RSA authentication requires a set of private and public keys with an alias that functions as a user name.
RSA authentication uses public and private keys instead of passwords to authenticate with the ESP Server to create a secure login system. Each key has an alias that functions as a user name for login. When users connect to the cluster manager, they provide a key alias, a keystore that contains a private key, and a password for the keystore. To sign a message, you must have a private key, and you must also provide the corresponding public key to the server.
The server uses the user name or certificate alias to get the public key from its keystore. The public key verifies the signed message that was sent by the client/user. Your public key must be deployed in the server.