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From "Michael Allen (JIRA)" <>
Subject [jira] [Commented] (ACCUMULO-958) Support pluggable encryption in walogs
Date Fri, 25 Jan 2013 21:33:13 GMT


Michael Allen commented on ACCUMULO-958:

I've implemented a fairly generic, fairly pluggable encryption streaming architecture (see for classes and interfaces).  It might change as
we figure out more of our requirements in this area, which is why the primary interface is
already marked deprecated, even though this is the first iteration.  (Is there a better Apache-style
marking for that kind of thing?)  

The encryption stream right now is only attached to the WAL logs, but could be wired up to
RFiles and Map files without too much more trouble.

Submitting patch now.
> Support pluggable encryption in walogs
> --------------------------------------
>                 Key: ACCUMULO-958
>                 URL:
>             Project: Accumulo
>          Issue Type: Improvement
>          Components: logger
>            Reporter: John Vines
>            Assignee: John Vines
>             Fix For: 1.5.0
> There are some cases where users want encryption at rest for the walogs. It should be
fairly trivial to implement it in such a way to insert a CipherOutputStream into the data
path (defaulting to using a NullCipher) and then making the Cipher pluggable to users can
insert the appropriate mechanisms for their use case.
> This also means swapping in CipherInputStream and putting in a check to make sure the
Cipher type's match at read and write time. Possibly a versioning mechanism so people can
migrate Ciphers.

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