notes-computer-bitcoin

Difference between revision 18 and current revision

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todo, put more stuff here

information-theoretically security: if you don't know the password, you can't decrypt the message, because for every potential value of the message's unencrypted content, there is some password that would lead to the message being decrypted to that value

computational security: in theory you could brute-force the decryption, but this would take so long that this would be infeasible (like, we're usually talking lifetime-of-the-universe durations of time here). Usually this is adulterated to "computational security assuming some mathematical propositions that are as yet unproven but widely thought to be true, such as P != NP".

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