{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How is the communication between etcd and validator in a blockchain ensured to be secure?","a":"passwords: Both etcd and validator set up secure passwords for authentication. The password is used for user authentication when establishing a connection, ensuring that only authorized  users can access the system."}]}],"pr":"1408b2e4e963db893a26c60e2e399e4f6aed659ebbde2c173c4fcf0780657aeb"}