Hi, I have filed KIP-48 so we can offer hadoop like delegation tokens in kafka. You can review the design https://cwiki.apache.org/confluence/display/KAFKA/KIP-48+Delegation+token+support+for+Kafka. This KIP depends on KIP-43 and we have also discussed an alternative to proposed design here<https://issues.apache.org/jira/browse/KAFKA-1696?focusedCommentId=15167800&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15167800>.
Thanks Parth