Mexican Army Cipher Disk

shivers20

Junior Member
Joined
Mar 3, 2006
Messages
68
Can you help me with this Mexican Army Cipher Disk? I solved some of it.


15 10 25 72 17 72 14 04 32 31 51 26 44 47 12 38 22 13 37 48

35 36 14 15 78 11 26 09 48 30 42 22 15 37 64 24 28 36 30 22

74 26 76 10 59 68 08 48 09 91 01 25 10 76 37 51 52 56 33 32

14 04 18 4 10 77 04 30 11 32 56 14 80 45 07 26 56 37 78 11

44 47 17 04 14 48 36 37 86 33 05 32 09 48 56

I have this so far. Any help will be greatly appreciated.

1
2
3
4
5- I
6
7
8
9- N
10- O
11- P
12
13
14- S
15- T
16
17
18
19- X
20- Y
21- Z
22
23
24
25
26
 
shivers20 said:
I solved some of it....I have this so far....
How did you determine the values that you already have? Whatever method you are using found hard values (such as the very uncommon letter x), so your method shouldn't have any trouble finding the easy values (such as e). Where are you stuck?

Please be complete, including whatever information you obtain from this or other duplicate posts. Thank you! :D

Eliz.
 
Can you help me with this code. I made a frequency table. I also know that the code begins with " TO DIVISION ...?
How does the number 4 and 72 both equal the letter I ?


15 10 25 72 17 72 14 04 32 31 51 26 44 47 12 38 22 13 37 48

35 36 14 15 78 11 26 09 48 30 42 22 15 37 64 24 28 36 30 22

74 26 76 10 59 68 08 48 09 91 01 25 10 76 37 51 52 56 33 32

14 04 18 4 10 77 04 30 11 32 56 14 80 45 07 26 56 37 78 11

44 47 17 04 14 48 36 37 86 33 05 32 09 48 56

I have this so far. Any help will be greatly appreciated.

1- F
2- G
3- H
4- I
5- J
6- K
7- L
8- M
9- N
10- O
11- P
12- Q
13- R
14- S
15- T
16- U
17- V
18- W
19- X
20- Y
21- Z
22- A
23- B
24- C
25- D
26- E
 
shivers20 said:
How does the number 4 and 72 both equal the letter I ?
How are you finding correspondences if you don't know how the code works...? What method are you using...?

A frequency table can be helpful in this decoding, if you know how to use it. But this requires knowledge that you have made clear, above, that you do not have. We'll be glad to work with you, using whatever method you have chosen or been given, but you'll need to tell us what that is.

Note: To learn what this cipher is (in historical terms), try doing a web search. You may also find this archived "sci.crypt" discussion to be helpful. (After you've read some articles from your web search, their discussion should make some degree of sense; in particular, you will then understand how a frequency table could come into play.) You may also want to watch this other duplicate thread.

After you've done the above research, so you have the necessary background to proceed, please reply with your frequency table and a clear explanation of your work and reasoning so far. Thank you! :D

Eliz.
 
I found this after reading about the Mexican Army cipher and googling a sample to try myself against.

to division headquarters.
enemy attacks make movement fdom this posiwion impossible.
advise.
jones


Took me about 30 minutes to crack without much trouble using a basic spreadsheet to sub the letters for the numbers. I did a quick frequency analysis by hand, but didn't really need it.

I'm curious about the two spelling mistakes. Perhaps they are there to trip up people using this site for their homework? (It's years ago now - it's long since been passed or failed!)
 
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