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https://issues.apache.org/jira/browse/HADOOP-6419?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12803412#action_12803412
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Doug Cutting commented on HADOOP-6419:
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Kan, this encapsulation looks great. Thank you!
> Change RPC layer to support SASL/token based mutual authentication
> ------------------------------------------------------------------
>
> Key: HADOOP-6419
> URL: https://issues.apache.org/jira/browse/HADOOP-6419
> Project: Hadoop Common
> Issue Type: New Feature
> Components: security
> Reporter: Kan Zhang
> Assignee: Kan Zhang
> Attachments: c6419-26.patch, c6419-39.patch, c6419-45.patch
>
>
> The authentication mechanism to use will be SASL DIGEST-MD5 (see RFC-2222 and
> RFC-2831). Since J2SE 5, Sun provides a SASL implementation by default. Both
> our delegation token and job token can be used as credentials for SASL
> DIGEST-MD5 authentication.
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