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Answer Posted / pugal
A cryptosystem or cipher system is a method of disguising
messages so that only certain people can see through the
disguise. Cryptography is the art of creating and using
cryptosystems. Cryptanalysis is the art of breaking
cryptosystems---seeing through the disguise even when
you're not supposed to be able to. Cryptology is the study
of both cryptography and cryptanalysis.
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