Vigenere Square Cipher Builder | Free!
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ABCDEFGHIJKLMNOPQRSTUVWXYZAAABAC
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1) Start by making a copy of this Building by clicking one of:
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File->Make a Copy
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File->Download as->Microsoft Excel (.xlsx)
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2) Enter your plaintext message in the top row of the copy.
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3) Enter a Keyword in the 2nd row (just repeat until the row is full)
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4) Encode the first first letter of your message by highlighting it's column. E.g. "T"
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5) Then, also select the row that starts with the first letter of your keyword. E.g. "p"
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5) Type whichever letter intersects both into the Encoded Message Row. E.g. "I"
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Click here for the Full Cipher Guide from lockpaperscissors.co
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Messagethecodeisblue
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Keywordpaperpaperpaperpaperpaperp
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Encoded MessageAHTDGSEXWSAUT
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ABCDEFGHIJKLMNOPQRSTUVWXYZ
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AABCDEFGHIJKLMNOPQRSTUVWXYZ
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BBCDEFGHIJKLMNOPQRSTUVWXYZA
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CCDEFGHIJKLMNOPQRSTUVWXYZAB
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DDEFGHIJKLMNOPQRSTUVWXYZABC
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EEFGHIJKLMNOPQRSTUVWXYZABCD
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FFGHIJKLMNOPQRSTUVWXYZABCDE
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GGHIJKLMNOPQRSTUVWXYZABCDEF
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HHIJKLMNOPQRSTUVWXYZABCDEFG
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IIJKLMNOPQRSTUVWXYZABCDEFGH
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JJKLMNOPQRSTUVWXYZABCDEFGHI
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KKLMNOPQRSTUVWXYZABCDEFGHIJ
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LLMNOPQRSTUVWXYZABCDEFGHIJK
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MMNOPQRSTUVWXYZABCDEFGHIJKL
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NNOPQRSTUVWXYZABCDEFGHIJKLM
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OOPQRSTUVWXYZABCDEFGHIJKLMN
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PPQRSTUVWXYZABCDEFGHIJKLMNO
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QQRSTUVWXYZABCDEFGHIJKLMNOP
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RRSTUVWXYZABCDEFGHIJKLMNOPQ
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SSTUVWXYZABCDEFGHIJKLMNOPQR
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TTUVWXYZABCDEFGHIJKLMNOPQRS
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UUVWXYZABCDEFGHIJKLMNOPQRST
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VVWXYZABCDEFGHIJKLMNOPQRSTU
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WWXYZABCDEFGHIJKLMNOPQRSTUV
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XXYZABCDEFGHIJKLMNOPQRSTUVW
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YYZABCDEFGHIJKLMNOPQRSTUVWX
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ZZABCDEFGHIJKLMNOPQRSTUVWXY
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