Cryptology

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	To oppose or discuss a nomination, please go to CZ:Proposed for deletion and follow the instructions. For the monthly nomination lists, see Category:Articles for deletion. Please create the "Talk page". Just click this Talk page link and save the page. Cryptology (the science of secrets, from Greek language|Greek]]) is the general term that encompasses both cryptography]] (the study of techniques for keeping secrets) and cryptanalysis]] (codebreaking, acquiring secrets without authorisation). The field has a long and interesting history, see History of cryptology]]. Cryptology provides the scientific background for a broad range of activities in signals intelligence]] and information security]]. Based on Claude Shannon]]'s definition of Information theory]] as the study of "communication in the presence of noise", Ron Rivest]] wrote: "Cryptology is about communication in the presence of adversaries". References