If you want a formal introduction to cryptography, you should read An Introduction to Mathematical Cryptography. They also use a lot of time looking for security holes in existing protocols to make sure they can still be trusted. ![]() From Greek κρύπτω krýpto "hidden" and the verb γράφω gráfo "to write" or λέγειν legein "to speak".Ĭryptography is the practice of establishing a secure connection between two parties in the presence of a third party whom you don't want to be able to read your messages.Ĭryptographers design algorithms and protocols, which do exactly this (and many other things).
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