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  #1  
Old 12-12-2012, 04:42 AM
tshan tshan is offline
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Default Help Cryptogram question!~ thanks a lot

Hi,
I currently have a very hard time to solve a assignment, which is about the cryptogram:

MMCBT EOERS JYOMR MVRQS TYCCQ ZCEDK OAHGO EBDRB QEDVB THLJP FVETL HBDMH FKGJV PDWIY ORZPF LJLJV JTQQH GPVHD JYZZC EDKOQ AZQLJ LJJTR QQBSS EDQCL VEOCD KCAAK FVVGP HDTFI MKCAR PXQMK JVWCL LCDXC QGRHW ISEQK FQMGQ QHTLC DDORD QCCAK FUWDL YHJSW BUCCA MFYOE QEITJ WMMYL JZSHJ YCCAY EHDTQ EHGQO AYGJV INJFI BEQGR CAYEL LDOWB ZCOMY FAAMF CNPEV MLXVA ZFJDQ SCTEO E


can everyone help me out on this text?? thanks a lot~
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Old 12-12-2012, 04:56 AM
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tshan,

This isn't a simple-substitution code. You're on your own.

Just a heads-up, because you're new: We have to deal with folks rather frequently who try to get us to solve problems and homework for them. We don't really like that. If you want to talk about cryptograms and random thoughts that cross your mind, we're generally friendly people.

Hope you get into the crypto-craze.
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  #3  
Old 12-12-2012, 05:52 AM
tshan tshan is offline
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Hi, im a new here, because this question is really too hard for me to solve it, even have no idea to start. It is a question from my teacher's example list, just want to find anyway or ideas that i could use to solve any other similar question like this. if you can help me some, many thanks
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  #4  
Old 12-12-2012, 09:40 AM
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gryhnd51 gryhnd51 is offline
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Tshan,
Lurker is quite right that this is NOT a simple substitution code. I seriously doubt that any of us could help you, even if we wanted to.
What teacher?? What class?
We're mostly a bunch of pretty nice folks who love to help when we can, but that's not always possible.
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  #5  
Old 12-12-2012, 06:44 PM
tshan tshan is offline
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hi, thanks for replying. it is a college Applied Math course. I think the code start with a double "MM", which means there must be a space between 2 Ms, like M MCBT...and MCBT... should be a word after M, I take a guess that M is more like an "I"?? because it could not be an "A"?? so it will be like "I" "I"CBT...otherwise i cant think out anything else... it is a really hard question. if you guys can help me or any suggestions. thanks
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  #6  
Old 12-13-2012, 01:02 PM
cipher4u cipher4u is offline
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Quote:
Originally Posted by tshan View Post
Hi,
I currently have a very hard time to solve a assignment, which is about the cryptogram:

MMCBT EOERS JYOMR MVRQS TYCCQ ZCEDK OAHGO EBDRB QEDVB THLJP FVETL HBDMH FKGJV PDWIY ORZPF LJLJV JTQQH GPVHD JYZZC EDKOQ AZQLJ LJJTR QQBSS EDQCL VEOCD KCAAK FVVGP HDTFI MKCAR PXQMK JVWCL LCDXC QGRHW ISEQK FQMGQ QHTLC DDORD QCCAK FUWDL YHJSW BUCCA MFYOE QEITJ WMMYL JZSHJ YCCAY EHDTQ EHGQO AYGJV INJFI BEQGR CAYEL LDOWB ZCOMY FAAMF CNPEV MLXVA ZFJDQ SCTEO E


can everyone help me out on this text?? thanks a lot~
Another oddity... All of the letters of the alphabet are used. It could be that there is a null letter, or two. If you knew which letters were meaningless and removed them from the code it could still possibly be a substitution cipher... grouped in 5s to make it harder for humans to crack?
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  #7  
Old 12-13-2012, 07:29 PM
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pootie49 pootie49 is offline
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Since the cypher ends in a single letter, try working it backwards.
Remove all double letters that appear ...either just use the letter once
or remove them completely.
ie...the fifth cypher is tyccq
remove the two c's
either replace it with just one
or take them out completely
reverse the order

this is just a guess. do that with every double letter in each occurrence.
reverse the cypher so it starts with e..
then use this...

Code:
http://www.blisstonia.com/software/WebDecrypto/
simply enter the cipher and try to see if it can help you.
or try it with the idea you had with the mmbct where there is a space between
double letters.

cypher4u is right all the letters are used and its five letters per "word"
try every fifth word.
i suspect there are null letters in there, im assuming its the double letter instances.
another way to look at it would be to find the most common letter used
count each letter ..find how many times each letter is used and look for a pattern.
the solve could be in the pattern not the letters themselves.
i dont know if this helps but its better than a grouchy response.
good luck.

Last edited by pootie49 : 12-13-2012 at 07:32 PM.
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  #8  
Old 12-13-2012, 07:49 PM
tshan tshan is offline
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thanks everyone's kind help and suggestion, this encoded text message is really different than usual, because it is ordered by group of 5, I think which is the way that our professor try to make it easy to read?? but somehow, it becomes the hard part for others who solve cryptograms in a regular way, usually cryptogram shows the exactly decoded english words separated by regular space.
Example for regular cryptogram:
UQ TYBQ ZMK
WE HAVE FUN

In this case it is more similar like:
UQTYB QZMK
WEHAV EFUN

I think it is the point. But as a new on solving Cryptogram games, I really been a hard time to understand how to guess the letters =.= I just feel crazy when I read a such long message with ridiculous group ordered. Hope you guys could give me more suggestions ^_^ BTW, im a new here, but Im not trying to play u guys and make myself smart, just hope u who is more professional than me, could help me out some. best regards!!

Last edited by tshan : 12-13-2012 at 07:55 PM.
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  #9  
Old 12-14-2012, 05:43 AM
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pajarito7 pajarito7 is offline
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tshan,
Since frequency anaylsis doesn't help with this code, it is likely a polygraphic substitution. Depending on what you are learning in your applied math class, some type of mathematical algorithm is applied to a group of letters to generate the cipher text. If you are studying linear algebra, then it is likely that letters are grouped into digraphs, and then multiplied by a 2x2 matrix key. The letters that are generated each represent two letters in the original text. You would need to find the matrix inverse to decode this, or your professor may have supplied the matrix key. The blocks of 5 letters are just the common way of grouping the digraph substitutions.
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  #10  
Old 12-14-2012, 06:18 AM
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pootie49 pootie49 is offline
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well ...that was my second theory H.
LOL
smarty pants!
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