[Asrg] Re: 3. Proof-of-work analysis

[Adam Back <adam at cypherspace.org>]

Jonathan Morton wrote:
> That leaves one big category:  Web Mail.  The likes of Hotmail and Yahoo
> don't charge for sending e-mail from their systems, except perhaps in
> terms of banner ads.  They also handle ginormous amounts of said mail,
> which could make a proof-of-work switch-on relatively difficult for
> them.  However, most of their clients are low-end home users, who, on
> average, may have relatively favourable contact patterns.  For this, we
> could do with more statistics.

There is also possibility of the senders browser computing the token.  See:

http://www.lapo.it/HashCash.html

Adam



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