An authentication question

[Jack Lloyd]

On Mon, 5 Aug 2002, Matthew Byng-Maddick wrote:

> On Mon, Aug 05, 2002 at 04:44:28PM -0400, Jack Lloyd wrote:
> > In the second version, any random user (or script) could upload very large
> > files, wasting your bandwidth, and also CPU time when you check the sig. Or
> > lots and lots of really small files, which would swamp your CPU(s) trying
> > to check 500 sigs a second (makes for a good DDOS).
>
> public key operations are significantly faster than private key ones. So it
> is far easier to check 500 sigs than to generate them in the first place.

Depending on the algorithm. RSA yes. DSA no.


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