Bring Your Own Keys for Apache Kafka on HDInsight

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One of the biggest security and compliance requirements for enterprise customers is to encrypt their data at rest using their own encryption key. This is even more critical in a post-GDPR world. Today, we’re announcing the public preview of Bring Your Own Key (BYOK) for data at rest in Apache Kafka on Azure HDInsight.

 

Azure HDInsight clusters already provide several levels of security. At the perimeter level, traffic can be controlled via Virtual Networks and Network Security Groups. Kerberos authentication and Apache Ranger provide the ability to finely control access to Kafka topics. Further, all managed disks are protected via Azure Storage Service Encryption (SSE). However, for some customers it is vital that they own and manage the keys used to encrypt the data at rest. Some customers achieve this by encrypting all Kafka messages in their producer applications and decrypting them in their consumer applications. This process is cumbersome and involves custom logic. Moreover, it doesn’t allow for usage of community supported connectors.

 

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Read more about it in the Azure blog.

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