
 Cryptography article  Cryptography Greek information encryption secrecy communications spies military  WhatMeans.com (Site not responding. Last check: 20071107) 
  Cryptography (from Greek kryptós, "hidden", and gráphein, "to write") is, traditionally, the study of ways to convert information from its normal, comprehensible form into an incomprehensible format, rendering it unreadable without secret knowledge — the art of encryption. 
  Nowadays the emphasis has shifted, and cryptography makes extensive use of technical areas of mathematics, notably number theory, information theory, computational complexity, statistics and finite mathematics. 
  Cryptography article  Cryptography definition  what means Cryptography 
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