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From "Larry McCay (JIRA)" <>
Subject [jira] [Commented] (HIVE-4227) Add column level encryption to ORC files
Date Thu, 05 Sep 2013 15:05:53 GMT


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:
>             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

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