Mathematics

Block cipher: a recently approved encyclopedic article at Citizendium

The article Block cipher at the Citizendium has recently been approved, and since I found it a pleasant read and it is licensed CC-BY-SA, I paste it in below. Unfortunately, some of the formatting (particularly the references and equations) did not survive the transplant, so if anyone knows of a tool for publishing from a wiki to Drupal, I would appreciate a hint.


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