kmsMasterKeyId
The Amazon Resource Name (ARN) or unique identifier (key ID) for the KMS key that's used to encrypt data in the bucket or the object. This value is null if an KMS key isn't used to encrypt the data.
The Amazon Resource Name (ARN) or unique identifier (key ID) for the KMS key that's used to encrypt data in the bucket or the object. This value is null if an KMS key isn't used to encrypt the data.