I decided to take Leendert's analysis a step further. What I began to realize is that a fractionated cipher on a 14 x 14 grid can be broken down into 8,648,640...
47
Jim Melichar
sharpe_797979
Mar 28, 2011 8:25 pm
While I'm still not finished testing the key space, I did want to put all of my theory and analysis in one spot. If you have any comments or interest in my...
48
Dagapeyeff_Cipher@yah...
Mar 28, 2011 8:25 pm
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the Dagapeyeff_Cipher group. File :...
49
Jim Melichar
sharpe_797979
Apr 7, 2011 6:28 pm
I've uploaded a file with the best ~4,500 column pairings. They represent phi values 498 to 600 (the max achievable). As previously discussed, each of the key...
50
tiago_f_rodrigues
tiago_f_rodr...
May 30, 2011 10:51 am
Hi, as many of you know, i've been a firm believer that d'Agapeyeff cipher is a product cipher (substituition + transposition). The difficulty in solving...
51
Jim Melichar
sharpe_797979
May 31, 2011 3:43 pm
Tiago - Great to see you are still "hacking together some code". Kudos! If I may make a suggestion, it may be worth your time to cobble together a list of...
52
Jim Melichar
sharpe_797979
May 31, 2011 3:57 pm
Tiago - If you are interested in my suggestion, I have provided a list of all UK cities, towns, and counties within a file in my personal directory. UK...
53
tiago_f_rodrigues
tiago_f_rodr...
May 31, 2011 4:08 pm
Thank you Jim, Seems like an idea worth trying. I'll give it a go tonight and will let you know of the results. Tiago...
54
tiago_f_rodrigues
tiago_f_rodr...
Jun 2, 2011 1:20 pm
Hi, i haven't had a chance to post earlier, but I'd like to let you know the cipher still stands. Using UK city names for the polybius configuration didn't...
55
Jim Melichar
sharpe_797979
Jun 2, 2011 1:49 pm
Hi Tiago - Glad to hear you report back. Sorry there was no joy on the other end. I agree with you that the statistics of the "letters" in the current setup...
56
Jim Melichar
sharpe_797979
Jun 2, 2011 3:07 pm
As an aside, if anyone would like to turn my experiment into a poor man's distributed computing problem I'd be happy to share the program I'm using to test,...
57
Jim Melichar
sharpe_797979
Jun 9, 2011 4:14 pm
Tiago - I forgot to mention that I did do some very rough analysis around the first digits in the pair and the second digits in the pair. My results were in no...
58
tiago_f_rodrigues
tiago_f_rodr...
Aug 22, 2011 3:27 pm
Dear Dagapeyeff_Cipher group members, as some of you might know, for the past 2 years I've been maintaning the dagapeyeff.com domain with some information from...
59
Thomas
stpaulchrist...
Jan 5, 2012 7:20 pm
In the working through the 1939 Edition book by Alexander, I came across a test cipher on p. 104. Alexander writes, " I will leave the interested reader to...
60
johnwkryptos
Jan 6, 2012 7:40 am
Hi Thomas, I'm at work right now so I can't check my own copy of the 1939 edition right now, but I think you're confusing the key with the ciphertext here. The...
61
Dagapeyeff_Cipher-own...
Jan 6, 2012 3:31 pm
First of all, allow me to welcome Thomas to the Group. After some time away from this cipher, I've been doing some background thinking on possible new avenues...
62
Thomas
stpaulchrist...
Jan 6, 2012 4:23 pm
Hello John ! Thank-you for your reply, John ! Once you see the book, it will become clear. Alexander presented the German Army example which is located...
63
Thomas
stpaulchrist...
Jan 6, 2012 4:37 pm
Thank-you, Tiago. Will address your post after I get back from an appointment. Something I realized that might shed some light onto this, is that Alexander...
64
johnwkryptos
Jan 6, 2012 5:17 pm
Hi again Thomas! I'm at home now, book in hand ;) I was right about the key: The numbers are mapped in that order to the regular alphabet. The ciphertext can...
65
johnwkryptos
Jan 6, 2012 5:25 pm
I want to add to my last post about d'Agapeyeff claiming that "...it was quite easy to find the key and it is as follows:..." I fail to see how obvious and...
66
Thomas
stpaulchrist...
Jan 6, 2012 8:23 pm
Yes, based on your work and explaination, was able to follow along with what you did. So...leaving out an "E"(35) in PASSD doesn't seem to that much of a...
67
ruffnekk@...
johnwkryptos
Jan 6, 2012 8:29 pm
Okay, I was a bit tired from work, that's why I didn't see HERE... But that also means that in such a short cipher already 3 Es were misplaced... And as you...
68
Thomas
stpaulchrist...
Jan 6, 2012 9:31 pm
LOL...yeah, can understand that, John. Working all the examples in the book has been a challenge in and all by itself, with me as my own worst enemy. Have had...
69
Jim Melichar
sharpe_797979
Jan 6, 2012 9:45 pm
Regardless of the form of transposition you suppose D'Agapeyeff used, I feel it's doubtful that his erasing steps would have caused him not to remember the...
70
Thomas
stpaulchrist...
Jan 6, 2012 10:41 pm
Ok...to address your post, Tiago. On p. 146, Alexander explains how to decipher Vigenere Ciphers/Poly-Aplhabetic Systems. On p. 147, he writes: At first...
71
Thomas
stpaulchrist...
Jan 6, 2012 10:56 pm
From what I understand, Alexander never said he forgot "what" he encrypted, only that he forgot "how" he did it. If he wrote down the message on a blackboard,...
72
tiago_f_rodrigues
tiago_f_rodr...
Jan 7, 2012 3:43 pm
Thomas, I'm not sure I'm following you on this one. If there were multiple alphabets at play on the unsolved cipher, you wouldn't have a steady Index of...
73
Thomas
stpaulchrist...
Jan 7, 2012 7:17 pm
NFACT - It may be as you believe, the structure of the 158 Crypt gives us the key figures for the Vertical and Horizontal rows to compose our table. How I got...
74
Thomas
stpaulchrist...
Jan 16, 2012 7:51 pm
To provide a foundation with the approach I'm taking with the 158 Cryptogram, is an attempt to understand Alexander D'Agapeyeff. It has to be seriously...
75
Thomas
stpaulchrist...
Jan 24, 2012 4:02 am
Alrighty, solved the Cryptogram. But...need some help finalizing the answer...kind of mind warped after working on this...a fresh mind would be helpful....
