Net: So, it looks like closed-group filesharing will be appearing in
several more implementations soon. NTK
writes this week, ‘the big new (yet old) killer app this year is going to
be a some dinky little program that lets you easily and selectively share
individual files with groups and sub-groups of your friends.’
It’s interesting to see this — it’s been several years in the offing. So
far, there seems to be two main angles: secure collaboration in a private
workgroup, and private filesharing in a closed group, defined
socially (I’ve taken to calling this the ‘playgroup’ ;).
Groove is an example of the ‘workgroup’
idea. However, to my mind it’s been crippled by a strict one-platform
policy, and possibly because it’s proprietary, commercial software.
Still, nice idea.
Several MS researchers helped kickstart the ‘playgroup’ idea with this
paper: The Darknet and
the Future of Content Distribution. Clay Shirky’s
thoughts.
WASTE is the classic
implementation of a ‘playgroup’ darknet, sadly killed off due to ownership
issues. NTK state that it ‘was
too crypto-tastic to succeed’, but I don’t see that — it was actually
excellent software; in particular, its entirely-decentralised and
public-key-crypto-based architecture worked surprisingly well in practice,
even with NAT, firewalls and all that problematic stuff.
More of the up-and-coming projects — at least the ones that intend to
take heed of ‘playgroup’ needs — need to take cues from this app. The
only negative in their approach is that the ‘gating’ of new members is too
relaxed; all it takes is for one existing member to accept them into the
group, their public key is flooded out to all, and pretty much everyone
is set to accept the new key by default.
Robert Kaye has written about
his thoughts on how this all should work in this
ETCON presentation and this
O’Reilly Network article. I’m not sure that a loosely-coupled
SSH-based system is easily deployable, though; IMO an ‘all-in-one’ app is
easier to get installed and deployed.
iFolder is Novell’s new tool in development. This sounds pretty
interesting, although it seems very strongly workgroup-oriented,
as does Foldershare, a new
Windows-only app from some ‘ex-AudioGalaxy staffers’, apparently.
Both operate by using some kind of file-sync algorithm, along the lines of
rsync or Unison, to synchronise
multiple copies of a dir across a network. (Here’s hoping it’s up to the
standard of Unison.) So very large collections will be duplicated
throughout the net — which may actually be quite cool for backups, but
strikes me as bad news for users on slow links.
And finally, there’s Clevercactus
Share — this sounds interesting, is cross-platform, and is now in
beta, apparently. Haven’t seen it, though ;)
So far, techie details on the internals of the latter three systems are
scant; it’ll be interesting to see how heavily they tilt towards the
‘workgroup’, how well they deal with firewalls and NAT, the extent
of crypto use, etc. But nice to see more software entering the
field…
Tags: app, darknet, group, idea, key, net, ntk, playgroup, software, the, workgroup
