if err != nil {
			return objInfo.ETag
		}
	}

	// As per AWS S3 Spec, ETag for SSE-C encrypted objects need not be MD5Sum of the data.
	// Since server side copy with same source and dest just replaces the ETag, we save
	// encrypted content MD5Sum as ETag for both SSE-C and SSE-KMS, we standardize the ETag
	// encryption across SSE-C and SSE-KMS, and only return last 32 bytes for SSE-C