An autonomous database encrypts data by default at rest and in transit. It can’t be turned off. There are two ways to perform data encryption. These are encryption of data at rest and encryption of data in transit. Let’s discuss these.
Encryption of data at rest
All tablespaces are encrypted using TDE (Transparent Data Encryption). TLS (Transport Layer Security) 1.2 protocol has been applied. Encryption protects the processing, transmission, and storage of data. Each database and its backup have different encryption keys. Database cloning creates a new set of keys.
An autonomous database manages the keys by default and stores them in the Public Key Cryptography Standards (PKCS) 12-key store, but it also has provision to use customer-managed keys created using the OCI Vault service. The customer-managed keys can be rotated regularly to meet the best security standards.
To configure custom-managed keys for Autonomous Database, log in to the OCI...