Re: why penny black etc. are not very useful (could crypto stop spam??)

2004-01-02 Thread Amir Herzberg
At 17:38 30/12/2003, Perry wrote: In my opinion, the various hashcash-to-stop-spam style schemes are not very useful, because spammers now routinely use automation to break into vast numbers of home computers and use them to send their spam. They're not paying for CPU time or other resources, so

Re: why penny black etc. are not very useful (could crypto stop spam??)

2004-01-02 Thread john saylor
hi Amir Herzberg wrote: E-mail (at least from new correspondents) must be signed by an `anti-spam mail certification authority (ASMCA)` - often the ISP of the sender. Recipient's mail client (or server) will reject mail (from new correspondents) not certified by a trustworthy ASMCA. ok, but

Re: why penny black etc. are not very useful (could crypto stop spam??)

2004-01-02 Thread Victor . Duchovni
On Thu, 1 Jan 2004, Amir Herzberg wrote: IMHO, your conclusion is wrong: cryptographic authentication could be a critical tool to stop spam; someone in our community should do this (write the software) already... How? E-mail (at least from new correspondents) must be signed by an `anti-spam