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What kind of cipher is this?; ?
Topic Started: Jan 20 2014, 09:43 PM (314 Views)
tetragrammaton
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This is a cipher that I have devised. In spite of the large key is very easy to recreate from memory. The pic only shows the polyalphabetic bi litteral aspect. I usually convert the bi-litteral subs into single letters with substitution. My cryptanalysis program labels the ciphertext as a running key algorithm. Does anyone know if this is correct?
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tetragrammaton
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Sometimes I use columnar transposition on the resulting ciphertext.
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