What does it mean to say a EBS volume is encrypted, wouldn’t that mess up the file system, files? How the OS access it?
When an EBS volume is encrypted, it means:
- Data is encrypted at rest using AES-256.
- Data is encrypted in transit between the volume and EC2 instance.
- Encryption is transparent to the OS.
How it works:
- Encryption happens below the file system level.
- The EC2 hypervisor handles decryption/encryption on-the-fly.
- Your OS reads/writes as usual — no file system corruption or change needed.