Possible NSA Decryption Capabilities

Published: Feb 27, 2000
Updated: Feb 27, 2000
Section: Network Security Library :: Cryptography
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This document estimates the possible capabilities of the NSA in breaking certain types of cipher by exhaustive key search. It is a theoretical document, and only covers technical ability: in many cases the NSA will use alternative methods to break target cipher systems. The aim of this document is to give some estimates for the security of certain key lengths for some symmetrical (block) ciphers.

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