alt Hacker NewsWhy does my text-editor need to do "encryption at rest"? If I want data encrypted, I store it in an encrypted drive with a transparent en/decryption layer.
Why does my text-editor need to do "encryption at rest"? If I want data encrypted, I store it in an encrypted drive with a transparent en/decryption layer.
That is completely valid for personal threat models, I rely on LUKS/BitLocker for my daily driver too.
The specific gap this fills is 'Defense in Depth' + compliance. OS-level encryption (like FDE) is transparent once you log in. If you walk away from an unlocked machine, FDE does nothing.
App-level encryption, however, ensures the specific sensitive notes remain encrypted on disk even while the OS is running and the user is authenticated.
It's also portable as it allows the encrypted blob to be moved across untrusted transports (email, USB, cloud) without needing to set up an encrypted container/volume on the destination.
For FIPS/NIST workflows, relying solely on the OS often isn't enough for the auditor; having the application control the keys explicitly satisfies the 'data protection' control regardless of the underlying storage medium.