Permutation

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A very simple form of Cryptography is based on Permutation. We only use A-Z in this example, because it is easier to read for us.

Jack uses the secret key "awesomeness". We remove all duplicate chars from the key and get "awesomn". We start at a and fill the rest with the remaining chars in alphabetic order.

a b c d e f g h i j k l m n o p q r s t u v w x y z
a w e s o m n b c d f g h i j k l p q r t u v x y z

The word "extraordinary" would be "oxtlajtsckapy" in per-mutated form.

Published at , Updated at 2011-10-25

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