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  • Originally posted by Kuang
    Just a thought - doesn't foursquare require the ciphertext to be an even number of characters long? This one is 65, which would suggest bifid or trifid, and therefore a single key.
    Not really sure about it, but I read in some page about four-square that if the number of letters in the text is odd, a random letter must be appended. So perhaps we can't discard four-square yet

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    • I read the message again ! and satyr tells us ' and remember to think around the box'
      It looks like a hint or something!!!
      what do you think of it?
      The Buggers are safe when I play at Gamershood!

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      • Originally posted by Cunn
        ..a random letter must be appended..
        Would it be appended by the creator or the receiver though? If the former, it should already have been even.

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        • Originally posted by ender
          I read the message again ! and satyr tells us ' and remember to think around the box'
          It looks like a hint or something!!!
          what do you think of it?
          Well, maybe that box hint is only related to box-ciphers, and bifid and four-square are that type of ciphers I think. So probably we already have the info that the box-hint was trying to give us, and we may need something more

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          • Originally posted by Kuang
            Just a thought - doesn't foursquare require the ciphertext to be an even number of characters long? This one is 65, which would suggest bifid or trifid, and therefore a single key.
            That's exactly what i thought. I tried this doing well beforehand and thought to myself that this can't be right, anything (obviously in this case squares) multiplied by 4 implies having an even number of characters, and so i tried the bifid and trifid ciphers without success because i didn't know the keyword.

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            • Originally posted by Kuang
              Would it be appended by the creator or the receiver though? If the former, it should already have been even.
              Yes, you are right. I went through that page again and it sais "to encipher... a random letter must be appended" if the number of letters is odd.
              So the ciphertext must always be even, as it seems.
              It's good news, because a bifid-cipher online decoder is available at: http://www.apprendre-en-ligne.net/cr...elastelle.html
              but we still need the keyword

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              • in this page of the link you can choose vertical or horizontal construction.
                The Buggers are safe when I play at Gamershood!

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                • sorry must leave!
                  Biarritz 's waiting for me! I'll be back in 80mn. good luck!!
                  The Buggers are safe when I play at Gamershood!

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                  • Originally posted by ender
                    sorry must leave!
                    Biarritz 's waiting for me! I'll be back in 80mn. good luck!!
                    GORA BIARRITZ!! GORA EUSKAL HERRIA!!

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                    • The applet on that french page seems to be coming out with nonsense - examine the grille and the results for yourself and see what I mean. It may just be that I can't read french and so don't understand the nature of the applet fully, but it looks conclusively screwed from here The second link isn't for a bifid cipher as far as I can tell.

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                      • Actually, scratch that - I've realised I was reading it wrong

                        Having said that I've found another applet that gives completely different results for the same settings, sooo....

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                        • Originally posted by Kuang
                          The applet on that french page seems to be coming out with nonsense - examine the grille and the results for yourself and see what I mean. It may just be that I can't read french and so don't understand the nature of the applet fully, but it looks conclusively screwed from here The second link isn't for a bifid cipher as far as I can tell.
                          Well, the applet works allright for me... you have to type the ciphertext in the last box (labeled message chiffr?), and the plaintext should appear in the first one (message clair). Of course, only when having the "clef" (keyword).
                          Try the example given in the page: EETDY TYDBQ RUDEB SRRGE ESMDL PJNPL AEAAR EIEYG APCUB MMTXJ TLZQX LVIOY LITER IJECO IZZFF, with the keyword "recueillement", and see that it works, even if the plaintext will be in french.
                          The grille changes with every keyword, of course.
                          And yes, I agree, the second link from ender does not seem to be about a bifid cipher

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                          • Originally posted by Kuang
                            Actually, scratch that - I've realised I was reading it wrong

                            Having said that I've found another applet that gives completely different results for the same settings, sooo....
                            Well, that's bad news. We'll have to try them both, but only when we find the keyword. What link is that second applet?

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                            • Originally posted by Cunn
                              GORA BIARRITZ!! GORA EUSKAL HERRIA!!
                              french basque or spanish basque?
                              The Buggers are safe when I play at Gamershood!

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                              • Originally posted by ender
                                french basque or spanish basque?
                                Basque, only. But well, must say I'm from the south, so belonging to Spain. Not for long, though

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