[Cryptography] Silly Diffie-Hellman question using XOR

Brian M. Waters brian at brianmwaters.net
Thu Mar 6 05:44:18 EST 2014


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On 03/05/2014 13:50, Hanno Böck wrote:
> Honestly, if you didn't see this, you shouldn't even dare to
> invent any crypto yourself.
> 
> And rule of thumb: If you make up your own algorithm, it's broken.
>  Exceptions only if you are super-intelligent and have studied 
> number theory for years.

I wish we could get away from this attitude, at least somewhat.

Sure, someone who's not an expert should never invent their own crypto
*and actually use it.* But if we continue to discourage building
(which is half of building and breaking), who will the next generation
of experts be?

And, perhaps a better measure of expertise is not
"super-intelligence," but a person's track record of building and
breaking crypto.

Granted, Stuart's track record is not looking so hot right now ;)

Keep at it bud. Just remember that security is a meritocracy.

BW

- -- 
Brian M. Waters
+1 (908) 380-8214
brian at brianmwaters.net
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