This is very valuable information to me, thanks a lot :) IDA or Erasure Coding is vital for secure cloud storage, keep privacy and fighting against censorship :)<br><br><div class="gmail_quote">On Thu, Feb 11, 2010 at 3:32 AM, David-Sarah Hopwood <span dir="ltr"><<a href="mailto:david-sarah@jacaranda.org">david-sarah@jacaranda.org</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"><div class="im"><a href="mailto:lambdaq@gmail.com">lambdaq@gmail.com</a> wrote:<br>
> Â does tahoe protocol implement something like Information Dispersal<br>
> Algorithms, like the stuff we used in RAID5 disks?<br>
<br>
</div>Yes, Tahoe uses a Reed-Solomon Forward Error Correction code:<br>
<<a href="http://www.usenix.org/events/fast/tech/full_papers/plank/plank_html/" target="_blank">http://www.usenix.org/events/fast/tech/full_papers/plank/plank_html/</a>><br>
<br>
("Information Dispersal Algorithm" is strictly speaking a specific FEC<br>
algorithm described in [Rabin1989], although that term is often used<br>
generically to mean any FEC.)<br>
<br>
<br>
[Rabin1989]<br>
 M. O. Rabin. "Efficient dispersal of information for security,<br>
 load balancing, and fault-tolerance." Journal of the ACM,<br>
 Vol 36 issue 2, April 1989, pp 225-348.<br>
 <<a href="http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.116.8657" target="_blank">http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.116.8657</a>><br>
<font color="#888888"><br>
--<br>
David-Sarah Hopwood  ⚥  <a href="http://davidsarah.livejournal.com" target="_blank">http://davidsarah.livejournal.com</a><br>
<br>
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<br></blockquote></div><br>