[tahoe-lafs-trac-stream] [tahoe-lafs] #865: Document current crypto and encoding in detail

[tahoe-lafs]

#865: Document current crypto and encoding in detail
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     Reporter:  davidsarah     |      Owner:  ioerror
         Type:  task           |     Status:  new
     Priority:  major          |  Milestone:  eventually
    Component:  documentation  |    Version:  1.5.0
   Resolution:                 |   Keywords:  docs security
Launchpad Bug:                 |
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Description changed by zooko:

Old description:

> Other than the code, the most comprehensive description of Tahoe's
> current crypto and erasure encoding that I'm aware of is the ''Storage
> Security and Survivability Workshop 2008'' paper:
> http://allmydata.org/~zooko/lafs.pdf. However, that paper does not give
> the level of detail required for a spec or for a thorough security
> analysis (for example, it doesn't specify encryption modes or the
> encoding of inputs to crypto primitives).
>
> This is an obstacle to designing the new crypto, since we don't want to
> lose features (unless we drop them deliberately) or make mistakes that
> were avoided in the original design.

New description:

 Other than the code, the most comprehensive description of Tahoe's current
 crypto and erasure encoding that I'm aware of is the ''Storage Security
 and Survivability Workshop 2008'' paper: http://tahoe-
 lafs.org/~zooko/lafs.pdf. However, that paper does not give the level of
 detail required for a spec or for a thorough security analysis (for
 example, it doesn't specify encryption modes or the encoding of inputs to
 crypto primitives).

 This is an obstacle to designing the new crypto, since we don't want to
 lose features (unless we drop them deliberately) or make mistakes that
 were avoided in the original design.

--

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Ticket URL: <http://tahoe-lafs.org/trac/tahoe-lafs/ticket/865#comment:7>
tahoe-lafs <http://tahoe-lafs.org>
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