kmsKeyName

The resource name of the Cloud KMS CryptoKey to be used to protect access to messages published on this topic. Your project's PubSub service account (service-{{PROJECT_NUMBER}}@gcp-sa-pubsub.iam.gserviceaccount.com) must have roles/cloudkms.cryptoKeyEncrypterDecrypter to use this feature. The expected format is projects/*/locations/*/keyRings/*/cryptoKeys/* ////