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Challenge "A modified homophonic cipher with reduced alphabets — Part 1"

Challenge "A modified homophonic cipher with reduced alphabets — Part 1"  

  By: admin on Oct. 21, 2010, 4:19 p.m.

Homophonic substitution using 3 ciphertext characters for a binary cleartext alphabet. This challenge can be solved with paper & pencil.
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 Last edited by: admin on Oct. 31, 2021, 2:54 a.m., edited 3 times in total.

Re: Challenge  

  By: e195633 on Jan. 9, 2014, 2:41 a.m.

Can you explain how to enter the answer in 0,1 format? I mean do we have to use spaces?

Re: Challenge  

  By: aurelie on Jan. 13, 2014, 11:48 a.m.

Can you explain how to enter the answer in 0,1 format? I mean do we have to use spaces?[/quote:2ucndtoi]

Hello,

The solution consists only of zeros and ones. Do not use any other characters. It could be]

I hope you can solve this challenge!

Re: Challenge  

  By: e195633 on Jan. 29, 2014, 2:42 p.m.

I have calculated the frequencies of the bigrams and changed the binary string to match the given frequencies but still my answer is wrong. Do I miss something else?

Re: Challenge  

  By: Garnet on April 28, 2016, 2:45 p.m.

Hello, I think I dont understand this chalange clearly. Can someone help me with it? When 0 is x or y and 1 is z, why the solution are not the letters changed for appropriate numbers. (0 for every x and y, 1 for every z)?

Re: Challenge  

  By: Bart13 on April 29, 2016, 1:08 a.m.

Hi Garnet,

'0' replacing by 'x' or 'y' and '1' replacing by 'z' is an example.
You have to find out by which character(s) '0' was replaced and by which character(s) '1' was replaced.

I hope this clears things up.

Re: Challenge  

  By: Garnet on April 29, 2016, 3:34 p.m.

Hi Garnet,

'0' replacing by 'x' or 'y' and '1' replacing by 'z' is an example.
You have to find out by which character(s) '0' was replaced and by which character(s) '1' was replaced.

I hope this clears things up.

Yeah now I understand better where is the problem in my solution. Thank you. I hope I will solve this challenge in no time now.


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