That would get extremely bulky in mass-adoption, in both local storage and network usage. Currently they have some structure to create tiered "streams", but that still doesn't eliminate the excessive network burden, it just saves some disk space. The streams work in a hierarchy, with the uppermost assuming the highest network burden. Because it's necessary to send an acknowledgement message, a complete circuit must established (though not all at once) between nodes. Also "broadcast messages" seem too risky to me. They're liable to be abused and cause a DoS if this protocol is adopted on a large-scale. Proof-of-work doesn't protect broadcast message abuse, because an attacker could just use a small botnet to generate a bunch of untransmitted messages with similar timestamps for a future date. Once that date arrives, then the attacker could just submit a very large batch of valid broadcast bitmessages. I can't think of a solution to either of these problems right now, but I otherwise think Bitmessage is a great idea. It's current, humbly sized userbase makes for comfortable testing. https://bitmessage.org/bitmessage.pdf James On 25 October 2013 01:41, Russ Nelson <nelson@crynwr.com> wrote:

I haven't seen any discussion of BitMessage (http://bitmessage.org) here yet. The idea is to be a mixer with a pool of recipients, which currently seems to be 12,000ish. Before anybody will receive your message, they need to see a proof of work. Once they do, they forward the message to everyone else, using a flood-fill algorithm. Messages are encrypted so only the recipient can decode them. Mailing lists are simulated via a shared private key.

It looks plausible. Not obviously snake oil.

-- --my blog is at http://blog.russnelson.com Crynwr supports open source software 521 Pleasant Valley Rd. | +1 315-600-8815 Potsdam, NY 13676-3213 | Sheepdog _______________________________________________ The cryptography mailing list cryptography@metzdowd.com http://www.metzdowd.com/mailman/listinfo/cryptography

_______________________________________________ The cryptography mailing list cryptography@metzdowd.com http://www.metzdowd.com/mailman/listinfo/cryptography