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The result of cryptanalysis is always a total break given enough time.
True
False
Cryptanalyst given enough time and resources will be successful over many cryptosystems, although with todays strongest encryption methods could take many, many years. More likely are levels of partial knowledge success as weaker to stronger encryption is applied, and some ciphers, like messages encrypted with a one-time pad, are provably unbreakable. For every ciphertext encrypted under one-time pad, there is a possible key to transform it back into any possible plaintext of the given length. See https://en.wikipedia.org/wiki/One-time_pad
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