Bifid cipher: Difference between revisions
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Added Uiua solution |
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</pre> |
</pre> |
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=={{header|Uiua}}== |
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===Standard=== |
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The following just uses the standard version of the cipher. |
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<syntaxhighlight lang="uiua"> |
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S ← "ABCDEFGHIKLMNOPQRSTUVWXYZ" |
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P ← ↯⊟.√⧻.S |
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Prep ← ▽∊:S.∧⍜⊡⋅@I⊚⌕@J.⌵ |
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Bifid ← setinv( |
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⊡:⟜(↯∞_2/⊂⇌⍉≡(⊢⊚⌕)Prep:¤)P |
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| ⊡:⟜(⍉⇌↯2_∞/⊂≡(⊢⊚⌕):¤)P |
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) |
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°Bifid.Bifid. "This is it" |
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°Bifid.Bifid. "The invasion will start on the first of January" |
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</syntaxhighlight> |
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{{out}} |
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<pre> |
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"This is it" |
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"SSSTRIII" |
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"THISISIT" |
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"The invasion will start on the first of January" |
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"SYLCTMQCQISSVROQQPBTFHVRNWNTDSOFGTSGCQU" |
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"THEINVASIONWILLSTARTONTHEFIRSTOFIANUARY" |
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</pre> |
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===Extended=== |
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26 letters and 10 digits = 36 chars, so that's the obvious extension. Plus super-security is guaranteed by adding the use of a codeword in the grid :-) |
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<syntaxhighlight lang="uiua"> |
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S ← "GLYPHABCDEFIJKMNOQRSTUVWXZ0123456789" |
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P ← ↯⊟.√⧻.S |
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Prep ← ▽∊:S.⌵ |
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Bifid ← setinv( |
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⊡:⟜(↯∞_2/⊂⇌⍉≡(⊢⊚⌕)Prep:¤)P |
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| ⊡:⟜(⍉⇌↯2_∞/⊂≡(⊢⊚⌕):¤)P |
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) |
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°Bifid.Bifid. "This is it" |
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°Bifid.Bifid. "The invasion will start at 0600 on the 1st of January" |
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</syntaxhighlight> |
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{{out}} |
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<pre> |
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"This is it" |
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"O556REEE" |
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"THISISIT" |
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"The invasion will start at 0600 on the 1st of January" |
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"OWV58W5CQY6MM1OUD2AU4NLDRSMSGUPRV80NL1TDYRR" |
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"THEINVASIONWILLSTARTAT0600ONTHE1STOFJANUARY" |
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</pre> |
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=={{header|Wren}}== |
=={{header|Wren}}== |
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One way of enabling all 26 letters to be encrypted uniquely would be to use a 6 x 6 Polybius square including the 10 digits. We could then encrypt text using numerals as well. |
One way of enabling all 26 letters to be encrypted uniquely would be to use a 6 x 6 Polybius square including the 10 digits. We could then encrypt text using numerals as well. |
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