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https://issues.apache.org/jira/browse/KAFKA-7691?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Attila Sasvari reassigned KAFKA-7691:
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Assignee: Attila Sasvari
> Encypt-then-MAC Delegation token metadata
> -----------------------------------------
>
> Key: KAFKA-7691
> URL: https://issues.apache.org/jira/browse/KAFKA-7691
> Project: Kafka
> Issue Type: Improvement
> Reporter: Attila Sasvari
> Assignee: Attila Sasvari
> Priority: Major
>
> Currently delegation token metadata is stored unencrypted in Zookeeper.
> Kafka brokers could implement a strategy called
> [Encrypt-then-MAC|https://en.wikipedia.org/wiki/Authenticated_encryption#Encrypt-then-MAC_(EtM)]
> to encrypt sensitive metadata information about delegation tokens.
> For more details, please read
> https://cwiki.apache.org/confluence/display/KAFKA/KIP-395%3A+Encypt-then-MAC+Delegation+token+metadata
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