Computer Science / CS 0634 · Atom · ~20 seconds
The Transposition Cipher
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A transposition cipher rearranges plaintext characters rather than substituting them — writing a message vertically and reading it horizontally, for example — and the family is also called permutation ciphers.
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A message striped across rail cars and read down the train hides by arrangement alone.
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Every original character survives; only the order is the secret.
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- Nothing yet depends on this.