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- Science of creating and reading codes; for
- example, those produced by the Enigma coding
- machine used by the Germans in World War II
- (as in Ultra) and those used in commerce by
- banks encoding electronic fund-transfer
- messages, business firms sending
- computer-conveyed memos between headquarters,
- and in the growing field of electronic mail.
- No method of encrypting is completely
- unbreakable, but decoding can be made
- extremely complex and time consuming.
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