A company is storing highly sensitive customer data in Amazon S3 and requires that the data be encrypted at rest. The Chief Security Officer mandates that the encryption solution must allow the company to have full control over the key management process and the ability to rotate encryption keys on a regular basis. Which of the following would BEST meet these requirements?
Encrypt the data client-side before uploading it to Amazon S3
Use default S3 server-side encryption (SSE-S3) which employs managed keys
Use an AWS managed key in AWS KMS without enabling key rotation
Use Amazon S3's object lock feature with versioning enabled
Use a Customer Managed Key in AWS Key Management Service (KMS) with key rotation enabled