Supabase Vault

Supabase Vault is a Postgres extension for managing secrets and encryption inside your database. For self-hosting, pgsodium supports a variety of ways to place the root key into Postgres. To see the decrypted data, there is a special view created called vault. The actual raw key is not available to you in SQL, it is managed entirely outside of the SQL language in the Postgres server. If you take a backup or pause your project, that data remains encrypted.