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https://issues.apache.org/jira/browse/ORC-14?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16499540#comment-16499540
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Owen O'Malley commented on ORC-14:
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I've uploaded a presentation on ORC Column Encryption - 
https://www.slideshare.net/oom65/orc-column-encryption-100324647

> Add column level encryption to ORC files
> ----------------------------------------
>
>                 Key: ORC-14
>                 URL: https://issues.apache.org/jira/browse/ORC-14
>             Project: ORC
>          Issue Type: New Feature
>            Reporter: Owen O'Malley
>            Assignee: Owen O'Malley
>            Priority: Major
>         Attachments: columnEncryption.png
>
>
> 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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