Army signals security & "Clansmen" series radios

[Ben Laurie]

David Howe wrote:
> 
> > Hmm. OpenSSL can do around 55 2048 bit public key operations per second
> > on my not-so-fast P2, so "ages" is, in fact, around 3 minutes. That
> > doesn't strike me as a serious problem.
> Bandwidth may be more of a factor than processor speed - and in fact,
> apparently the CPU load of SSL is a major factor in web site design -

That's because SSL requires the server to do a large number of _private_
key operations, which are hugely more expensive than the public key
operations needed for the scenario described.

Cheers,

Ben.

--
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