SQL server's Transparent Data Encryption (TDE) protector should be encrypted with a customer-managed key
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Description
By default, the TDE protector managed by Microsoft is enabled for a SQL server, but with customer-managed key support, users gain control over Transparent Data Encryption (TDE) encryption keys. This support allows for the encryption of the TDE protector with a key managed by the data owner, providing increased transparency and control. Azure Key Vault, a cloud-based key store, offers central key management and the use of hardware security modules (HSMs) for enhanced security. When deploying customer-managed keys, it is essential to have an automated toolset for key management, including discovery and rotation, and to store the keys in an HSM or hardware-backed keystore. Additionally, it is recommended to check with your cryptographic key provider for any available add-ons or toolsets related to key management.
From the console
- Go to SQL servers.
- For your server instance, click Transparent data encryption.
- Set Transparent data encryption to Customer-managed key.
- Browse through your key vaults to select an existing key or create a new key in the Azure Key Vault.
- Check Make selected key the default TDE protector.
