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https://issues.apache.org/jira/browse/HDFS-6134?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14034155#comment-14034155
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Owen O'Malley commented on HDFS-6134:
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Alejandro, this is *exactly* equivalent of the delegation token. If a job is
opening side files, it needs to make sure it has the right delegation tokens
and keys. For delegation tokens, we added an extra config option for listing
the extra file systems. The same solution (or listing the extra key versions)
would make sense.
> Transparent data at rest encryption
> -----------------------------------
>
> Key: HDFS-6134
> URL: https://issues.apache.org/jira/browse/HDFS-6134
> Project: Hadoop HDFS
> Issue Type: New Feature
> Components: security
> Affects Versions: 2.3.0
> Reporter: Alejandro Abdelnur
> Assignee: Alejandro Abdelnur
> Attachments: HDFSDataAtRestEncryption.pdf
>
>
> Because of privacy and security regulations, for many industries, sensitive
> data at rest must be in encrypted form. For example: the healthÂcare industry
> (HIPAA regulations), the card payment industry (PCI DSS regulations) or the
> US government (FISMA regulations).
> This JIRA aims to provide a mechanism to encrypt HDFS data at rest that can
> be used transparently by any application accessing HDFS via Hadoop Filesystem
> Java API, Hadoop libhdfs C library, or WebHDFS REST API.
> The resulting implementation should be able to be used in compliance with
> different regulation requirements.
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