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Oliver X
Level 3: 197 points
Alltime Score: 5602 points
Last Logged In: December 8th, 2006
BADGE: Journey To The End Of The Night Organizer


retired

25 + 3 points

Decryption for Beginners by Oliver X, Gadget

May 2nd, 2006 8:26 AM

INSTRUCTIONS: Title aside, this is a fairly difficult task, but you'll be rewarded accordingly. Members of EquivalenZ will often run into situations where they're required to extract useful information from something that doesn't want that data revealed - in the most literal sense, this means you may find being able to break codes useful. Certainly, this can often be done by computer tools that handle just about everything themselves, but we'd rather you had some idea of what's going on when you click "decrypt". Ergo:

As long as you play fair, you'll find the key to this puzzle is right under your nose.

EKSDUBHBAFPLQOZBIDMCBUGIXIXEUQZFBUEL
FIGNKQHOZBFMCHQKLBQWHLGPMUFMWNKQEOIGZIDO
KCVLIGNHLPIPIDQBEOEPHICMUQCNFX

(the line breaks are meaningless - just for display purposes)

Also! As of 6/28/06, the message - and the instructions for how to provide proof - have changed. This is the original:
EKKUBLAHBLMXOKQOEFEPHICMHOSBILOBGOZOBFCIQKIZPI
DOBAFMWNHLGPMUOXQFFRBPXIQOFRISUCSEBQXQMURCXIQE
ENSHKTXMTPIDMPEWFHFGKMSIIDCRAFXFBK

Yes, the answer we've provided is identical to the previous one. We felt that giving any other answer would allow any third person to guess the pattern without solving the puzzle. They might even be able to guess some plaintext.
And we wouldn't want to spoil things for the other players, would we?

Instead, we offer these notes in the way of proof, which a quick turn of the key should unlock:

XDOBDOUYFTRQKRMDAUCIOXQUPHOBLWL
BDOQRDONRDBKCAPOPRFYREQLPTRRFEQ
MEFRPDNLEZCFQLFEEPXRQEVAGRGNHQS
PMCNROBFARFUORQQSMHKVTZ

- smaller

garfield.jpeg

garfield.jpeg



1 vote(s)



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2 comment(s)

Yo fellas
posted by Sean Mahan on May 2nd, 2006 8:45 PM

I assume you understand the position you've put me in. Perhaps you could change your proof in such a way as to remove its current ambiguity?

Hehehe
posted by Sean Mahan on May 2nd, 2006 10:05 PM

Ambiguity averted, and you've got my vote!