[Cryptography] [cryptography] Secure universal message addressing

[John Levine]

>> The idea of private per-correspondent addresses for message security
>> is very old.  See for example the Zoemail patent, US patent 5,930,479
>> which was filed in 1996 and issued in 1999.  It doesn't expire until
>> October, and has been asserted in at least one lawsuit (I was the
>> defandant's technical expert) so take a look.

...

>That would work with exactly the same kind of spam-dynamics etc.
>we have now.  But it would only apply to people who wanted it
>to apply to them, and only for as long as they wanted it to
>apply to them.  And anybody who contacted them via that address
>would acquire a new address for them in the course of the
>protocol, so cutting it short wouldn't cut off people who'd
>already contacted you with it - all the ones you'd already
>replied to would already have a personal address for you.

Yeah, that's how Zoemail worked.  Better not reimplenent it
until October.

R's,
John