Apache Kafka is a publish-subscribe messaging system that manages and maintains the real-time stream of data. With Kafka, any user or application can write any messages to any topic or read data from any topic.

To communicate securely with Kafka, you can use SSL authentication. Using SSL authentication, you can encrypt any communication between Kafka brokers, or between client and broker.

Portecle is a user-friendly GUI application that you can use to create, manage, and examine keystores, keys, certificates, certificate requests, and certificate revocation lists.