[tahoe-lafs-trac-stream] [tahoe-lafs] #393: mutable: implement MDMF

[tahoe-lafs]

#393: mutable: implement MDMF
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     Reporter:  warner        |       Owner:  kevan                                                                                                                 
         Type:  enhancement   |      Status:  assigned                                                                                                              
     Priority:  major         |   Milestone:  1.9.0                                                                                                                 
    Component:  code-mutable  |     Version:  1.0.0                                                                                                                 
   Resolution:                |    Keywords:  newcaps performance random-access privacy gsoc mdmf mutable backward-compatibility forward-compatibility review-needed
Launchpad Bug:                |  
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Comment (by warner):

 I got about halfway through the review this weekend. Nice work! I've
 uploaded the merge work that I did, that -36 dpatch should apply cleanly
 to trunk and pass all tests. I have a bunch of tiny cleanup issues that
 can wait until after we land this. Apart from the two things mentioned
 above, I haven't seen any major blockers. Really, this is an excellent
 patch.

 I can't quite figure out how the MDMF salts are handled, though. I can see
 that they're stored right in front of each data block, but the code (at
 least layout.py, and the parts of publish.py that I've read so far) don't
 make it clear how their validated. There's talk of a "salt hash tree", but
 I can't find any code that manages it. Any hints?

-- 
Ticket URL: <http://tahoe-lafs.org/trac/tahoe-lafs/ticket/393#comment:72>
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