The FBI is making some codes to incentive cryptanalysis, anyone can try cracking it and I think it's very fun.

http://www.fbi.gov/page2/dec08/code_122908.html

Quote from FBI :

Last year, we challenged you to crack a code created by the “cryptanalysts” in our FBI Laboratory, who are experts in breaking ciphers of all kinds.

Tens of thousands of you did so.

Are you ready for round two? We hope so. But bear in mind, this year's code is slightly more difficult.

Once again: if you want a primer on basic cipher systems and how to break them, see the article "Analysis of Criminal Codes and Ciphers."

Good luck!

I managed to crack it in about 20 minutes.
So.... Can you crack it?

Please, if you crack the code, don't put the answer here, or if you want use white text or something.

Hmmmm.... Confusin lol

There is a mistake in the code in the original post. It should be:

VFWTDLCSWV. YD NSLMIJFWEJFD GSW SL NIJNQBLM FOBV EJFDVF DLNIGTFBSL. KBVBF YYY.AHB.MSK/NSCDC.OFZ FS EDF WV QLSY SA GSWI VWNNDVV.

Put me off when I was on my way to cracking it.

*tries his hand at cracking the code* *Fails.* *Thinks it's rather stupendous.*

Quote from Thunderhead :

stupendous.*

Cloo

I was able to pull it off.

Cool, took about 5 mins.

Easy. It says "wheres our damn scirroco at?"

Quote from Sueycide_FD :

Easy. It says "wheres our damn scirroco at?"

Go troll somewhere else. :doh:

On topic - Someone tell me how to do this, I'm completely confuzzled.

Quote from S14 DRIFT :

On topic - Someone tell me how to do this, I'm completely confuzzled.

Letter substitution. There's some that should stand out, get the obvious letters then get the obvious words to get more letters.

There's probably a pattern (cypher ?) but I didn't work it out that way.

Try to decypher "YYY.AHB.MSK/NSCDC.OFZ"....... wat that look like to you?

Quote from FBI code decyphering tutorial :

The name Bob Smith would be encrypted as follows:

LFS has connections to FBI?

Quote from Xaid0n :

Try to decypher "YYY.AHB.MSK/NSCDC.OFZ"....... wat that look like to you?

like a thousand fingers raining down upon me. www.fbi.gov/coded.htm ?

Guys, you linked the wrong link for the maturity level of the forums.

Needed this one: http://www.fbi.gov/kids/k5th/jobs9.htm

Well, honestly, that took all of 30 seconds.
I should be a cryptographer. I was smart enough to just copy and paste the code in google

I have cracked the FBI encryption code and all I got was a lousy congratulatory link

Quote :

Congratulations, you did it! Thanks for participating,
and happy holidays.

a lousy caesar cipher is the best they could come up with? meh

Since it is difficult to design a good cipher, and since the apparatus is very expensive, a lot of work has been done recently to try to standardize on them. Even as I speak the International Standards Organization is meeting to decide on this very issue. Since there is a lot of confusion on this point I have been asked to make the position clear. The purpose of language is to convey information. This only works if both sender and receiver of information both use the same system. In other words language only works precisely because it is standardized.

The purpose of cryptography on the other hand is to make the message unintelligible except to one person. In other words cryptography only works precisely because it is NOT standardized.So what they do is to make most of the cipher standardized, and to concentrate the non-standardization into one part called the key.

So far so good. But of course the key, the non-standardized part, must be nonstandard in only standardized ways. And also key management must conform to certain standards. In other words standards are being formulated whereby the nonstandard parts, which must conform to certain standards of non-standardization, are also to be handled only in a standardized nonstandard way in order to standardize on the overall non-standardization.

I hope this makes the position clear.

They probably log the IP addresses of anyone who successfully gets through it. Then they sneak into your house and put chemicals in your food that make you homosexual.

you cant be made homosexual you have to be born like th84 i mean that

Quote from Shotglass :

So far so good. But of course the key, the non-standardized part, must be nonstandard in only standardized ways. And also key management must conform to certain standards. In other words standards are being formulated whereby the nonstandard parts, which must conform to certain standards of non-standardization, are also to be handled only in a standardized nonstandard way in order to standardize on the overall non-standardization.

I hope this makes the position clear.

It sure does! :rolleyes:

Pure genius Shotglass, and even more confusingly it's fairly true.

w4h: One of my best friends is straight, i've nothing against your kind.

Quote from Becky Rose :

Pure genius Shotglass, and even more confusingly it's fairly true.

Are you saying that as a Carol or a Charlie? After all that was more directed at Bob - fitting that Shotty's an Alice though.

Quote from xaotik :

Are you saying that as a Carol or a Charlie? After all that was more directed at Bob - fitting that Shotty's an Alice though.

I'm saying that as a Becky. HAH - the clever answer, i'm just me. No cryptography, i'm confusing enough as it is and most of my brain is fairly scrambled without taking any Charlie and Bob'ing on Carol whilst thinking of Alice.

Quote from Becky Rose :

I'm saying that as a Becky. HAH - the clever answer, i'm just me. No cryptography, i'm confusing enough as it is and most of my brain is fairly scrambled without taking any Charlie and Bob'ing on Carol whilst thinking of Alice.

You're definitely no Peggy. So let's just wait on Zoe to show up.