Authentication of connections to brokers from clients (producers and consumers), other brokers and tools, using either SSL or SASL. Kafka supports the following SASL mechanisms:
SASL/GSSAPI (Kerberos) - starting at version 0.9.0.0
SASL/PLAIN - starting at version 0.10.0.0
SASL/SCRAM-SHA-256 and SASL/SCRAM-SHA-512 - starting at version 0.10.2.0