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https://issues.apache.org/jira/browse/CASSANDRA-7686?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sam Tunnicliffe resolved CASSANDRA-7686.
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    Resolution: Won't Fix

> Add proxy authentication to PasswordAuthenticator
> -------------------------------------------------
>
>                 Key: CASSANDRA-7686
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-7686
>             Project: Cassandra
>          Issue Type: New Feature
>          Components: Core
>            Reporter: Mike Adamson
>             Fix For: 3.0
>
>
> The SASL plain text protocol supports the concept of an authorization ID that 
> is used for any authorization requests during the authenticated session.
>  
> This authorization ID is (optionally) passed during the SASL exchange as part 
> of the SASL plain text message. It is currently ignored by the 
> PasswordAuthenticator.
> This field is typically used by web applications to authenticate using a 
> fixed set of authentication credentials but allow authorization of resources 
> based another user id. It allows the application to authenticate users using 
> their own authentication mechanism without having to store the users 
> credentials to log into the downstream system.
> It would be useful if the PasswordAuthenticator could use this field (if 
> present) as the user id for the AuthenticatedUser instead of the 
> authentication ID currently used.
> This would need a mechanism to allow / deny one user to proxy to another and 
> the ability to check whether proxying is allowed for a user / proxy pair.



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