[Cryptography] RC4 again (actual security, scalability and other discussion)

[Miroslav Kratochvil]

> This entire discussion is premised on falsehoods.

well, okay :]

There are two possible ways to deal with this fact: (1) Keep adding
> complexity to your design until you do not see how to break it; or (2)
> _simplify_ your design untl it is provably secure, based on minimal
> assumptions, against "unrealistically" powerful attackers.
>
>
Good point. Do you know about any symmetric cipher that is _provably_
secure?

Only one I know about is SYND that has been proven to reduce to (NP-Hard)
syndrome decoding problem.

http://www.unilim.fr/pages_perso/philippe.gaborit/isit_synd_rev.pdf

I actually have no idea why I have ignored it so far. :D

Thanks for the opinion :]
-mk
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