kmsKeyId

The Amazon Web Services KMS key identifier for an encrypted DB instance.

The Amazon Web Services KMS key identifier is the key ARN, key ID, alias ARN, or alias name for the KMS key. To use a KMS key in a different Amazon Web Services account, specify the key ARN or alias ARN.

If the StorageEncrypted parameter is enabled, and you do not specify a value for the KmsKeyId parameter, then Amazon RDS will use your default KMS key. There is a default KMS key for your Amazon Web Services account. Your Amazon Web Services account has a different default KMS key for each Amazon Web Services Region.