Decrypto 8.5 is a free program for solving cryptoquips (also known as simple substitution ciphers). It is completely automated and extremely fast.
About Decrypto
As a child, I used to race my parents to complete the cryptoquips published in our newspaper.
Occasionally, all of us would get stumped, and we wished we could find out the answer. This
program will automatically compute the answer to most cryptoquips.
Decrypto offers both dictionary and statistical attacks. In a dictionary attack, it tries to match
up words in the dictionary against words in the puzzle. This means it can solve any puzzle that
consists of words found in the dictionary, but it also employs techniques to deal with the
occasional non-dictionary word. The statistical attack is effective on a broad range of puzzles,
and can produce a solution even if the word boundaries are not known (i.e., spaces have been
removed from the puzzle.)
FAQ/Troubleshooting
Where can I find cryptograms?
Look in your local paper. But to get you started, here are some:
*PG XOYHLM XOYLY PZ GH TPUUYLYGRY EYXBYYG XOYHLM WGT JLWRX
PRY. PG JLWRXPRY, XOYLY PZ. - MHIP EYLLW
*BN SK HGKS SJPD SK SKXK OCBGI, BD SCZVO GCD LK MPVVKO XKRKPXMJ,
SCZVO BD? - PVLKXD KBGRDKBG
*T NEKZ ZD ZUE NDDOG PEWQMGE T NTGUEO ZD LTXE OELTPEHQZELB, ZD
IHDKZ DKLB ZUE EGGEKZTQL IQWZG DI LTIE,QKO GEE TI T WDMLO KDZ LEQHK
NUQZ TZ UQO ZD ZEQWU, QKO KDZ, NUEK T WQSE ZD OTE, ZD OTGWDXEH
ZUQZ T UQO KDZ LTXEO. - UEKHB OQXTO ZUDHEQM
I get too many solutions!
Try providing (or guessing) a few hints or using a smaller dictionary.
I don't get a solution (or I don't get any good solutions)
This means that there are words in the puzzle that aren't in the dictionary. Try enabling partial
solutions. You can also instruct Decrypto to ignore words by adding a carat (^) to the beginning;
if the cryptogram looks like a quote, escaping the attribution (the proper name) might help.
You can also try using a larger dictionary.
How can I create my own cryptograms?
Type in your puzzle and hit the "Encode" button.
How does it work?
Here's a description of the algorithm, or you can take a look at the source code (above).
How can I donate?
The software is free, but contributions are always welcome. Visit here for some options.
CLICK THE LINK BELOW TO DOWNLOAD
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