Difference between master and cluster passphrase

Document ID : KB000071648
Last Modified Date : 22/02/2018
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Question:
What's the different between:
On main menu Gateway Appliance:
             4) Change the Master Passphrase
and on menu option 2
             4) Change the CA API Gateway cluster passphrase 
Answer:
There are 2 components to the encryption in the gateway: 

1. The cluster passphrase: Used to encrypt private keys and passwords within the Gateway database 
2. The master passphrase: Used to encrypt the cluster passphrase 

The master passphrase for each node can be modified from the factory default as it is node specific. Each node in the cluster should use the same cluster passphrase as that cluster passphrase is shared throughout the cluster.