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https://issues.apache.org/jira/browse/SPARK-19139?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15812988#comment-15812988
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Apache Spark commented on SPARK-19139:
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User 'vanzin' has created a pull request for this issue:
https://github.com/apache/spark/pull/16521
> AES-based authentication mechanism for Spark
> --------------------------------------------
>
> Key: SPARK-19139
> URL: https://issues.apache.org/jira/browse/SPARK-19139
> Project: Spark
> Issue Type: New Feature
> Components: Spark Core
> Affects Versions: 2.2.0
> Reporter: Marcelo Vanzin
>
> In SPARK-13331, support for AES encryption was added to the Spark network
> library. But the authentication of different Spark processes is still
> performed using SASL's DIGEST-MD5 mechanism. That means the authentication
> part is the weakest link; since the AES keys are currently encrypted using
> 3des (strongest cipher supported by SASL), Spark can't really claim to
> provide the full benefits of using AES for encryption.
> We should add a new auth protocol that doesn't need these disclaimers.
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