MOVE TO FULL OF WON.
|Posted On: 11/02/2008 4:33PM||#|
Can I have my BP back now? C’mon guys I’m broke!
|Posted On: 11/03/2008 12:46AM||View aSh-gangSTA-685's Profile | #|
==> Full of Won
|Posted On: 11/03/2008 10:22AM||View MC Banhammer's Profile | #|