The server-side encryption algorithm used when storing this object/part in Amazon S3.

The ID of the AWS Key Management Service (KMS) symemetric customer managed key that was used for the object/part.

Indicates whether the object/part uses an S3 Bucket Key for the server-side encryption with AWS KMS (SSE-KMS).

If server-side encryption with a customer-provided encryption key was requested, this will confirm the algorithm to used for encryption.

Specifies the customer-provided encryption key used to encrypt the object/part data.

If server-side encryption with a customer-provided encryption key was requested, this will be provided for round-trip message integrity verification of the customer-provided encryption key.