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Messages 6260 - 6290 of 6390   Oldest  |  < Older  |  Newer >  |  Newest
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6260
Hi all, Ive been set the challenge by one of my fellow Maths Ungraduates of cracking a code that I claimed was easy to break. Basically the Plaintext is put...
Simon Kilby
skukok
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Nov 17, 2004
2:13 pm
6261
Hello Simon ... Probably because I am dumb, but I can't quite understand the explination you gave. But, trying to read between the lines, it sounds a bit like...
Andrew Bruno
abruno@...
Send Email
Nov 18, 2004
12:26 am
6262
... Hi Andrew, Well my explanation was a bit rushed, and not all that clear, first you will need to know how Matrices Multiply, and http://tinyurl.com/6w7yo...
Simon Kilby
skukok
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Nov 19, 2004
1:06 pm
6263
Hello Simon ... Yes. I shall look at the link now and study it a bit more. Regards -- Andrew Bruno abruno@......
Andrew Bruno
abruno@...
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Nov 20, 2004
8:29 pm
6264
Hello Simon (What's happened to everyone else?) Well after reading the link you sent and breaking it down to a simple form and from what I understand: For any...
Andrew Bruno
abruno@...
Send Email
Nov 20, 2004
8:45 pm
6265
... From your description, this appears to be the Hill cipher. http://en.wikipedia.org/wiki/Hill_cipher You could conceivably brute force the matrix, presuming...
matt_crypto
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Nov 22, 2004
1:37 am
6266
Hello matt_crypto ... Struth! Just had a look at that link and it is written in some foreign language! ;-) I can't understand much of it at all. But I think...
Andrew Bruno
abruno@...
Send Email
Nov 22, 2004
5:12 am
6267
Thanks to everyone whos sent me their thoughts on this, it looks like Matt has found a version of it and will be passing the info to my friend. Ill try to...
Simon Kilby
skukok
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Nov 22, 2004
1:47 pm
6268
For 250 years it has exercised the minds of theologians, historians and scientists. Charles Darwin was observed pondering its meaning, and Josiah Wedgwood...
Mike Boyle
galabad2000
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Nov 27, 2004
9:18 pm
6269
Its all about the Quest not the Grail! ... and scientists. Charles Darwin was observed pondering its meaning, and Josiah Wedgwood spent many an hour attempting...
jimbrady53
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Nov 28, 2004
2:22 pm
6270
Hi, folks, I see that this group is still alive. Those of you who are into the history of code breaking will know that this group was formed last century, in ...
Terry Froggatt
terry_froggatt
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Nov 29, 2004
6:09 pm
6271
FNRXOECDTBYUDYBUJKMQYREELMOJTENDNADSNNIRZSCICOAOMRACKE CDTRZFQRTBNDNYRNYHDZEJEDAPHWDTCKEBAAWRBRFICKEVAONDUJES ...
eriksmetana
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Dec 15, 2004
3:18 am
6272
Only loosely connected with the CiperChallenge...but if anyone wants to win a copy of Simon Singh's Big Bang then take a look at this:- ...
Mark Oakley
jmoakley
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Dec 17, 2004
8:46 pm
6273
Hello: I posted this cipher on a few other groups. no one seems to want to give this one a shot. I am stuck on the following cipher: ...
lotech
lotechlives
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Dec 19, 2004
4:31 am
6274
Hi Steve, I'm not sure if this constitutes "light" because I haven't solved it either. The description of using a cipher wheel with a specific alphabet...
Dave Smith
aca_photon
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Dec 22, 2004
9:48 pm
6275
Looked at this very briefly. He lays out the cipher alphabet used, presumably in the right order, and says the keytext is in the letter. If you brute forced...
Alexandra Fiona Dixon
alexandrafio...
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Dec 23, 2004
7:38 am
6276
Good to hear from you again, Alexandra. I actually tried using the entire text of the letter as a running key, but didn't find an entry. On one attempt, I...
Dave Smith
aca_photon
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Dec 23, 2004
2:03 pm
6277
Although we don't "see" much of each other, I would like to wish you a Merry Christmas and a Happy New Year. Keep up the energy and the good work you are ...
Aurélio Moreira
antauro@...
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Dec 23, 2004
6:14 pm
6278
Looks like we're all starting to crawl out from under our rocks. Hello, Alexandra. Long time, no read. Hello to you again, Dave. I just took a serious look at...
keystonejcl
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Dec 24, 2004
9:14 am
6279
Hi John, Stretch - Yawn - Blink -- waking up is so much fun! I put a copy of my program in the files section of this group. It's called Vig39Drags.exe. Its use...
Dave Smith
aca_photon
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Dec 24, 2004
3:42 pm
6280
Dave: Are you saying put the crib in the Plaintext box and drag or put it in, hit Encrypt, then start dragging? John...
keystonejcl
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Dec 25, 2004
12:22 am
6281
Seems my last post got lost. I am thinking some cribs for the plaintext might be. "forty four" or "44" "seventy three" or "73" "degrees" or "degs" "point" or...
lotech
lotechlives
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Dec 25, 2004
12:51 am
6282
John: Yep. When you hit encrypt first, you merely encrypt the crib in the first position. Each subsequent hit of the drag button (or the <enter> key) moves the...
Dave Smith
aca_photon
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Dec 25, 2004
5:56 am
6283
Dave: Thanks. I actually figured it out last evening after my post. Clever app. I've tried dragging just about every logical crib I can think of through this,...
John Lobert
keystonejcl
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Dec 25, 2004
4:01 pm
6284
Merry christmas all: From the tests I've run. I don't see any signs of it being a short keyword. I'm kinda thinking the keyword is the same length of the...
lotech
lotechlives
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Dec 25, 2004
5:27 pm
6285
You may be right about the length of the keyword, but in analyzing bigrams, the most common factors are 2, 3, 5, and 7. Two and three are unlikely lengths for...
John Lobert
keystonejcl
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Dec 25, 2004
9:49 pm
6286
Most of the geocaches I've done where a cipher is involved, The plaintext would say something to the effect of: please go to N 44° 22.541 W 074° 11.673 in...
lotech
lotechlives
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Dec 25, 2004
10:04 pm
6287
Thanks for the info. It will prevent going up more blind alleys... ... [Non-text portions of this message have been removed]...
John Lobert
keystonejcl
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Dec 25, 2004
10:21 pm
6289
How long are these message typically? Is our CT too long?...
keystonejcl
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Dec 28, 2004
9:42 pm
6290
Well, some are real short. Yet some I've seen are pretty long. They contain other instructions beside just the GPs coordinates. So the length of the cipher...
lotech
lotechlives
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Dec 28, 2004
10:30 pm
Messages 6260 - 6290 of 6390   Oldest  |  < Older  |  Newer >  |  Newest
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