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https://issues.apache.org/jira/browse/HADOOP-10863?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14111721#comment-14111721
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Yi Liu commented on HADOOP-10863:
---------------------------------

Thanks [~asuresh] for the patch. [~tucu00], instead of defining a blacklist 
directly, could we add something like ACL policy resolver, then we can 
implement the blacklist resolver. In the future, we may want to add white-list 
or others.

> KMS should have a blacklist for decrypting EEKs
> -----------------------------------------------
>
>                 Key: HADOOP-10863
>                 URL: https://issues.apache.org/jira/browse/HADOOP-10863
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: security
>    Affects Versions: 3.0.0
>            Reporter: Alejandro Abdelnur
>            Assignee: Arun Suresh
>         Attachments: HADOOP-10863.1.patch, HADOOP-10863.2.patch
>
>
> In particular, we'll need to put HDFS admin user there by default to prevent 
> an HDFS admin from getting file encryption keys.



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