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From "Kan Zhang (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-6581) Add authenticated TokenIdentifiers to UGI so that they can be used for authorization
Date Sun, 21 Feb 2010 02:18:27 GMT
Add authenticated TokenIdentifiers to UGI so that they can be used for authorization
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                 Key: HADOOP-6581
                 URL: https://issues.apache.org/jira/browse/HADOOP-6581
             Project: Hadoop Common
          Issue Type: New Feature
          Components: ipc, security
            Reporter: Kan Zhang
            Assignee: Kan Zhang


When token is used for authentication over RPC, information other than username may be needed
for access authorization. This information is typically specified in TokenIdentifier. This
is especially true for block tokens used for client-to-datanode accesses, where authorization
is based on access permissions specified in TokenIdentifier, and not on username. Block tokens
used to be called access tokens and one can think of them as capability tokens. See HADOOP-4359
for more info.

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