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Re: How do you stop outgoing spam?
- From: Vadim Antonov
- Date: Tue Sep 10 16:36:58 2002
On Tue, 10 Sep 2002, Iljitsch van Beijnum wrote:
> Or we throw out SMTP and adopt a mail protocol that requires the sender to
> provide some credentials that can't be faked. Then known spammers are easy
> to blacklist.
The "credentials that can't be faked" is a rather hard to implement
concept. Simply because there's no way to impose a single authority on
the entire world. The question is whom to trust to certify the sender's
authenticity? I have correspondents in parts of the world where I'd be
very reluctant to trust "proper" authorities. I'd be so very easy to
silence anyone by _not_ issuing credentials.
Besides, anonymous communication has its merits. So what's needed is
zero-knowledge authentication and Web-of-trust model. And don't forget
key revocation and detection of fake identity factories. Messy, messy,