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https://issues.apache.org/jira/browse/ACCUMULO-1009?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13739146#comment-13739146
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Michael Berman commented on ACCUMULO-1009:
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Another outstanding issue is that the mechanism by which mapreduce jobs are 
distributed to tasktrackers is a man-in-the-middle-able vector.  I'm not sure 
how to address that besides making the location the client looks for 
truststores completely unconfigurable from the job config.  At the moment, you 
can't inject novel trust along the wire, but if you have write access anywhere 
on the tasktracker node, you could point the tasks to a local truststore of 
your choosing.  What do people think?  Would keeping the trusted roots on HDFS 
be any better?  Should you be able to configure where truststores are allowed 
to be loaded from? (although not through job config, of course)  Better ideas?
                
> Support encryption over the wire
> --------------------------------
>
>                 Key: ACCUMULO-1009
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-1009
>             Project: Accumulo
>          Issue Type: New Feature
>            Reporter: Keith Turner
>            Assignee: Michael Berman
>             Fix For: 1.6.0
>
>         Attachments: ACCUMULO-1009_thriftSsl.patch
>
>
> Need to support encryption between ACCUMULO clients and servers.  Also need 
> to encrypt communications between server and servers.   
> Basically need to make it possible for users to enable SSL+thrift.

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