mta-hashcash

mta-hashcash@lists.lysator.liu.se

244 discussions

Reference list
by nisse＠lysator.liu.se 05 Oct '04

05 Oct '04

For convenience, I've put together an html-version of Linus' reference list, as well as links to our files etc, at http://www.lysator.liu.se/~nisse/misc/mta-hashcash.html The files are also in the doc-directory in the cvs, feel free to add more references, or comment on the scope and relevance of the documents. Updating the files on the web requires a manual cvs update && make install-www WWWDIR=webdir on the right machine, so prod me whenever the www version seem out of sync. Regards, /Niels

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Re: Test-implementation
by nisse＠lysator.liu.se 04 Oct '04

04 Oct '04

Linus Nordberg <linus(a)nordberg.se> writes: > nisse(a)lysator.liu.se (Niels Möller) wrote > 28 Sep 2004 09:16:35 +0200: > > | resource bör nog innehålla avsändare och mottagare (från > | smtp-kuvertet) och slumpmässigt salt (som bestäms av servern). > > Behöver vi plocka isär resource igen, tro? I sådana fall behöver vi en > separator mellan komponenterna. Inte ':'. Some answers to related questions: * The client must check that the resource string is … [View More]

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Re: Avskräckt?
by nisse＠lysator.liu.se 04 Oct '04

04 Oct '04

Linus Nordberg <linus(a)nordberg.se> writes: > http://www.cl.cam.ac.uk/users/rnc1/proofwork.pdf Now I've read that article. I didn't really try follow all the juggling and hand-waving with numbers. As I understand the conclusions, these are the important points as they apply to us: 1. We must be prepared to use challenges that take several minutes to solve. 2. To make things work for legitimate email, one must use a some "hybrid system" where hash-cash is used only … [View More]

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Sharing databases
by Linus Nordberg 30 Sep '04

30 Sep '04

Earlier, when thinking about aliases, we discussed the risk of having to come up with some mechanism for sharing key/correspondent databases between MTA's. There's another reason to discuss that, namely sites that use separate MTA's for sending and receiving and/or have more than one sending/receiving MTA. Large sites probably have lots of both. Smaller sites might have a setup with one host in some DMZ or similar, receiving all mail and then forwarding it to some internal host that's not … [View More]

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mta-hashcash