Posted on 06/12/2010 7:35:59 PM PDT by nickcarraway
Amateurs shouldn't try encryption.
/johnny
But is it as good and successful as the code talkers? Never broken.
Yeah, but it still stands for known languages.
But it would be almost impossible to decrypt any document encrypted using the Abu Dhabi cipher," Al Mazroui said.
"Almost" is not a real good word to use around cryptography.
Anyone can send a set of garbage, demand that someone “break the code”, and claim that it is unbreakable when there is no message.
Cryptography is a skill of patience I don't have, but if this is the challenge, I think it's going to be pretty dang easy to break.
“Paging Bruce Schneier, will Mr. Bruce Schneier please come to the lobby.”
Seriously, I’d just about bet Bruce could easily take it down. Check a few of his cryptogram newsletters to see what he’s about.
I got the first message:
“Ouyay an’tcay eakbray ymay odecay.”
If you have a fixed set of symbols that you use on a block of text, those symbols are still going to be used in whatever frequency is typical for the use frequency for their substitutions for that language. What he needs to do is to have the letter substitution be changed according to some predetermined standard such as the first 100 letters of the message are encoded by the novel alphabet where A to Z = 1 to 26, the second 100 are encoded where A to Z = 5 to 26 and back through 4, etc, varying both the numbers in succeeding groups and the starting point in the novel alphabet for each. If one doesn’t know the varying group length or the start point for each group in the novel alphabet, one can’t easily look for any kind of frequency distribution for particular letters such as “e” or for common letter combinations such as “ed” “ing” “ly” and double letters such as “tt” in “letter,” “bb” in “bubble,” “dd” in “added,” etc.
techping.
This should take all of about a week or so.
brue reader....
This isn’t tech, it’s stupidity.
Yeah, but your premise is useless. He invented a new language that only he and the second party knows. The way to crack this code isn’t to crack this by frequency of any letters or letter combinations alone, but rather comparing character frequency to all known languages, finding out what family of languages this constructed language is based on and decipher some of the cognates and frequently used words in that constructed language.
It won’t be a perfect cracked code, but you may be able to pick off a few simple words via cognates and frequently used words. All constructed languages are related to some language family or the other.
The ‘boys’ and ‘girls’ at Bletchley Park might differ with the author.
Anybody can make up his own personal secret code and defy another to break it. If no one else understands it then it is a shallow lesson in futility.
Like they say “The only true way to have 3 people keep a secret is to kill 2 of them”.
So what? The VIC cipher was never actually broken: the Soviet agent who used it defected and told us the algorithm and what he and his handlers were using for keys—straddling checkerboard to convert the letters to one or two digit numbers, followed by Vigenere-style encryption of the digits, followed by, if memory serves, a round of ordinary keyword columnar transposition and one of disrupted keyword columnar transposition, followed by reconversion to letters using the straddling checkerboard.
That is the way that I interpreted it as well. It is also interesting that some kind of formatting seems to be used, as the lines are of varying length.
Wouldn't it be better to have him sell this to Al Queda, and have them use the unbreakable code?
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