[freehaven-dev] We have secret sharing.

[dmolnar@belegost.mit.edu]

in /usr/home/dmolnar/crypto30 : 

-rw-r--r--   1 dmolnar  freehave       43 Mar 17 16:28 testbreak
-rw-r--r--   1 dmolnar  freehave       48 Mar 17 16:29 testbreak.00
-rw-r--r--   1 dmolnar  freehave       48 Mar 17 16:29 testbreak.01
-rw-r--r--   1 dmolnar  freehave       48 Mar 17 16:29 testbreak.02
-rw-r--r--   1 dmolnar  freehave       48 Mar 17 16:29 testbreak.03
-rw-r--r--   1 dmolnar  freehave       48 Mar 17 16:29 testbreak.04
-rw-r--r--   1 dmolnar  freehave       48 Mar 17 16:29 testbreak.05
-rw-r--r--   1 dmolnar  freehave       48 Mar 17 16:29 testbreak.06
-rw-r--r--   1 dmolnar  freehave       48 Mar 17 16:29 testbreak.07
-rw-r--r--   1 dmolnar  freehave       48 Mar 17 16:29 testbreak.08
-rw-r--r--   1 dmolnar  freehave       48 Mar 17 16:29 testbreak.09


testbreak is a small text file I made up. I used 
/usr/home/dmolnar/cryptest to break it into 10 pieces, any 5 of which
should reconstruct. I managed to successfully reconstruct using 
shares 00-05. (yes, that's six shares. I wasn't thinking) 

You'll notice that all the shares are the same size (roughly) as the
original file. That's what I will work on next - moving from secret
sharing to IDA with share sizes smaller than entire file. 

In the meantime, run /usr/home/dmolnar/cryptest to see the interface for
breaking a file into pieces and reconstructing. 

Thanks, 
-David