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https://issues.apache.org/jira/browse/CASSANDRA-20768?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18007365#comment-18007365
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guo Maxwell commented on CASSANDRA-20768:
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The issues raised in the discussion should be resolved, and then we will
initiate a vote. If there is no objection, the CEP can be accepted.
> CEP-50: Authentication Negotiation
> ----------------------------------
>
> Key: CASSANDRA-20768
> URL: https://issues.apache.org/jira/browse/CASSANDRA-20768
> Project: Apache Cassandra
> Issue Type: Epic
> Components: Client/java-driver, Feature/Authorization
> Reporter: Joel Shepherd
> Assignee: Joel Shepherd
> Priority: Normal
>
> CEP-50 proposes a negotiation mechanism implemented using Cassandra's
> existing native protocol that will enable clients to tell the node what
> authentication mechanisms they support, and enabling the node to use its most
> preferred authenticator that the client supports.
> Link:
> https://cwiki.apache.org/confluence/display/CASSANDRA/CEP-50%3A+Authentication+Negotiation
> The goals of CEP-50 are:
> * Enable clients to negotiate an authentication method with a node at time
> of connection via the existing native protocol.
> * Reduce the effort and risk of changing authentication method for a running
> cluster.
> * Enable operators to more easily enable environment-specific authentication
> mechanisms.
> * Provide seamless backwards-compatible interoperability for existing
> clients and nodes that don't support authenticator negotiation.
> Out-of-scope: {color:#000000}Other initiatives mentioned in CEP-31 —
> user-specific negotiation, multiple role managers, authorization features,
> negotiated inter-node authentication, specific authentication mechanisms —
> are out of scope of this CEP. These additional initiatives are either
> extensions of a basic authenticator negotiation solution, or touch on
> orthogonal concerns like authorization and inter-node authentication.{color}
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