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https://issues.apache.org/jira/browse/HBASE-26666?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17576447#comment-17576447
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Bryan Beaudreault commented on HBASE-26666:
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Agree on a quick 2.6.0 [~zhangduo]. I also plan to add mutual authentication
(HBASE-27280) before then.
> Add native TLS encryption support to RPC server/client
> ------------------------------------------------------
>
> Key: HBASE-26666
> URL: https://issues.apache.org/jira/browse/HBASE-26666
> Project: HBase
> Issue Type: New Feature
> Components: encryption, security
> Affects Versions: 3.0.0-alpha-2, 2.6.0, 2.4.12, 2.5.1
> Reporter: Josh Elser
> Assignee: Andor Molnar
> Priority: Major
> Labels: SSL, TLS, encryption, security
> Fix For: 2.6.0, 3.0.0-alpha-4
>
>
> Today, HBase must complete the SASL handshake (saslClient.complete()) prior
> to turning on any RPC encryption (hbase.rpc.protection=privacy,
> sasl.QOP=auth-conf).
> This is a problem because we have to transmit the bearer token to the server
> before we can complete the sasl handshake. This would mean that we would
> insecurely transmit the bearer token (which is equivalent to any other
> password) which is a bad smell.
> Ideally, if we can solve this problem for the oauth bearer mechanism, we
> could also apply it to our delegation token interface for digest-md5 (which,
> I believe, suffers the same problem).
> The plan is to port Server/Client TLS implementation from the ZooKeeper
> project. It's a Netty based solution which looks like the best fit for
> NettyRpc client/server.
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