[hashcash] Re: hashcash wish list

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2 more wish list items...

1) if there is a config file(s), and a message is being sent on stdin, a blacklist would be nice... just in case one winds up on a mailing list of "special offers" and they use hashcash... of course a blacklist, in this context, would only mean that the stamp is not accepted (hashcash -c returns !0)... the message may still be subject to other filtering, but these messages (in most settings) don't bypass the spam filter.

        ~/.hashcash/blacklist:
        ## mailing list thinks there legitimate marketing
        ^from: *special-offers*
        ## my crazy uncle who fwd's me bad jokes
        ^from: *crazy-uncle@xxxxxxx*

whether such a blacklist only looks at headers is debatable... the option of using headers and/or body would be great, but *probably* overkill.

2) at some point, v1 (or later) will (hopefully) be widely used, and v0 will be a historical footnote. there should be an option (command line and/or config file) to determine what version stamps are accepted. if a v1 version of hashcash accepts v0 stamps, there's no way to prevent someone from "getting lucky" with 1-2 extra bits (and who knows what later versions will improve on?). what version of stamps are accepted should be determined by the user.


    ...atom

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