what is killing PKI?

[Robert J. Hansen]

On 10/4/2012 9:12 PM, Landon Hurley wrote:
> Won't the overhead from running gpg or equivalent limit the amount of
> spam that will occur afterward anyway? The whole reason that spam works
> and is profitable is in the agreggate of millions of messages. If I
> introduce a .5 second latency, that undermines the whole economic
> incentive, because I can no longer send messages quickly enough. Or am I
> overestimating the time it takes to run a single message through
> 1024-bit RSA with SHA1?

The task is parallelizable, and botnets are large.