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A comment on 200-year-old ciphers may reveal the location of treasure buried in Virginia. Parent comment

Re:200-year-old ciphers may reveal the location of treasure ... by yorwba on Sunday June 17, 2018 @10:51AM (#17332589)
It is true for any cipher, but remember that you are not allowed to reuse the key. If you are just scrambling the alphabet, you can never encrypt more than a single character without key reuse.
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