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https://issues.apache.org/jira/browse/HIVE-4227?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13759139#comment-13759139
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Larry McCay commented on HIVE-4227:
-----------------------------------

I am in the process of reworking the patch for HADOOP-9534 Credential 
Management Framework in order to support accessing keying material for this 
issue. Current thinking is that CMF can abstract the source of keys and be 
leveraged across a number of different crypto and password protection usecases 
in the Hadoop ecosystem. This is why it is being done in Hadoop rather than 
Hive. We will want to also align it's use with HADOOP-9331 - since 9331 will be 
leveraged in here as well as for the cryptoFS, etc.

Will provide a description of the DDL/metastore and column store changes that 
will be needed to support the column level encryption once I have it written up.
                
> Add column level encryption to ORC files
> ----------------------------------------
>
>                 Key: HIVE-4227
>                 URL: https://issues.apache.org/jira/browse/HIVE-4227
>             Project: Hive
>          Issue Type: New Feature
>          Components: File Formats
>            Reporter: Owen O'Malley
>              Labels: gsoc, gsoc2013
>
> It would be useful to support column level encryption in ORC files. Since 
> each column and its associated index is stored separately, encrypting a 
> column separately isn't difficult. In terms of key distribution, it would 
> make sense to use an external server like the one in HADOOP-9331.

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